Hi,

I'm currently using OpenBGPd as a plain BGP daemon on two servers acting 
as gateways, firewalls, ...

I'm now planning to hook my other sites to the setup.

The other sites can be hooked via some L2 connectivity (let's call it 
dark fiber, or 802.1Q over MPLS).

Is it realistic to hook up those sites (6 sites) in a ring topology

A--B--C--D--E--F
|              |
----------------

considering that
- a BGPd implementation on each site will act as a RR for its neighbors
- ISPs links (where BGP announces are sent) will be available at sites 
A, B and E

The goal is to avoid having to have a full mesh between those sites 
which would of course be more resilient, but also much more expensive 
since those sites are for some distant of some 1000 km.

Thanks

Laurent