[nsp] eBGP multipath

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Tue Mar 2 10:24:29 EST 2004


> I have some trouble getting multi paths from eBGP into the FIB.
> 
> After I used the "maximum-paths 2" command, I cleared all BGP sessions
> and then I disabled and re-enabled CEF.
> 
> I do get the same subnet from the same AS, but there is only one
> prefered.... 
> 
> Router-A#sho ip route
> -----
> *  17.255.232.0/24  10.0.0.50                  0 1111 2222 701 i 
> *>                  10.0.0.51                  0 1111 3333 701 i 

Note: different AS path (or is this a typo)?

As described in http://www.cisco.com/warp/public/459/25.html#bgpmpath,
in releases which contain the "eiBGP Multipath"-feature, the as-path
must be equal. In earlier releases, only the neighboring as needed to be
equal. as you're using 12.2(15)T, only one path is taken.

	oli



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