Allied Telesis X8100, x908 manual set bgp peer=45.45.45.45 outroutemap=mixed sendcommunity=yes

Examples

add ip routem=mixed entry=1 match prefixlist=com add ip routem=mixed entry=1 set com=89:89

add ip routem=mixed entry=2 match prefixlist=as add ip routem=mixed entry=2 set aspath=34599

set bgp peer=45.45.45.45 outroutemap=mixed sendcommunity=yes

When the route 156.23.4.144/28 is checked on the AlliedWare Plus switch, its ASPath contains 34599.

BGP#show ip bgp 156.23.4.144/28

BGP routing table entry for 156.23.4.144/28

Paths: (1 available, best #1, table Default-IP-Routing-Table) Not advertised to any peer

34568 34599

45.45.45.46 from 45.45.45.46 (45.45.45.46)

Origin incomplete metric 0, localpref 100, valid, external, best Last update: Wed Oct 1 08:54:10 2008

3.On the AlliedWare Plus switch, create an ASPath-list that drops AS paths containing 34599, but allows all others.

ip as-path access-list list1 deny 34599 ip as-path access-list list1 permit .*

4.Create a community-list that includes the community 89:89, among others. ip community-list 78 permit 55:66

ip community-list 78 permit 89:89 ip community-list 78 permit 9999:89

5.Create a route map that drops updates that match this community-list, but allows all other updates.

route-map com deny 1

match community 78 route-map com permit 2

6.Apply both the aspath-list and the route map as in-filters on the neighbor: router bgp 34567

redistribute connected

neighbor 45.45.45.46 remote-as 34568 neighbor 45.45.45.46 route-map com in neighbor 45.45.45.46 filter-list list1 in

Use Route Maps and Other Filters to Filter and Alter BGP and OSPF Routes Page 41