Inline Set Form
(12:34, 12:56, 12:78)
($as:34, $as:$tag1, 12:78, internet)
The inline form of a community-set also supports parameterization. Each 16-bit portion of the community
may be parameterized. See the
for more information.
RPL provides symbolic names for the standard well-known community values: internet is 0:0, no-export is
65535:65281, no-advertise is 65535:65282, and local-as is 65535is-empty:65283.
RPL also provides a facility for using
wildcards
in community specifications. A wildcard is specified by
inserting an asterisk (*) in place of one of the 16-bit portions of the community specification; the wildcard
indicates that any value for that portion of the community matches. Thus, the following policy matches all
communities in which the autonomous system part of the community is 123:
community-set cset3
123:*
end-set
A community set can either be empty, or contain one or more community values. When used with an empty
community set, the
is-empty
operator will evaluate to TRUE and the
matches-any
and
matches-every
operators will evaluate to FALSE.
extcommunity-set
An extended community-set is analogous to a community-set except that it contains extended community
values instead of regular community values. It also supports named forms and inline forms. There are three
types of extended community sets: cost, soo, and rt.
As with community sets, the inline form supports parameterization within parameterized policies. Either
portion of the extended community value can be parameterized.
Wildcards (*) and regular expressions are allowed for extended community set elements.
Every extended community-set must contain at least one extended community value. Empty extended
community-sets are invalid and rejected.
The following are syntactic examples:
Named Form for Extcommunity-set Cost
A cost set is an extcommunity set used to store cost EIGRP Cost Community type extended community type
communities.
extcommunity-set cost a_cost_set
IGP:1:10
end-set
These options are supported under extended community set Cost:
RP/0/RP0/CPU0:router(config)#
extcommunity-set cost cost_set
RP/0/RP0/CPU0:router(config-ext)#
?
#-remark
Remark beginning with '#'
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
386
Implementing Routing Policy
extcommunity-set