We use multipath setups for our EIGRP and iBGP configurations for our internal routing as well. Although for larger networks iBGP multipath might be of use due to memory limitations on a lot of devices.
Doug Lane wrote: > On Tue, Nov 10, 2009 at 3:50 AM, Matthew Petach <[email protected]> wrote: > >> I've outlawed the use of multihop eBGP for load-sharing here; when we get >> multiple links off the same router to a peer or upstream, they are configured >> with multipath. We've got hundreds of BGP sessions across the network >> configured with multipath on them. >> >> > > Do you use iBGP multipath as well to load-balance between links on > different routers? > > I know eBGP multipath is fairly common, but I wonder how many are > using iBGP multipath as well. I doubt any carriers would support it, > so it's probably only useful for load-balancing outbound traffic. The > problem with eBGP multipath alone is that you might want to terminate > circuits from a given carrier on two different routers for redundancy > reasons, but that precludes any load-balancing with eBGP multipath. > Obviously your network has to be designed with equal-cost paths for > iBGP multipath to be of any value. > > -Doug > > -- Steve King Network Engineer - Liquid Web, Inc. Cisco Certified Network Associate CompTIA Linux+ Certified Professional CompTIA A+ Certified Professional
