PurposeCommand or Action
Configures an MPLS TE backup path for a specific interface.
backup-path tunnel-te tunnel-number
Example:
RP/0/RP0/CPU0:router(config-mpls-te)#
backup-path tunnel-te 2
Step 4
Exits the current configuration mode.exit
Example:
RP/0/RP0/CPU0:router(config-mpls-te-if)# exit
Step 5
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.
path-option preference-priority{ dynamic | explicit
{identifier | name explicit-path-name}}
Step 9
Example:
RP/0/RP0/CPU0:router(config-if)# path-option
l explicit name backup-srlg
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
commit—Saves the configuration changes and remains within
the configuration session.
Use the commit or end command.
Step 12
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
299
Implementing MPLS Traffic Engineering
Configuring the Shared Risk Link Groups
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