Hello to everyone in the list,
I run small ISP. Currently I use Debian + Quagga Box for my BGP sessions.
It is a single box with tow full feeds (approximately 200K prefixes) 
from tow ISPs and tow sessions from the same ISPs with local prefixes 
(approximately 2,5K prefixes). The same box is doing traffic shaping, 
firewall and so on for DMZ and clients. The clients are only connected 
by Metro Ethernet links.
If I do not describe the current situation well please let me know, I 
will give more details.
I plan to change this setup with OpenBSD + OpenBGP boxes, one for each 
ISP with IBGP between them and third box for firewall and client 
connections, possibly the third box would be duplicated by another box 
with CARP. I am looking for the best redundancy I could get.
However I may be wrong in my plan...
As I am absolute beginner with OpenBSD I would be very happy for any 
ideas, advises or practical examples.
Thank you very much,
Ivo