| Rfc | 4323 |
|---|
| Title | Data Over Cable System Interface Specification Quality of Service
Management Information Base (DOCSIS-QoS MIB) |
|---|
| Author | M. Patrick, W. Murwin |
|---|
| Date | January 2006 |
|---|
| Format: | TXT, HTML |
|---|
| Updated by | RFC9141 |
|---|
| Status: | PROPOSED STANDARD |
|---|
|
Network Working Group M. Patrick
Request for Comments: 4323 W. Murwin
Category: Standards Track Motorola BCS
January 2006
Data Over Cable System Interface Specification
Quality of Service
Management Information Base (DOCSIS-QoS MIB)
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2006).
Abstract
This document defines a basic set of managed objects for SNMP-based
management of extended QoS features of Cable Modems (CMs) and Cable
Modem Termination Systems (CMTSs) conforming to the Data over Cable
System (DOCSIS) specifications versions 1.1 and 2.0.
Table of Contents
1. Introduction ....................................................2
1.1. The Internet-Standard Management Framework .................2
1.2. Glossary ...................................................3
2. Overview ........................................................5
2.1. Textual Conventions ........................................5
2.2. MIB Organization ...........................................5
2.2.1. docsIetfQosPktClassTable ............................9
2.2.2. docsIetfQosParamSetTable ...........................10
2.2.2.1. Interoperation with DOCSIS 1.0 ............11
2.2.3. docsIetfQosServiceFlowTable ........................12
2.2.4. docsIetfQosServiceFlowStatsTable ...................13
2.2.5. docsIetfQosUpstreamStatsTable ......................14
2.2.6. docsIetfQosDynamicServiceStatsTable ................14
2.2.7. docsIetfQosServiceFlowLogTable .....................14
2.2.8. docsIetfQosServiceClassTable .......................15
2.2.9. docsIetfQosServiceClassPolicyTable .................15
2.2.10. docsIetfQosPHSTable ...............................16
2.2.11. docsIetfQosCmtsMacToSrvFlowTable ..................16
3. Externally Administered Classification .........................16
4. DOCSIS and IPv4 Type-of-Service (ToS) Field ....................19
5. Definitions ....................................................20
6. Security Considerations ........................................84
7. IANA Considerations ............................................86
8. Acknowledgements ...............................................86
9. Normative References ...........................................86
10. Informative References ........................................87
1. Introduction
This memo is a product of the IP over Cable Data Network (IPCDN)
working group within the Internet Engineering Task Force (IETF).
1.1. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [15].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [1], STD 58, RFC 2579 [2] and STD 58, RFC 2580 [3].
1.2. Glossary
Active QPS Active QoS Parameter Set (QPS). The set of QoS
parameters that describe the current level of service
provided to a Service Flow (SF).
Active SF Active Service Flow. An SF with a non-empty Active
QPS.
Admitted QPS Admitted QoS Parameter Set. The set of QoS
parameters that describe a level of service that the
Service Flow is not currently using, but that it is
guaranteed to receive upon the SF's request to make
the set Active.
Admitted SF A Service Flow with a non-empty Admitted QPS.
CATV Cable Television.
CM Cable Modem. A modem connecting a subscriber's LAN
to the Cable Television (CATV) Radio Frequency (RF)
network. DOCSIS CMs operate as a MAC layer bridge
between the home LAN and the Cable Television (CATV)
Radio Frequency (RF) network.
CMTS Cable Modem Termination System. The "head-end"
device providing connectivity between the RF network
and the Internet.
Downstream The direction from the head-end towards the
subscriber.
DSA Dynamic Service Addition. A DOCSIS MAC management
message requesting the dynamic creation of a new
Service Flow. New SFs are created with a three-
message exchange of a DSA-REQ, DSA-RSP, and DSA-ACK.
DSC Dynamic Service Change. A DOCSIS MAC management
message requesting a change to the attributes of a
Service Flow. SFs are changed with a three-message
exchange of a DSC-REQ, DSC-RSP, and DSC-ACK.
DSD Dynamic Service Delete. A DOCSIS MAC management
message requesting the deletion of a Service Flow.
SFs are deleted with a two-message exchange of a
DSD-REQ and DSD-ACK.
Head-end The origination point in most cable systems of the
subscriber video signals. It is generally also the
location of the CMTS.
PHS Payload Header Suppression. A feature of DOCSIS 1.1
and 2.0 in which header bytes that are common in a
sequence of packets of a Service Flow are replaced by
a one-byte PHSI Index (PHSI) when transmitting the
packet on the RF network.
primary SF Primary Service Flow. All CMs have a Primary
Upstream Service Flow and a Primary Downstream
Service Flow. They provide a default path for
forwarded packets that are not classified to any
other Service Flow.
Provisioned QPS A QoS Parameter Set describing an envelope of service
within which a Service Flow is authorized to request
admission. All existing Service Flows must have a
non-empty Provisioned QPS; thus, all SFs are
considered to be "Provisioned".
RF Radio Frequency. In particular, this abbreviation
refers to the radio frequencies for Cable Television
(CATV).
SCN Service Class Name. A named set of QoS parameters.
A Service Flow may or may not be associated with a
single named Service Class. A Service Class has as
an attribute a QoS Parameter Set that is used as the
default set of values for all Service Flows belonging
to the Service Class.
SID Service ID. A 16-bit unsigned integer assigned by
the CMTS for an Upstream Service Flow with a non-
empty Active QoS Parameter Set.
SF Service Flow. A unidirectional stream of packets
between the CM and CMTS. SFs are characterized as
upstream or downstream. The SF is the fundamental
unit of service provided on a DOCSIS CATV network.
SFID Service Flow ID. A 32-bit unsigned integer assigned
by the CMTS to each Service Flow.
Upstream The direction from a subscriber CM to the head-end
CMTS.
2. Overview
This MIB module provides a set of objects required for the management
of DOCSIS 1.1 and 2.0 compliant Cable Modems (CM) and Cable Modem
Termination Systems (CMTS). The specification is derived from the
DOCSIS 2.0 Radio Frequency Interface specification [4]. Please note
that the referenced DOCSIS specifications only requires Cable Modems
to process IPv4 customer traffic. Design choices in this MIB module
reflect those requirements. Future versions of the DOCSIS standard
are expected to require support for IPv6 as well.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [5].
2.1. Textual Conventions
The textual convention "DocsIetfQosRfMacIfDirection" is defined to
indicate the direction of a packet classifier relative to an
interface. It takes the values of either downstream(1) or
upstream(2).
The textual convention "DocsIetfQosBitRate" corresponds to the bits
per second as defined for QoS Parameter Sets in DOCSIS 1.1 and 2.0.
This definition includes all bits of the Ethernet MAC frame as
transmitted on the RF network, starting with the Destination Address
and ending with the Ethernet Frame Check Sequence (FCS). It does NOT
includes bits in the DOCSIS MAC header.
2.2. MIB Organization
The structure of the IPCDN QoS MIB module (DOCS-IETF-QOS-MIB) is
summarized below:
docsIetfQosMIB
docsIetfQosMIBObjects
docsIetfQosPktClassTable
docsIetfQosPktClassEntry
docsIetfQosPktClassId
docsIetfQosPktClassDirection
docsIetfQosPktClassPriority
docsIetfQosPktClassIpTosLow
docsIetfQosPktClassIpTosHigh
docsIetfQosPktClassIpTosMask
docsIetfQosPktClassIpProtocol
docsIetfQosPktClassInetAddressType
docsIetfQosPktClassInetSourceAddr
docsIetfQosPktClassInetSourceMask
docsIetfQosPktClassInetDestAddr
docsIetfQosPktClassInetDestMask
docsIetfQosPktClassSourcePortStart
docsIetfQosPktClassSourcePortEnd
docsIetfQosPktClassDestPortStart
docsIetfQosPktClassDestPortEnd
docsIetfQosPktClassDestMacAddr
docsIetfQosPktClassDestMacMask
docsIetfQosPktClassSourceMacAddr
docsIetfQosPktClassEnetProtocolType
docsIetfQosPktClassEnetProtocol
docsIetfQosPktClassUserPriLow
docsIetfQosPktClassUserPriHigh
docsIetfQosPktClassVlanId
docsIetfQosPktClassStateActive
docsIetfQosPktClassPkts
docsIetfQosPktClassBitMap
docsIetfQosParamSetTable
docsIetfQosParamSetEntry
docsIetfQosParamSetServiceClassName
docsIetfQosParamSetPriority
docsIetfQosParamSetMaxTrafficRate
docsIetfQosParamSetMaxTrafficBurst
docsIetfQosParamSetMinReservedRate
docsIetfQosParamSetMinReservedPkt
docsIetfQosParamSetActiveTimeout
docsIetfQosParamSetAdmittedTimeout
docsIetfQosParamSetMaxConcatBurst
docsIetfQosParamSetSchedulingType
docsIetfQosParamSetNomPollInterval
docsIetfQosParamSetTolPollJitter
docsIetfQosParamSetUnsolicitGrantSize
docsIetfQosParamSetNomGrantInterval
docsIetfQosParamSetTolGrantJitter
docsIetfQosParamSetGrantsPerInterval
docsIetfQosParamSetTosAndMask
docsIetfQosParamSetTosOrMask
docsIetfQosParamSetMaxLatency
docsIetfQosParamSetType
docsIetfQosParamSetRequestPolicyOct
docsIetfQosParamSetBitMap
docsIetfQosServiceFlowTable
docsIetfQosServiceFlowEntry
docsIetfQosServiceFlowId
docsIetfQosServiceFlowSID
docsIetfQosServiceFlowDirection
docsIetfQosServiceFlowPrimary
docsIetfQosServiceFlowStatsTable
docsIetfQosServiceFlowStatsEntry
docsIetfQosServiceFlowPkts
docsIetfQosServiceFlowOctets
docsIetfQosServiceFlowTimeCreated
docsIetfQosServiceFlowTimeActive
docsIetfQosServiceFlowPHSUnknowns
docsIetfQosServiceFlowPolicedDropPkts
docsIetfQosServiceFlowPolicedDelayPkts
docsIetfQosUpstreamStatsTable
docsIetfQosUpstreamStatsEntry
docsIetfQosSID
docsIetfQosUpstreamFragments
docsIetfQosUpstreamFragDiscards
docsIetfQosUpstreamConcatBursts
docsIetfQosDynamicServiceStatsTable
docsIetfQosDynamicServiceStatsEntry
docsIetfQosIfDirection
docsIetfQosDSAReqs
docsIetfQosDSARsps
docsIetfQosDSAAcks
docsIetfQosDSCReqs
docsIetfQosDSCRsps
docsIetfQosDSCAcks
docsIetfQosDSDReqs
docsIetfQosDSDRsps
docsIetfQosDynamicAdds
docsIetfQosDynamicAddFails
docsIetfQosDynamicChanges
docsIetfQosDynamicChangeFails
docsIetfQosDynamicDeletes
docsIetfQosDynamicDeleteFails
docsIetfQosDCCReqs
docsIetfQosDCCRsps
docsIetfQosDCCAcks
docsIetfQosDCCs
docsIetfQosDCCFails
docsIetfQosServiceFlowLogTable
docsIetfQosServiceFlowLogEntry
docsIetfQosServiceFlowLogIndex
docsIetfQosServiceFlowLogIfIndex
docsIetfQosServiceFlowLogSFID
docsIetfQosServiceFlowLogCmMac
docsIetfQosServiceFlowLogPkts
docsIetfQosServiceFlowLogOctets
docsIetfQosServiceFlowLogTimeDeleted
docsIetfQosServiceFlowLogTimeCreated
docsIetfQosServiceFlowLogTimeActive
docsIetfQosServiceFlowLogDirection
docsIetfQosServiceFlowLogPrimary
docsIetfQosServiceFlowLogServiceClassName
docsIetfQosServiceFlowLogPolicedDropPkts
docsIetfQosServiceFlowLogPolicedDelayPkts
docsIetfQosServiceFlowLogControl
docsIetfQosServiceClassTable
docsIetfQosServiceClassEntry
docsIetfQosServiceClassName
docsIetfQosServiceClassStatus
docsIetfQosServiceClassMaxTrafficRate
docsIetfQosServiceClassMaxTrafficBurst
docsIetfQosServiceClassMinReservedRate
docsIetfQosServiceClassMinReservedPkt
docsIetfQosServiceClassMaxConcatBurst
docsIetfQosServiceClassNomPollInterval
docsIetfQosServiceClassTolPollJitter
docsIetfQosServiceClassUnsolicitGrantSize
docsIetfQosServiceClassNomGrantInterval
docsIetfQosServiceClassTolGrantJitter
docsIetfQosServiceClassGrantsPerInterval
docsIetfQosServiceClassMaxLatency
docsIetfQosServiceClassActiveTimeout
docsIetfQosServiceClassAdmittedTimeout
docsIetfQosServiceClassSchedulingType
docsIetfQosServiceClassRequestPolicy
docsIetfQosServiceClassTosAndMask
docsIetfQosServiceClassTosOrMask
docsIetfQosServiceClassDirection
docsIetfQosServiceClassStorageType
docsIetfQosServiceClassDSCPOverwrite
docsIetfQosServiceClassPolicyTable
docsIetfQosServiceClassPolicyEntry
docsIetfQosServiceClassPolicyIndex
docsIetfQosServiceClassPolicyName
docsIetfQosServiceClassPolicyRulePriority
docsIetfQosServiceClassPolicyStatus
docsIetfQosServiceClassPolicyStorageType
docsIetfQosPHSTable
docsIetfQosPHSEntry
docsIetfQosPHSField
docsIetfQosPHSMask
docsIetfQosPHSSize
docsIetfQosPHSVerify
docsIetfQosPHSIndex
docsIetfQosCmtsMacToSrvFlowTable
docsIetfQosCmtsMacToSrvFlowEntry
docsIetfQosCmtsCmMac
docsIetfQosCmtsServiceFlowId
docsIetfQosCmtsIfIndex
This MIB module is organized as 11 tables. Most tables are
implemented in both the CM and CMTS; the
docsIetfQosUpstreamStatsTable and docsIetfQosServiceFlowLogTable are
implemented on the CMTS only.
2.2.1. docsIetfQosPktClassTable
The docsIetfQosPktClassTable reports the Service Flow Classifiers
implemented by the managed device. The table is indexed by the tuple
{ ifIndex, docsIetfQosServiceFlowId, docsIetfQosPktClassId }. The
ifIndex corresponds to a CATV MAC interface. Each CATV MAC interface
has a set of Service Flows identified with a docsIetfQosServiceFlowId
value that is unique for that interface. Each Service Flow may have
a number of packet classifiers that map packets to the flow. The
ClassifierId for the classifier is unique only within a particular
Service Flow.
The semantics of packet classification are provided in [4]. Briefly,
the DOCSIS MAC interface calls for matching packets based on values
within the 802.2 (LLC), 802.3, IP, and/or UDP/TCP headers. Packets
that map more than one classifier are prioritized according to their
docsIetfQosPktClassPriority values. The docsIetfQosServiceFlowId (an
index object) indicates to which Service Flow the packet is
classified.
The docsIetfQosPktClassTable is distinct from the
docsDevIpFilterTable of [6] in that docsIetfQosPktClassTable is
intended only to reflect the state of the Service Flow Classifiers.
Service Flow Classifiers may be created only via a CM configuration
file or from the Dynamic Service Addition (DSA) messages. For this
reason, docsIetfQosPktClassTable is read-only.
The docsDevIpFilterTable is intended for external policy-based
administration of packet classifiers. See the section "Externally
Administered Classification", below.
2.2.2. docsIetfQosParamSetTable
The docsIetfQosParamSetTable reports the values of QoS Parameter Set
as defined in Section C.2.2 of [4].
In general, a Service Flow is associated with three different QoS
Parameter Sets (QPSs): an "active" QPS, an "admitted" QPS, and a
"provisioned" or "authorized" QPS. The relationship of these three
sets is represented below:
+---------------------+
| Provisioned |
| |
| +---------------+ |
| | Admitted | |
| | | |
| | +---------+ | |
| | | Active | | |
| | | | | |
| | +---------+ | |
| | | |
| +---------------+ |
| |
+---------------------+
Figure 1: QoS Parameter Sets
The Provisioned QPS describes the maximum service envelope for which
the SF is authorized. The Admitted QPS is the set of services for
which a Service Flow has requested admission to the DOCSIS RF
network, but which is not yet active. The Admitted QPS is used
during the two-phase process of IP Telephony/PacketCable Service Flow
admission to admit the bandwidth for a bidirectional voice call when
the far end is ringing. Because ringing may occur for up to four
minutes, this permits the bandwidth to be reserved but not actually
consumed during this interval. The Active QPS is the set of services
actually being used by the Service Flow. The DOCSIS v1.1
specification [4] defines what it means for a QPS envelope to be
"within" another. In general, an inner QPS is considered "within" an
outer QPS when all QoS parameters represent demands of equal or fewer
resources of the network.
In addition to its use as an attribute of a Service Flow, a QPS is
also an attribute of a Service Class. A DOCSIS CM configuration file
or DSA message may request the creation of a new SF and give only the
Service Class Name. The CMTS "expands the macro" of a Service Class
Name creation by populating the Provisioned, Admitted, and/or Active
QPSs of the Service Flow with the QPS of the Service Class Name. All
the QPSs of a Service Flow must be expansions of the same Service
Class, and in this case the SF is said to "belong" to the Service
Class. Changing the contents of a Service Class' QPS does not affect
the QPS of any Service Flow earlier expanded from that Service Class
name. Only the CMTS implements docsIetfQosServiceClassTable.
See [4], section 8, for a full description and the theory of
operation of DOCSIS 1.1 QoS operation.
The docsIetfQosParamSetTable sets are indexed by { ifIndex,
docsIetfQosServiceFlowId, docsIetfQosParamSetType}. ifIndex
indicates a particular "DOCSIS MAC Domain". docsIetfQosServiceFlowId
uniquely identifies a Service Flow on that MAC domain. The
docsIetfQosParamSetType indicates whether the row describes an
active, admitted, or provisioned QoS Parameter Set.
The docsIetfQosParamSetTable is read-only because it indicates the
QoS Parameter Set contents as defined by DOCSIS signaling. The
docsIetfQosServiceClassTable is read-create to permit managers to
define a template of QoS Parameters that can be referenced by DOCSIS
modems when creating their QoS Parameter Sets.
2.2.2.1. Interoperation with DOCSIS 1.0
The DOCS-IF-MIB [7] specifies a docsIfQosProfileTable to describe the
set of Class Of Service (COS) parameters associated with a COS
"profile". The docsIfCmServiceTable, which contains one entry per
SID, references this table with a docsIfCmServiceQosProfile number.
The DOCSIS 1.1 and 2.0 CM registration process allows a modem to
register as operating with DOCSIS 1.0, DOCSIS 1.1, or DOCSIS 2.0
functionality. For ease of expression, we call a modem registering
with DOCSIS 1.0 functionality a "DOCSIS 1.0 modem", regardless of the
modem's capabilities.
A CMTS or CM supporting DOCSIS 1.0, as well as DOCSIS 1.1, and/or
DOCSIS 2.0 implements both the tables of [7] and the tables of this
MIB module. The interoperation goal is that before modem
registration, the DOCSIS 1.0 MIB [7] applies. After registration,
either the DOCSIS 1.0 or DOCSIS 1.1/2.0 MIB applies, depending on the
mode with which the modem registered. The specific interoperation
rules are:
1. When a CM initially ranges, the CM implements a row in the
DOCS-IF-MIB docsIfCmServiceTable, and the CMTS implements a row
in the DOCS-IF-MIB docsIfCmtsServiceTable corresponding to the
default upstream Service ID (SID) used for pre-registration
upstream traffic. For historical compatibility, a row may be
created for the docsIfQosProfileTable with default values,
which may be referenced by the docsIfCmServiceTable entries.
2. Both a CMTS and CM implementing this MIB MUST NOT implement
docsIetfQosParamSetTable or docsIetfQosServiceFlowTable rows
until after the CM registers with DOCSIS 1.1 or 2.0 modem
operation.
3. When a modem registers with the CMTS as a "DOCSIS 1.1" or
"DOCSIS 2.0" modem, any exclusively-referenced row in DOCS-IF-
MIB docsIfQosProfileTable representing the modem's upstream QoS
profile for pre-registration traffic MUST be removed.
Multiply-referenced rows may remain. The
docsIfCmServiceQosProfile object in the CM's row of
docsIfCmServiceTable MUST be set to zero. The
docsIfCmServiceTable row for the DOCSIS 1.1 or DOCSIS 2.0 modem
continues to exist, and the various statistic objects in that
row are incremented. The CMTS should retain a
docsIfCmtsServiceTable entry for the DOCSIS 1.1 or DOCSIS 2.0
CM.
4. When a DOCSIS 1.1 or DOCSIS 2.0 modem registers, both the CMTS
and CM represent all Service Flows described in the modem
configuration file in docsIetfQosParamSetTable and
docsIetfQosServiceFlowTable.
5. DOCSIS 1.0 modems do not have entries in the DOCS-IETF-QOS-MIB.
2.2.3. docsIetfQosServiceFlowTable
The docsIetfQosServiceFlowTable provides read-only information about
all the Service Flows known by the device. It is indexed by the
combination of { ifIndex, dosQosServiceFlowId }, where ifIndex
corresponds to a CATV MAC interface and docsIetfQosServiceFlowId is
the 32-bit integer assigned by the CMTS controlling the MAC domain.
A CM typically has only a single CATV MAC interface, whereas a CMTS
may have several. See [7] for a description of the ifIndex numbering
for DOCSIS devices.
The table indicates whether a given SF is in the upstream or
downstream direction, and whether it is the "primary" SF in that
direction. The primary SF carries traffic that is not otherwise
classified to any other SF in that direction.
2.2.4. docsIetfQosServiceFlowStatsTable
The docsIetfQosServiceFlowStatsTable provides statistics for all
currently existing SFs known by the managed device. It provides
basic packet and octet counters, as well as certain other SF-specific
stats such as the time at which the flow was created and how many
seconds it has been active.
The table also provides objects that can be used to fine-tune
admission control decisions; namely, the number of packets dropped or
delayed due to QoS policing decisions enforced by the managed device.
The model of the Service Flows stats table is that there exists a
Service Flow Classification function followed by a Service Flow
maximum rate Policing function for packets transmitted onto the
DOCSIS RF network, as depicted below.
+----------+
+------------+ clsfy 1 -----+ | Per-SF | forwarded
Pkts | |-----------> | | Maximum |-> for DOCSIS
----->| Classify | clsfy 2 SF1 |--> | Rate | RF Network
| Function |-----------> | | Policing | transmission
| | -----+ | Function |
| | | |----+
| | | | |
| | +----------+ Dropped
+------------+ | ^
+----+ Delayed
Packets intended for transmission onto the DOCSIS RF network
(upstream or downstream) are first classified to a Service Flow by
matching one of several possible classifiers associated with that
Service Flow. The docsIetfQosPktClassPkts count includes the number
of packets that match the classifier, regardless of the eventual
disposition of the packet.
DOCSIS requires that each Service Flow be policed to maintain a
maximum rate of transmission. This is performed by either dropping
or delaying a packet on that Service Flow. The
docsIetfQosServiceFlowPolicedDropPkts object counts the number of
Service Flow packets dropped by the policing function. The
docsIetfQosServiceFlowPolicedDelayPkts counts the number of packets
delayed but still forwarded. The docsIetfQosServiceFlowPkts object
counts the total number of packets forwarded beyond the policing
function intended for eventual transmission onto the DOCSIS RF
network. Although packets may later be dropped by other functions
(e.g., a transmit queue overflow on a DOCSIS hardware transmitter),
the docsIetfQos MIB per service-flow counters are not affected.
2.2.5. docsIetfQosUpstreamStatsTable
This table provides statistics that are measured only at the CMTS in
the upstream direction. These include counts of fragmentation
headers received, fragments discarded, and concatenation headers
received.
2.2.6. docsIetfQosDynamicServiceStatsTable
This table provides read-only stats on the operation of the Dynamic
Service state machines as specified in section 9.4 of [4]. It
provides a set of 14 counters in each direction for a DOCSIS MAC
layer interface. That is, each DOCSIS MAC layer interface has one
row for downstream stats and a second row for upstream stats.
Eight of the counters are DSx packet type counts, one counter for
each of the eight DSx packet types. For example, the
docsIetfQosDSAReqs object in the upstream row at the CMTS counts the
number of DSA-REQ messages received by the CMTS from that interface.
The docsIetfQosDSAReqs object in the downstream row at the CMTS
counts the number of DSA-REQ messages transmitted by the CMTS on that
interface.
The remaining six counters per (interface, direction) combination
count the number of successful and unsuccessful transactions that
were initiated on the interface and direction. For example, the
upstream docsIetfQosDynamicAdds on a CMTS is the number of
successfully completed CM-initiated dynamic additions, because at the
CMTS a CM-initiated DSA starts in the upstream direction. The
downstream docsIetfQosDynamicAdds at a CMTS is the number of
successful CMTS-initiated DSA transactions.
Dynamic service transactions can fail for a number of reasons, as
listed in the state machines of section 9.4. Rather than include
still more counters for each different failure reason, they are
grouped into a single count, e.g., docsIetfQosDynamicAddFails.
Again, this object exists in both directions, so that locally
originated and remotely originated transaction failures are counted
separately. Further troubleshooting of transaction failures will
require vendor-specific queries and operation.
2.2.7. docsIetfQosServiceFlowLogTable
This table contains a log of the Service Flows that no longer exist
in the docsIetfQosServiceFlowTable. It is intended to be
periodically polled by traffic monitoring and billing agents. It is
implemented only at the CMTS.
It contains a chronological log of SF session statistics, including a
total count of packets and octets transferred on the SF. It includes
time stamps of the SF creation and deletion time, and of its number
of active seconds. The active second count is the count of seconds
that the SF had a non-empty Active QoS Parameter Set, i.e., it was
eligible to pass data. For unicast SFs, it includes the CM MAC
address associated with the flow for billing reference purposes.
The maximum number of log records kept by a CMTS and the duration
that a log record is maintained in the table are vendor-specific. An
explicit control object is provided so that the monitoring
application can explicitly delete records it has read.
2.2.8. docsIetfQosServiceClassTable
This table defines the Service Class Name and references a QoS
Parameter Set for each Service Class defined in a CMTS. It is
indexed by the Service Class Name string itself. The table is read-
create on a CMTS, and is not implemented in a CM. Each entry of the
docsIetfQosServiceClassTable should define a template for flows in a
given direction (upstream or downstream). Some parameters of the
docsIetfQosServiceClassTable are specific to a particular direction,
and so their values are not applicable when used as a template for
flows in the other direction.
2.2.9. docsIetfQosServiceClassPolicyTable
The docsIetfQosServiceClassPolicyTable can be referenced by the
docsDevFilterPolicyTable of [6] in order to have a "policy" that
classifies packets to a named Service Class. This is one mechanism
by which "external" entities (such as an SNMP manager) may control
the classification of a packet for QoS purposes. Entries are indexed
by a small-integer docsIetfQosServiceClassPolicyIndex. They provide
a Service Class Name and a Rule Priority. A policy referencing a row
of this table intends the packet to be forwarded on a Service Flow
"belonging" to the named Service Class. See section 3, "Externally
Administered Classification", below.
This table is implemented on both the CM and CMTS, and is read-create
on both.
2.2.10. docsIetfQosPHSTable
The Payload Header Suppression (PHS) feature of DOCSIS 1.1 and 2.0
permits packets to replace the unchanging bytes of the Ethernet, IP,
and UDP headers with a one-byte index when transmitting on the cable
network. This is especially useful for IP Telephony packets, where
such suppression can result in almost twice the number of calls
supported within the same upstream channel.
Each entry of the table corresponds to a PHS Rule as described in
section 8.4 of [4]. The rules are identified by their corresponding
Service Flow ID and docsIetfQosPktClassId. A PHS rule is associated
with exactly one classifier. The table is therefore indexed by the
tuple { ifIndex, docsIetfQosServiceFlowId, docsIetfQosPktClassId}.
This table is read-only, and MUST be implemented on both the CM and
CMTS when PHS is supported.
2.2.11 docsIetfQosCmtsMacToSrvFlowTable
The docsIetfQosCmtsMacToSrvFlowTable describes the mapping of CM MAC
addresses to the Service Flow IDs that are uniquely identified with
that CM. External applications may collect statistics on all packets
flowing through a CM by determining the SFID of all of its flows, and
then collecting the statistics of packets and bytes for each flow.
Downstream multicast Service Flows are not indicated in the
docsIetfQosCmtsMacToSrvFlowTable because they are not associated with
only one CM.
3. Externally Administered Classification
DOCSIS 1.1 and 2.0 provide rich semantics for the classification of
packets to Service Flows with the Service Flow Classifier table.
Service Flow Classifiers may be created statically in the DOCSIS CM
configuration file, or may be created dynamically with Dynamic
Service Addition (DSA) and Dynamic Service Change (DSC) DOCSIS MAC
messages.
Several major issues arose with the concept of externally
administered classification; e.g., should an external SNMP manager be
permitted to create classification rows? One problem was the
coordination of classifier IDs because such an approach would require
either separate classifier ID number spaces or objects to coordinate
both internal and external classifier ID assignments. A more serious
problem, however, was that external creation of SF Classifiers would
require "knowledge" of the individual Service Flow ID for Service
Flows by external applications. It was strongly felt by the
committee that SFIDs should remain internal DOCSIS objects, and not
be transmitted as part of protocol flows, e.g., for IP packet
telephony signaling. DOCSIS 1.1 introduced the concept of named
Service Classes for ease of administration within a domain of CMs and
CMTSs. What was desired was to permit external classification of
packets to a Service Class, not to a particular Service Flow.
The DOCSIS committee therefore decided to use the already-defined IP
Packet Filter Table [6] for the external classification of packets
for QoS purposes. The docsDevIpPacketFilterTable defines similar
packet matching criteria as does docsIetfQosPktClassTable, but it
matches a packet to an arbitrary "policy set" instead of a particular
Service Flow. One of the policies in the policy set then selects the
Service Class of the SF on which to forward the packet. The
docsIetfQosServiceClassPolicyTable of this MIB module defines the
Service Class Name to which a packet is classified.
The interaction of external and internal packet classification is
depicted below.
|
| Outbound Pkt
V
docsDevIpFilterTable------> docsDevFilterPolicyTable
| |
| V
| docsIetfQosServiceClassPolicyTable
| |
Pkt | ServiceClassName,|
| ServiceClassPolicyRulePriority|
V V
+--------------------------------------------------------+
| | DOCSIS MAC LAYER ENTITY | |
| | | Select |
| V | any |
| docsIetfQosPktClassTable <--------------| SFID Y |
| | | in SCN |
| | docsIetfQosPktClassPriority, | |
| | SFID X | |
| V V |
| +--------------------------------------------+ |
| | Select the SFID associated with the | |
| | higher of docsIetfQosPktClassPriority or | |
| | docsIetfQosServiceClassPolicyRulePriority | |
| +--------------------------------------------+ |
| | |
| V |
| | | | | |
| | | ... | | Service Flows |
| +----+ +----+ |
| SFID X SFID Y |
+--------------------------------------------------------+
Figure 2: DOCSIS Packet Classification
The processing of an outgoing packet proceeds as follows:
1. The packet is first checked for matches with rows of the
docsDevIpFilterTable. If it matches, the matching row provides
a docsDevFilterPolicyId integer.
2. The docsDevFilterPolicyId indexes into one (or more) rows of
docsDevFilterPolicyTable. Each row provides an arbitrary
RowPointer (docsDevFilterPolicyPtr), corresponding to a policy
to be applied to the packet.
3. This MIB module defines a docsIetfQosServiceClassPolicyTable
whose entries may be pointed to by docsDevFilterPolicyPtr in
order to classify packets administratively to a named DOCSIS
Service Class. The docsIetfQosServiceClassPolicyEntry provides
a Service Class Name (SCN) as docsIetfQosServiceClassPolicyName
and a classification rule priority as
docsIetfQosServiceClassPolicyRulePriority. These are submitted
to the device's DOCSIS MAC Layer entity as a special form of
the MAC_DATA.request primitive, as described in Section E.2.1
of [4].
4. The MAC Layer selects an SFID ("Y") of an active Service Flow
belonging to the named class, choosing an SF arbitrarily if
there is more than one.
5. The packet is then classified according to the
docsIetfQosPktClassTable, which may classify the packet to a
different SFID "X". Associated with the classifier is a
docsIetfQosPktClassPriority.
6. In the event of a conflict between the SCN-determined SFID and
the classified SFID, the greater of docsIetfQosPktClassPriority
and docsIetfQosServiceClassPolicyRulePriority determines which
SFID is selected to forward the packet.
A packet that does not match a docsIetfQosServiceClassPolicyEntry is
directly submitted to the DOCSIS MAC layer, where the
docsIetfQosPktClassTable selects the SID on which it is to be
forwarded.
By convention (in [4]), the "internal" docsIetfQosPktClassPriority
values should be in the range 64-191, while the "external" priorities
may be either in the range 192-255 to override the internal
classification or in the range 0-63 to be overridden by internal
classification.
This classification mechanism applies both upstream from the CM and
downstream from the CMTS.
4. DOCSIS and IPv4 Type-of-Service (ToS) Field
The DOCSIS-IETF-QOS-MIB MIB module relies on the DOCSIS MAC layer
protocols and uses objects that reflect the IPv4 Type-of-Service
(ToS) octet as defined in [14]. The applicability of these objects
is limited to the DOCSIS access network. The past and current
versions of the DOCSIS specifications for which this MIB module is
defined do not reflect Differentiated Services [9] on the DOCSIS
access network. However, with proper selection of values for these
objects, the network operator can enforce Differentiated Services
Per-hop Behaviors (PHBs) on the DOCSIS Access Network, and can
configure the modification of the DSCP for certain packet flows as
they enter the metro network from the access network. Essentially
this makes the DOCSIS access network TOS marking compatible with the
wider use of DSCP outside DOCSIS networks. Note that because the
entire IPv4 TOS octet may be available for modification via the
latter mechanism (due to the current MAC level DOCSIS protocols and
CLI interface configuration), it is possible that the DOCSIS network
could be configured to modify the Explicit Congestion Notification
(ECN) bits [10] of certain packets. This modification of the ECN
bits is prevented by the MIB module's design. The MIB module
prohibits the modification of the TOS octet (read-only objects:
docsIetfQosPktClassIpTosLow, docsIetfQosPktClassIpTosHigh
docsIetfQosPktClassIpTosMask, docsIetfQosParamSetTosAndMask,
docsIetfQosParamSetTosOrMask) and allows the DSCP field to be
modified (read-create object: docsIetfQosServiceClassDSCPOverwrite).
5. Definitions
This MIB module refers to the SNMPv2-SMI [1] MIB module, SNMPv2-TC
[2] MIB module, SNMPv2-CONF [3] MIB Module, DOCSIS RFI Specification
SP-RFIv2.0-I06-040804 [4], INET-ADDRESS-MIB [8] MIB module, IF-MIB
[11] MIB module, SNMP-FRAMEWORK-MIB [12] MIB module, and DIFFSERV-
DSCP-TC [13] MIB module.
DOCS-IETF-QOS-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
Integer32,
Counter32,
Unsigned32,
Counter64,
mib-2
FROM SNMPv2-SMI
TEXTUAL-CONVENTION,
MacAddress,
RowStatus,
TruthValue,
TimeStamp,
StorageType
FROM SNMPv2-TC
OBJECT-GROUP,
MODULE-COMPLIANCE
FROM SNMPv2-CONF
ifIndex,
InterfaceIndex
FROM IF-MIB
InetAddressType,
InetAddress,
InetPortNumber
FROM INET-ADDRESS-MIB
DscpOrAny
FROM DIFFSERV-DSCP-TC
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB;
docsIetfQosMIB MODULE-IDENTITY
LAST-UPDATED "200601230000Z" -- January 23, 2006
ORGANIZATION "IETF IP over Cable Data Network (IPCDN)
Working Group"
CONTACT-INFO
"
Co-Author: Michael Patrick
Postal: Motorola BCS
111 Locke Drive
Marlborough, MA 01752-7214
U.S.A.
Phone: +1 508 786 7563
E-mail: michael.patrick@motorola.com
Co-Author: William Murwin
Postal: Motorola BCS
111 Locke Drive
Marlborough, MA 01752-7214
U.S.A.
Phone: +1 508 786 7594
E-mail: w.murwin@motorola.com
IETF IPCDN Working Group
General Discussion: ipcdn@ietf.org
Subscribe: http://www.ietf.org/mailman/listinfo/ipcdn
Archive: ftp://ftp.ietf.org/ietf-mail-archive/ipcdn
Co-chairs: Richard Woundy, Richard_Woundy@cable.comcast.com
Jean-Francois Mule, jfm@cablelabs.com"
DESCRIPTION
"This is the management information for
Quality Of Service (QOS) for DOCSIS 1.1 and 2.0.
Copyright (C) The Internet Society (2006). This version of
this MIB module is part of RFC 4323; see the RFC itself for
full legal notices."
REVISION "200601230000Z" -- January 23, 2006
DESCRIPTION
"Initial version, published as RFC 4323."
::= { mib-2 127 }
--
-- Placeholder for notifications/traps.
--
docsIetfQosNotifications OBJECT IDENTIFIER ::= { docsIetfQosMIB 0 }
docsIetfQosMIBObjects OBJECT IDENTIFIER ::= { docsIetfQosMIB 1 }
-- Textual Conventions
DocsIetfQosRfMacIfDirection ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION "Indicates a direction on an RF MAC interface.
The value downstream(1) is from Cable Modem
Termination System to Cable Modem.
The value upstream(2) is from Cable Modem to
Cable Modem Termination System."
SYNTAX INTEGER {
downstream(1),
upstream(2)
}
DocsIetfQosBitRate ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION "The rate of traffic in unit of bits per second.
Used to specify traffic rate for QOS."
SYNTAX Unsigned32
DocsIetfQosSchedulingType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION "The scheduling service provided by a CMTS for an
upstream Service Flow. If the parameter is omitted
from an upstream QOS Parameter Set, this object
takes the value of bestEffort (2). This parameter
must be reported as undefined (1) for downstream
QOS Parameter Sets."
SYNTAX INTEGER {
undefined (1),
bestEffort (2),
nonRealTimePollingService(3),
realTimePollingService(4),
unsolictedGrantServiceWithAD(5),
unsolictedGrantService(6)
}
-----------------------------------------------------------------------
--
-- Packet Classifier Table
--
docsIetfQosPktClassTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosPktClassEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes the packet classification
configured on the CM or CMTS.
The model is that a packet either received
as input from an interface or transmitted
for output on an interface may be compared
against an ordered list of rules pertaining to
the packet contents. Each rule is a row of this
table. A matching rule provides a Service Flow
ID to which the packet is classified.
All rules need to match for a packet to match
a classifier.
The objects in this row correspond to a set of
Classifier Encoding parameters in a DOCSIS
MAC management message. The
docsIetfQosPktClassBitMap indicates which
particular parameters were present in the
classifier as signaled in the DOCSIS message.
If the referenced parameter was not present
in the signaled DOCSIS 1.1 and 2.0 Classifier, the
corresponding object in this row reports a
value as specified in the DESCRIPTION section."
::= { docsIetfQosMIBObjects 1 }
docsIetfQosPktClassEntry OBJECT-TYPE
SYNTAX DocsIetfQosPktClassEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "An entry in this table provides a single packet
classifier rule. The index ifIndex is an ifType
of docsCableMaclayer(127)."
INDEX {
ifIndex,
docsIetfQosServiceFlowId,
docsIetfQosPktClassId
}
::= { docsIetfQosPktClassTable 1 }
DocsIetfQosPktClassEntry ::= SEQUENCE {
docsIetfQosPktClassId Unsigned32,
docsIetfQosPktClassDirection DocsIetfQosRfMacIfDirection,
docsIetfQosPktClassPriority Integer32,
docsIetfQosPktClassIpTosLow OCTET STRING,
docsIetfQosPktClassIpTosHigh OCTET STRING,
docsIetfQosPktClassIpTosMask OCTET STRING,
docsIetfQosPktClassIpProtocol Integer32,
docsIetfQosPktClassInetAddressType InetAddressType,
docsIetfQosPktClassInetSourceAddr InetAddress,
docsIetfQosPktClassInetSourceMask InetAddress,
docsIetfQosPktClassInetDestAddr InetAddress,
docsIetfQosPktClassInetDestMask InetAddress,
docsIetfQosPktClassSourcePortStart InetPortNumber,
docsIetfQosPktClassSourcePortEnd InetPortNumber,
docsIetfQosPktClassDestPortStart InetPortNumber,
docsIetfQosPktClassDestPortEnd InetPortNumber,
docsIetfQosPktClassDestMacAddr MacAddress,
docsIetfQosPktClassDestMacMask MacAddress,
docsIetfQosPktClassSourceMacAddr MacAddress,
docsIetfQosPktClassEnetProtocolType INTEGER,
docsIetfQosPktClassEnetProtocol Integer32,
docsIetfQosPktClassUserPriLow Integer32,
docsIetfQosPktClassUserPriHigh Integer32,
docsIetfQosPktClassVlanId Integer32,
docsIetfQosPktClassStateActive TruthValue,
docsIetfQosPktClassPkts Counter64,
docsIetfQosPktClassBitMap BITS
}
docsIetfQosPktClassId OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Index assigned to packet classifier entry by
the CMTS, which is unique per Service Flow."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.3.2"
::= { docsIetfQosPktClassEntry 1 }
docsIetfQosPktClassDirection OBJECT-TYPE
SYNTAX DocsIetfQosRfMacIfDirection
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Indicates the direction to which the classifier
is applied."
::= { docsIetfQosPktClassEntry 2 }
docsIetfQosPktClassPriority OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The value specifies the order of evaluation
of the classifiers.
The higher the value, the higher the priority.
The value of 0 is used as default in
provisioned Service Flows Classifiers.
The default value of 64 is used for dynamic
Service Flow Classifiers.
If the referenced parameter is not present
in a classifier, this object reports the default
value as defined above."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.3.5"
::= { docsIetfQosPktClassEntry 3 }
docsIetfQosPktClassIpTosLow OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The low value of a range of TOS byte values.
If the referenced parameter is not present
in a classifier, this object reports the value
of 0.
The IP TOS octet, as originally defined in RFC 791,
has been superseded by the 6-bit Differentiated
Services Field (DSField, RFC 3260) and the 2-bit
Explicit Congestion Notification Field (ECN field,
RFC 3168). This object is defined as an 8-bit
octet as per the DOCSIS Specification
for packet classification."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.1"
::= { docsIetfQosPktClassEntry 4 }
docsIetfQosPktClassIpTosHigh OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The 8-bit high value of a range of TOS byte
values.
If the referenced parameter is not present
in a classifier, this object reports the
value of 0.
The IP TOS octet as originally defined in RFC 791
has been superseded by the 6-bit Differentiated
Services Field (DSField, RFC 3260) and the 2-bit
Explicit Congestion Notification Field (ECN field,
RFC 3168). This object is defined as an 8-bit
octet as defined by the DOCSIS Specification
for packet classification."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.1"
::= { docsIetfQosPktClassEntry 5 }
docsIetfQosPktClassIpTosMask OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The mask value is bitwise ANDed with TOS byte
in an IP packet, and this value is used for
range checking of TosLow and TosHigh.
If the referenced parameter is not present
in a classifier, this object reports the value
of 0.
The IP TOS octet as originally defined in RFC 791
has been superseded by the 6-bit Differentiated
Services Field (DSField, RFC 3260) and the 2-bit
Explicit Congestion Notification Field (ECN field,
RFC 3168). This object is defined as an 8-bit
octet per the DOCSIS Specification for packet
classification."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.1"
::= { docsIetfQosPktClassEntry 6 }
docsIetfQosPktClassIpProtocol OBJECT-TYPE
SYNTAX Integer32 (0..258)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object indicates the value of the IP
Protocol field required for IP packets to match
this rule.
The value 256 matches traffic with any IP Protocol
value. The value 257 by convention matches both TCP
and UDP.
If the referenced parameter is not present
in a classifier, this object reports the value
of 258."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.2"
::= { docsIetfQosPktClassEntry 7 }
docsIetfQosPktClassInetAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The type of the Internet address for
docsIetfQosPktClassInetSourceAddr,
docsIetfQosPktClassInetSourceMask,
docsIetfQosPktClassInetDestAddr, and
docsIetfQosPktClassInetDestMask.
If the referenced parameter is not present
in a classifier, this object reports the value of
ipv4(1)."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.3"
::= { docsIetfQosPktClassEntry 8 }
docsIetfQosPktClassInetSourceAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies the value of the IP
Source Address required for packets to match
this rule.
An IP packet matches the rule when the packet
IP Source Address bitwise ANDed with the
docsIetfQosPktClassInetSourceMask value equals the
docsIetfQosPktClassInetSourceAddr value.
The address type of this object is specified by
docsIetfQosPktClassInetAddressType.
If the referenced parameter is not present
in a classifier, this object reports the value of
'00000000'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.3"
::= { docsIetfQosPktClassEntry 9 }
docsIetfQosPktClassInetSourceMask OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies which bits of a packet's
IP Source Address are compared to match
this rule.
An IP packet matches the rule when the packet
source address bitwise ANDed with the
docsIetfQosPktClassInetSourceMask value equals the
docsIetfQosIpPktClassInetSourceAddr value.
The address type of this object is specified by
docsIetfQosPktClassInetAddressType.
If the referenced parameter is not present
in a classifier, this object reports the value of
'FFFFFFFF'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.4"
::= { docsIetfQosPktClassEntry 10 }
docsIetfQosPktClassInetDestAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies the value of the IP
Destination Address required for packets to match
this rule.
An IP packet matches the rule when the packet
IP Destination Address bitwise ANDed with the
docsIetfQosPktClassInetDestMask value
equals the docsIetfQosPktClassInetDestAddr value.
The address type of this object is specified by
docsIetfQosPktClassInetAddressType.
If the referenced parameter is not present
in a classifier, this object reports the value of
'00000000'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.5"
::= { docsIetfQosPktClassEntry 11 }
docsIetfQosPktClassInetDestMask OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies which bits of a packet's
IP Destination Address are compared to
match this rule.
An IP packet matches the rule when the packet
destination address bitwise ANDed with the
docsIetfQosPktClassInetDestMask value equals the
docsIetfQosIpPktClassInetDestAddr value.
The address type of this object is specified by
docsIetfQosPktClassInetAddressType.
If the referenced parameter is not present
in a classifier, this object reports the value of
'FFFFFFFF'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.6"
::= { docsIetfQosPktClassEntry 12 }
docsIetfQosPktClassSourcePortStart OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies the low-end inclusive
range of TCP/UDP source port numbers to which
a packet is compared. This object is irrelevant
for non-TCP/UDP IP packets.
If the referenced parameter is not present
in a classifier, this object reports the value
of 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.7"
::= { docsIetfQosPktClassEntry 13 }
docsIetfQosPktClassSourcePortEnd OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies the high-end inclusive
range of TCP/UDP source port numbers to which
a packet is compared. This object is irrelevant
for non-TCP/UDP IP packets.
If the referenced parameter is not present
in a classifier, this object reports the value of
65535."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.8"
::= { docsIetfQosPktClassEntry 14 }
docsIetfQosPktClassDestPortStart OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies the low-end inclusive
range of TCP/UDP destination port numbers to
which a packet is compared.
If the referenced parameter is not present
in a classifier, this object reports the value
of 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.9"
::= { docsIetfQosPktClassEntry 15 }
docsIetfQosPktClassDestPortEnd OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object specifies the high-end inclusive
range of TCP/UDP destination port numbers to which
a packet is compared.
If the referenced parameter is not present
in a classifier, this object reports the value of
65535."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.5.10"
::= { docsIetfQosPktClassEntry 16 }
docsIetfQosPktClassDestMacAddr OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "An Ethernet packet matches an entry when its
destination MAC address bitwise ANDed with
docsIetfQosPktClassDestMacMask equals the value of
docsIetfQosPktClassDestMacAddr.
If the referenced parameter is not present
in a classifier, this object reports the value of
'000000000000'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.6.1"
::= { docsIetfQosPktClassEntry 17 }
docsIetfQosPktClassDestMacMask OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "An Ethernet packet matches an entry when its
destination MAC address bitwise ANDed with
docsIetfQosPktClassDestMacMask equals the value of
docsIetfQosPktClassDestMacAddr.
If the referenced parameter is not present
in a classifier, this object reports the value of
'000000000000'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.6.1"
::= { docsIetfQosPktClassEntry 18 }
docsIetfQosPktClassSourceMacAddr OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "An Ethernet packet matches this entry when its
source MAC address equals the value of
this object.
If the referenced parameter is not present
in a classifier, this object reports the value of
'FFFFFFFFFFFF'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.6.2"
::= { docsIetfQosPktClassEntry 19 }
docsIetfQosPktClassEnetProtocolType OBJECT-TYPE
SYNTAX INTEGER {
none(0),
ethertype(1),
dsap(2),
mac(3),
all(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object indicates the format of the layer 3
protocol ID in the Ethernet packet. A value of
none(0) means that the rule does not use the
layer 3 protocol type as a matching criteria.
A value of ethertype(1) means that the rule
applies only to frames that contain an
EtherType value. Ethertype values are contained
in packets using the Dec-Intel-Xerox (DIX)
encapsulation or the RFC1042 Sub-Network Access
Protocol (SNAP) encapsulation formats.
A value of dsap(2) means that the rule applies
only to frames using the IEEE802.3
encapsulation format with a Destination Service
Access Point (DSAP) other
than 0xAA (which is reserved for SNAP).
A value of mac(3) means that the rule applies
only to MAC management messages for MAC management
messages.
A value of all(4) means that the rule matches
all Ethernet packets.
If the Ethernet frame contains an 802.1P/Q Tag
header (i.e., EtherType 0x8100), this object
applies to the embedded EtherType field within
the 802.1P/Q header.
If the referenced parameter is not present in a
classifier, this object reports the value of 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.6.3"
::= { docsIetfQosPktClassEntry 20 }
docsIetfQosPktClassEnetProtocol OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "If docsIetfQosEthPktClassProtocolType is none(0),
this object is ignored when considering whether
a packet matches the current rule.
If dosQosPktClassEnetProtocolType is ethertype(1),
this object gives the 16-bit value of the
EtherType that the packet must match in order to
match the rule.
If docsIetfQosPktClassEnetProtocolType is dsap(2),
the lower 8 bits of this object's value must match
the DSAP byte of the packet in order to match the
rule.
If docsIetfQosPktClassEnetProtocolType is mac(3),
the lower 8 bits of this object's value represent a
lower bound (inclusive) of MAC management message
type codes matched, and the upper 8 bits represent
the upper bound (inclusive) of matched MAC message
type codes. Certain message type codes are
excluded from matching, as specified in the
reference.
If the Ethernet frame contains an 802.1P/Q Tag
header (i.e., EtherType 0x8100), this object applies
to the embedded EtherType field within the 802.1P/Q
header.
If the referenced parameter is not present in the
classifier, the value of this object is reported
as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.6.3"
::= { docsIetfQosPktClassEntry 21 }
docsIetfQosPktClassUserPriLow OBJECT-TYPE
SYNTAX Integer32 (0..7)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object applies only to Ethernet frames
using the 802.1P/Q tag header (indicated with
EtherType 0x8100). Such frames include a 16-bit
Tag that contains a 3-bit Priority field and
a 12-bit VLAN number.
Tagged Ethernet packets must have a 3-bit
Priority field within the range of
docsIetfQosPktClassPriLow to
docsIetfQosPktClassPriHigh in order to match this
rule.
If the referenced parameter is not present in the
classifier, the value of this object is reported
as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.7.1"
::= { docsIetfQosPktClassEntry 22 }
docsIetfQosPktClassUserPriHigh OBJECT-TYPE
SYNTAX Integer32 (0..7)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object applies only to Ethernet frames
using the 802.1P/Qtag header (indicated with
EtherType 0x8100). Such frames include a 16-bit
Tag that contains a 3-bit Priority field and
a 12-bit VLAN number.
Tagged Ethernet packets must have a 3-bit
Priority field within the range of
docsIetfQosPktClassPriLow to
docsIetfQosPktClassPriHigh in order to match this
rule.
If the referenced parameter is not present in the
classifier, the value of this object is reported
as 7."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.7.1"
::= { docsIetfQosPktClassEntry 23 }
docsIetfQosPktClassVlanId OBJECT-TYPE
SYNTAX Integer32 (0 | 1..4094)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object applies only to Ethernet frames
using the 802.1P/Q tag header.
Tagged packets must have a VLAN Identifier that
matches the value in order to match the rule.
If the referenced parameter is not present in the
classifier, the value of this object is reported
as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.7.2"
::= { docsIetfQosPktClassEntry 24 }
docsIetfQosPktClassStateActive OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object indicates whether or not the classifier
is enabled to classify packets to a Service Flow.
If the referenced parameter is not present in the
classifier, the value of this object is reported
as true(1)."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.3.6"
::= { docsIetfQosPktClassEntry 25 }
docsIetfQosPktClassPkts OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object counts the number of packets that have
been classified using this entry. This
includes all packets delivered to a Service Flow
maximum rate policing function, whether or not that
function drops the packets.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosPktClassEntry 26 }
docsIetfQosPktClassBitMap OBJECT-TYPE
SYNTAX BITS { -- Reference SP-RFIv2.0-I06-040804
rulePriority(0), -- Appendix C.2.1.3.4
activationState(1), -- Appendix C.2.1.3.6
ipTos(2), -- Appendix C.2.1.5.1
ipProtocol(3), -- Appendix C.2.1.5.2
ipSourceAddr(4), -- Appendix C.2.1.5.3
ipSourceMask(5), -- Appendix C.2.1.5.4
ipDestAddr(6), -- Appendix C.2.1.5.5
ipDestMask(7), -- Appendix C.2.1.5.6
sourcePortStart(8), -- Appendix C.2.1.5.7
sourcePortEnd(9), -- Appendix C.2.1.5.8
destPortStart(10), -- Appendix C.2.1.5.9
destPortEnd(11), -- Appendix C.2.1.5.10
destMac(12), -- Appendix C.2.1.6.1
sourceMac(13), -- Appendix C.2.1.6.2
ethertype(14), -- Appendix C.2.1.6.3
userPri(15), -- Appendix C.2.1.7.1
vlanId(16) -- Appendix C.2.1.7.2
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates which parameter encodings
were actually present in the DOCSIS packet
classifier encoding signaled in the DOCSIS message
that created or modified the classifier. Note that
Dynamic Service Change messages have replace
semantics, so that all non-default parameters must
be present whether the classifier is being created
or changed.
A bit of this object is set to 1 if the parameter
indicated by the comment was present in the
classifier encoding, and to 0 otherwise.
Note that BITS are encoded most significant bit
first, so that if, for example, bits 6 and 7 are
set, this object is encoded as the octet string
'030000'H."
::= { docsIetfQosPktClassEntry 27 }
--
-- QOS Parameter Set Table
--
docsIetfQosParamSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosParamSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes the set of DOCSIS 1.1 and 2.0
QOS parameters defined in a managed device.
The ifIndex index specifies a DOCSIS MAC Domain.
The docsIetfQosServiceFlowId index specifies a
particular Service Flow.
The docsIetfQosParamSetType index indicates whether
the active, admitted, or provisioned QOS Parameter
Set is being described by the row.
Only the QOS Parameter Sets of DOCSIS 1.1 and 2.0
Service Flows are represented in this table.
DOCSIS 1.0 QOS service profiles are not
represented in this table.
Each row corresponds to a DOCSIS QOS Parameter Set
as signaled via DOCSIS MAC management messages.
Each object in the row corresponds to one or
part of one DOCSIS 1.1 Service Flow Encoding.
The docsIetfQosParamSetBitMap object in the row
indicates which particular parameters were signaled
in the original registration or dynamic service
request message that created the QOS Parameter Set.
In many cases, even if a QOS Parameter Set parameter
was not signaled, the DOCSIS specification calls
for a default value to be used. That default value
is reported as the value of the corresponding object
in this row.
Many objects are not applicable, depending on
the Service Flow direction or upstream scheduling
type. The object value reported in this case
is specified in the DESCRIPTION clause."
::= { docsIetfQosMIBObjects 2 }
docsIetfQosParamSetEntry OBJECT-TYPE
SYNTAX DocsIetfQosParamSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "A unique set of QOS parameters."
INDEX {
ifIndex, docsIetfQosServiceFlowId, docsIetfQosParamSetType
}
::= { docsIetfQosParamSetTable 1 }
DocsIetfQosParamSetEntry ::= SEQUENCE {
docsIetfQosParamSetServiceClassName SnmpAdminString,
docsIetfQosParamSetPriority Integer32,
docsIetfQosParamSetMaxTrafficRate DocsIetfQosBitRate,
docsIetfQosParamSetMaxTrafficBurst Unsigned32,
docsIetfQosParamSetMinReservedRate DocsIetfQosBitRate,
docsIetfQosParamSetMinReservedPkt Integer32,
docsIetfQosParamSetActiveTimeout Integer32,
docsIetfQosParamSetAdmittedTimeout Integer32,
docsIetfQosParamSetMaxConcatBurst Integer32,
docsIetfQosParamSetSchedulingType DocsIetfQosSchedulingType,
docsIetfQosParamSetNomPollInterval Unsigned32,
docsIetfQosParamSetTolPollJitter Unsigned32,
docsIetfQosParamSetUnsolicitGrantSize Integer32,
docsIetfQosParamSetNomGrantInterval Unsigned32,
docsIetfQosParamSetTolGrantJitter Unsigned32,
docsIetfQosParamSetGrantsPerInterval Integer32,
docsIetfQosParamSetTosAndMask OCTET STRING,
docsIetfQosParamSetTosOrMask OCTET STRING,
docsIetfQosParamSetMaxLatency Unsigned32,
docsIetfQosParamSetType INTEGER,
docsIetfQosParamSetRequestPolicyOct OCTET STRING,
docsIetfQosParamSetBitMap BITS
}
docsIetfQosParamSetServiceClassName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Refers to the Service Class Name from which the
parameter set values were derived.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the default
value of this object is a zero-length string."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.3.4"
::= { docsIetfQosParamSetEntry 1 }
docsIetfQosParamSetPriority OBJECT-TYPE
SYNTAX Integer32 (0..7)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The relative priority of a Service Flow.
Higher numbers indicate higher priority.
This priority should only be used to differentiate
Service Flow from identical parameter sets.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the default
value of this object is 0. If the parameter is
not applicable, the reported value is 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.5.1"
::= { docsIetfQosParamSetEntry 2 }
docsIetfQosParamSetMaxTrafficRate OBJECT-TYPE
SYNTAX DocsIetfQosBitRate
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Maximum sustained traffic rate allowed for this
Service Flow in bits/sec. Must count all MAC frame
data PDU from the bytes following the MAC header
HCS to the end of the CRC. The number of bytes
forwarded is limited during any time interval.
The value 0 means no maximum traffic rate is
enforced. This object applies to both upstream and
downstream Service Flows.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the default
value of this object is 0. If the parameter is
not applicable, it is reported as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.5.2"
::= { docsIetfQosParamSetEntry 3 }
docsIetfQosParamSetMaxTrafficBurst OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the token bucket size in bytes
for this parameter set. The value is calculated
from the byte following the MAC header HCS to
the end of the CRC. This object is applied in
conjunction with docsIetfQosParamSetMaxTrafficRate
to calculate maximum sustained traffic rate.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the default
value of this object for scheduling types
bestEffort (2), nonRealTimePollingService(3),
and realTimePollingService(4) is 3044.
If this parameter is not applicable, it is reported
as 0.
"
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.5.3"
::= { docsIetfQosParamSetEntry 4 }
docsIetfQosParamSetMinReservedRate OBJECT-TYPE
SYNTAX DocsIetfQosBitRate
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the guaranteed minimum rate in
bits/sec for this parameter set. The value is
calculated from the byte following the MAC
header HCS to the end of the CRC. The default
value of 0 means that no bandwidth is reserved.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the default
value of this object is 0. If the parameter
is not applicable, it is reported as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.5.4"
::= { docsIetfQosParamSetEntry 5 }
docsIetfQosParamSetMinReservedPkt OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies an assumed minimum packet size in
bytes for which the
docsIetfQosParamSetMinReservedRate will be
provided. The value is calculated from the byte
following the MAC header HCS to the end of the
CRC.
If the referenced parameter is omitted from a
DOCSIS QOS parameter set, the default value is
CMTS implementation dependent. In this case, the
CMTS reports the default value it is using, and the
CM reports a value of 0. If the referenced
parameter is not applicable to the direction or
scheduling type of the Service Flow, both CMTS and
CM report this object's value as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.5.5"
::= { docsIetfQosParamSetEntry 6 }
docsIetfQosParamSetActiveTimeout OBJECT-TYPE
SYNTAX Integer32 (0..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the maximum duration in seconds that
resources remain unused on an active service
flow before CMTS signals that both active and
admitted parameters set are null. The default
value of 0 signifies an infinite amount of time.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the default
value of this object is 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.5.6"
::= { docsIetfQosParamSetEntry 7 }
docsIetfQosParamSetAdmittedTimeout OBJECT-TYPE
SYNTAX Integer32 (0..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the maximum duration in seconds that
resources remain in admitted state before
resources must be released.
The value of 0 signifies an infinite amount
of time.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the
default value of this object is 200.
"
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.5.7"
DEFVAL { 200 }
::= { docsIetfQosParamSetEntry 8 }
docsIetfQosParamSetMaxConcatBurst OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the maximum concatenated burst in
bytes that an upstream Service Flow is allowed.
The value is calculated from the FC byte of the
Concatenation MAC Header to the last CRC byte in
of the last concatenated MAC frame, inclusive.
The value of 0 specifies no maximum burst.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set, the default
value of this object for scheduling types
bestEffort(2), nonRealTimePollingService(3), and
realTimePollingService(4) is 1522. If the parameter
is not applicable, this object's value is reported
as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.1"
::= { docsIetfQosParamSetEntry 9 }
docsIetfQosParamSetSchedulingType OBJECT-TYPE
SYNTAX DocsIetfQosSchedulingType
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the upstream scheduling service used for
upstream Service Flow.
If the referenced parameter is not present in the
corresponding DOCSIS QOS Parameter Set of an
upstream Service Flow, the default value of this
object is bestEffort(2). For QOS parameter sets of
downstream Service Flows, this object's value is
reported as undefined(1)."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.2"
::= { docsIetfQosParamSetEntry 10 }
docsIetfQosParamSetNomPollInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the nominal interval in microseconds
between successive unicast request
opportunities on an upstream Service Flow.
This object applies only to upstream Service Flows
with DocsIetfQosSchedulingType of value
nonRealTimePollingService(3),
realTimePollingService(4), and
unsolictedGrantServiceWithAD(5). The parameter is
mandatory for realTimePollingService(4). If the
parameter is omitted with
nonRealTimePollingService(3), the CMTS uses an
implementation-dependent value. If the parameter
is omitted with unsolictedGrantServiceWithAD(5),
the CMTS uses as a default value the value of the
Nominal Grant Interval parameter. In all cases,
the CMTS reports the value it is using when the
parameter is applicable. The CM reports the
signaled parameter value if it was signaled,
and 0 otherwise.
If the referenced parameter is not applicable to
the direction or scheduling type of the
corresponding DOCSIS QOS Parameter Set, both
CMTS and CM report this object's value as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.4"
::= { docsIetfQosParamSetEntry 11 }
docsIetfQosParamSetTolPollJitter OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the maximum amount of time in
microseconds that the unicast request interval
may be delayed from the nominal periodic
schedule on an upstream Service Flow.
This parameter is applicable only to upstream
Service Flows with a DocsIetfQosSchedulingType of
realTimePollingService(4) or
unsolictedGrantServiceWithAD(5).
If the referenced parameter is applicable but not
present in the corresponding DOCSIS QOS Parameter
Set, the CMTS uses an implementation-dependent
value and reports the value it is using.
The CM reports a value of 0 in this case.
If the parameter is not applicable to the
direction or upstream scheduling type of the
Service Flow, both CMTS and CM report this
object's value as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.5"
::= { docsIetfQosParamSetEntry 12 }
docsIetfQosParamSetUnsolicitGrantSize OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the unsolicited grant size in bytes.
The grant size includes the entire MAC frame
data PDU from the Frame Control byte to the end
of the MAC frame.
The referenced parameter is applicable only
for upstream flows with a DocsIetfQosSchedulingType
of unsolicitedGrantServicewithAD(5) or
unsolicitedGrantService(6), and it is mandatory
when applicable. Both CMTS and CM report
the signaled value of the parameter in this
case.
If the referenced parameter is not applicable to
the direction or scheduling type of the
corresponding DOCSIS QOS Parameter Set, both
CMTS and CM report this object's value as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.6"
::= { docsIetfQosParamSetEntry 13 }
docsIetfQosParamSetNomGrantInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the nominal interval in microseconds
between successive data grant opportunities
on an upstream Service Flow.
The referenced parameter is applicable only
for upstream flows with a DocsIetfQosSchedulingType
of unsolicitedGrantServicewithAD(5) or
unsolicitedGrantService(6), and it is mandatory
when applicable. Both CMTS and CM report the
signaled value of the parameter in this case.
If the referenced parameter is not applicable to
the direction or scheduling type of the
corresponding DOCSIS QOS Parameter Set, both
CMTS and CM report this object's value as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.7"
::= { docsIetfQosParamSetEntry 14 }
docsIetfQosParamSetTolGrantJitter OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the maximum amount of time in
microseconds that the transmission opportunities
may be delayed from the nominal periodic schedule.
The referenced parameter is applicable only
for upstream flows with a DocsIetfQosSchedulingType
of unsolicitedGrantServicewithAD(5) or
unsolicitedGrantService(6), and it is mandatory
when applicable. Both CMTS and CM report the
signaled value of the parameter in this case.
If the referenced parameter is not applicable to
the direction or scheduling type of the
corresponding DOCSIS QOS Parameter Set, both
CMTS and CM report this object's value as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.8"
::= { docsIetfQosParamSetEntry 15 }
docsIetfQosParamSetGrantsPerInterval OBJECT-TYPE
SYNTAX Integer32 (0..127)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the number of data grants per Nominal
Grant Interval
(docsIetfQosParamSetNomGrantInterval).
The referenced parameter is applicable only
for upstream flows with a DocsIetfQosSchedulingType
of unsolicitedGrantServicewithAD(5) or
unsolicitedGrantService(6), and it is mandatory
when applicable. Both CMTS and CM report the
signaled value of the parameter in this case.
If the referenced parameter is not applicable to
the direction or scheduling type of the
corresponding DOCSIS QOS Parameter Set, both
CMTS and CM report this object's value as 0."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.9"
::= { docsIetfQosParamSetEntry 16 }
docsIetfQosParamSetTosAndMask OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the AND mask for the IP TOS byte for
overwriting IP packet's TOS value. The IP packet
TOS byte is bitwise ANDed with
docsIetfQosParamSetTosAndMask, and the result is
bitwise ORed with docsIetfQosParamSetTosORMask and
the result is written to the IP packet TOS byte.
A value of 'FF'H for docsIetfQosParamSetTosAndMask
and a value of '00'H for
docsIetfQosParamSetTosOrMask means that the IP
Packet TOS byte is not overwritten.
This combination is reported if the referenced
parameter is not present in a QOS Parameter Set.
The IP TOS octet as originally defined in RFC 791
has been superseded by the 6-bit Differentiated
Services Field (DSField, RFC 3260) and the 2-bit
Explicit Congestion Notification Field (ECN field,
RFC 3168). Network operators SHOULD avoid
specifying values of docsIetfQosParamSetTosAndMask
and docsIetfQosParamSetTosORMask that would result
in the modification of the ECN bits.
In particular, operators should not use values of
docsIetfQosParamSetTosAndMask that have either of
the least-significant two bits set to 0. Similarly,
operators should not use values of
docsIetfQosParamSetTosORMask that have either of
the least-significant two bits set to 1.
Even though this object is only enforced by the
Cable Modem Termination System (CMTS),
Cable Modems MUST report the value as signaled in
the referenced parameter."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.10;
RFC 3168, The Addition of Explicit Congestion
Notification (ECN) to IP;
RFC 3260, New Terminology and Clarifications for
Diffserv."
::= { docsIetfQosParamSetEntry 17 }
docsIetfQosParamSetTosOrMask OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the OR mask for the IP TOS byte.
See the description of docsIetfQosParamSetTosAndMask
for further details.
The IP TOS octet as originally defined in RFC 791
has been superseded by the 6-bit Differentiated
Services Field (DSField, RFC 3260) and the 2-bit
Explicit Congestion Notification Field (ECN field,
RFC 3168). Network operators SHOULD avoid
specifying values of docsIetfQosParamSetTosAndMask
and docsIetfQosParamSetTosORMask that would result
in the modification of the ECN bits."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.10;
RFC 3168, The Addition of Explicit Congestion
Notification (ECN) to IP;
RFC 3260, New Terminology and Clarifications for
Diffserv."
::= { docsIetfQosParamSetEntry 18 }
docsIetfQosParamSetMaxLatency OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies the maximum latency between the
reception of a packet by the CMTS on its NSI
and the forwarding of the packet to the RF
interface. A value of 0 signifies no maximum
latency is enforced. This object only applies to
downstream Service Flows.
If the referenced parameter is not present in the
corresponding downstream DOCSIS QOS Parameter Set,
the default value is 0. This parameter is
not applicable to upstream DOCSIS QOS Parameter
Sets, and its value is reported as 0 in this case."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.7.1"
::= { docsIetfQosParamSetEntry 19 }
docsIetfQosParamSetType OBJECT-TYPE
SYNTAX INTEGER {
active (1),
admitted (2),
provisioned (3)
}
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Defines the type of the QOS parameter set defined
by this row. active(1) indicates the Active QOS
parameter set, describing the service currently
being provided by the DOCSIS MAC domain to the
Service Flow. admitted(2) indicates the Admitted
QOS Parameter Set, describing services reserved by
the DOCSIS MAC domain for use by the service
flow. provisioned (3) describes the QOS Parameter
Set defined in the DOCSIS CM Configuration file for
the Service Flow."
REFERENCE "SP-RFIv2.0-I06-040804, 8.1.5"
::= { docsIetfQosParamSetEntry 20 }
docsIetfQosParamSetRequestPolicyOct OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(4))
-- A 32-bit mask represented most significant byte
-- first. The 32-bit integer represented in this
-- manner equals the binary value of the referenced
-- integer parameter of the DOCSIS RFI
-- specification.
-- The BITS syntax is not used in order to avoid
-- the confusion caused by different bit-numbering
-- conventions.
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Specifies which transmit interval opportunities
the CM omits for upstream transmission requests and
packet transmissions. This object takes its
default value for downstream Service Flows.
Unless otherwise indicated, a bit value of 1 means
that a CM must not use that opportunity for
upstream transmission.
If bit 0 is the least significant bit of the
least significant (4th) octet, and if bit number
is increased with significance, the bit definitions
are defined as follows:
broadcastReqOpp(0):
all CMs broadcast request opportunities
priorityReqMulticastReq(1):
priority request multicast request
opportunities
reqDataForReq(2):
request/data opportunities for requests
reqDataForData(3):
request/data opportunities for data
piggybackReqWithData(4):
piggyback requests with data
concatenateData(5):
concatenate data
fragmentData(6):
fragment data
suppresspayloadheaders(7):
suppress payload headers
dropPktsExceedUGSize(8):
A value of 1 means that the Service Flow must
drop packets that do not fit in the Unsolicited
Grant size.
If the referenced parameter is not present in
a QOS Parameter Set, the value of this object is
reported as '00000000'H."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.3"
::= { docsIetfQosParamSetEntry 21 }
docsIetfQosParamSetBitMap OBJECT-TYPE
-- Each bit corresponds to a parameter
-- from SP-RFI-v1.1-I10-037030,
-- Appendix C in the indicated
SYNTAX BITS { -- section number.
trafficPriority(0), -- C.2.2.5.1
maxTrafficRate(1), -- C.2.2.5.2
maxTrafficBurst(2), -- C.2.2.5.3
minReservedRate(3), -- C.2.2.5.4
minReservedPkt(4), -- C.2.2.5.5
activeTimeout(5), -- C.2.2.5.6
admittedTimeout(6), -- C.2.2.5.7
maxConcatBurst(7), -- C.2.2.6.1
schedulingType(8), -- C.2.2.6.2
requestPolicy(9), -- C.2.2.6.3
nomPollInterval(10), -- C.2.2.6.4
tolPollJitter(11), -- C.2.2.6.5
unsolicitGrantSize(12), -- C.2.2.6.6
nomGrantInterval(13), -- C.2.2.6.7
tolGrantJitter(14), -- C.2.2.6.8
grantsPerInterval(15), -- C.2.2.6.9
tosOverwrite(16), -- C.2.2.6.10
maxLatency(17) -- C.2.2.7.1
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object indicates the set of QOS Parameter
Set parameters actually signaled in the
DOCSIS registration or dynamic service request
message that created or modified the QOS Parameter
Set. A bit is set to 1 when the parameter described
by the indicated reference section is present
in the original request.
Note that when Service Class names are expanded,
the registration or dynamic response message may
contain parameters as expanded by the CMTS based
on a stored service class. These expanded
parameters are not indicated by a 1 bit in this
object.
Note that even though some QOS Parameter Set
parameters may not be signaled in a message
(so that the paramater's bit in this object is 0),
the DOCSIS specification requires that default
values be used. These default values are reported
as the corresponding object's value in the row.
Note that BITS objects are encoded most
significant bit first. For example, if bits
1 and 16 are set, the value of this object
is the octet string '400080'H."
::= { docsIetfQosParamSetEntry 22 }
--
-- Service Flow Table
--
docsIetfQosServiceFlowTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosServiceFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes the set of DOCSIS-QOS
Service Flows in a managed device."
::= { docsIetfQosMIBObjects 3 }
docsIetfQosServiceFlowEntry OBJECT-TYPE
SYNTAX DocsIetfQosServiceFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Describes a Service Flow.
An entry in the table exists for each
Service Flow ID. The ifIndex is an
ifType of docsCableMaclayer(127)."
INDEX {
ifIndex,
docsIetfQosServiceFlowId
}
::= { docsIetfQosServiceFlowTable 1 }
DocsIetfQosServiceFlowEntry ::= SEQUENCE {
docsIetfQosServiceFlowId Unsigned32,
docsIetfQosServiceFlowSID Unsigned32,
docsIetfQosServiceFlowDirection DocsIetfQosRfMacIfDirection,
docsIetfQosServiceFlowPrimary TruthValue
}
docsIetfQosServiceFlowId OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "An index assigned to a Service Flow by CMTS."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.3.2"
::= { docsIetfQosServiceFlowEntry 1 }
docsIetfQosServiceFlowSID OBJECT-TYPE
SYNTAX Unsigned32 (0..16383)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Service Identifier (SID) assigned to an
admitted or active Service Flow. This object
reports a value of 0 if a Service ID is not
associated with the Service Flow. Only active
or admitted upstream Service Flows will have a
Service ID (SID)."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.3.3"
::= { docsIetfQosServiceFlowEntry 2 }
docsIetfQosServiceFlowDirection OBJECT-TYPE
SYNTAX DocsIetfQosRfMacIfDirection
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The direction of the Service Flow."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.1/2"
::= { docsIetfQosServiceFlowEntry 3 }
docsIetfQosServiceFlowPrimary OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Object reflects whether Service Flow is the primary
or a secondary Service Flow.
A primary Service Flow is the default Service Flow
for otherwise unclassified traffic and all MAC
messages."
REFERENCE "SP-RFIv2.0-I06-040804, Section 8.1 "
::= { docsIetfQosServiceFlowEntry 4 }
--
-- Service Flow Stats Table
--
docsIetfQosServiceFlowStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosServiceFlowStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes statistics associated with the
Service Flows in a managed device."
::= { docsIetfQosMIBObjects 4 }
docsIetfQosServiceFlowStatsEntry OBJECT-TYPE
SYNTAX DocsIetfQosServiceFlowStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Describes a set of Service Flow statistics.
An entry in the table exists for each
Service Flow ID. The ifIndex is an
ifType of docsCableMaclayer(127)."
INDEX {
ifIndex,
docsIetfQosServiceFlowId
}
::= { docsIetfQosServiceFlowStatsTable 1 }
DocsIetfQosServiceFlowStatsEntry ::= SEQUENCE {
docsIetfQosServiceFlowPkts Counter64,
docsIetfQosServiceFlowOctets Counter64,
docsIetfQosServiceFlowTimeCreated TimeStamp,
docsIetfQosServiceFlowTimeActive Counter32,
docsIetfQosServiceFlowPHSUnknowns Counter32,
docsIetfQosServiceFlowPolicedDropPkts Counter32,
docsIetfQosServiceFlowPolicedDelayPkts Counter32
}
docsIetfQosServiceFlowPkts OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION "For outgoing Service Flows, this object counts the
number of Packet Data PDUs forwarded to this
Service Flow. For incoming upstream CMTS service
flows, this object counts the number of Packet
Data PDUs actually received on the Service Flow
identified by the SID for which the packet was
scheduled. CMs not classifying downstream packets
may report this object's value as 0 for downstream
Service Flows. This object does not count
MAC-specific management messages.
Particularly for UGS flows, packets sent on the
primary Service Flow in violation of the UGS grant
size should be counted only by the instance of this
object that is associated with the primary service
flow.
Unclassified upstream user data packets (i.e., non-
MAC-management) forwarded to the primary upstream
Service Flow should be counted by the instance of
this object that is associated with the primary
service flow.
This object does include packets counted by
docsIetfQosServiceFlowPolicedDelayPkts, but does not
include packets counted by
docsIetfQosServiceFlowPolicedDropPkts
and docsIetfQosServiceFlowPHSUnknowns.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosServiceFlowStatsEntry 1 }
docsIetfQosServiceFlowOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of octets from the byte after the MAC
header HCS to the end of the CRC for all packets
counted in the docsIetfQosServiceFlowPkts object for
this row. Note that this counts the octets after
payload header suppression and before payload
header expansion have been applied.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosServiceFlowStatsEntry 2 }
docsIetfQosServiceFlowTimeCreated OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The value of sysUpTime when the service flow
was created."
::= { docsIetfQosServiceFlowStatsEntry 3 }
docsIetfQosServiceFlowTimeActive OBJECT-TYPE
SYNTAX Counter32
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of seconds that the service flow
has been active.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosServiceFlowStatsEntry 4 }
docsIetfQosServiceFlowPHSUnknowns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "For incoming upstream CMTS service flows, this
object counts the number of packets received
with an unknown payload header suppression index.
The service flow is identified by the SID for which
the packet was scheduled.
On a CM, only this object's instance for the primary
downstream service flow counts packets received with
an unknown payload header suppression index. All
other downstream service flows on CM report this
objects value as 0.
All outgoing service flows report this object's
value as 0.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosServiceFlowStatsEntry 5 }
docsIetfQosServiceFlowPolicedDropPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "For outgoing service flows, this object counts the
number of Packet Data PDUs classified to this
service flow dropped due to:
(1) implementation-dependent excessive delay
while enforcing the Maximum Sustained
Traffic Rate; or
(2) UGS packets dropped due to exceeding the
Unsolicited Grant Size with a
Request/Transmission policy that requires
such packets to be dropped.
Classified packets dropped due to other reasons
must be counted in ifOutDiscards for the interface
of this service flow. This object reports 0 for
incoming service flows.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosServiceFlowStatsEntry 6 }
docsIetfQosServiceFlowPolicedDelayPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "This object counts only outgoing packets delayed in
order to maintain the Maximum Sustained Traffic
Rate. This object will always report a value of 0
for UGS flows because the Maximum Sustained Traffic
Rate does not apply. This object is 0 for incoming
service flows.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosServiceFlowStatsEntry 7 }
--
-- Upstream Service Flow Stats Table (CMTS ONLY)
--
docsIetfQosUpstreamStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosUpstreamStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes statistics associated with
upstream service flows. All counted frames must
be received without a Frame Check Sequence (FCS)
error."
::= { docsIetfQosMIBObjects 5 }
docsIetfQosUpstreamStatsEntry OBJECT-TYPE
SYNTAX DocsIetfQosUpstreamStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Describes a set of upstream service flow
statistics. An entry in the table exists for each
upstream Service Flow in a managed device.
The ifIndex is an ifType of
docsCableMaclayer(127)."
INDEX {
ifIndex,
docsIetfQosSID
}
::= { docsIetfQosUpstreamStatsTable 1 }
DocsIetfQosUpstreamStatsEntry ::= SEQUENCE {
docsIetfQosSID Unsigned32,
docsIetfQosUpstreamFragments Counter32,
docsIetfQosUpstreamFragDiscards Counter32,
docsIetfQosUpstreamConcatBursts Counter32
}
docsIetfQosSID OBJECT-TYPE
SYNTAX Unsigned32 (1..16383)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Identifies a service ID for an admitted or active
upstream service flow."
::= { docsIetfQosUpstreamStatsEntry 1 }
docsIetfQosUpstreamFragments OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of fragmentation headers received on an
upstream service flow, regardless of whether
the fragment was correctly reassembled into a
valid packet.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosUpstreamStatsEntry 2 }
docsIetfQosUpstreamFragDiscards OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of upstream fragments discarded and not
assembled into a valid upstream packet.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosUpstreamStatsEntry 3 }
docsIetfQosUpstreamConcatBursts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of concatenation headers received on an
upstream service flow.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosUpstreamStatsEntry 4 }
--
-- Dynamic Service Stats Table
--
docsIetfQosDynamicServiceStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosDynamicServiceStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes statistics associated with the
Dynamic Service Flows in a managed device."
::= { docsIetfQosMIBObjects 6 }
docsIetfQosDynamicServiceStatsEntry OBJECT-TYPE
SYNTAX DocsIetfQosDynamicServiceStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Describes a set of dynamic service flow statistics.
Two entries exist for each DOCSIS MAC layer
interface for the upstream and downstream
direction. On the CMTS, the downstream direction
row indicates messages transmitted or transactions
originated by the CMTS. The upstream direction row
indicates messages received or transaction
originated by the CM. On the CM, the downstream
direction row indicates messages received or
transactions originated by the CMTS. The upstream
direction row indicates messages transmitted by
the CM or transactions originated by the CM.
The ifIndex is an ifType of
docsCableMaclayer(127)."
INDEX {
ifIndex,
docsIetfQosIfDirection
}
::= { docsIetfQosDynamicServiceStatsTable 1 }
DocsIetfQosDynamicServiceStatsEntry ::= SEQUENCE {
docsIetfQosIfDirection DocsIetfQosRfMacIfDirection,
docsIetfQosDSAReqs Counter32,
docsIetfQosDSARsps Counter32,
docsIetfQosDSAAcks Counter32,
docsIetfQosDSCReqs Counter32,
docsIetfQosDSCRsps Counter32,
docsIetfQosDSCAcks Counter32,
docsIetfQosDSDReqs Counter32,
docsIetfQosDSDRsps Counter32,
docsIetfQosDynamicAdds Counter32,
docsIetfQosDynamicAddFails Counter32,
docsIetfQosDynamicChanges Counter32,
docsIetfQosDynamicChangeFails Counter32,
docsIetfQosDynamicDeletes Counter32,
docsIetfQosDynamicDeleteFails Counter32,
docsIetfQosDCCReqs Counter32,
docsIetfQosDCCRsps Counter32,
docsIetfQosDCCAcks Counter32,
docsIetfQosDCCs Counter32,
docsIetfQosDCCFails Counter32
}
docsIetfQosIfDirection OBJECT-TYPE
SYNTAX DocsIetfQosRfMacIfDirection
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "The direction of interface."
::= { docsIetfQosDynamicServiceStatsEntry 1 }
docsIetfQosDSAReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Addition Requests,
including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 2 }
docsIetfQosDSARsps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Addition Responses,
including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 3 }
docsIetfQosDSAAcks OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Addition
Acknowledgements, including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 4 }
docsIetfQosDSCReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Change Requests,
including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 5 }
docsIetfQosDSCRsps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Change Responses,
including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 6 }
docsIetfQosDSCAcks OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Change
Acknowledgements, including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 7 }
docsIetfQosDSDReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Delete Requests,
including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 8 }
docsIetfQosDSDRsps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Service Delete Responses,
including retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 9 }
docsIetfQosDynamicAdds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of successful Dynamic Service Addition
transactions.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 10 }
docsIetfQosDynamicAddFails OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of failed Dynamic Service Addition
transactions.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 11 }
docsIetfQosDynamicChanges OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of successful Dynamic Service Change
transactions.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 12 }
docsIetfQosDynamicChangeFails OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of failed Dynamic Service Change
transactions.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 13 }
docsIetfQosDynamicDeletes OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of successful Dynamic Service Delete
transactions.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 14 }
docsIetfQosDynamicDeleteFails OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of failed Dynamic Service Delete
transactions.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 15 }
docsIetfQosDCCReqs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Channel Change Request
messages traversing an interface. This count
is nonzero only on downstream direction rows.
This count should include the number of retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex
that indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 16 }
docsIetfQosDCCRsps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Channel Change Response
messages traversing an interface. This count is
nonzero only on upstream direction rows. This count
should include the number of retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 17 }
docsIetfQosDCCAcks OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of Dynamic Channel Change Acknowledgement
messages traversing an interface. This count
is nonzero only on downstream direction rows.
This count should include the number of retries.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 18 }
docsIetfQosDCCs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of successful Dynamic Channel Change
transactions. This count is nonzero only on
downstream direction rows.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 19 }
docsIetfQosDCCFails OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of failed Dynamic Channel Change
transactions. This count is nonzero only on
downstream direction rows.
This counter's last discontinuity is the
ifCounterDiscontinuityTime for the same ifIndex that
indexes this object."
::= { docsIetfQosDynamicServiceStatsEntry 20 }
--
-- Service Flow Log Table (CMTS ONLY)
--
docsIetfQosServiceFlowLogTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosServiceFlowLogEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table contains a log of the disconnected
Service Flows in a managed device."
::= { docsIetfQosMIBObjects 7 }
docsIetfQosServiceFlowLogEntry OBJECT-TYPE
SYNTAX DocsIetfQosServiceFlowLogEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "The information regarding a single disconnected
service flow."
INDEX {
docsIetfQosServiceFlowLogIndex
}
::= { docsIetfQosServiceFlowLogTable 1 }
DocsIetfQosServiceFlowLogEntry ::= SEQUENCE {
docsIetfQosServiceFlowLogIndex Unsigned32,
docsIetfQosServiceFlowLogIfIndex InterfaceIndex,
docsIetfQosServiceFlowLogSFID Unsigned32,
docsIetfQosServiceFlowLogCmMac MacAddress,
docsIetfQosServiceFlowLogPkts Counter64,
docsIetfQosServiceFlowLogOctets Counter64,
docsIetfQosServiceFlowLogTimeDeleted TimeStamp,
docsIetfQosServiceFlowLogTimeCreated TimeStamp,
docsIetfQosServiceFlowLogTimeActive Counter32,
docsIetfQosServiceFlowLogDirection DocsIetfQosRfMacIfDirection,
docsIetfQosServiceFlowLogPrimary TruthValue,
docsIetfQosServiceFlowLogServiceClassName SnmpAdminString,
docsIetfQosServiceFlowLogPolicedDropPkts Counter32,
docsIetfQosServiceFlowLogPolicedDelayPkts Counter32,
docsIetfQosServiceFlowLogControl INTEGER
}
docsIetfQosServiceFlowLogIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Unique index for a logged service flow."
::= { docsIetfQosServiceFlowLogEntry 1 }
docsIetfQosServiceFlowLogIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The ifIndex of ifType docsCableMaclayer(127)
on the CMTS where the service flow was present."
::= { docsIetfQosServiceFlowLogEntry 2 }
docsIetfQosServiceFlowLogSFID OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The index assigned to the service flow by the CMTS."
::= { docsIetfQosServiceFlowLogEntry 3 }
docsIetfQosServiceFlowLogCmMac OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The MAC address for the cable modem associated with
the service flow."
::= { docsIetfQosServiceFlowLogEntry 4 }
docsIetfQosServiceFlowLogPkts OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of packets counted on this service flow
after payload header suppression."
::= { docsIetfQosServiceFlowLogEntry 5 }
docsIetfQosServiceFlowLogOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The number of octets counted on this service flow
after payload header suppression."
::= { docsIetfQosServiceFlowLogEntry 6 }
docsIetfQosServiceFlowLogTimeDeleted OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The value of sysUpTime when the service flow
was deleted."
::= { docsIetfQosServiceFlowLogEntry 7 }
docsIetfQosServiceFlowLogTimeCreated OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The value of sysUpTime when the service flow
was created."
::= { docsIetfQosServiceFlowLogEntry 8 }
docsIetfQosServiceFlowLogTimeActive OBJECT-TYPE
SYNTAX Counter32
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The total time that the service flow was active."
::= { docsIetfQosServiceFlowLogEntry 9 }
docsIetfQosServiceFlowLogDirection OBJECT-TYPE
SYNTAX DocsIetfQosRfMacIfDirection
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The value of docsIetfQosServiceFlowDirection
for the service flow."
::= { docsIetfQosServiceFlowLogEntry 10 }
docsIetfQosServiceFlowLogPrimary OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The value of docsIetfQosServiceFlowPrimary for the
service flow."
::= { docsIetfQosServiceFlowLogEntry 11 }
docsIetfQosServiceFlowLogServiceClassName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The value of docsIetfQosParamSetServiceClassName for
the provisioned QOS Parameter Set of the
service flow."
::= { docsIetfQosServiceFlowLogEntry 12 }
docsIetfQosServiceFlowLogPolicedDropPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The final value of
docsIetfQosServiceFlowPolicedDropPkts for the
service flow."
::= { docsIetfQosServiceFlowLogEntry 13 }
docsIetfQosServiceFlowLogPolicedDelayPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The final value of
docsIetfQosServiceFlowPolicedDelayPkts for the
service flow."
::= { docsIetfQosServiceFlowLogEntry 14 }
docsIetfQosServiceFlowLogControl OBJECT-TYPE
SYNTAX INTEGER {
active(1),
destroy(6)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION "Setting this object to the value destroy(6) removes
this entry from the table.
Reading this object returns the value active(1)."
::= { docsIetfQosServiceFlowLogEntry 15 }
--
-- Service Class Table (CMTS ONLY)
--
docsIetfQosServiceClassTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosServiceClassEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes the set of DOCSIS-QOS
Service Classes in a CMTS."
::= { docsIetfQosMIBObjects 8 }
docsIetfQosServiceClassEntry OBJECT-TYPE
SYNTAX DocsIetfQosServiceClassEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "A provisioned service class on a CMTS.
Each entry defines a template for certain
DOCSIS QOS Parameter Set values. When a CM
creates or modifies an Admitted QOS Parameter Set
for a Service Flow, it may reference a Service Class
Name instead of providing explicit QOS Parameter
Set values. In this case, the CMTS populates
the QOS Parameter Set with the applicable
corresponding values from the named Service Class.
Subsequent changes to a Service Class row do not
affect the QOS Parameter Set values of any service
flows already admitted.
A service class template applies to only
a single direction, as indicated in the
docsIetfQosServiceClassDirection object."
INDEX {
docsIetfQosServiceClassName
}
::= { docsIetfQosServiceClassTable 1 }
DocsIetfQosServiceClassEntry ::= SEQUENCE {
docsIetfQosServiceClassName SnmpAdminString,
docsIetfQosServiceClassStatus RowStatus,
docsIetfQosServiceClassPriority Integer32,
docsIetfQosServiceClassMaxTrafficRate DocsIetfQosBitRate,
docsIetfQosServiceClassMaxTrafficBurst Unsigned32,
docsIetfQosServiceClassMinReservedRate DocsIetfQosBitRate,
docsIetfQosServiceClassMinReservedPkt Integer32,
docsIetfQosServiceClassMaxConcatBurst Integer32,
docsIetfQosServiceClassNomPollInterval Unsigned32,
docsIetfQosServiceClassTolPollJitter Unsigned32,
docsIetfQosServiceClassUnsolicitGrantSize Integer32,
docsIetfQosServiceClassNomGrantInterval Unsigned32,
docsIetfQosServiceClassTolGrantJitter Unsigned32,
docsIetfQosServiceClassGrantsPerInterval Integer32,
docsIetfQosServiceClassMaxLatency Unsigned32,
docsIetfQosServiceClassActiveTimeout Integer32,
docsIetfQosServiceClassAdmittedTimeout Integer32,
docsIetfQosServiceClassSchedulingType DocsIetfQosSchedulingType,
docsIetfQosServiceClassRequestPolicy OCTET STRING,
docsIetfQosServiceClassTosAndMask OCTET STRING,
docsIetfQosServiceClassTosOrMask OCTET STRING,
docsIetfQosServiceClassDirection DocsIetfQosRfMacIfDirection,
docsIetfQosServiceClassStorageType StorageType,
docsIetfQosServiceClassDSCPOverwrite DscpOrAny
}
docsIetfQosServiceClassName OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE (1..15))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Service Class Name. DOCSIS specifies that the
maximum size is 16 ASCII characters including
a terminating zero. The terminating zero is not
represented in this SnmpAdminString syntax object."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.3.4"
::= { docsIetfQosServiceClassEntry 1 }
docsIetfQosServiceClassStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Used to create or delete rows in this table.
There is no restriction on the ability to change
values in this row while the row is active.
Inactive rows need not be timed out."
::= { docsIetfQosServiceClassEntry 2 }
docsIetfQosServiceClassPriority OBJECT-TYPE
SYNTAX Integer32 (0..7)
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetPriority."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 3 }
docsIetfQosServiceClassMaxTrafficRate OBJECT-TYPE
SYNTAX DocsIetfQosBitRate
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetMaxTrafficRate."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 4 }
docsIetfQosServiceClassMaxTrafficBurst OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetMaxTrafficBurst."
DEFVAL { 3044 }
::= { docsIetfQosServiceClassEntry 5 }
docsIetfQosServiceClassMinReservedRate OBJECT-TYPE
SYNTAX DocsIetfQosBitRate
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSEtMinReservedRate."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 6 }
docsIetfQosServiceClassMinReservedPkt OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetMinReservedPkt."
::= { docsIetfQosServiceClassEntry 7 }
docsIetfQosServiceClassMaxConcatBurst OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetMaxConcatBurst."
DEFVAL { 1522 }
::= { docsIetfQosServiceClassEntry 8 }
docsIetfQosServiceClassNomPollInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetNomPollInterval."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 9 }
docsIetfQosServiceClassTolPollJitter OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetTolPollJitter."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 10 }
docsIetfQosServiceClassUnsolicitGrantSize OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetUnsolicitGrantSize."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 11 }
docsIetfQosServiceClassNomGrantInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetNomGrantInterval."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 12 }
docsIetfQosServiceClassTolGrantJitter OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetTolGrantJitter."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 13 }
docsIetfQosServiceClassGrantsPerInterval OBJECT-TYPE
SYNTAX Integer32 (0..127)
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetGrantsPerInterval."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 14 }
docsIetfQosServiceClassMaxLatency OBJECT-TYPE
SYNTAX Unsigned32
UNITS "microseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetClassMaxLatency."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.7.1"
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 15 }
docsIetfQosServiceClassActiveTimeout OBJECT-TYPE
SYNTAX Integer32 (0..65535)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetActiveTimeout."
DEFVAL { 0 }
::= { docsIetfQosServiceClassEntry 16 }
docsIetfQosServiceClassAdmittedTimeout OBJECT-TYPE
SYNTAX Integer32 (0..65535)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetAdmittedTimeout."
DEFVAL { 200 }
::= { docsIetfQosServiceClassEntry 17 }
docsIetfQosServiceClassSchedulingType OBJECT-TYPE
SYNTAX DocsIetfQosSchedulingType
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetSchedulingType."
DEFVAL { bestEffort }
::= { docsIetfQosServiceClassEntry 18 }
docsIetfQosServiceClassRequestPolicy OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(4))
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetRequestPolicyOct."
DEFVAL { '00000000'H } -- no bits are set
::= { docsIetfQosServiceClassEntry 19 }
docsIetfQosServiceClassTosAndMask OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetTosAndMask.
The IP TOS octet as originally defined in RFC 791
has been superseded by the 6-bit Differentiated
Services Field (DSField, RFC 3260) and the 2-bit
Explicit Congestion Notification Field (ECN field,
RFC 3168). Network operators SHOULD avoid
specifying values of
docsIetfQosServiceClassTosAndMask and
docsIetfQosServiceClassTosOrMask that would result
in the modification of the ECN bits.
In particular, operators should not use values of
docsIetfQosServiceClassTosAndMask that have either
of the least-significant two bits set to 0.
Similarly,operators should not use values of
docsIetfQosServiceClassTosOrMask that have either
of the least-significant two bits set to 1."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.10;
RFC 3168, The Addition of Explicit Congestion
Notification (ECN) to IP;
RFC 3260, New Terminology and Clarifications for
Diffserv."
::= { docsIetfQosServiceClassEntry 20 }
docsIetfQosServiceClassTosOrMask OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Template for docsIetfQosParamSetTosOrMask.
The IP TOS octet as originally defined in RFC 791
has been superseded by the 6-bit Differentiated
Services Field (DSField, RFC 3260) and the 2-bit
Explicit Congestion Notification Field (ECN field,
RFC 3168). Network operators SHOULD avoid
specifying values of
docsIetfQosServiceClassTosAndMask and
docsIetfQosServiceClassTosOrMask that would result
in the modification of the ECN bits.
In particular, operators should not use values of
docsIetfQosServiceClassTosAndMask that have either
of the least-significant two bits set to 0.
Similarly, operators should not use values of
docsIetfQosServiceClassTosOrMask that have either
of the least-significant two bits set to 1."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.6.10;
RFC 3168, The Addition of Explicit Congestion
Notification (ECN) to IP;
RFC 3260, New Terminology and Clarifications for
Diffserv."
::= { docsIetfQosServiceClassEntry 21 }
docsIetfQosServiceClassDirection OBJECT-TYPE
SYNTAX DocsIetfQosRfMacIfDirection
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Specifies whether the service class template
applies to upstream or downstream service flows."
DEFVAL { upstream }
::= { docsIetfQosServiceClassEntry 22 }
docsIetfQosServiceClassStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION "This object defines whether this row is kept in
volatile storage and lost upon reboot or whether
it is backed up by non-volatile or permanent
storage. 'permanent' entries need not allow
writable access to any object."
DEFVAL { nonVolatile }
::= { docsIetfQosServiceClassEntry 23 }
docsIetfQosServiceClassDSCPOverwrite OBJECT-TYPE
SYNTAX DscpOrAny
MAX-ACCESS read-create
STATUS current
DESCRIPTION "This object allows the overwrite of the DSCP
field per RFC 3260.
If this object is -1, then the corresponding entry's
docsIetfQosServiceClassTosAndMask value MUST be
'FF'H and docsIetfQosServiceClassTosOrMask MUST be
'00'H. Otherwise, this object is in the range of
0..63, and the corresponding entry's
docsIetfQosServiceClassTosAndMask value MUST be
'03'H and the docsIetfQosServiceClassTosOrMask MUST
be this object's value shifted left by two bit
positions."
REFERENCE "RFC 3168, The Addition of Explicit Congestion
Notification (ECN) to IP;
RFC 3260, New Terminology and Clarifications for
Diffserv."
DEFVAL { -1 }
::= { docsIetfQosServiceClassEntry 24 }
--
-- Service Class PolicyTable
--
docsIetfQosServiceClassPolicyTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosServiceClassPolicyEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes the set of DOCSIS-QOS
Service Class Policies.
This table is an adjunct to the
docsDevFilterPolicy table. Entries in the
docsDevFilterPolicy table can point to
specific rows in this table.
This table permits mapping a packet to a service
class name of an active service flow so long as
a classifier does not exist at a higher
priority."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix E.2.1"
::= { docsIetfQosMIBObjects 9 }
docsIetfQosServiceClassPolicyEntry OBJECT-TYPE
SYNTAX DocsIetfQosServiceClassPolicyEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "A service class name policy entry."
INDEX {
docsIetfQosServiceClassPolicyIndex
}
::= { docsIetfQosServiceClassPolicyTable 1 }
DocsIetfQosServiceClassPolicyEntry ::= SEQUENCE {
docsIetfQosServiceClassPolicyIndex Unsigned32,
docsIetfQosServiceClassPolicyName SnmpAdminString,
docsIetfQosServiceClassPolicyRulePriority Integer32,
docsIetfQosServiceClassPolicyStatus RowStatus,
docsIetfQosServiceClassPolicyStorageType StorageType
}
docsIetfQosServiceClassPolicyIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "Index value to identify an entry in
this table uniquely."
::= { docsIetfQosServiceClassPolicyEntry 1 }
docsIetfQosServiceClassPolicyName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Service Class Name to identify the name of the
service class flow to which the packet should be
directed."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix E.2.1"
::= { docsIetfQosServiceClassPolicyEntry 2 }
docsIetfQosServiceClassPolicyRulePriority OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Service Class Policy rule priority for the
entry."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.1.3.5"
::= { docsIetfQosServiceClassPolicyEntry 3 }
docsIetfQosServiceClassPolicyStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION "Used to create or delete rows in this table.
This object should not be deleted if it is
referenced by an entry in docsDevFilterPolicy.
The reference should be deleted first.
There is no restriction on the ability
to change values in this row while the row is
active. Inactive rows need not be timed out."
::= { docsIetfQosServiceClassPolicyEntry 4 }
docsIetfQosServiceClassPolicyStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION "This object defines whether this row is kept in
volatile storage and lost upon reboot or whether
it is backed up by non-volatile or permanent
storage. 'permanent' entries need not allow
writable access to any object."
DEFVAL { nonVolatile }
::= { docsIetfQosServiceClassPolicyEntry 5 }
--
-- Payload Header Suppression(PHS) Table
--
docsIetfQosPHSTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosPHSEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table describes the set of payload header
suppression entries."
::= { docsIetfQosMIBObjects 10 }
docsIetfQosPHSEntry OBJECT-TYPE
SYNTAX DocsIetfQosPHSEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "A payload header suppression entry.
The ifIndex is an ifType of docsCableMaclayer(127).
The index docsIetfQosServiceFlowId selects one
service flow from the cable MAC layer interface.
The docsIetfQosPktClassId index matches an
index of the docsIetfQosPktClassTable."
INDEX {
ifIndex,
docsIetfQosServiceFlowId,
docsIetfQosPktClassId
}
::= { docsIetfQosPHSTable 1 }
DocsIetfQosPHSEntry ::= SEQUENCE {
docsIetfQosPHSField OCTET STRING,
docsIetfQosPHSMask OCTET STRING,
docsIetfQosPHSSize Integer32,
docsIetfQosPHSVerify TruthValue,
docsIetfQosPHSIndex Integer32
}
docsIetfQosPHSField OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Payload header suppression field defines the
bytes of the header that must be
suppressed/restored by the sending/receiving
device.
The number of octets in this object should be
the same as the value of docsIetfQosPHSSize."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.10.1"
::= { docsIetfQosPHSEntry 1 }
docsIetfQosPHSMask OBJECT-TYPE
SYNTAX OCTET STRING(SIZE(0..32))
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Payload header suppression mask defines the
bit mask that is used in combination with the
docsIetfQosPHSField. It defines which bytes in
the header must be suppressed/restored by the
sending or receiving device.
Each bit of this bit mask corresponds to a byte
in the docsIetfQosPHSField, with the least
significant bit corresponding to the first byte
of the docsIetfQosPHSField.
Each bit of the bit mask specifies whether
the corresponding byte should be suppressed
in the packet. A bit value of '1' indicates that
the byte should be suppressed by the sending
device and restored by the receiving device.
A bit value of '0' indicates that
the byte should not be suppressed by the sending
device or restored by the receiving device.
If the bit mask does not contain a bit for each
byte in the docsIetfQosPHSField, then the bit mask
is extended with bit values of '1' to be the
necessary length."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.10.3"
::= { docsIetfQosPHSEntry 2 }
docsIetfQosPHSSize OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Payload header suppression size specifies the
number of bytes in the header to be suppressed
and restored.
The value of this object must match the number
of bytes in the docsIetfQosPHSField."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.10.4"
::= { docsIetfQosPHSEntry 3 }
docsIetfQosPHSVerify OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Payload header suppression verification value. If
'true', the sender must verify docsIetfQosPHSField
is the same as what is contained in the packet
to be suppressed."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.10.5"
::= { docsIetfQosPHSEntry 4 }
docsIetfQosPHSIndex OBJECT-TYPE
SYNTAX Integer32 (1..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION "Payload header suppression index uniquely
references the PHS rule for a given service flow."
REFERENCE "SP-RFIv2.0-I06-040804, Appendix C.2.2.10.2"
::= { docsIetfQosPHSEntry 5 }
--
-- docsIetfQosCmtsMacToSrvFlowTable (CMTS Only)
--
docsIetfQosCmtsMacToSrvFlowTable OBJECT-TYPE
SYNTAX SEQUENCE OF DocsIetfQosCmtsMacToSrvFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "This table provides for referencing the service
flows associated with a particular cable modem.
This allows indexing into other docsIetfQos
tables that are indexed by docsIetfQosServiceFlowId
and ifIndex."
::= { docsIetfQosMIBObjects 11 }
docsIetfQosCmtsMacToSrvFlowEntry OBJECT-TYPE
SYNTAX DocsIetfQosCmtsMacToSrvFlowEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "An entry is created by CMTS for each service flow
connected to this CMTS."
INDEX {
docsIetfQosCmtsCmMac,
docsIetfQosCmtsServiceFlowId
}
::= { docsIetfQosCmtsMacToSrvFlowTable 1 }
DocsIetfQosCmtsMacToSrvFlowEntry ::= SEQUENCE {
docsIetfQosCmtsCmMac MacAddress,
docsIetfQosCmtsServiceFlowId Unsigned32,
docsIetfQosCmtsIfIndex InterfaceIndex
}
docsIetfQosCmtsCmMac OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "The MAC address for the referenced CM."
::= { docsIetfQosCmtsMacToSrvFlowEntry 1 }
docsIetfQosCmtsServiceFlowId OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION "An index assigned to a service flow by CMTS."
::= { docsIetfQosCmtsMacToSrvFlowEntry 2 }
docsIetfQosCmtsIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION "The ifIndex of ifType docsCableMacLayer(127)
on the CMTS that is connected to the Cable Modem."
::= { docsIetfQosCmtsMacToSrvFlowEntry 3 }
--
-- Conformance definitions
--
docsIetfQosConformance OBJECT IDENTIFIER
::= { docsIetfQosMIB 2 }
docsIetfQosGroups OBJECT IDENTIFIER
::= { docsIetfQosConformance 1 }
docsIetfQosCompliances OBJECT IDENTIFIER
::= { docsIetfQosConformance 2 }
docsIetfQosCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for MCNS Cable Modems and
Cable Modem Termination Systems that implement DOCSIS
Service Flows."
MODULE -- docsIetfQosMIB
MANDATORY-GROUPS { docsIetfQosBaseGroup }
GROUP docsIetfQosCmtsGroup
DESCRIPTION
"This group is mandatory for Cable Modem Termination
Systems (CMTS) and is not implemented for Cable Modems
(CM)."
GROUP docsIetfQosParamSetGroup
DESCRIPTION
"This group is mandatory for Cable Modem Termination
Systems (CMTS) and Cable Modems. Cable modems only
implement objects in this group as read-only."
GROUP docsIetfQosSrvClassPolicyGroup
DESCRIPTION
"This group is optional for Cable Modem Termination
Systems (CMTS) and Cable Modems. This group is relevant
if policy-based service flow classification
is implemented. See docsDevPolicyTable in
DOCS-CABLE-DEVICE-MIB for more details."
GROUP docsIetfQosServiceClassGroup
DESCRIPTION
"This group is mandatory for a Cable Modem Termination
System (CMTS) that implements expansion of Service Class
Names in a QOS Parameter Set. This group is
not implemented on the Cable Modems."
OBJECT docsIetfQosPktClassPkts
DESCRIPTION
"This object only needs to be implemented in entries
that are classifying packets and not policing packets."
OBJECT docsIetfQosPktClassInetAddressType
SYNTAX InetAddressType { ipv4(1) }
DESCRIPTION
"An implementation is only required to support IPv4
address."
OBJECT docsIetfQosPktClassInetSourceAddr
SYNTAX InetAddress (SIZE(4))
DESCRIPTION
"An implementation is only required to support IPv4
address."
OBJECT docsIetfQosPktClassInetSourceMask
SYNTAX InetAddress (SIZE(4))
DESCRIPTION
"An implementation is only required to support IPv4
address."
OBJECT docsIetfQosPktClassInetDestAddr
SYNTAX InetAddress (SIZE(4))
DESCRIPTION
"An implementation is only required to support IPv4
address."
OBJECT docsIetfQosPktClassInetDestMask
SYNTAX InetAddress (SIZE(4))
DESCRIPTION
"An implementation is only required to support IPv4
address."
OBJECT docsIetfQosServiceClassStorageType
SYNTAX StorageType { nonVolatile(3) }
DESCRIPTION
"An implementation is only required to support nonvolatile
storage."
OBJECT docsIetfQosServiceClassPolicyStorageType
SYNTAX StorageType { nonVolatile(3) }
DESCRIPTION
"An implementation is only required to support nonvolatile
storage."
::= { docsIetfQosCompliances 1 }
docsIetfQosBaseGroup OBJECT-GROUP
OBJECTS {
docsIetfQosPktClassDirection,
docsIetfQosPktClassPriority,
docsIetfQosPktClassIpTosLow,
docsIetfQosPktClassIpTosHigh,
docsIetfQosPktClassIpTosMask,
docsIetfQosPktClassIpProtocol,
docsIetfQosPktClassSourcePortStart,
docsIetfQosPktClassSourcePortEnd,
docsIetfQosPktClassDestPortStart,
docsIetfQosPktClassDestPortEnd,
docsIetfQosPktClassDestMacAddr,
docsIetfQosPktClassDestMacMask,
docsIetfQosPktClassSourceMacAddr,
docsIetfQosPktClassEnetProtocolType,
docsIetfQosPktClassEnetProtocol,
docsIetfQosPktClassUserPriLow,
docsIetfQosPktClassUserPriHigh,
docsIetfQosPktClassVlanId,
docsIetfQosPktClassStateActive,
docsIetfQosPktClassPkts,
docsIetfQosPktClassBitMap,
docsIetfQosPktClassInetAddressType,
docsIetfQosPktClassInetSourceAddr,
docsIetfQosPktClassInetSourceMask,
docsIetfQosPktClassInetDestAddr,
docsIetfQosPktClassInetDestMask,
docsIetfQosServiceFlowSID,
docsIetfQosServiceFlowDirection,
docsIetfQosServiceFlowPrimary,
docsIetfQosServiceFlowPkts,
docsIetfQosServiceFlowOctets,
docsIetfQosServiceFlowTimeCreated,
docsIetfQosServiceFlowTimeActive,
docsIetfQosServiceFlowPHSUnknowns,
docsIetfQosServiceFlowPolicedDropPkts,
docsIetfQosServiceFlowPolicedDelayPkts,
docsIetfQosDSAReqs,
docsIetfQosDSARsps,
docsIetfQosDSAAcks,
docsIetfQosDSCReqs,
docsIetfQosDSCRsps,
docsIetfQosDSCAcks,
docsIetfQosDSDReqs,
docsIetfQosDSDRsps,
docsIetfQosDynamicAdds,
docsIetfQosDynamicAddFails,
docsIetfQosDynamicChanges,
docsIetfQosDynamicChangeFails,
docsIetfQosDynamicDeletes,
docsIetfQosDynamicDeleteFails,
docsIetfQosDCCReqs,
docsIetfQosDCCRsps,
docsIetfQosDCCAcks,
docsIetfQosDCCs,
docsIetfQosDCCFails,
docsIetfQosPHSField,
docsIetfQosPHSMask,
docsIetfQosPHSSize,
docsIetfQosPHSVerify,
docsIetfQosPHSIndex
}
STATUS current
DESCRIPTION
"Group of objects implemented in both Cable Modems and
Cable Modem Termination Systems."
::= { docsIetfQosGroups 1 }
docsIetfQosParamSetGroup OBJECT-GROUP
OBJECTS {
docsIetfQosParamSetServiceClassName,
docsIetfQosParamSetPriority,
docsIetfQosParamSetMaxTrafficRate,
docsIetfQosParamSetMaxTrafficBurst,
docsIetfQosParamSetMinReservedRate,
docsIetfQosParamSetMinReservedPkt,
docsIetfQosParamSetActiveTimeout,
docsIetfQosParamSetAdmittedTimeout,
docsIetfQosParamSetMaxConcatBurst,
docsIetfQosParamSetSchedulingType,
docsIetfQosParamSetNomPollInterval,
docsIetfQosParamSetTolPollJitter,
docsIetfQosParamSetUnsolicitGrantSize,
docsIetfQosParamSetNomGrantInterval,
docsIetfQosParamSetTolGrantJitter,
docsIetfQosParamSetGrantsPerInterval,
docsIetfQosParamSetTosAndMask,
docsIetfQosParamSetTosOrMask,
docsIetfQosParamSetMaxLatency,
docsIetfQosParamSetRequestPolicyOct,
docsIetfQosParamSetBitMap
}
STATUS current
DESCRIPTION
"Group of objects implemented in both Cable Modems and
Cable Modem Termination Systems for QOS Parameter Sets."
::= { docsIetfQosGroups 2 }
docsIetfQosCmtsGroup OBJECT-GROUP
OBJECTS {
docsIetfQosUpstreamFragments,
docsIetfQosUpstreamFragDiscards,
docsIetfQosUpstreamConcatBursts,
docsIetfQosServiceFlowLogIfIndex,
docsIetfQosServiceFlowLogSFID,
docsIetfQosServiceFlowLogCmMac,
docsIetfQosServiceFlowLogPkts,
docsIetfQosServiceFlowLogOctets,
docsIetfQosServiceFlowLogTimeDeleted,
docsIetfQosServiceFlowLogTimeCreated,
docsIetfQosServiceFlowLogTimeActive,
docsIetfQosServiceFlowLogDirection,
docsIetfQosServiceFlowLogPrimary,
docsIetfQosServiceFlowLogServiceClassName,
docsIetfQosServiceFlowLogPolicedDropPkts,
docsIetfQosServiceFlowLogPolicedDelayPkts,
docsIetfQosServiceFlowLogControl,
docsIetfQosCmtsIfIndex -- docsIetfQosCmtsMacToSrvFlowTable required
}
STATUS current
DESCRIPTION
"Group of objects implemented only in the CMTS."
::= { docsIetfQosGroups 3 }
docsIetfQosSrvClassPolicyGroup OBJECT-GROUP
OBJECTS {
docsIetfQosServiceClassPolicyName,
docsIetfQosServiceClassPolicyRulePriority,
docsIetfQosServiceClassPolicyStatus,
docsIetfQosServiceClassPolicyStorageType
}
STATUS current
DESCRIPTION
"Group of objects implemented in both Cable Modems and
Cable Modem Termination Systems when supporting policy-based
service flows."
::= { docsIetfQosGroups 4 }
docsIetfQosServiceClassGroup OBJECT-GROUP
OBJECTS {
docsIetfQosServiceClassStatus,
docsIetfQosServiceClassPriority,
docsIetfQosServiceClassMaxTrafficRate,
docsIetfQosServiceClassMaxTrafficBurst,
docsIetfQosServiceClassMinReservedRate,
docsIetfQosServiceClassMinReservedPkt,
docsIetfQosServiceClassMaxConcatBurst,
docsIetfQosServiceClassNomPollInterval,
docsIetfQosServiceClassTolPollJitter,
docsIetfQosServiceClassUnsolicitGrantSize,
docsIetfQosServiceClassNomGrantInterval,
docsIetfQosServiceClassTolGrantJitter,
docsIetfQosServiceClassGrantsPerInterval,
docsIetfQosServiceClassMaxLatency,
docsIetfQosServiceClassActiveTimeout,
docsIetfQosServiceClassAdmittedTimeout,
docsIetfQosServiceClassSchedulingType,
docsIetfQosServiceClassRequestPolicy,
docsIetfQosServiceClassTosAndMask,
docsIetfQosServiceClassTosOrMask,
docsIetfQosServiceClassDirection,
docsIetfQosServiceClassStorageType,
docsIetfQosServiceClassDSCPOverwrite
}
STATUS current
DESCRIPTION
"Group of objects implemented only in Cable Modem
Termination Systems when supporting expansion of Service
Class Names in a QOS Parameter Set"
::= { docsIetfQosGroups 5 }
END
6. Security Considerations
This MIB module relates to an agent that will provide metropolitan
public Internet access. As such, improper manipulation of the
objects represented by this MIB module may result in denial of
service to a large number of end-users [6]. Manipulation of the
docsIetfQosServiceClassTable and docsIetfQosServiceClassPolicyTable
may allow an end-user to increase his or her service levels, or
affect other end-users in either a positive or negative manner. In
addition, manipulation of docsIetfQosServiceFlowLogControl could
allow an attacker to remove logs of packet and byte counts forwarded
on a Service Flow. If such logs were used for billing, the attacker
would obtain free service.
There are a number of management objects defined in this MIB module
with a MAX-ACCESS clause of read-write and/or read-create. Such
objects may be considered sensitive or vulnerable in some network
environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations. These are the tables and objects and their
sensitivity/vulnerability:
o The docsIetfQosServiceClassTable provides a template of QOS
parameters such as maximum rate limits for a named service
class. Changing these parameters would allow an attacker to
obtain an unauthorized class of service.
o The docsIetfQosServiceClassPolicyTable applies CMTS vendor
proprietary policies for packet forwarding, including
dropping, scheduling, notification, or other policies.
Changing this table could allow an attacker to deny service to
all subscribers of the CMTS or could grant the attacker
unauthorized forwarding policies.
o The docsIetfQosServiceFlowLogControl object controls the
deletion of entries in the docsIetfQosServiceFlowLogTable,
which acts as a historical "detail record" of DOCSIS Service
Flow packets and bytes transmitted. Such records may be used
for billing purposes, so the unauthorized deletion of the
records can result in free service.
Some of the readable objects in this MIB module (i.e., objects with a
MAX-ACCESS other than not-accessible) may be considered sensitive or
vulnerable in some network environments. It is thus important to
control even GET access to these objects and possibly to even encrypt
the values of these objects when sending them over the network via
SNMP. These are the tables and objects and their
sensitivity/vulnerability:
o Unauthorized SNMP GET access of the docsIetfQosPktClassTable
or docsIetfQosPHSTable can allow an attacker to learn IP
addresses permitted to have enhanced quality of service, for
possible spoofing. This table typically contains the IP
addresses involved in voice-over-IP sessions, for example.
o Unauthorized SNMP GET access of the docsIetfQosParamSetTable
allows an attacker to learn the names of Service Classes that
are permitted to have enhanced QoS service, and the values of
that enhanced service. That name can be referenced in an
unauthorized DOCSIS cable modem configuration file to obtain
enhanced service.
o Unauthorized SNMP GET access of the
docsIetfQosServiceFlowTable can tell an attacker when Service
Flows are active, e.g., when a voice-over-IP call is in
progress.
Unauthorized SNMP GET access of the
docsIetfQosServiceFlowLogTable can expose private information
about network usage.
o Unauthorized SNMP GET access of the
docsIetfQosServiceFlowStatsTable,
docsIetfQosUpstreamStatsTable,
docsIetfQosDynamicServiceStatsTable,
docsIetfQosServiceFlowLogTable, and
docsIetfQosCmtsMacToSrvFlowTable can tell an attacker the
volume of traffic to and from any Service Flow in the system,
resulting in loss of privacy of the amount and direction of
data transfer.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPSec),
even then, there is no control as to who on the secure network is
allowed to access and GET/SET (read/change/create/delete) the objects
in this MIB module. It is RECOMMENDED that implementers consider the
security features as provided by the SNMPv3 framework (see [15],
section 8), including full support for the SNMPv3 cryptographic
mechanisms (for authentication and privacy). Further, deployment of
SNMP versions prior to SNMPv3 is NOT RECOMMENDED. Instead, it is
RECOMMENDED to deploy SNMPv3 and to enable cryptographic security.
It is then a customer/operator responsibility to ensure that the SNMP
entity giving access to an instance of this MIB module, is properly
configured to give access to the objects only to those principals
(users) that have legitimate rights to indeed GET or SET
(change/create/delete) them.
7. IANA Considerations
The MIB module in this document uses the following IANA-assigned
OBJECT IDENTIFIER values recorded in the SMI Numbers registry:
Descriptor OBJECT IDENTIFIER Value
-------------- -----------------------
docsIetfQosMIB { mib-2 127 }
8. Acknowledgements
The authors gratefully acknowledge the comments and suggestions of
the IP over Cable Data Network (IPCDN) Working Group (especially the
co-chairs Richard Woundy and Jean-Francois Mule) as well as the
contributions of the Operation and Management Area Director, Bert
Wijnen.
9. Normative References
[1] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Structure of
Management Information Version 2 (SMIv2)", STD 58, RFC 2578,
April 1999.
[2] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Textual
Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[3] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Conformance
Statements for SMIv2", STD 58, RFC 2580, April 1999.
[4] "Data-Over-Cable Service Interface Specifications: Radio
Frequency Interface Specification SP-RFIv2.0-I06-040804",
DOCSIS, August 2004,
http://www.cablelabs.com/specifications/archives/.
[5] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", BCP 14, RFC 2119, March 1997.
[6] St. Johns, M., "Cable Device Management Information Base for
DOCSIS compliant Cable Modems and Cable Modem Termination
Systems", RFC 2669, August 1999.
[7] St. Johns, M., "Radio Frequency (RF) Interface Management
Information Base for MCNS/DOCSIS compliant RF interfaces", RFC
2670, August 1999.
[8] Daniele, M., Haberman, B., Routhier, S., and J. Schoenwaelder,
"Textual Conventions for Internet Network Addresses", RFC 4001,
February 2005.
[9] Grossman, D., "New Terminology and Clarifications for Diffserv",
RFC 3260, April 2002.
[10] Ramakrishnan, K., Floyd, S., and D. Black, "The Addition of
Explicit Congestion Notification (ECN) to IP", RFC 3168,
September 2001.
[11] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB",
RFC 2863, June 2000.
[12] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for
Describing Simple Network Management Protocol (SNMP) Management
Frameworks", STD 62, RFC 3411, December 2002.
[13] Baker, F., Chan, K., and A. Smith, "Management Information Base
for the Differentiated Services Architecture", RFC 3289, May
2002.
[14] Postel, J., "Internet Protocol", STD 5, RFC 791, September 1981.
10. Informative References
[15] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction
and Applicability Statements for Internet-Standard Management
Framework", RFC 3410, December 2002.
Authors' Addresses
Michael Patrick
Motorola Broadband Communications Sector
111 Locke Drive
Marlborough, MA 01752
Phone: (508) 786-7563
EMail: michael.patrick@motorola.com
William Murwin
Motorola Broadband Communications Sector
111 Locke Drive
Marlborough, MA 01752
Phone: (508) 786-7594
EMail: w.murwin@motorola.com
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