From: Nigel Taylor (nigel_taylor@xxxxxxxxxxx)
Date: Sun Apr 15 2001 - 12:09:07 GMT-3
Corey,
As far as my own review and practice I don't believe bgp has
any "landmines" in
reference to layer two and multi-point interface in-particular. Remember,
BGP builds tcp
connections so as long as there is a route in the table for the defined
neighbor statement
it should work.
Post the configs...
Nigel..
----- Original Message -----
From: Corey M. Ellis <corey.m.ellis@home.com>
To: CCIE Mailist <ccielab@groupstudy.com>
Sent: Sunday, April 15, 2001 10:48 AM
Subject: BGP trick scenario "Not working"
> Hi all,
>
> I am trying to do a bgp scenario as follows: I have five routers in the
> scenario, four are in AS1 (r6<-->r5<-->r4<-->r1) and AS2 (r2). In AS1 I
> have a frame cloud with r5 as a multipoint hub and r6 and r4 as the spokes
> all in one network. I also have full routes for all networks via OSPF.
>
> I am trying to configure BGP as follows:
> r6<-->r5 in one confederation 6000
> r4<-->r1 in one confederation 6001
>
> r6<-->r2 EBGP connection to AS2
> r1<-->r2 EBGP connection to AS2
>
> Problems, all the neighbors are connected except the neighbor connection
> between r5<-->r4. This connection should connect the confederations. I
> think the reason it won't connect is because r5 is a multipoint interface,
> and the fact that all three routers r6,r5,r4 are in the same network. Is
> this indeed a problem, or should this connection be working. I had
thought
> about tunneling this connection, or I am pretty sure point-to-point
> interfaces will work, but I did want to change the underlying setup to
much.
> I am trying to practice confederations, meds, etc. Since r2 has two
> connections into AS1. Any ideas as to why my connection between
> confederations is not working. I think its due to the multipoint, but I
> want to be sure.
>
> Thanks
>
> Corey M. Ellis "(test in 4 days)" Last minute brush ups
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