How does this affect the hierarchy of the network since all iBGP speakers
must be fully meshed?
It'd all have to be flat...
Recall the BGP rule:
one iBGP speaker mustn't advertise routes to another iBGP speaker if they were
learned from a third iBGP speaker.
I'd be interested in hearing from anyone that *really* operates a network of
more than a few routers and is using iBGP as an IGP .. if you can find the
time to send me an email 
-danny
How does this affect the hierarchy of the network since all iBGP speakers
must be fully meshed?It'd all have to be flat...
Recall the BGP rule:
one iBGP speaker mustn't advertise routes to another iBGP speaker if they
were
learned from a third iBGP speaker.
This behavior is easily modified with route reflectors and/or confederations.
Additionally, as someone pointed out, not having a full IBGP mesh does not
necessarily hurt. Simply because a router does not have the full routing
table in no way implies that router does not have global connectivity. How
many people have routers not running BGP at all, more or less full routes?
-danny
TTFN,
patrick
I Am Not An Isp
www.ianai.net
"Think of it as evolution in action." - Niven & Pournelle
How does this affect the hierarchy of the network since all iBGP speakers
must be fully meshed?It'd all have to be flat...
Recall the BGP rule:
one iBGP speaker mustn't advertise routes to another iBGP speaker if they
were
learned from a third iBGP speaker.
I'd be interested in hearing from anyone that *really* operates a network of
more than a few routers and is using iBGP as an IGP .. if you can find the
time to send me an email
Good to see someone understood the point. 
-Donner