Cisco CRS Configuration Guide

SRLG Limitations, on page 202
MPLS TE SRLG Scale Enhancements, on page 203
Configure the MPLS-TE Shared Risk Link Groups: Example, on page 353
Using Explicit Path With Exclude SRLG
Perform this task to use an explicit path with the exclude SRLG option on the static backup tunnel.
SUMMARY STEPS
1.
configure
2.
mpls traffic-eng
3.
interface type interface-path-id
4.
backup-path tunnel-te tunnel-number
5.
exit
6.
exit
7.
interface tunnel-tetunnel-id
8.
ipv4 unnumbered type interface-path-id
9.
path-option preference-priority{ dynamic | explicit {identifier | name explicit-path-name}}
10.
destination ip-address
11.
exit
12.
Use the commit or end command.
13.
show run explicit-path name name
14.
show mpls traffic-eng topology path destination name explicit-path name
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure
Example:
RP/0/RP0/CPU0:router# configure
Step 1
Enters MPLS-TE configuration mode.mpls traffic-eng
Example:
RP/0/RP0/CPU0:router(config)# mpls traffic-eng
Step 2
Enables traffic engineering on a specific interface on the
originating node.
interface type interface-path-id
Example:
RP/0/RP0/CPU0:router(config-mpls-te)# interface
POS 0/6/0/0
Step 3
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
298
Implementing MPLS Traffic Engineering
Configuring the Shared Risk Link Groups

Cisco CRS Specifications

General

Operating System	Cisco IOS XR
Product Type	Core Router
Form Factor	Modular Chassis
Dimensions	Varies by chassis type
Weight	Varies by chassis type
Architecture	Distributed
Switch Fabric	Multi-stage
Interface Support	Ethernet, SONET/SDH, OTN
Interfaces/Ports	Varies by line card
Port Density	Varies by line card
Routing Protocol	BGP, IS-IS, OSPF, MPLS
Management	CLI, SNMP
Power Supply	Redundant, hot-swappable
Cooling	Redundant, Hot-swappable Fan Trays
Supported Protocols	IPv4, IPv6, MPLS
Management Interfaces	Ethernet, console
Security Features	ACLs