Cisco CRS Configuration Guide

PurposeCommand or Action
Exits the current configuration mode.exit
Example:
RP/0/RP0/CPU0:router(config-mpls-te)# exit
Step 6
Configures an MPLS-TE tunnel interface.
interface tunnel-tetunnel-id
Example:
RP/0/RP0/CPU0:router(config)# interface
tunnel-te 2
Step 7
Assigns a source address to set up forwarding on the new
tunnel.
ipv4 unnumbered type interface-path-id
Example:
RP/0/RP0/CPU0:router(config-if)# ipv4
unnumbered Loopback0
Step 8
Sets the path option to explicit with a given name (previously
configured) and assigns the path ID. Identifier range is from
1 to 4294967295.
path-option preference-priority{ dynamic | explicit
{identifier | name explicit-path-name}}
Example:
RP/0/RP0/CPU0:router(config-if)# path-option
1 explicit name backup-srlg
Step 9
You can use the dynamic option to dynamically
assign a path.
Note
Assigns a destination address on the new tunnel.
destination ip-address
Step 10
Example:
RP/0/RP0/CPU0:router(config-if)# destination
192.168.92.125
• Destination address is the remote node’s MPLS-TE
router ID.
•
Destination address is the merge point between backup
and protected tunnels.
When you configure TE tunnel with multiple
protection on its path and merge point is the same
node for more than one protection, you must
configure record-route for that tunnel.
Note
Exits the current configuration mode.exit
Example:
Step 11
RP/0/RP0/CPU0:router(config-if)# exit
Enters the explicit path configuration mode. Identifer range
is 1 to 65535.
explicit-path {identifier number [disable | index]}{
name explicit-path-name}
Example:
RP/0/RP0/CPU0:router(config)# explicit-path
name backup-srlg-nodep
Step 12
Specifies the protected link IP address to get SRLGs to be
excluded from the explicit path.
index 1 exclude-srlg 192.168.92.2
Example:
RP/0/RP0/CPU0:router:router(config-if)# index
1 exclude-srlg 192.168.192.2
Step 13
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
302
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