routes with iBGP

[Arjan Filius]

Hello bird-users,

Running bird 1.2.3-ppa ubuntu 10.04,x64, on 2 hosts, internally connected 
with 2 lines, and running 2 iBGP sessions, both routers have their own 
GlobalTransit provider

the iBGP protocols have no filters on both routers

What is noticed (for example with network 40.0.40.0/21):
router1:
bird> show route 40.0.40.0/21
40.0.40.0/21       via <Transit1_BGPRTR1> on eth5 [Transit1_BGPRTR1_IPv4 2010-06-04 11:26:29] * (100) [AS4249i]
                    via <Transit1_BGPRTR2> on eth5 [Transit1_BGPRTR2_IPv4 2010-06-04 11:26:39] (100) [AS4249i]
bird>

router2:
bird> show route 40.0.40.0/21
40.0.40.0/21       via <gw1_router1> on eth1 [iBGP_IPv4_1 2010-06-08  13:39:27] * (100) [AS4249i]
                    via <gw2_router1> on eth0 [iBGP_IPv4_2 2010-06-08  13:28:18] (100) [AS4249i]
                    via <Transit2_BGPRTR1> on eth5 [Transit1_BGPRTR1_IPv4 
2010-06-04 11:26:30] (100) [AS4249i] bird>

so router1 isn't showing it's route option to a transit on router2 (via 2 
iBGP sessions)

I was expecting to show all routes, but clearly it is not.
I'm not sure if my expection is wrong, or not.

Is this correct, end if yes why?


Regards,

Arjan Filius


-- 
Arjan Filius
mailto:iafilius at xs4all.nl