nanog mailing list archives

Re: AS path weirdness


From: Christian Koch <christian () broknrobot com>
Date: Sun, 22 Mar 2009 10:19:45 -0700

a private asn in (parentheses) indicates a bgp confederation, i would
tend to think that there is some sort of mis-config or software bug in
one of the routers in that path thats leaking it

On Sun, Mar 22, 2009 at 7:51 AM, Jason Lewis <jlewis () packetnexus com> wrote:
I was under the impression that MRT only used brackets for sets.  eg.
[ASNUM]

Thanks for taking a look.

jas

James Aldridge wrote:
Jason Lewis wrote:
I'm not entirely sure what I'm looking at. The reserved AS, 65490
appears in parentheses and I've never seen that in MRT formatted data
and not sure why it's happening.

That would be a single-element AS_SET, I guess.





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