user manual

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Cisco 7600 Series Router MIB Specifications Guide
OL-4077-07
Chapter 3 Cisco 7600 MIB Specifications
MPLS-VPN-MIB
MPLS-VPN-MIB
The MPLS-VPN-MIB:
• Describes managed objects for modeling a Multiprotocol Label Switching/Border Gateway Protocol
Virtual Private network
• Configures and monitor routes and route targets for each VRF instance on a router
• Facilitates provisioning VPN Routing and Forwarding (VRF) instances on MPLS interfaces
• Measures the performance of MPLS/BGP VPNs
The MIB is based on Revision 05 of the IETF MPLS-VPN-MIB.
MIB Constraints
Table 3-35 lists the constraints that the Cisco 7600 Series router places on objects in the
MPLS-VPN-MIB. For detailed definitions of MIB objects, see the MIB.
• mplsTunnelResourceStorageType Read-only. Value is readOnly(5).
The mplsTunnelTable allows new MPLS tunnels to be created between an MPLS LSR and a remote endpoint and existing
tunnels to be reconfigured or removed. The Cisco 7600 supports point-to-point tunnel segments, although
multi-point-to-point and point-to-multipoint connections are supported by an LSR acting as a cross-connect. Each MPLS
tunnel can have one out-segment originating at an LSR and one in-segment terminating at that LSR. The
mplsTunnelTable is enhanced by the mplsTunnelPerfTable which provides several counters to measure the performance
of the MPLS tunnels.
The mplsTunnelResourceTable indicates the resources required for a tunnel. Multiple tunnels can share the same resources
by pointing to the same entry in this table. Tunnels that do not share resources must point to separate entries in this table.
The mplsTunnelHopTable indicates strict or loose hops for an MPLS tunnel defined in mplsTunnelTable, when you establish
the hop using signaling. Multiple tunnels share the same hops by pointing to the same entry in this table. Each row also
has a secondary index, mplsTunnelHopIndex, corresponding to the next hop of this tunnel. The scalar
mplsTunnelMaxHops indicates the maximum number of hops that you can specify on each tunnel supported by this LSR.
The mplsTunnelARHopTable indicates the actual hops crossed by a tunnel as reported by the MPLS signaling protocol
after the tunnel is setup.
There are three notifications in this MIB module. The notifications mplsTunnelUp and mplsTunnelDown indicate that the
value of mplsTunnelOperStatus has transitioned to up(1) or down(2). The notification mplsTunnelRerouted is generated
when a tunnel is rerouted or re-optimized.
Table 3-34 MPLS-TE-MIB Constraints (continued)
MIB Object Notes
Table 3-35 MPLS-VPN-MIB Constraints
MIB Object Notes
mplsNumVrfSecViolationThreshExceeded Not implemented.
mplsVpnVrfSecTable
•
mplsVpnVrfSecIllegalLabelViolations Read-only. Always 0.
• mplsVpnVrfSecIllegalLabelRcvThresh Read-only. Always 0.
mplsVpnVrfTable
•
mplsVpnVrfConfRowStatus Read-only.
• mplsVpnVrfConfStorageType Read-only. Volatile(2).