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Webcast-Catalyst9k
New Member

Problem with eBGP Multipath

Good Day All,

I have a problem getting eBGP multipath working. I have configured each eBGP peer to have the same local preference, MED, and AS-Path length; but the route is not showing up as a multipath route.

Please find a text file of the show commands and a ppt diag of the setup.

I have enabled eBGP multipath with the maximum-paths command 2 under the bgp process.

Any ideas?

a

1 REPLY
New Member

Re: Problem with eBGP Multipath

Below is a cut and paste from another user who had a similar problem. I think this may be the solution to this problem as well.

Posted by: hritter - Network Consulting Engineer, CISCO SYSTEMS, CCIE - Jul 10, 2005, 9:58am PST

Normally IOS will prevent multiple paths to be used for BGP multi-path if these paths were not advertised by the same AS.

A new know has been introduced by CSCea19918 and lets you do multi-path even if the path are not from the same AS.

The know is "bgp bestpath as-path multipath-relax". Note that this is a hidden command. You still need to configure "maximum-paths 2" if you want the 2 paths to be installed in the RIB.

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