North American Network Operators Group
Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: AT&T NYC

  • From: Iljitsch van Beijnum
  • Date: Tue Sep 03 11:30:46 2002 
On Tue, 3 Sep 2002, Jesper Skriver wrote:

> > Links and loopbacks => IGP

> Why on earth does you want your link addresses in your IGP ?

> Sometimes it cannot be avoided, due to bad implementation, but why do
> you need it ?

Routers that learn a route over IBGP need to know where the next hop
address for route from other AS points to. Since this can't be a loopback
address and you typically don't run an IGP on subnets between border
routers in your AS and a remote AS, you need to either set next-hop-self
on all IBGP sessions or redistribute connected in your IGP.

Iljitsch van Beijnum