Cisco ASR 9000 Series

PurposeCommand or Action
Example:
RP/0/RSP0/CPU0:router# show isis lsp-log
(Optional) Display IS-IS database log information.show isis database-log [ level { 1 | 2 }]
Example:
RP/0/RSP0/CPU0:router# show isis database-log
level 1
Step 19
Configuring Nonstop Forwarding for IS-IS
This task explains how to configure your router with NSF that allows the Cisco IOS XR software to
resynchronize the IS-IS link-state database with its IS-IS neighbors after a process restart. The process restart
could be due to an:
•
RP failover (for a warm restart)
•
Simple process restart (due to an IS-IS reload or other administrative request to restart the process)
•
IS-IS software upgrade
In all cases, NSF mitigates link flaps and loss of user sessions. This task is optional.
SUMMARY STEPS
1.
configure
2.
router isis instance-id
3.
nsf { cisco | ietf }
4.
nsf interface-expires number
5.
nsf interface-timer seconds
6.
nsf lifetime seconds
7.
commit
8.
show running-config [ command ]
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
300 OL-30423-03
Implementing IS-IS
Configuring Nonstop Forwarding for IS-IS