Mark Tinka wrote:
On Tuesday 17 March 2009 12:20:08 am p...@mindfury.net
wrote:
My question is, which is the correct method of
implementing this? Should we be redistributing static
and connected routes on our borders into IGP, and not
using next-hop-self? Or should we not redistribute and
use next-hop-self?
I always recommend setting the NEXT_HOP attribute to 'self'
for all iBGP sessions at the (peering) edge, and using your
IGP to provide reachability to all Loopback addresses in the
network. This scales quite well.
Any NANOGers running an MPLS network and choosing instead to
redistribute the relevant connected routes from the peering edge into
their network (either via IGP or BGP), thereby allowing label switching
all the way to the PE (and therefore out a particular interface)?
Next-hop-self seems to trigger penultimate hop popping, resulting in an
IP lookup on the PE.
pt
