Why not ask the operator why they are pretending this path? Perhaps they have a good explanation that you haven't thought of. Blindly limiting otherwise legal path lengths is not a defensible practice, in my opinion. -mel beckman On Jun 21, 2017, at 1:36 PM, "sthaug@nethelp.no" <sthaug@nethelp.no> wrote:
I see no valid reason for such long AS paths. Time to update filters here. I'm tempted to set the cutoff at 30 - can anybody see a good reason to permit longer AS paths?
Well, as I mentioned in my Net Neutrality filing to the FCC, a TTL of 30 is OK for intra-planet routing, but when you start leaving the big blue marble you will need to allow the packets to live longer.
TTL != AS path length
I can certainly see the use for a TTL of 30. I cannot see the use for an AS path length greater than 30 (especially not when 2 ASes are each repeated 16 times).
Steinar Haug, Nethelp consulting, sthaug@nethelp.no