North American Network Operators Group

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Re: 4 Byte AS tested

  • From: MAEMURA Akinori
  • Date: Thu Jan 11 16:25:15 2007

Hi Geoff,

Do you have any plan for another trial longer and notified
so that everyone with various implementations of OLD SPEAKER
can observe this and check if they normally handle a 4-byte
ASN?

Regards,
Akinori



In message <[email protected]>
   "4 Byte AS tested"
   "Geoff Huston <[email protected]>" wrote:

| 
| # 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
| 
| 
| 
|