Cisco ASR 9000 Series Routing Configuration Guide

DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enables IS-IS routing for the specified routing process,
and places the router in router configuration mode. In
this example, the IS-IS instance is called isp.
router isis instance-id
Example:
RP/0/RSP0/CPU0:router(config)# router isis isp
Step 2
Enters interface configuration mode.
interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-isis)# interface
GigabitEthernet 0/1/0/3
Step 3
(Optional) Configures the type of adjacency.circuit-type { level-1 | level-1-2 | level-2-only }
Example:
RP/0/RSP0/CPU0:router(config-isis-if)# circuit-type
level-1
Step 4
Specifies the IPv4 address family, and enters router
address family configuration mode.
address-family ipv4 unicast
Example:
RP/0/RSP0/CPU0:router(config-isis-if)#
address-family ipv4 unicast
Step 5
Specifies the IP fast reroute loop-free alternate
computation on link or node failures.
ipfrr lfa { level { 1 | 2 }}
Example:
RP/0/RSP0/CPU0:router(config-isis-if-af)# ipfrr lfa
level 1
Step 6
(Optional) Excludes an interface from the IP fast
reroute loop-free alternate computation.
ipfrr lfa exclude interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-isis-if-af)#ipfrr lfa
exclude interface POS 0/1/0/4
Step 7
commit
Step 8
Configuring IS-IS Overload Bit Avoidance
This task describes how to activate IS-IS overload bit avoidance.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
389
Implementing IS-IS
Configuring IS-IS Overload Bit Avoidance

Cisco ASR 9000 Series Specifications

General

Brand	Cisco
Model	ASR 9000 Series
Category	Network Router
Language	English