Re: checking for empty AS_PATH

Scott W Brim <swb@newbridge.com> Fri, 18 July 1997 20:03 UTC

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Date: Fri, 18 Jul 1997 15:25:59 -0400
To: Yakov Rekhter <yakov@cisco.com>
From: Scott W Brim <swb@newbridge.com>
Subject: Re: checking for empty AS_PATH
Cc: bgp@ans.net
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At 11:24 7/18/97 PDT, Yakov Rekhter wrote:
>   If an UPDATE was received from an external peer, and the UPDATE
>   contains non-empty NLRI, the local system checks whether the
>   AS_PATH attribute is empty. If that is the case, then the Error
>   Subcode is set to Malformed AS_PATH.

Alternatively -- or in addition, actually -- in the AS_PATH definition,
have it be "one or more" AS path segments, not just "a sequence".

...Scott

--
Scott Brim, Newbridge Networks Inc.	tel: +1.607.273.5472
<swb@newbridge.com>		fax: +1.607.273.5485