nanog mailing list archives

Re: Long AS Path


From: Randy Bush <randy () psg com>
Date: Wed, 21 Jun 2017 21:27:57 +0900

177.23.232.0/24    *[BGP/170] 00:52:40, MED 0, localpref 105 ...
...
I see no valid reason for such long AS paths.

[ assuming it is not the microtik thing ]

the /24 can not be sliced to steer inbound, so they're desperately
trying to push it away with prepend.  of course, their upstreams all
prefer customers, so they keep adding prepends in some vain hope.

randy


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