A community is a 32-bit number, configured in the following steps:
Step 1. Use a route map to identify the routes to which a community attribute is to be set.
Step 2. Use the set community statement to set the community value.
Step 3. Use the neighbor send-community statement (or the send-community statement in a policy template) to specify the neighbors to which community attributes are to be sent. Note that without this statement, a router does not forward community attributes to the neighbor.
The value of a community attribute ...
- Chapter 5. Scaling BGP
- from Routing TCP/IP, Volume II: CCIE Professional Development, Second Edition
- Publisher: Cisco Press
- Released: September 2016
how to configure communities
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