Specifications

Implementing IS-IS on Cisco IOS XR Software
Configuration Examples for Implementing IS-IS on Cisco IOS XR Software
RC-216
Cisco IOS XR Routing Configuration Guide
Configuration Examples for Implementing IS-IS on Cisco IOS XR
Software
This section provides the following configuration examples:
• Configuring Single-Topology IS-IS for IPv6: Example, page RC-217
• Configuring Multitopology IS-IS for IPv6: Example, page RC-217
• Redistributing IS-IS Routes Between Multiple Instances: Example, page RC-217
• Tagging Routes: Example, page RC-218
Step 4
circuit-type {level-1 | level-2-only}
Example:
RP/0/RP0/CPU0:router(config-isis-if)#
circuit-type level-1
(Optional) Configures the type of adjacency.
Step 5
address-family ipv4 [unicast]
Example:
RP/0/RP0/CPU0:router(config-isis-if)#
address-family ipv6 unicast
Specifies the IPv4 address family, and enters router address
family configuration mode.
• This example specifies the unicast IPv6 address family.
Step 6
ipfrr lfa {level {1 | 2}}
Example:
RP/0/RP0/CPU0:router(config-isis-if-af)# ipfrr
lfa level 1
Specifies the IP fast reroute loop-free alternate computation
on link or node failures.
Step 7
end
or
commit
Example:
RP/0/RP0/CPU0:router(config-isis-if-af)# end
or
RP/0/RP0/CPU0:router(config-isis-af)# commit
Saves configuration changes.
• When you issue the end command, the system prompts
you to commit changes:
Uncommitted changes found, commit them before
exiting(yes/no/cancel)?
[cancel]:
– Entering yes saves configuration changes to the
running configuration file, exits the configuration
session, and returns the router to EXEC mode.
– Entering no exits the configuration session and
returns the router to EXEC mode without
committing the configuration changes.
– Entering cancel leaves the router in the current
configuration session without exiting or
committing the configuration changes.
• Use the commit command to save the configuration
changes to the running configuration file and remain
within the configuration session.
Command or Action Purpose