[94171] in North American Network Operators' Group
4 Byte AS tested
daemon@ATHENA.MIT.EDU (Geoff Huston)
Thu Jan 11 05:34:06 2007
Date: Thu, 11 Jan 2007 21:29:07 +1100
To: nanog@merit.edu
From: Geoff Huston <cidr-report@potaroo.net>
Errors-To: owner-nanog@merit.edu
# bgpctl show rib 203.10.62.0/24
flags: * = Valid, > = Selected, I = via IBGP, A = Announced
origin: i = IGP, e = EGP, ? = Incomplete
flags destination gateway lpref med aspath origin
*> 203.10.62.0/24 147.28.0.1 100 0 0.3130 0.1239
0.4637 0.4637 0.4637 0.4637 0.4637 0.4637 0.1221 1.202 i
George Michaelson, Randy Bush and myself have successfully tested the
implementation of 4Byte AS BGP on a public Internet transit. The
above BGP RIB snapshot was taken at a 4Byte BGP speaker in North
America, showing a transit path across AS 1221, AS 4637, AS 1239 and
AS 3130 , with correct reconstruction of the originating AS at the
other (4Byte AS) end.
The code base used was OpenBGPD, with 4 byte patches that I've added
to the code in the past couple of weeks.
(Patched versions of openbgpd to include 4-byte AS support can be
found at http://www.potaroo.net/tools/bgpd/)
cheers,
Geoff
