Cisco ASR 9000 Series Configuration Manual page 422

Configuring OSPF SPF Prefix Prioritization
DETAILED STEPS
Command or Action
Step 1
configure
Step 2 prefix-set prefix-set name
Example:
RP/0/RSP0/CPU0:router(config)#prefix-set ospf-critical-prefixes
RP/0/RSP0/CPU0:router(config-pfx)#66.0.0.0/16
RP/0/RSP0/CPU0:router(config-pfx)#end-set
Step 3 route-policy route-policy name if destination in prefix-set name then
set spf-priority {critical | high | medium} endif
Example:
RP/0/RSP0/CPU0:router#route-policy ospf-spf-priority
RP/0/RSP0/CPU0:router(config-rpl)#if destination in
ospf-critical-prefixes then
set spf-priority critical
endif
RP/0/RSP0/CPU0:router(config-rpl)#end-policy
Step 4 Use one of these commands:
• router ospf ospf-name
• router ospfv3 ospfv3-name
Example:
RP/0/RSP0/CPU0:router# router ospf 1
Or
RP/0/RSP0/CPU0:router# router ospfv3 1
Step 5 spf prefix-priority route-policy route-policy name
Example:
Or
RP/0/RSP0/CPU0:router(config-ospfv3)#spf prefix-priority
route-policy ospf3-spf-priority
Step 6 commit
Step 7 show rpl route-policy route-policy name detail
Example:
RP/0/RSP0/CPU0:router#show rpl route-policy ospf-spf-priority
detail
prefix-set ospf-critical-prefixes
66.0.0.0/16
end-set
!
route-policy ospf-spf-priority
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
394
Implementing OSPF
Purpose
Configures the prefix set.
Configures route policy and sets OSPF
SPF priority.
Enters Router OSPF configuration
mode.
Configures SPF prefix-priority for the
defined route policy.
Configure the spf
Note
prefix-priority command
under router OSPF.
Displays the set SPF prefix priority.
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