Cisco ASR 9000 Series Configuration Guide

1
Configure the extended community sets in the global configuration mode.
RP/0/RSP0/CPU0:router(config)# extcommunity-set rt RT_SET1
RP/0/RSP0/CPU0:router(config-ext)# 1.2.3.4:555,
RP/0/RSP0/CPU0:router(config-ext)# 1234:555
RP/0/RSP0/CPU0:router(config-ext)# end-set
RP/0/RSP0/CPU0:router(config)# extcommunity-set rt RT_SET2
RP/0/RSP0/CPU0:router(config-ext)# 1.1.1.1:777,
RP/0/RSP0/CPU0:router(config-ext)# 1111:777
RP/0/RSP0/CPU0:router(config-ext)# end-set
2
Configure a route policy with wildcards to refer to the extended community sets.
RP/0/RSP0/CPU0:router(config)# route-policy WILDCARD_EXT_COMMUNITY_SET
RP/0/RSP0/CPU0:router(config-rpl)# if extcommunity rt matches-any extcommunity-set* then
pass else drop endif
RP/0/RSP0/CPU0:router(config-rpl)# end-policy
This route policy configuration accepts routes with extended community set values as mentioned in the
two extended community sets, and drops all other non-matching routes.
3
Commit your configuration.
RP/0/RSP0/CPU0:router(config)# commit
This completes the configuration of routing policy with wildcards for extended community sets. For detailed
information on extended community path sets, see extcommunity-set, on page 471.
Use Wildcards for Route Distinguisher Sets
Use the following example to configure a routing policy with wildcards for route distinguisher sets.
1
Configure the route distinguisher sets in the global configuration mode.
RP/0/RSP0/CPU0:router(config)# rd-set rd_set_demo
RP/0/RSP0/CPU0:router(config-rd)# 10.0.0.1/8:77,
RP/0/RSP0/CPU0:router(config-rd)# 10.0.0.2:888,
RP/0/RSP0/CPU0:router(config-rd)# 65000:777
RP/0/RSP0/CPU0:router(config-rd)# end-set
RP/0/RSP0/CPU0:router(config)# rd-set rd_set_demo2
RP/0/RSP0/CPU0:router(config-rd)# 20.0.0.1/7:99,
RP/0/RSP0/CPU0:router(config-rd)# 4784:199
RP/0/RSP0/CPU0:router(config-rd)# end-set
2
Configure a route policy with wildcards to refer to the route distinguisher set.
RP/0/RSP0/CPU0:router(config)# route-policy use_rd_set
RP/0/RSP0/CPU0:router(config-rpl)# if rd in rd-set* then set local-preference 100
RP/0/RSP0/CPU0:router(config-rpl-if)# elseif rd in(10.0.0.2:888, 10.0.0.2:999)then set
local-preference 300
RP/0/RSP0/CPU0:router(config-rpl-elseif)# endif
RP/0/RSP0/CPU0:router(config-rpl)# end-policy
3
Commit your configuration.
RP/0/RSP0/CPU0:router(config)# commit
4
(Optional) Verify your configuration.
RP/0/RSP0/CPU0:router(config)# show configuration
...
Building configuration...
!! IOS XR Configuration 0.0.0
!
rd-set rd_set_demo
10.0.0.1/8:77,
10.0.0.2:888,
65000:777
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
OL-30423-03 539
Implementing Routing Policy
Wildcards for Route Policy Sets

Cisco ASR 9000 Series Specifications

General

Brand	Cisco
Model	ASR 9000 Series
Category	Network Router
Language	English