Hi,
continuing the implemetation of blackhole in our IXP, I've faced with problem
of
changing next-hop for the route.
Construction looks like
if (net.len = 32 && bgp_community ~ [ (31210,*) ] && bgp_community ~ [ (0,666)
] ) then {
gw = 193.25.181.253;
return true;
}
results in :
bird> show route for 95.67.13.2/32 all
95.67.13.2/32 via 193.25.181.253 on bge0 [COSMONOVA2 2014-04-04 17:59:19
from 193.25.180.133] * (50) [AS34867i]
Type: BGP unicast univ
BGP.origin: IGP
BGP.as_path: 34867
BGP.next_hop: 193.25.180.133
BGP.local_pref: 100
BGP.community: (0,666) (31210,31210)
And when this route is announced to other peer, next-hop remains unchanged:
Peerings.inet.0: 16708 destinations, 50556 routes (16627 active, 0 holddown, 88
hidden)
+ = Active Route, - = Last Active, * = Both
95.67.13.2/32 *[BGP/170] 00:12:14, localpref 100, from 193.25.180.255
AS path: 34867 I
> to 193.25.180.133 via xe-1/0/0.777
As far as I understand from User's Guide, gw is an read-write attribute,
so why it didn't change next-hop?
Thanks in advance!
--
Alexander Shikov
Technical Staff, Digital Telecom IX
Tel.: +380 44 201 14 07
http://dtel-ix.net/
