From: Kevin M. Woods (kev@xxxxxxx)
Date: Fri Jul 07 2000 - 16:08:47 GMT-3
This is for conditional route advertisement. The advertise-map defines
the routes to advertise should the routes defined in the non-exist-map
cease to exist. A generic example:
router bgp 64512
neighbor 10.1.1.1 remote-as 64513
neighbor 10.1.1.1 advertise-map backups non-exist-map monitor
!!
!! These are advertised should 172.16/16 go away
!!
ip prefix-list specifics seq 10 permit 172.16.1.0/24
ip prefix-list specifics seq 10 permit 172.16.6.0/24
ip prefix-list specifics seq 10 permit 172.16.7.0/24
!
ip prefix-list aggregate seq 10 permit 172.16.0.0/16
!
route-map backups permit 10
match ip address prefix-list specifics
!
route-map monitor permit 10
match ip address prefix-list aggregate
!
Kevin
// Hi all,
//
// there is advertise-map and non-exist-map options in the neighbour
// command statement under BGP. Can anyone give the purpose of it
// and example how to use it ? I don't find any help on it on the
// DOC-CD. As per my understanding advertise-map can be used on the
// aggregate-address command.
//
// thanks,
// Vijay
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