[c-nsp] Separating internal/customer routes into IGP/EGP

[Pekka Savola]

On Thu, 23 Nov 2006, Jee Kay wrote:
>     C1---C3
>    /| \ / |\
> PE1- |  X  | -PE2
>    \| / \ |/
>     C2---C4
>
> Here, PE1 is a peers with C1/C2 and is an RR client of both. PE2 peers
> with C3/C4 and is an RR client of both. However, C3/C4/PE2 never learn
> PE1s routes, and vice versa in the other direction.

This would be exactly the problem you'd see if yum had the same 
cluster-ID for C1/C2 and C3/C4 as C3/C4 would think the received route 
was looped from the same cluster and reject it.  If you've made sure 
this isn't the problem..

Have you checked whether C1/C2 advertise the prefixes, or is it that 
C3/C4 reject the received prefix?  That might give ideas whether the 
issue is in C1/C2 or either of C1/C2 | C3/C4. If the next-hop isn't 
unresolvable, I'd first look at C1/C2 configuration.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings