| Rfc | 4382 |
|---|
| Title | MPLS/BGP Layer 3 Virtual Private Network (VPN) Management
Information Base |
|---|
| Author | T. Nadeau, Ed., H. van der Linde, Ed. |
|---|
| Date | February
2006 |
|---|
| Format: | TXT, HTML |
|---|
| Status: | PROPOSED STANDARD |
|---|
|
Network Working Group T. Nadeau, Ed.
Request for Comments: 4382 H. van der Linde, Ed.
Category: Standards Track Cisco Systems, Inc.
February 2006
MPLS/BGP Layer 3 Virtual Private Network (VPN)
Management Information Base
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 memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes managed objects to configure and/or
monitor Multiprotocol Label Switching Layer-3 Virtual Private
Networks on a Multiprotocol Label Switching (MPLS) Label Switching
Router (LSR) supporting this feature.
Table of Contents
1. Introduction ....................................................2
2. Terminology .....................................................3
3. The Internet-Standard Management Framework ......................3
4. Assumptions and Prerequisites ...................................3
5. Brief Description of MIB Objects ................................3
5.1. mplsL3VpnVrfTable ..........................................3
5.2. mplsL3VpnIfConfTable .......................................4
5.3. mplsL3VpnVrfPerfTable ......................................4
5.4. mplsL3VpnVrfRouteTable .....................................4
5.5. MplsVpnVrfRTTable ..........................................4
6. Example of MPLS L3VPN Setup .....................................4
7. MPLS-L3VPN-STD-MIB Module Definitions ...........................5
8. Security Considerations ........................................38
9. IANA Considerations ............................................40
9.1. IANA Considerations for MPLS-L3VPN-STD-MIB ................40
10. Dedication ....................................................40
11. Acknowledgements ..............................................40
12. References ....................................................40
12.1. Normative References .....................................40
12.2. Informative References ...................................41
1. Introduction
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes managed objects to configure and/or
monitor Multiprotocol Label Switching Layer-3 Virtual Private
Networks on a Multi-Protocol Label Switching (MPLS) Label Switching
Router (LSR) supporting this feature.
This document adopts the definitions, acronyms, and mechanisms
described in [RFC4364]. Unless otherwise stated, the mechanisms of
[RFC4364] apply and will not be re-described here.
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 [RFC2119].
2. Terminology
This document uses terminology from the document describing the MPLS
architecture [RFC3031] and from the document describing MPLS Layer-3
VPNs (L3VPN) [RFC4364], as well as the MPLS architecture [RFC3031].
Throughout this document, the use of the terms "Provider Edge (PE)
and Customer Edge (CE)" or "PE/CE" will be replaced by "PE" in all
cases except when a network device is a CE when used in the carrier's
carrier model.
3. 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 [RFC3410].
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 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].
4. Assumptions and Prerequisites
It is assumed that certain things are configured and operational in
order for the tables and objects described in this MIB to function
correctly. These things are outlined below:
- MPLS in general, must be configured and operational.
- Label Distribution Protocol (LDP) paths or traffic-engineered
tunnels [RFC3812] should be configured between PEs and CEs.
5. Brief Description of MIB Objects
The following subsections describe the purpose of each of the
objects contained in the MPLS-L3VPN-STD-MIB.
5.1. mplsL3VpnVrfTable
This table represents the MPLS L3VPNs that are configured. A
Network Management System (NMS) or SNMP agent creates an entry in
this table for every MPLS L3VPN configured on the LSR being
examined. The Virtual Routing and Forwarding (VRF) that is
configured at a particular device represents an instance of some
VPN, but not the entire VPN (unless it is the only VRF, of course).
The collective set of VRF instances comprises the actual VPN. This
information is typically only known in its entirety at the NMS.
That is, specific devices generally only know of their local VRF
information, but not that of other LSRs' VRFs.
5.2. mplsL3VpnIfConfTable
This table represents the MPLS L3VPN-enabled interfaces that are
associated with a specific VRF as represented in the aforementioned
mplsL3VpnVrfTable. Each entry in this table corresponds to an
entry in the Interfaces MIB. In addition, each entry extends its
corresponding entry in the Interfaces MIB to contain specific MPLS
L3VPN information. Due to this correspondence, certain objects
such as traffic counters are not found in this MIB to avoid
overlap, but instead are found in the Interfaces MIB [RFC2863].
5.3. mplsL3VpnVrfPerfTable
This table contains objects to measure the performance of MPLS
L3VPNs and augments the mplsL3VpnVrfTable. High capacity counters
are provided for objects that are likely to wrap around quickly on
objects such as high-speed interface counters.
5.4. mplsL3VpnVrfRouteTable
The table contains the objects necessary to configure and monitor
routes used by a particular VRF. This includes a cross-connect
pointer into the MPLS-LSR-STD-MIB's mplsXCTable, which may be used
to refer that entry to its label stack used to label switch that
entry.
5.5. MplsVpnVrfRTTable
The table contains the objects necessary to configure and monitor
route targets for a particular VRF.
6. Example of MPLS L3VPN Setup
In this section, we provide a brief example of using the MIB
objects described in the following section. While this example is
not meant to illustrate every nuance of the MIB, it is intended as
an aid to understanding some of the key concepts. It is our intent
that it is read only after the reader has gone through the MIB
itself.
This configuration is under the assumption that 1) MPLS has been
pre-configured in the network, through enabling LDP or Resource
Reservation Protocol - Traffic Engineering (RSVP-TE); 2) OSPF or
Intermediate System to Intermediate System (IS-IS) has been pre-
configured; and 3) BGP sessions have been established between PEs.
Defining the VRF, the route target, and route distinguisher:
In mplsL3VpnVrfTable:
{
mplsL3VpnVrfName = "RED",
mplsL3VpnVrfDescription = "Intranet of Company ABC",
mplsL3VpnVrfRD = "100:1", -- octet string
mplsL3VpnVrfRowStatus = createAndGo(4)
}
In mplsL3VpnVrfRouteTable:
{
mplsL3VpnVrfRTRowStatus."Red"."100:1".import = createAndGo,
mplsL3VpnVrfRTRowStatus."Red"."100:1".export = createAndGo
}
7. MPLS-L3VPN-STD-MIB Module Definitions
MPLS-L3VPN-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
Integer32, Counter32, Unsigned32, Gauge32
FROM SNMPv2-SMI -- [RFC2578]
MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
FROM SNMPv2-CONF -- [RFC2580]
TEXTUAL-CONVENTION, TruthValue, RowStatus,
TimeStamp, StorageType
FROM SNMPv2-TC -- [RFC2579]
InterfaceIndex, InterfaceIndexOrZero
FROM IF-MIB -- [RFC2863]
VPNIdOrZero
FROM VPN-TC-STD-MIB -- [RFC4265]
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- [RFC3411]
IANAipRouteProtocol
FROM IANA-RTPROTO-MIB -- [RTPROTO]
InetAddress, InetAddressType,
InetAddressPrefixLength,
InetAutonomousSystemNumber
FROM INET-ADDRESS-MIB -- [RFC4001]
mplsStdMIB
FROM MPLS-TC-STD-MIB -- [RFC3811]
MplsIndexType
FROM MPLS-LSR-STD-MIB -- [RFC3813]
;
mplsL3VpnMIB MODULE-IDENTITY
LAST-UPDATED "200601230000Z" -- 23 January 2006
ORGANIZATION "IETF Layer-3 Virtual Private
Networks Working Group."
CONTACT-INFO
" Thomas D. Nadeau
tnadeau@cisco.com
Harmen van der Linde
havander@cisco.com
Comments and discussion to l3vpn@ietf.org"
DESCRIPTION
"This MIB contains managed object definitions for the
Layer-3 Multiprotocol Label Switching Virtual
Private Networks.
Copyright (C) The Internet Society (2006). This
version of this MIB module is part of RFC4382; see
the RFC itself for full legal notices."
-- Revision history.
REVISION
"200601230000Z" -- 23 January 2006
DESCRIPTION
"Initial version. Published as RFC 4382."
::= { mplsStdMIB 11 }
-- Textual Conventions.
MplsL3VpnName ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"An identifier that is assigned to each MPLS/BGP VPN and
is used to uniquely identify it. This is assigned by the
system operator or NMS and SHOULD be unique throughout
the MPLS domain. If this is the case, then this identifier
can then be used at any LSR within a specific MPLS domain
to identify this MPLS/BGP VPN. It may also be possible to
preserve the uniqueness of this identifier across MPLS
domain boundaries, in which case this identifier can then
be used to uniquely identify MPLS/BGP VPNs on a more global
basis. This object MAY be set to the VPN ID as defined in
RFC 2685."
REFERENCE
"RFC 2685 Fox B., et al, 'Virtual Private
Networks Identifier', September 1999."
SYNTAX OCTET STRING (SIZE (0..31))
MplsL3VpnRouteDistinguisher ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Syntax for a route distinguisher and route target
as defined in [RFC4364]."
REFERENCE
"[RFC4364]"
SYNTAX OCTET STRING(SIZE (0..256))
MplsL3VpnRtType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Used to define the type of a route target usage.
Route targets can be specified to be imported,
exported, or both. For a complete definition of a
route target, see [RFC4364]."
REFERENCE
"[RFC4364]"
SYNTAX INTEGER { import(1), export(2), both(3) }
-- Top level components of this MIB.
mplsL3VpnNotifications OBJECT IDENTIFIER ::= { mplsL3VpnMIB 0 }
mplsL3VpnObjects OBJECT IDENTIFIER ::= { mplsL3VpnMIB 1 }
mplsL3VpnScalars OBJECT IDENTIFIER ::= { mplsL3VpnObjects 1 }
mplsL3VpnConf OBJECT IDENTIFIER ::= { mplsL3VpnObjects 2 }
mplsL3VpnPerf OBJECT IDENTIFIER ::= { mplsL3VpnObjects 3 }
mplsL3VpnRoute OBJECT IDENTIFIER ::= { mplsL3VpnObjects 4 }
mplsL3VpnConformance OBJECT IDENTIFIER ::= { mplsL3VpnMIB 2 }
--
-- Scalar Objects
--
mplsL3VpnConfiguredVrfs OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of VRFs that are configured on this node."
::= { mplsL3VpnScalars 1 }
mplsL3VpnActiveVrfs OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of VRFs that are active on this node.
That is, those VRFs whose corresponding mplsL3VpnVrfOperStatus
object value is equal to operational (1)."
::= { mplsL3VpnScalars 2 }
mplsL3VpnConnectedInterfaces OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of interfaces connected to a VRF."
::= { mplsL3VpnScalars 3 }
mplsL3VpnNotificationEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"If this object is true, then it enables the
generation of all notifications defined in
this MIB. This object's value should be
preserved across agent reboots."
REFERENCE
"See also [RFC3413] for explanation that
notifications are under the ultimate control of the
MIB modules in this document."
DEFVAL { false }
::= { mplsL3VpnScalars 4 }
mplsL3VpnVrfConfMaxPossRts OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Denotes maximum number of routes that the device
will allow all VRFs jointly to hold. If this value is
set to 0, this indicates that the device is
unable to determine the absolute maximum. In this
case, the configured maximum MAY not actually
be allowed by the device."
::= { mplsL3VpnScalars 5 }
mplsL3VpnVrfConfRteMxThrshTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Denotes the interval in seconds, at which the route max threshold
notification may be reissued after the maximum value has been
exceeded (or has been reached if mplsL3VpnVrfConfMaxRoutes and
mplsL3VpnVrfConfHighRteThresh are equal) and the initial
notification has been issued. This value is intended to prevent
continuous generation of notifications by an agent in the event
that routes are continually added to a VRF after it has reached
its maximum value. If this value is set to 0, the agent should
only issue a single notification at the time that the maximum
threshold has been reached, and should not issue any more
notifications until the value of routes has fallen below the
configured threshold value. This is the recommended default
behavior."
DEFVAL { 0 }
::= { mplsL3VpnScalars 6 }
mplsL3VpnIllLblRcvThrsh OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The number of illegally received labels above which
the mplsNumVrfSecIllglLblThrshExcd notification
is issued. The persistence of this value mimics
that of the device's configuration."
::= { mplsL3VpnScalars 7 }
-- VPN Interface Configuration Table
mplsL3VpnIfConfTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsL3VpnIfConfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies per-interface MPLS capability
and associated information."
::= { mplsL3VpnConf 1 }
mplsL3VpnIfConfEntry OBJECT-TYPE
SYNTAX MplsL3VpnIfConfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by an LSR for
every interface capable of supporting MPLS L3VPN.
Each entry in this table is meant to correspond to
an entry in the Interfaces Table."
INDEX { mplsL3VpnVrfName, mplsL3VpnIfConfIndex }
::= { mplsL3VpnIfConfTable 1 }
MplsL3VpnIfConfEntry ::= SEQUENCE {
mplsL3VpnIfConfIndex InterfaceIndex,
mplsL3VpnIfVpnClassification INTEGER,
mplsL3VpnIfVpnRouteDistProtocol BITS,
mplsL3VpnIfConfStorageType StorageType,
mplsL3VpnIfConfRowStatus RowStatus
}
mplsL3VpnIfConfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This is a unique index for an entry in the
mplsL3VpnIfConfTable. A non-zero index for an
entry indicates the ifIndex for the corresponding
interface entry in the MPLS-VPN-layer in the ifTable.
Note that this table does not necessarily correspond
one-to-one with all entries in the Interface MIB
having an ifType of MPLS-layer; rather, only those
that are enabled for MPLS L3VPN functionality."
REFERENCE
"RFC2863"
::= { mplsL3VpnIfConfEntry 1 }
mplsL3VpnIfVpnClassification OBJECT-TYPE
SYNTAX INTEGER { carrierOfCarrier (1),
enterprise (2),
interProvider (3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes whether this link participates in a
carrier's carrier, enterprise, or inter-provider
scenario."
DEFVAL { enterprise }
::= { mplsL3VpnIfConfEntry 2 }
mplsL3VpnIfVpnRouteDistProtocol OBJECT-TYPE
SYNTAX BITS { none (0),
bgp (1),
ospf (2),
rip(3),
isis(4),
static(5),
other (6)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes the route distribution protocol across the
PE-CE link. Note that more than one routing protocol
may be enabled at the same time; thus, this object is
specified as a bitmask. For example, static(5) and
ospf(2) are a typical configuration."
::= { mplsL3VpnIfConfEntry 3 }
mplsL3VpnIfConfStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this VPN If entry.
Conceptual rows having the value 'permanent'
need not allow write access to any columnar
objects in the row."
REFERENCE
"See RFC2579."
DEFVAL { volatile }
::= { mplsL3VpnIfConfEntry 4 }
mplsL3VpnIfConfRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. Rows in this
table signify that the specified interface is
associated with this VRF. If the row creation
operation succeeds, the interface will have been
associated with the specified VRF, otherwise the
agent MUST not allow the association. If the agent
only allows read-only operations on this table, it
MUST create entries in this table as they are created
on the device. When a row in this table is in
active(1) state, no objects in that row can be
modified except mplsL3VpnIfConfStorageType and
mplsL3VpnIfConfRowStatus."
::= { mplsL3VpnIfConfEntry 5 }
-- VRF Configuration Table
mplsL3VpnVrfTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsL3VpnVrfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies per-interface MPLS L3VPN
VRF Table capability and associated information.
Entries in this table define VRF routing instances
associated with MPLS/VPN interfaces. Note that
multiple interfaces can belong to the same VRF
instance. The collection of all VRF instances
comprises an actual VPN."
::= { mplsL3VpnConf 2 }
mplsL3VpnVrfEntry OBJECT-TYPE
SYNTAX MplsL3VpnVrfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by an LSR for
every VRF capable of supporting MPLS L3VPN. The
indexing provides an ordering of VRFs per-VPN
interface."
INDEX { mplsL3VpnVrfName }
::= { mplsL3VpnVrfTable 1 }
MplsL3VpnVrfEntry ::= SEQUENCE {
mplsL3VpnVrfName MplsL3VpnName,
mplsL3VpnVrfVpnId VPNIdOrZero,
mplsL3VpnVrfDescription SnmpAdminString,
mplsL3VpnVrfRD MplsL3VpnRouteDistinguisher,
mplsL3VpnVrfCreationTime TimeStamp,
mplsL3VpnVrfOperStatus INTEGER,
mplsL3VpnVrfActiveInterfaces Gauge32,
mplsL3VpnVrfAssociatedInterfaces Unsigned32,
mplsL3VpnVrfConfMidRteThresh Unsigned32,
mplsL3VpnVrfConfHighRteThresh Unsigned32,
mplsL3VpnVrfConfMaxRoutes Unsigned32,
mplsL3VpnVrfConfLastChanged TimeStamp,
mplsL3VpnVrfConfRowStatus RowStatus,
mplsL3VpnVrfConfAdminStatus INTEGER,
mplsL3VpnVrfConfStorageType StorageType
}
mplsL3VpnVrfName OBJECT-TYPE
SYNTAX MplsL3VpnName
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The human-readable name of this VPN. This MAY
be equivalent to the [RFC2685] VPN-ID, but may
also vary. If it is set to the VPN ID, it MUST
be equivalent to the value of mplsL3VpnVrfVpnId.
It is strongly recommended that all sites supporting
VRFs that are part of the same VPN use the same
naming convention for VRFs as well as the same VPN
ID."
REFERENCE
"[RFC2685]"
::= { mplsL3VpnVrfEntry 1 }
mplsL3VpnVrfVpnId OBJECT-TYPE
SYNTAX VPNIdOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The VPN ID as specified in [RFC2685]. If a VPN ID
has not been specified for this VRF, then this
variable SHOULD be set to a zero-length OCTET
STRING."
::= { mplsL3VpnVrfEntry 2 }
mplsL3VpnVrfDescription OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The human-readable description of this VRF."
DEFVAL { "" }
::= { mplsL3VpnVrfEntry 3 }
mplsL3VpnVrfRD OBJECT-TYPE
SYNTAX MplsL3VpnRouteDistinguisher
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The route distinguisher for this VRF."
DEFVAL { "" }
::= { mplsL3VpnVrfEntry 4 }
mplsL3VpnVrfCreationTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time at which this VRF entry was created."
::= { mplsL3VpnVrfEntry 5 }
mplsL3VpnVrfOperStatus OBJECT-TYPE
SYNTAX INTEGER { up (1),
down (2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Denotes whether or not a VRF is operational. A VRF is
up(1) when there is at least one interface associated
with the VRF whose ifOperStatus is up(1). A VRF is
down(2) when:
a. There does not exist at least one interface whose
ifOperStatus is up(1).
b. There are no interfaces associated with the VRF."
::= { mplsL3VpnVrfEntry 6 }
mplsL3VpnVrfActiveInterfaces OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of interfaces connected to this VRF with
ifOperStatus = up(1).
This value should increase when an interface is associated
with the corresponding VRF and its corresponding ifOperStatus
is equal to up(1). If an interface is associated whose
ifOperStatus is not up(1), then the value is not incremented
until such time as it transitions to this state.
This value should be decremented when an interface is
disassociated with a VRF or the corresponding ifOperStatus
transitions out of the up(1) state to any other state.
"
::= { mplsL3VpnVrfEntry 7 }
mplsL3VpnVrfAssociatedInterfaces OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of interfaces connected to this VRF
(independent of ifOperStatus type)."
::= { mplsL3VpnVrfEntry 8 }
mplsL3VpnVrfConfMidRteThresh OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes mid-level water marker for the number
of routes that this VRF may hold."
DEFVAL { 0 }
::= { mplsL3VpnVrfEntry 9 }
mplsL3VpnVrfConfHighRteThresh OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes high-level water marker for the number of
routes that this VRF may hold."
DEFVAL { 0 }
::= { mplsL3VpnVrfEntry 10 }
mplsL3VpnVrfConfMaxRoutes OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes maximum number of routes that this VRF is
configured to hold. This value MUST be less than or
equal to mplsL3VpnVrfConfMaxPossRts unless it is set
to 0."
DEFVAL { 0 }
::= { mplsL3VpnVrfEntry 11 }
mplsL3VpnVrfConfLastChanged OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time of the last
change of this table entry, which includes changes of
VRF parameters defined in this table or addition or
deletion of interfaces associated with this VRF."
::= { mplsL3VpnVrfEntry 12 }
mplsL3VpnVrfConfRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table.
When a row in this table is in active(1) state, no
objects in that row can be modified except
mplsL3VpnVrfConfAdminStatus, mplsL3VpnVrfConfRowStatus,
and mplsL3VpnVrfConfStorageType."
::= { mplsL3VpnVrfEntry 13 }
mplsL3VpnVrfConfAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
up(1), -- ready to pass packets
down(2), -- can't pass packets
testing(3) -- in some test mode
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates the desired operational status of this
VRF."
::= { mplsL3VpnVrfEntry 14 }
mplsL3VpnVrfConfStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this VPN VRF entry.
Conceptual rows having the value 'permanent'
need not allow write access to any columnar
objects in the row."
REFERENCE
"See RFC2579."
DEFVAL { volatile }
::= { mplsL3VpnVrfEntry 15 }
-- MplsL3VpnVrfRTTable
mplsL3VpnVrfRTTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsL3VpnVrfRTEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies per-VRF route target association.
Each entry identifies a connectivity policy supported
as part of a VPN."
::= { mplsL3VpnConf 3 }
mplsL3VpnVrfRTEntry OBJECT-TYPE
SYNTAX MplsL3VpnVrfRTEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by an LSR for
each route target configured for a VRF supporting
a MPLS L3VPN instance. The indexing provides an
ordering per-VRF instance. See [RFC4364] for a
complete definition of a route target."
INDEX { mplsL3VpnVrfName, mplsL3VpnVrfRTIndex,
mplsL3VpnVrfRTType }
::= { mplsL3VpnVrfRTTable 1 }
MplsL3VpnVrfRTEntry ::= SEQUENCE {
mplsL3VpnVrfRTIndex Unsigned32,
mplsL3VpnVrfRTType MplsL3VpnRtType,
mplsL3VpnVrfRT MplsL3VpnRouteDistinguisher,
mplsL3VpnVrfRTDescr SnmpAdminString,
mplsL3VpnVrfRTRowStatus RowStatus,
mplsL3VpnVrfRTStorageType StorageType
}
mplsL3VpnVrfRTIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Auxiliary index for route targets configured for a
particular VRF."
::= { mplsL3VpnVrfRTEntry 2 }
mplsL3VpnVrfRTType OBJECT-TYPE
SYNTAX MplsL3VpnRtType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The route target distribution type."
::= { mplsL3VpnVrfRTEntry 3 }
mplsL3VpnVrfRT OBJECT-TYPE
SYNTAX MplsL3VpnRouteDistinguisher
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The route target distribution policy."
DEFVAL { "" }
::= { mplsL3VpnVrfRTEntry 4 }
mplsL3VpnVrfRTDescr OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Description of the route target."
DEFVAL { "" }
::= { mplsL3VpnVrfRTEntry 5 }
mplsL3VpnVrfRTRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table is in active(1) state, no objects in that row
can be modified except mplsL3VpnVrfRTRowStatus."
::= { mplsL3VpnVrfRTEntry 6 }
mplsL3VpnVrfRTStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this VPN route target (RT) entry.
Conceptual rows having the value 'permanent'
need not allow write access to any columnar
objects in the row."
REFERENCE
"See RFC2579."
DEFVAL { volatile }
::= { mplsL3VpnVrfRTEntry 7 }
-- VRF Security Table
mplsL3VpnVrfSecTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsL3VpnVrfSecEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies per MPLS L3VPN VRF Table
security-related counters."
::= { mplsL3VpnConf 6 }
mplsL3VpnVrfSecEntry OBJECT-TYPE
SYNTAX MplsL3VpnVrfSecEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by an LSR for
every VRF capable of supporting MPLS L3VPN. Each
entry in this table is used to indicate security-related
information for each VRF entry."
AUGMENTS { mplsL3VpnVrfEntry }
::= { mplsL3VpnVrfSecTable 1 }
MplsL3VpnVrfSecEntry ::= SEQUENCE {
mplsL3VpnVrfSecIllegalLblVltns Counter32,
mplsL3VpnVrfSecDiscontinuityTime TimeStamp
}
mplsL3VpnVrfSecIllegalLblVltns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of illegally received
labels on this VPN/VRF.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
mplsL3VpnVrfSecDiscontinuityTime."
::= { mplsL3VpnVrfSecEntry 1 }
mplsL3VpnVrfSecDiscontinuityTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at
which any one or more of this entry's counters suffered
a discontinuity. If no such discontinuities have
occurred since the last re-initialization of the local
management subsystem, then this object contains a zero
value."
::= { mplsL3VpnVrfSecEntry 2 }
-- VRF Performance Table
mplsL3VpnVrfPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsL3VpnVrfPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies per MPLS L3VPN VRF Table performance
information."
::= { mplsL3VpnPerf 1 }
mplsL3VpnVrfPerfEntry OBJECT-TYPE
SYNTAX MplsL3VpnVrfPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by an LSR for
every VRF capable of supporting MPLS L3VPN."
AUGMENTS { mplsL3VpnVrfEntry }
::= { mplsL3VpnVrfPerfTable 1 }
MplsL3VpnVrfPerfEntry ::= SEQUENCE {
mplsL3VpnVrfPerfRoutesAdded Counter32,
mplsL3VpnVrfPerfRoutesDeleted Counter32,
mplsL3VpnVrfPerfCurrNumRoutes Gauge32,
mplsL3VpnVrfPerfRoutesDropped Counter32,
mplsL3VpnVrfPerfDiscTime TimeStamp
}
mplsL3VpnVrfPerfRoutesAdded OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of routes added to this VPN/VRF
since the last discontinuity. Discontinuities in
the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
mplsL3VpnVrfPerfDiscTime."
::= { mplsL3VpnVrfPerfEntry 1 }
mplsL3VpnVrfPerfRoutesDeleted OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of routes removed from this VPN/VRF.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
mplsL3VpnVrfPerfDiscTime."
::= { mplsL3VpnVrfPerfEntry 2 }
mplsL3VpnVrfPerfCurrNumRoutes OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of routes currently used by this
VRF."
::= { mplsL3VpnVrfPerfEntry 3 }
mplsL3VpnVrfPerfRoutesDropped OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This counter should be incremented when the number of routes
contained by the specified VRF exceeds or attempts to exceed
the maximum allowed value as indicated by
mplsL3VpnVrfMaxRouteThreshold.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
mplsL3VpnVrfPerfDiscTime."
::= { mplsL3VpnVrfPerfEntry 4 }
mplsL3VpnVrfPerfDiscTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at
which any one or more of this entry's counters suffered
a discontinuity. If no such discontinuities have
occurred since the last re-initialization of the local
management subsystem, then this object contains a zero
value."
::= { mplsL3VpnVrfPerfEntry 5 }
-- VRF Routing Table
mplsL3VpnVrfRteTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsL3VpnVrfRteEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies per-interface MPLS L3VPN VRF Table
routing information. Entries in this table define VRF routing
entries associated with the specified MPLS/VPN interfaces. Note
that this table contains both BGP and Interior Gateway Protocol
IGP routes, as both may appear in the same VRF."
REFERENCE
"[RFC2096]"
::= { mplsL3VpnRoute 1 }
mplsL3VpnVrfRteEntry OBJECT-TYPE
SYNTAX MplsL3VpnVrfRteEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by an LSR for every route
present configured (either dynamically or statically) within
the context of a specific VRF capable of supporting MPLS/BGP
VPN. The indexing provides an ordering of VRFs per-VPN
interface.
Implementers need to be aware that there are quite a few
index objects that together can exceed the size allowed
for an Object Identifier (OID). So implementers must make
sure that OIDs of column instances in this table will have
no more than 128 sub-identifiers, otherwise they cannot be
accessed using SNMPv1, SNMPv2c, or SNMPv3."
INDEX { mplsL3VpnVrfName,
mplsL3VpnVrfRteInetCidrDestType,
mplsL3VpnVrfRteInetCidrDest,
mplsL3VpnVrfRteInetCidrPfxLen,
mplsL3VpnVrfRteInetCidrPolicy,
mplsL3VpnVrfRteInetCidrNHopType,
mplsL3VpnVrfRteInetCidrNextHop
}
::= { mplsL3VpnVrfRteTable 1 }
MplsL3VpnVrfRteEntry ::= SEQUENCE {
mplsL3VpnVrfRteInetCidrDestType InetAddressType,
mplsL3VpnVrfRteInetCidrDest InetAddress,
mplsL3VpnVrfRteInetCidrPfxLen InetAddressPrefixLength,
mplsL3VpnVrfRteInetCidrPolicy OBJECT IDENTIFIER,
mplsL3VpnVrfRteInetCidrNHopType InetAddressType,
mplsL3VpnVrfRteInetCidrNextHop InetAddress,
mplsL3VpnVrfRteInetCidrIfIndex InterfaceIndexOrZero,
mplsL3VpnVrfRteInetCidrType INTEGER,
mplsL3VpnVrfRteInetCidrProto IANAipRouteProtocol,
mplsL3VpnVrfRteInetCidrAge Gauge32,
mplsL3VpnVrfRteInetCidrNextHopAS InetAutonomousSystemNumber,
mplsL3VpnVrfRteInetCidrMetric1 Integer32,
mplsL3VpnVrfRteInetCidrMetric2 Integer32,
mplsL3VpnVrfRteInetCidrMetric3 Integer32,
mplsL3VpnVrfRteInetCidrMetric4 Integer32,
mplsL3VpnVrfRteInetCidrMetric5 Integer32,
mplsL3VpnVrfRteXCPointer MplsIndexType,
mplsL3VpnVrfRteInetCidrStatus RowStatus
}
mplsL3VpnVrfRteInetCidrDestType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of the mplsL3VpnVrfRteInetCidrDest address, as
defined in the InetAddress MIB.
Only those address types that may appear in an actual
routing table are allowed as values of this object."
REFERENCE "RFC4001"
::= { mplsL3VpnVrfRteEntry 1 }
mplsL3VpnVrfRteInetCidrDest OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The destination IP address of this route.
The type of this address is determined by the value of
the mplsL3VpnVrfRteInetCidrDestType object.
The values for the index objects
mplsL3VpnVrfRteInetCidrDest and
mplsL3VpnVrfRteInetCidrPfxLen must be consistent. When
the value of mplsL3VpnVrfRteInetCidrDest is x, then
the bitwise logical-AND of x with the value of the mask
formed from the corresponding index object
mplsL3VpnVrfRteInetCidrPfxLen MUST be
equal to x. If not, then the index pair is not
consistent and an inconsistentName error must be
returned on SET or CREATE requests."
::= { mplsL3VpnVrfRteEntry 2 }
mplsL3VpnVrfRteInetCidrPfxLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength (0..128)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Indicates the number of leading one bits that form the
mask to be logical-ANDed with the destination address
before being compared to the value in the
mplsL3VpnVrfRteInetCidrDest field.
The values for the index objects
mplsL3VpnVrfRteInetCidrDest and
mplsL3VpnVrfRteInetCidrPfxLen must be consistent. When
the value of mplsL3VpnVrfRteInetCidrDest is x, then the
bitwise logical-AND of x with the value of the mask
formed from the corresponding index object
mplsL3VpnVrfRteInetCidrPfxLen MUST be
equal to x. If not, then the index pair is not
consistent and an inconsistentName error must be
returned on SET or CREATE requests."
::= { mplsL3VpnVrfRteEntry 3 }
mplsL3VpnVrfRteInetCidrPolicy OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object is an opaque object without any defined
semantics. Its purpose is to serve as an additional
index that may delineate between multiple entries to
the same destination. The value { 0 0 } shall be used
as the default value for this object."
::= { mplsL3VpnVrfRteEntry 4 }
mplsL3VpnVrfRteInetCidrNHopType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of the mplsL3VpnVrfRteInetCidrNextHop address,
as defined in the InetAddress MIB.
Value should be set to unknown(0) for non-remote
routes.
Only those address types that may appear in an actual
routing table are allowed as values of this object."
REFERENCE "RFC4001"
::= { mplsL3VpnVrfRteEntry 5 }
mplsL3VpnVrfRteInetCidrNextHop OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"On remote routes, the address of the next system en
route. For non-remote routes, a zero-length string.
The type of this address is determined by the value of
the mplsL3VpnVrfRteInetCidrNHopType object."
::= { mplsL3VpnVrfRteEntry 6 }
mplsL3VpnVrfRteInetCidrIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The ifIndex value that identifies the local interface
through which the next hop of this route should be
reached. A value of 0 is valid and represents the
scenario where no interface is specified."
DEFVAL { 0 }
::= { mplsL3VpnVrfRteEntry 7 }
mplsL3VpnVrfRteInetCidrType OBJECT-TYPE
SYNTAX INTEGER {
other (1), -- not specified by this MIB
reject (2), -- route which discards traffic and
-- returns ICMP notification
local (3), -- local interface
remote (4), -- remote destination
blackhole(5) -- route which discards traffic
-- silently
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The type of route. Note that local(3) refers to a
route for which the next hop is the final destination;
remote(4) refers to a route for which the next hop is
not the final destination.
Routes that do not result in traffic forwarding or
rejection should not be displayed even if the
implementation keeps them stored internally.
reject(2) refers to a route that, if matched, discards
the message as unreachable and returns a notification
(e.g., ICMP error) to the message sender. This is used
in some protocols as a means of correctly aggregating
routes.
blackhole(5) refers to a route that, if matched,
discards the message silently."
DEFVAL { other }
::= { mplsL3VpnVrfRteEntry 8 }
mplsL3VpnVrfRteInetCidrProto OBJECT-TYPE
SYNTAX IANAipRouteProtocol
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The routing mechanism via which this route was learned.
Inclusion of values for gateway routing protocols is
not intended to imply that hosts should support those
protocols."
::= { mplsL3VpnVrfRteEntry 9 }
mplsL3VpnVrfRteInetCidrAge OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of seconds since this route was last updated
or otherwise determined to be correct. Note that no
semantics of 'too old' can be implied except through
knowledge of the routing protocol by which the route
was learned."
::= { mplsL3VpnVrfRteEntry 10 }
mplsL3VpnVrfRteInetCidrNextHopAS OBJECT-TYPE
SYNTAX InetAutonomousSystemNumber
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Autonomous System Number of the next hop. The
semantics of this object are determined by the
routing protocol specified in the route's
mplsL3VpnVrfRteInetCidrProto value. When this
object is unknown or not relevant, its value should
be set to zero."
DEFVAL { 0 }
::= { mplsL3VpnVrfRteEntry 11 }
mplsL3VpnVrfRteInetCidrMetric1 OBJECT-TYPE
SYNTAX Integer32 (-1 | 0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The primary routing metric for this route. The
semantics of this metric are determined by the
routing protocol specified in the route's
mplsL3VpnVrfRteInetCidrProto value. If this
metric is not used, its value should be set to
-1."
DEFVAL { -1 }
::= { mplsL3VpnVrfRteEntry 12 }
mplsL3VpnVrfRteInetCidrMetric2 OBJECT-TYPE
SYNTAX Integer32 (-1 | 0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route. The
semantics of this metric are determined by the routing
protocol specified in the route's
mplsL3VpnVrfRteInetCidrProto
value. If this metric is not used, its value should be
set to -1."
DEFVAL { -1 }
::= { mplsL3VpnVrfRteEntry 13 }
mplsL3VpnVrfRteInetCidrMetric3 OBJECT-TYPE
SYNTAX Integer32 (-1 | 0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route. The
semantics of this metric are determined by the routing
protocol specified in the route's
mplsL3VpnVrfRteInetCidrProto
value. If this metric is not used, its value should be
set to -1."
DEFVAL { -1 }
::= { mplsL3VpnVrfRteEntry 14 }
mplsL3VpnVrfRteInetCidrMetric4 OBJECT-TYPE
SYNTAX Integer32 (-1 | 0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route. The
semantics of this metric are determined by the routing
protocol specified in the route's
mplsL3VpnVrfRteInetCidrProto value. If this metric
is not used, its value should be set to -1."
DEFVAL { -1 }
::= { mplsL3VpnVrfRteEntry 15 }
mplsL3VpnVrfRteInetCidrMetric5 OBJECT-TYPE
SYNTAX Integer32 (-1 | 0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An alternate routing metric for this route. The
semantics of this metric are determined by the routing
protocol specified in the route's
mplsL3VpnVrfRteInetCidrProto value. If this metric is
not used, its value should be set to -1."
DEFVAL { -1 }
::= { mplsL3VpnVrfRteEntry 16 }
mplsL3VpnVrfRteXCPointer OBJECT-TYPE
SYNTAX MplsIndexType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Index into mplsXCTable that identifies which cross-
connect entry is associated with this VRF route entry
by containing the mplsXCIndex of that cross-connect entry.
The string containing the single-octet 0x00 indicates that
a label stack is not associated with this route entry. This
can be the case because the label bindings have not yet
been established, or because some change in the agent has
removed them.
When the label stack associated with this VRF route is created,
it MUST establish the associated cross-connect
entry in the mplsXCTable and then set that index to the value
of this object. Changes to the cross-connect object in the
mplsXCTable MUST automatically be reflected in the value of
this object. If this object represents a static routing entry,
then the manager must ensure that this entry is maintained
consistently in the corresponding mplsXCTable as well."
REFERENCE
"RFC 3813 - Multiprotocol Label Switching (MPLS) Label Switching
Router (LSR) Management Information base (MIB), C. Srinivasan,
A. Vishwanathan, and T. Nadeau, June 2004"
::= { mplsL3VpnVrfRteEntry 17 }
mplsL3VpnVrfRteInetCidrStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The row status variable, used according to row
installation and removal conventions.
A row entry cannot be modified when the status is
marked as active(1)."
::= { mplsL3VpnVrfRteEntry 18 }
-- MPLS L3VPN Notifications
mplsL3VpnVrfUp NOTIFICATION-TYPE
OBJECTS { mplsL3VpnIfConfRowStatus,
mplsL3VpnVrfOperStatus
}
STATUS current
DESCRIPTION
"This notification is generated when:
a. No interface is associated with this VRF, and the first
(and only first) interface associated with it has its
ifOperStatus change to up(1).
b. One interface is associated with this VRF, and
the ifOperStatus of this interface changes to up(1).
c. Multiple interfaces are associated with this VRF, and the
ifOperStatus of all interfaces is down(2), and the first
of those interfaces has its ifOperStatus change to up(1)."
::= { mplsL3VpnNotifications 1 }
mplsL3VpnVrfDown NOTIFICATION-TYPE
OBJECTS { mplsL3VpnIfConfRowStatus,
mplsL3VpnVrfOperStatus
}
STATUS current
DESCRIPTION
"This notification is generated when:
a. One interface is associated with this VRF, and
the ifOperStatus of this interface changes from up(1)
to down(2).
b. Multiple interfaces are associated with this VRF, and
the ifOperStatus of all except one of these interfaces is
equal to up(1), and the ifOperStatus of that interface
changes from up(1) to down(2).
c. The last interface with ifOperStatus equal to up(1)
is disassociated from a VRF."
::= { mplsL3VpnNotifications 2 }
mplsL3VpnVrfRouteMidThreshExceeded NOTIFICATION-TYPE
OBJECTS { mplsL3VpnVrfPerfCurrNumRoutes,
mplsL3VpnVrfConfMidRteThresh
}
STATUS current
DESCRIPTION
"This notification is generated when the number of routes
contained by the specified VRF exceeds the value indicated by
mplsL3VpnVrfMidRouteThreshold. A single notification MUST be
generated when this threshold is exceeded, and no other
notifications of this type should be issued until the value
of mplsL3VpnVrfPerfCurrNumRoutes has fallen below that of
mplsL3VpnVrfConfMidRteThresh."
::= { mplsL3VpnNotifications 3 }
mplsL3VpnVrfNumVrfRouteMaxThreshExceeded NOTIFICATION-TYPE
OBJECTS { mplsL3VpnVrfPerfCurrNumRoutes,
mplsL3VpnVrfConfHighRteThresh
}
STATUS current
DESCRIPTION
"This notification is generated when the number of routes
contained by the specified VRF exceeds or attempts to exceed
the maximum allowed value as indicated by
mplsL3VpnVrfMaxRouteThreshold. In cases where
mplsL3VpnVrfConfHighRteThresh is set to the same value
as mplsL3VpnVrfConfMaxRoutes, mplsL3VpnVrfConfHighRteThresh
need not be exceeded; rather, just reached for this notification
to be issued.
Note that mplsL3VpnVrfConfRteMxThrshTime denotes the interval
at which the this notification will be reissued after the
maximum value has been exceeded (or reached if
mplsL3VpnVrfConfMaxRoutes and mplsL3VpnVrfConfHighRteThresh are
equal) and the initial notification has been issued. This value
is intended to prevent continuous generation of notifications by
an agent in the event that routes are continually added to a VRF
after it has reached its maximum value. The default value is 0
minutes. If this value is set to 0, the agent should only issue
a single notification at the time that the maximum threshold has
been reached, and should not issue any more notifications until
the value of routes has fallen below the configured threshold
value."
::= { mplsL3VpnNotifications 4 }
mplsL3VpnNumVrfSecIllglLblThrshExcd NOTIFICATION-TYPE
OBJECTS { mplsL3VpnVrfSecIllegalLblVltns }
STATUS current
DESCRIPTION
"This notification is generated when the number of illegal
label violations on a VRF as indicated by
mplsL3VpnVrfSecIllegalLblVltns has exceeded
mplsL3VpnIllLblRcvThrsh. The threshold is not
included in the varbind here because the value of
mplsL3VpnVrfSecIllegalLblVltns should be one greater than
the threshold at the time this notification is issued."
::= { mplsL3VpnNotifications 5 }
mplsL3VpnNumVrfRouteMaxThreshCleared NOTIFICATION-TYPE
OBJECTS { mplsL3VpnVrfPerfCurrNumRoutes,
mplsL3VpnVrfConfHighRteThresh
}
STATUS current
DESCRIPTION
"This notification is generated only after the number of routes
contained by the specified VRF exceeds or attempts to exceed
the maximum allowed value as indicated by
mplsVrfMaxRouteThreshold, and then falls below this value. The
emission of this notification informs the operator that the
error condition has been cleared without the operator having to
query the device.
Note that mplsL3VpnVrfConfRteMxThrshTime denotes the interval at
which the mplsNumVrfRouteMaxThreshExceeded notification will
be reissued after the maximum value has been exceeded (or
reached if mplsL3VpnVrfConfMaxRoutes and
mplsL3VpnVrfConfHighRteThresh are equal) and the initial
notification has been issued. Therefore,
the generation of this notification should also be emitted with
this same frequency (assuming that the error condition is
cleared). Specifically, if the error condition is reached and
cleared several times during the period of time specified in
mplsL3VpnVrfConfRteMxThrshTime, only a single notification will
be issued to indicate the first instance of the error condition
as well as the first time the error condition is cleared.
This behavior is intended to prevent continuous generation of
notifications by an agent in the event that routes are
continually added and removed to/from a VRF after it has
reached its maximum value. The default value is 0. If this
value is set to 0, the agent should issue a notification
whenever the maximum threshold has been cleared."
::= { mplsL3VpnNotifications 6 }
-- Conformance Statement
mplsL3VpnGroups
OBJECT IDENTIFIER ::= { mplsL3VpnConformance 1 }
mplsL3VpnCompliances
OBJECT IDENTIFIER ::= { mplsL3VpnConformance 2 }
-- Module Compliance
mplsL3VpnModuleFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Compliance statement for agents that provide full support
for the MPLS-L3VPN-STD-MIB"
MODULE -- this module
MANDATORY-GROUPS { mplsL3VpnScalarGroup,
mplsL3VpnVrfGroup,
mplsL3VpnIfGroup,
mplsL3VpnPerfGroup,
mplsL3VpnVrfRteGroup,
mplsL3VpnVrfRTGroup,
mplsL3VpnSecGroup,
mplsL3VpnNotificationGroup
}
GROUP mplsL3VpnPerfRouteGroup
DESCRIPTION "This group is only mandatory for LSRs that
support tracking the number of routes attempted
to be added to VRFs."
OBJECT mplsL3VpnIfConfRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6)
}
DESCRIPTION "Support for createAndWait and notReady is
not required."
OBJECT mplsL3VpnVrfConfRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6)
}
DESCRIPTION "Support for createAndWait and notReady is
not required."
OBJECT mplsL3VpnVrfRTRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6)
}
DESCRIPTION "Support for createAndWait and notReady is
not required."
::= { mplsL3VpnCompliances 1 }
--
-- ReadOnly Compliance
--
mplsL3VpnModuleReadOnlyCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION "Compliance requirement for implementations that only
provide read-only support for MPLS-L3VPN-STD-MIB.
Such devices can then be monitored but cannot be
configured using this MIB module."
MODULE -- this module
MANDATORY-GROUPS { mplsL3VpnScalarGroup,
mplsL3VpnVrfGroup,
mplsL3VpnIfGroup,
mplsL3VpnPerfGroup,
mplsL3VpnVrfRteGroup,
mplsL3VpnVrfRTGroup,
mplsL3VpnSecGroup,
mplsL3VpnNotificationGroup
}
GROUP mplsL3VpnPerfRouteGroup
DESCRIPTION "This group is only mandatory for LSRs that
support tracking the number of routes attempted to
be added to VRFs."
OBJECT mplsL3VpnIfConfRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfConfRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRTRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnIfVpnClassification
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnIfVpnRouteDistProtocol
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnIfConfStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfVpnId
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfDescription
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRD
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfConfMidRteThresh
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfConfHighRteThresh
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfConfMaxRoutes
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfConfStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRT
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRTDescr
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRTStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrIfIndex
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrNextHopAS
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrMetric1
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrMetric2
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrMetric3
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrMetric4
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrMetric5
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteXCPointer
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsL3VpnVrfRteInetCidrStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
::= { mplsL3VpnCompliances 2 }
-- Units of conformance.
mplsL3VpnScalarGroup OBJECT-GROUP
OBJECTS { mplsL3VpnConfiguredVrfs,
mplsL3VpnActiveVrfs,
mplsL3VpnConnectedInterfaces,
mplsL3VpnNotificationEnable,
mplsL3VpnVrfConfMaxPossRts,
mplsL3VpnVrfConfRteMxThrshTime,
mplsL3VpnIllLblRcvThrsh
}
STATUS current
DESCRIPTION
"Collection of scalar objects required for MPLS VPN
management."
::= { mplsL3VpnGroups 1 }
mplsL3VpnVrfGroup OBJECT-GROUP
OBJECTS { mplsL3VpnVrfVpnId,
mplsL3VpnVrfDescription,
mplsL3VpnVrfRD,
mplsL3VpnVrfCreationTime,
mplsL3VpnVrfOperStatus,
mplsL3VpnVrfActiveInterfaces,
mplsL3VpnVrfAssociatedInterfaces,
mplsL3VpnVrfConfMidRteThresh,
mplsL3VpnVrfConfHighRteThresh,
mplsL3VpnVrfConfMaxRoutes,
mplsL3VpnVrfConfLastChanged,
mplsL3VpnVrfConfRowStatus,
mplsL3VpnVrfConfAdminStatus,
mplsL3VpnVrfConfStorageType
}
STATUS current
DESCRIPTION
"Collection of objects needed for MPLS VPN VRF
management."
::= { mplsL3VpnGroups 2 }
mplsL3VpnIfGroup OBJECT-GROUP
OBJECTS { mplsL3VpnIfVpnClassification,
mplsL3VpnIfVpnRouteDistProtocol,
mplsL3VpnIfConfStorageType,
mplsL3VpnIfConfRowStatus
}
STATUS current
DESCRIPTION
"Collection of objects needed for MPLS VPN interface
management."
::= { mplsL3VpnGroups 3 }
mplsL3VpnPerfGroup OBJECT-GROUP
OBJECTS { mplsL3VpnVrfPerfRoutesAdded,
mplsL3VpnVrfPerfRoutesDeleted,
mplsL3VpnVrfPerfCurrNumRoutes
}
STATUS current
DESCRIPTION
"Collection of objects needed for MPLS VPN
performance information."
::= { mplsL3VpnGroups 4 }
mplsL3VpnPerfRouteGroup OBJECT-GROUP
OBJECTS { mplsL3VpnVrfPerfRoutesDropped,
mplsL3VpnVrfPerfDiscTime
}
STATUS current
DESCRIPTION
"Collection of objects needed to track MPLS VPN
routing table dropped routes."
::= { mplsL3VpnGroups 5 }
mplsL3VpnSecGroup OBJECT-GROUP
OBJECTS { mplsL3VpnVrfSecIllegalLblVltns,
mplsL3VpnVrfSecDiscontinuityTime }
STATUS current
DESCRIPTION
"Collection of objects needed for MPLS VPN
security-related information."
::= { mplsL3VpnGroups 7 }
mplsL3VpnVrfRteGroup OBJECT-GROUP
OBJECTS {
mplsL3VpnVrfRteInetCidrIfIndex,
mplsL3VpnVrfRteInetCidrType,
mplsL3VpnVrfRteInetCidrProto,
mplsL3VpnVrfRteInetCidrAge,
mplsL3VpnVrfRteInetCidrNextHopAS,
mplsL3VpnVrfRteInetCidrMetric1,
mplsL3VpnVrfRteInetCidrMetric2,
mplsL3VpnVrfRteInetCidrMetric3,
mplsL3VpnVrfRteInetCidrMetric4,
mplsL3VpnVrfRteInetCidrMetric5,
mplsL3VpnVrfRteXCPointer,
mplsL3VpnVrfRteInetCidrStatus
}
STATUS current
DESCRIPTION
"Objects required for VRF route table management."
::= { mplsL3VpnGroups 8 }
mplsL3VpnVrfRTGroup OBJECT-GROUP
OBJECTS { mplsL3VpnVrfRTDescr,
mplsL3VpnVrfRT,
mplsL3VpnVrfRTRowStatus,
mplsL3VpnVrfRTStorageType
}
STATUS current
DESCRIPTION
"Objects required for VRF route target management."
::= { mplsL3VpnGroups 9 }
mplsL3VpnNotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS { mplsL3VpnVrfUp,
mplsL3VpnVrfDown,
mplsL3VpnVrfRouteMidThreshExceeded,
mplsL3VpnVrfNumVrfRouteMaxThreshExceeded,
mplsL3VpnNumVrfSecIllglLblThrshExcd,
mplsL3VpnNumVrfRouteMaxThreshCleared
}
STATUS current
DESCRIPTION
"Objects required for MPLS VPN notifications."
::= { mplsL3VpnGroups 10 }
END
-- End of MPLS-VPN-MIB
8. Security Considerations
It is clear that these MIB modules are potentially useful for
monitoring of MPLS LSRs supporting L3 MPLS VPN. This MIB module can
also be used for configuration of certain objects, and anything that
can be configured can be incorrectly configured, with potentially
disastrous results.
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 mplsL3VpnVrfRouteTable, mplsL3VpnIfConfTable, and
mplsL3VpnVrfTable tables collectively contain objects that may
be used to provision MPLS VRF interfaces and configuration.
Unauthorized access to objects in these tables could result in
disruption of traffic on the network. This is especially true
if these VRFs have been previously provisioned and are in use.
The use of stronger mechanisms such as SNMPv3 security should be
considered where possible. Specifically, SNMPv3 VACM and USM
MUST be used with any v3 agent that implements this MIB module.
Administrators should consider whether read access to these
objects should be allowed, since read access may be undesirable
under certain circumstances.
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 and/or NOTIFY 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 the mplsL3VpnVrfTable, mplsL3VpnIfConfTable tables collectively
show the VRF interfaces and associated VRF configurations as
well as their linkages to other MPLS-related configuration
and/or performance statistics. Administrators not wishing to
reveal this information should consider these objects
sensitive/vulnerable and take precautions so they are not
revealed.
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 [RFC3410], 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.
9. IANA Considerations
As described in MPLS-TC-STD-MIB [RFC3811], MPLS related standards
track MIB modules should be rooted under the mplsStdMIB subtree.
There is one MPLS-related MIB module contained in this document. The
following subsection requests IANA for a new assignment under the
mplsStdMIB subtree. New assignments can only be made via a Standards
Action as specified in [RFC2434].
9.1. IANA Considerations for MPLS-L3VPN-STD-MIB
The IANA has assigned { mplsStdMIB 11 } to the MPLS-L3VPN-STD-MIB
module specified in this document.
10. Dedication
Steve Brannon passed away suddenly on January 30, 2001. We would
like to dedicate our efforts in this area and this document to his
memory.
11. Acknowledgements
This document has benefited from discussions and input from Bill
Fenner, Gerald Ash, Sumit Mukhopadhyay, Mike Piecuch, and Joan Weiss.
12. References
12.1. Normative References
[RFC2119] Bradner, S., "Key Words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC3811] Nadeau, T. and J. Cucchiara, "Definition of Textual
Conventions and for Multiprotocol Label Switching (MPLS)
Management", RFC 3811, June 2004.
[RFC3031] Rosen, E., Viswanathan, A., and R. Callon, "Multiprotocol
Label Switching Architecture", RFC 3031, January 2001.
[RFC4364] Rosen, E. and Y. Rekhter, "BGP/MPLS IP Virtual Private
Networks (VPNs)", RFC 4364, February 2006.
[RFC2685] Fox B., et al, "Virtual Private Networks Identifier", RFC
2685, September 1999.
[RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An
Architecture for Describing Simple Network Management
Protocol (SNMP) Management Frameworks", STD 62, RFC 3411,
December 2002.
[RFC3813] Srinivasan, C., Viswanathan, A., and T. Nadeau, "MPLS
Multiprotocol Label Switching (MPLS) Label Switch Router
Management Information Base ", RFC 3813, June 2004
[RFC3812] Srinivasan, C., Viswanathan, A., and T. Nadeau,
"Multiprotocol Label Switching (MPLS) Traffic Engineering
(TE) Management Information Base (MIB)", RFC 3812, June
2004.
[RFC2096] Baker, F., "IP Forwarding Table MIB", RFC 2096, January
1997.
[RFC4265] Schliesser, B. and T. Nadeau, "Definition of Textual
Conventions for Virtual Private Network (VPN) Management",
RFC 4265, November 2005.
[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "Textual Conventions for Internet Network
Addresses", RFC 4001, February 2005.
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, June 2000.
[RTPROTO] IANA, "IP Route Protocol MIB",
http://www.iana.org/assignments/ianaiprouteprotocol-mib,
September 2000.
[RFC2578] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M., and S. Waldbusser, "Structure of Management
Information Version 2 (SMIv2)", STD 58, RFC 2578, April
1999.
[RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M., and S. Waldbusser, "Textual Conventions for
SMIv2", STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M., and S. Waldbusser, "Conformance Statements for
SMIv2", STD 58, RFC 2580, April 1999.
12.2. Informative References
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
[RFC3413] Levi, D., Meyer, P., and B. Stewart, "Simple Network
Management Protocol (SNMP) Applications", STD 62, RFC
3413, December 2002.
[RFC2434] Narten, T. and H. Alvestrand., "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 2434,
October 1998.
13. Contributors' Addresses
Luyuan Fang
AT&T
200 Laurel Ave
Middletown, NJ 07748
Phone: +1-732-420-1921
EMail: luyuanfang@att.com
Martin Tatham
British Telecom
BT Adastal Park,
Martlesham Heath,
Ipswich, IP5 3RE
UK
Phone: +44 1473 606349
Fax: +44 1473 606727
EMail: martin.tatham@bt.com
Fabio M. Chiussi
Bell Laboratories,
Lucent Technologies
101 Crawfords Corner Road
Room 4D-521
Holmdel, NJ 07733
Phone: +1-732-949-2407
EMail: fabio@bell-labs.com
Joseph Dube
Avici Systems, Inc.
101 Billerica Avenue
North Billerica, MA 01862
Editors' Addresses
Thomas D. Nadeau
Cisco Systems, Inc.
1414 Massachusetts Ave.
Boxborough, MA 01719
Phone: +1-978-936-1470
EMail: tnadeau@cisco.com
Harmen van der Linde
Cisco Systems, Inc.
1414 Massachusetts Ave.
Boxborough, MA 01719
Phone: +1-732-420-1916
EMail: havander@cisco.com
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