Specifications
Implementing IS-IS on Cisco IOS XR Software
How to Implement IS-IS on Cisco IOS XR Software
RC-186
Cisco IOS XR Routing Configuration Guide
Configuring Multitopology for IS-IS
Multitopology is configured in the same way as the single topology for IPv4 and IPv6 address families. 
However, the single- topology command is omitted, invoking the default multitopology behavior. This 
task is optional.
Step 13
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 14
show isis [instance 
instance-id
] interface 
[
type
instance
] [detail] [level {1 | 2}]
Example:
RP/0/RP0/CPU0:router# show isis interface 
POS0/1/0/1 
(Optional) Displays information about the IS-IS interface.
Step 15
show isis [instance 
instance-id
] topology 
[systemid 
system-id
] [level {1 | 2}] [summary] 
Example:
RP/0/RP0/CPU0:router# show isis topology 
(Optional) Displays a list of connected routers in all areas.
Command or Action Purpose










