[91913] in North American Network Operators' Group

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Re: BGP unsupported capability code

daemon@ATHENA.MIT.EDU (Mike White)
Mon Aug 21 12:55:06 2006

Date: Mon, 21 Aug 2006 09:54:37 -0700 (PDT)
From: Mike White <mikewhite22@yahoo.com>
To: nanog@nanog.org
Cc: Joe Maimon <jmaimon@ttec.com>
Errors-To: owner-nanog@merit.edu


I recently implemented BGP graceful restart capability in a custom BGP
app and encountered the same notification.  By looking at the
capabilities being advertised by the router, and advertising various
subsets of those capabilities, I narrowed it down to the MPLS
capability.  It turned out the router deemed MPLS capability as a
prerequisite for graceful restart.  Adding the MPLS IPv4 unicast
capability to the OPEN message along with the graceful restart
capability fixed things for me.

Hope this helps.
- Mike

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