From: Arun Arumuganainar (aarumuga@hotmail.com)
Date: Thu Nov 03 2005 - 08:00:22 GMT-3
Yep ... I have mis-quoted . Loop-detection check is not skipped altogether .
Check condition will be modified so that we do not infer a loop until no of
occurrence is more than the configured value.
Thanks for correcting me Alex .
Thanks and Regards
Arun
----- Original Message -----
From: "Alexander Arsenyev (GU/ETL)" <alexander.arsenyev@ericsson.com>
To: "Arun Arumuganainar" <aarumuga@hotmail.com>; "C&S GroupStudy"
<comserv@groupstudy.com>; "FORUM" <ccielab@groupstudy.com>
Sent: Thursday, November 03, 2005 4:14 PM
Subject: RE: "neighbor allowas-in" command ( SP CCIE)
> <quote>
> With Allowas-in feature turned on this ****AS PATH LOOP DETECTION
CHECK****
> is not performed at all . That is all it does and nothing else !!!
> </quote>
> I believe this is not entirely true. If someone configures "router bgp 1"
with "neighbor 1.1.1.1 allowas-in 1" and
> then two routing updates come in from 1.1.1.1 - first with single
occurence of AS 1 in the AS_PATH and second
> with two occurences of AS 1 in the AS_PATH then only 1st update makes it
into RIB, second gets dropped.
> My 2 UK pence :-)
> HTH
> Cheers
> Alex
>
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