This might help: http://www.nil.com/ipcorner/LoadBalancingBGP/
Ivan Pepelnjak blog.ioshints.info / www.ioshints.info > -----Original Message----- > From: Matthew Melbourne [mailto:[email protected]] > Sent: Friday, February 05, 2010 12:33 PM > To: [email protected] > Subject: [c-nsp] Load-sharing with two links to the same ISP > > Hi, > > What techniques are available to load-share traffic on two links (of > equal bandwidth) to the same ISP (same AS) given that BGP only enters > the best path into the RIB? We could announce our prefixes over both > links, but splitting the preferred path announcements over the two > links, either using MED or ISP communities, but this only really > addresses inbound traffic. More of an issue is trying to load-share > outbound traffic; we assume we'll learn the same set of prefixes over > both links from the same ISP - one technique may be to simple split > the IPv4 address space in half and local-pref accordingly to prefer > one link or the other depending on the destination IP prefix? > > Cheers, > > Matt > > -- > Matthew Melbourne _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
