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Implementing IS-IS on Cisco IOS XR Software
How to Implement IS-IS on Cisco IOS XR Software
RC-311
Cisco IOS XR Routing Configuration Guide
OL-14356-01
Setting the Priority for Adding Prefixes to the RIB
This optional task describes how to set the priority (order) for which specified prefixes are added to the
RIB. The prefixes can be chosen using an access list (ACL), prefix list, or by matching a tag value.
SUMMARY STEPS
1. configure
2. router isis instance-id
3. address-family {ipv4 | ipv6} [unicast | multicast]
4. metric-style wide [transition] [level {1 | 2}]
5. spf prefix-priority [level {1 | 2}] {critical | high | medium} {access-list-name | tag tag}
6. end
or
commit
Step 9
end
or
commit
Example:
RP/0/RP0/CPU0:router(config-isis-if-af)# end
or
RP/0/RP0/CPU0:router(config-isis-if-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.
Step 10
show isis [ipv4 | ipv6 | afi-all] [unicast |
multicast | safi-all] route [detail]
Example:
RP/0/RP0/CPU0:router(config-isis-if-af)# show
isis ipv6 detail
Displays tag information. Verify that all tags are present in
the RIB.
Command or Action Purpose