From: Alexander Arsenyev (GU/ETL) (alexander.arsenyev@ericsson.com)
Date: Thu Nov 03 2005 - 07:44:30 GMT-3
<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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