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
At 07:12 PM 10/13/98 -0700, Danny McPherson wrote:
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
At 07:12 PM 10/13/98 -0700, Danny McPherson wrote:
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
-danny
participants (3)
-
Danny McPherson -
I Am Not An Isp -
Paul G. Donner