Reference Guide

Border Gateway Protocol IPv4 (BGPv4) | 221
To set or modify an extended community attribute, use the set extcommunity {rt | soo} {ASN:NN |
IPADDR:NN} command.
To view the configuration, use the
show config command in the CONFIGURATION
COMMUNITY-LIST or CONFIGURATION EXTCOMMUNITY LIST mode or the
show ip
{community-lists | extcommunity-list} command
in EXEC Privilege mode as shown in the example
below.
FTOS#show ip community-lists
ip community-list standard 1
deny 701:20
deny 702:20
deny 703:20
deny 704:20
deny 705:20
deny 14551:20
deny 701:112
deny 702:112
deny 703:112
deny 704:112
deny 705:112
deny 14551:112
deny 701:667
deny 702:667
deny 703:667
deny 704:666
deny 705:666
deny 14551:666
FTOS#
Use these commands in the following sequence, starting in the CONFIGURATION mode, To use an IP
Community list or Extended Community List to filter routes, you must apply a
match community filter to
a route map and then apply that route map to a BGP neighbor or peer group.
2
{permit | deny} {{rt | soo}
{ASN:NN | IPADDR:N} | regex
REGEX-LINE}
CONFIG-COMMUNITY-
LIST
Two types of extended communities are
supported. Filter routes based on the type of
extended communities they carry using one of
the following keywords:
• rt: Route Target
• soo: Route Origin or Site-of-Origin.
Support for matching extended communities
against regular expression is also supported.
Match against a regular expression using the
following keyword:
•
regexp: regular expression
Step Command Syntax Command Mode Purpose
1
route-map map-name [permit |
deny] [sequence-number]
CONFIGURATION Enter the ROUTE-MAP mode and assign
a name to a route map.
Step Command Syntax Command Mode Purpose