July 2004
Intermediate to advanced
448 pages
10h 7m
English
You can think of communities as a way to tag a route with almost any policy or other information which might be useful in some way. For instance, communities are used, in various applications, to
Tag routes coming from customers that you plan to advertise to peers
Tag backbone routes that you plan to advertise to peers
Tag peer routes or backbone (more-specific) routes that you don't intend to advertise to peers
Indicate which routes belong to a particular virtual private network
Tag routes coming from a given POP (point of presence) or geographic region in a network
Convey the monetary cost of a link to an outside network.
Carry the metrics of other protocols transparently through a virtual ...
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