Configuring An Mpls Traffic Engineering Interarea Tunneling - Cisco NCS 5500 Series Configuration Manual

Implementing MPLS Traffic Engineering
Auto-Tunnel mesh configuration minimizes the initial configuration of the network. You can configure tunnel
properties template and mesh-groups or destination-lists on TE LSRs that further creates full mesh of TE
tunnels between those LSRs. It eliminates the need to reconfigure each existing TE LSR in order to establish
a full mesh of TE tunnels whenever a new TE LSR is added in the network.
Configuration Example
This example configures an auto-tunnel mesh group and specifies the attributes for the tunnels in the
mesh-group.
RP/0/RP0/CPU0:router # configure
RP/0/RP0/CPU0:router(config)# mpls traffic-eng
RP/0/RP0/CPU0:router(config-mpls-te)# auto-tunnel mesh
RP/0/RP0/CPU0:router(config-mpls-te-auto-mesh)# tunnel-id min 1000 max 2000
RP/0/RP0/CPU0:router(config-mpls-te-auto-mesh)# group 10
RP/0/RP0/CPU0:router(config-mpls-te-auto-mesh-group)# attribute-set 10
RP/0/RP0/CPU0:router(config-mpls-te-auto-mesh-group)# destination-list dl-65
RP/0/RP0/CPU0:router(config-mpls-te)# attribute-set auto-mesh 10
RP/0/RP0/CPU0:router(config-mpls-te-attribute-set)# autoroute announce
RP/0/RP0/CPU0:router(config-mpls-te-attribute-set)# auto-bw collect-bw-only
RP/0/RP0/CPU0:router(config)# commit
Verification
Verify the auto-tunnel mesh configuration using the show mpls traffic-eng auto-tunnel mesh command.
RP/0/RP0/CPU0:router# show mpls traffic-eng auto-tunnel mesh
Auto-tunnel Mesh Global Configuration:
Unused removal timeout: 1h 0m 0s
Configured tunnel number range: 1000-2000
Auto-tunnel Mesh Groups Summary:
Mesh Groups count: 1
Mesh Groups Destinations count: 3
Mesh Groups Tunnels count:
3 created, 3 up, 0 down, 0 FRR enabled
Mesh Group: 10 (3 Destinations)
Status: Enabled
Attribute-set: 10
Destination-list: dl-65 (Not a prefix-list)
Recreate timer: Not running
----------------
Displayed 3 tunnels, 3 up, 0 down, 0 FRR enabled
Auto-mesh Cumulative Counters:
Last cleared: Wed Oct
Created:
Connected:
Removed (unused):
Removed (in use):
Range exceeded:

Configuring an MPLS Traffic Engineering Interarea Tunneling

The MPLS TE Interarea Tunneling feature allows you to establish MPLS TE tunnels that span multiple Interior
Gateway Protocol (IGP) areas and levels. This feature removes the restriction that required the tunnel headend
and tailend routers both to be in the same area. The IGP can be either Intermediate System-to-Intermediate
Destination Tunnel ID
-----------
192.168.0.2 1000
192.168.0.3 1001
192.168.0.4 1002
3 12:56:37 2015 (02:39:07 ago)
Total
3
0
0
0
0
MPLS Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x
State Unused timer
------- ------------
up Not running
up Not running
up Not running
Configuring MPLS-TE
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