PurposeCommand or Action
Excludes an interface from fast-reroute
computation.
Do one of the following:
Step 8
•
fast-reroute per-link exclude interface type interface-path-id
{ level { 1 | 2 }}
•
fast-reroute per-prefix exclude interface type
interface-path-id { level { 1 | 2 }}
Example:
RP/0/RSP0/CPU0:router(config-isis-if-af)#fast-reroute
per-link exclude interface Loopback0 level 1
Or
RP/0/RSP0/CPU0:router(config-isis-if-af)#fast-reroute
per-prefix exclude interface POS0/6/0/0 level 2
Configures to include an interface to LFA
candidate in fast-reroute computation.
Do one of the following:
Step 9
•
fast-reroute per-link lfa-candidate interface type
interface-path-id { level { 1 | 2 }}
•
fast-reroute per-prefix lfa-candidate interface type
interface-path-id { level { 1 | 2 }}
Example:
RP/0/RSP0/CPU0:router(config-isis-if-af)#fast-reroute
per-link lfa-candidate interface MgmtEth0/RP0/CPU0/0 level
1
Or
RP/0/RSP0/CPU0:router(config-isis-if-af)#fast-reroute
per-prefix lfa-candidate interface MgmtEth0/RP1/CPU0/0
level 2
commit
Step 10
Configuring IS-IS Overload Bit Avoidance
This task describes how to activate IS-IS overload bit avoidance.
Before You Begin
The IS-IS overload bit avoidance feature is valid only on networks that support the following Cisco IOS XR
features:
•
MPLS
•
IS-IS
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
320 OL-30423-03
Implementing IS-IS
Configuring IS-IS Overload Bit Avoidance
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