Install guide

2-6 Release Note
Software Version 2.7.5
C613-10454-00 REV A
The following figure shows valid combinations of action and clause inside a
route map.
Figure 2-1: Example structure of a route map
When to use
route maps
“Applying Filters” on page 2-20 describes in detail how to use route maps, but
this section summarises the uses.
For BGP, you can use route maps when:
■ copying routes from an update message to the RIB, by applying the route
map as the inroutemap on a BGP peer
■ determining which routes to import from other route sources, by applying
the route map to the import entry
■ determining which routes to advertise, by applying the route map as the
outroutemap on a BGP peer
When applied to a BGP peer, route maps can:
■ accept or reject update messages on the basis of origin, community, AS
path, next hop or Multi Exit Discriminator (MED)
■ accept or reject particular routes, by comparing the update message’s
routes with a prefix list
■ alter the attribute values in matching update messages.
Entry 1
Route Map 1
bgp4-rm
action = include
Entry 2
action = exclude
Entry 3
action = include
match Any one of the match parameters
set One or more of the set parameters
match Any one of the match parameters
match Any one of the match parameters