Configuring Is-Is Overload Bit Avoidance - Cisco ASR 9000 Series Routing Configuration Manual

Implementing IS-IS
DETAILED STEPS
Command or Action
Step 1
configure
Step 2 router isis instance-id
Example:
RP/0/RSP0/CPU0:router(config)# router isis isp
Step 3 interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-isis)# interface
GigabitEthernet 0/1/0/3
Step 4
circuit-type { level-1 | level-1-2 | level-2-only }
Example:
RP/0/RSP0/CPU0:router(config-isis-if)# circuit-type
level-1
Step 5
address-family ipv4 unicast
Example:
RP/0/RSP0/CPU0:router(config-isis-if)#
address-family ipv4 unicast
Step 6 ipfrr lfa { level { 1 | 2 }}
Example:
RP/0/RSP0/CPU0:router(config-isis-if-af)# ipfrr lfa
level 1
Step 7 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 8 commit

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
Configuring IS-IS Overload Bit Avoidance
Purpose
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.
Enters interface configuration mode.
(Optional) Configures the type of adjacency.
Specifies the IPv4 address family, and enters router
address family configuration mode.
Specifies the IP fast reroute loop-free alternate
computation on link or node failures.
(Optional) Excludes an interface from the IP fast
reroute loop-free alternate computation.
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