Administrator Guide

Version Description
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series ExaScale.
7.8.1.0 Increased the name string to accept up to 140 characters. Prior to 7.8.1.0, names
are up to 16 characters long.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.1.1.0 Introduced on the E-Series.
Usage
Information
The community list used in the set comm-list delete command must be configured so that each
filter contains only one community. For example, the filter deny 100:12 is acceptable, but the filter
deny 120:13 140:33 results in an error.
If the set comm-list delete command and the set community command are configured in the
same route map sequence, the deletion command (set comm-list delete) is processed before the
insertion command (set community).
Related
Commands
ip community-list — configures community access list.
match community — redistributes routes that match the COMMUNITY attribute.
set community — specifies a COMMUNITY attribute.
set community
Allows you to assign a BGP COMMUNITY attribute.
C9000 Series
Syntax
set community {community-number | local-as | no-advertise | no-export |
none} [additive]
To delete a BGP COMMUNITY attribute assignment, use the no set community {community-
number | local-as | no-advertise | no-export | none} command.
Parameters
community-
number
Enter the community number in AA:NN format where AA is the AS number (2
bytes) and NN is a value specific to that autonomous system.
local-AS Enter the keywords local-AS to drop all routes with the COMMUNITY attribute
of NO_EXPORT_SUBCONFED.
All routes with the NO_EXPORT_SUBCONFED (0xFFFFFF03) community attribute
must not be advertised to external BGP peers.
no-advertise Enter the keywords no-advertise to drop all routes containing the well-known
community attribute of NO_ADVERTISE.
All routes with the NO_ADVERTISE (0xFFFFFF02) community attribute must not
be advertised to other BGP peers.
no-export Enter the keywords no-export to drop all routes containing the well-known
community attribute of NO_EXPORT.
All routes with the NO_EXPORT (0xFFFFFF01) community attribute must not be
advertised outside a BGP confederation boundary.
none Enter the keyword none to remove the community attribute from routes meeting
the route map criteria.
296 Access Control Lists (ACL)