Cisco ASR 9000 Series Routing Configuration Guide

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 5.3.x
368
Implementing IS-IS
Configuring Nonstop Forwarding for IS-IS

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model