EXTREME-MPLS-TE-MIB

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Organization: Extreme Networks, Inc.

Last Updated: 2009-07-04

Category: MPLS and Traffic Engineering, Vendor: Extreme Networks

Description: Extreme Networks MIB for MPLS Traffic Engineering extensions, managing TE tunnels and constraint-based path setup on Extreme routers.

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What Is EXTREME-MPLS-TE-MIB?

EXTREME-MPLS-TE-MIB is an Extreme Networks private MIB extending the IETF MPLS Traffic Engineering standard MIB (mplsTeStdMIB) with vendor-specific objects for managing MPLS-TE tunnels and constraint-based path setup on Extreme routing platforms. Although no sample objects were provided, based on its description it would add Extreme-specific tunnel attributes, path/constraint parameters, and possibly tunnel status counters layered on top of the standard TE tunnel tables. It is used to monitor the software/service status of traffic-engineered MPLS tunnels -- administrative/operational state, path selection, and bandwidth reservation -- rather than physical hardware health. It explicitly depends on and extends the IETF MPLS-TE-STD-MIB, reusing its tunnel indexing and structure. It is typically deployed on Extreme Networks core/aggregation routers providing MPLS-TE services in service-provider or large enterprise backbones. Engineers can download the EXTREME-MPLS-TE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in EXTREME-MPLS-TE-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Extreme Networks MPLS-capable routers/switches

Monitoring Examples

No sample objects were provided for this module, so specific table names cannot be confirmed from source; based on the description, a realistic scenario would be polling tunnel status objects (extending the standard mplsTunnelTable) to confirm a traffic-engineered tunnel is up and following its intended constraint-based path, flagging reroutes or tunnel failures.

What Can Be Monitored

MPLS-TE tunnel administrative/operational status
constraint-based path selection
tunnel bandwidth reservation

Imported Objects

From EXTREME-MPLS-MIB

extremeMplsMIB

MODULE-IDENTITY

From MPLS-TE-STD-MIB

mplsTunnelEgressLSRId	OBJECT-TYPE
mplsTunnelIndex	OBJECT-TYPE
mplsTunnelIngressLSRId	OBJECT-TYPE
mplsTunnelInstance	OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
extremeMplsTeMIB	1.3.6.1.4.1.1916.1.37.2			Extreme extensions to mplsTeStdMIB
extremeMplsTeScalars	1.3.6.1.4.1.1916.1.37.2.1
extremeMplsTeObjects	1.3.6.1.4.1.1916.1.37.2.2
extremeMplsTunnelTable	1.3.6.1.4.1.1916.1.37.2.2.1		not-accessible	The mplsTunnelTable (see RFC 3812) allows new MPLS tunnels to be created between an LSR and a remote endpoint, and existing tunnels to be reconfigured or removed. Note that only point-to-point tunnel segments are supported, although multipoint-to-point and point- to-multipoint connections are supported by an LSR acting as a cross-connect. Each MPLS tunnel can thus have one out-segment originating at this LSR and/or one in-segment terminating at this LSR. Extreme Networks MPLS implementation allows tunnel instances with a common endpoint to be grouped at the ingress LSR to provide redundancy. The role of each tunnel in the group must be configured and is indicated by extremeMplsTunnelRedundancyType. The failover to a redundant tunnel is implementation dependent.
extremeMplsTunnelEntry	1.3.6.1.4.1.1916.1.37.2.2.1.1		not-accessible	An entry in this table represents an extension to an MPLS tunnel reported in the mplsTunnelTable (see RFC 3812). An entry can be created by a network administrator or by an SNMP agent as instructed by an MPLS signalling protocol. An entry in this table displays an ingress tunnel only since the tunnel type is a configured value at the local node and is not exchanged by the signalling protocol.
INT mplsTunnelRedundancyType	1.3.6.1.4.1.1916.1.37.2.2.1.1.1	INTEGER	read-write	Identifies the tunnel redundancy type associated with this tunnel instance. A value of primary(1) or secondary(2) MAY be assigned by the network administrator or by an SNMP manager at the time of setting up the tunnel.
INT mplsTunnelRedundancyStatus	1.3.6.1.4.1.1916.1.37.2.2.1.1.2	INTEGER	read-only	Indicates the actual redundancy status of this tunnel. When the status is active, the tunnel is the preferred tunnel in the group.
BIT mplsTunnelTransportStatus	1.3.6.1.4.1.1916.1.37.2.2.1.1.3	Bits	read-write	Indicates the type of traffic the tunnel group can be used for sending. When the allowAllIp(0) bit is set, IP traffic destined for all IPv4 routes will be allowed over any tunnel in the group marked active. When the allowAssignedIpOnly(1) bit is set, IP traffic destined only for IPv4 static routes that have been explicitly configured to use this tunnel group will be allowed. When the allowAllLayer2Vpn(2) bit is set, layer 2 VPN traffic for all layer 2 VPNs will be allowed over any tunnel in the group marked active. When the allowAssignedLayer2VpnOnly(3) bit is set, layer 2 VPN traffic destined only for pseudo-wires that have been explicitly configured to use this tunnel group will be allowed.
extremeMplsTeConformance	1.3.6.1.4.1.1916.1.37.2.3

RFC description

Extreme Networks extensions for MPLS Traffic Engineering tunnel management and redundancy.

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Download EXTREME-MPLS-TE-MIB

What Is EXTREME-MPLS-TE-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description