Re: AS path weirdness

2009-03-23 Thread Andy Davidson
On 21 Mar 2009, at 02:48, 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. This has been observed when a vendor runs 32-bit AS aware code on part of

Re: AS path weirdness

2009-03-22 Thread Christian Koch
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 wrote: > I was under the impression that MRT only used bracket

Re: AS path weirdness

2009-03-22 Thread Jason Lewis
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 >>

Re: AS path weirdness

2009-03-22 Thread James Aldridge
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. > I'm also not clear on why I see 23456 *and* a 32 bit

AS path weirdness

2009-03-20 Thread Jason Lewis
I'm seeing the following in the MRT data from RRC04 at ripe. http://www.ripe.net/projects/ris/rawdata.html http://data.ris.ripe.net/rrc04/2009.03/bview.20090320.2359.gz for reference. I'm not entirely sure what I'm looking at. The reserved AS, 65490 appears in parentheses and I've never seen that