[6bone] routing problem

[Nicolas DEFFAYET]

On Mon, 2002-08-12 at 10:31, Ronald.vanderPol@rvdp.org wrote:
> This morning, 6bone routing is working great again :-(
> 
> My packets go all around the world, except where they are supposed to
> go, a couple of kilometers away.
> 
> $ traceroute6 kirk.rvdp.org
> traceroute6 to kirk.rvdp.org (2001:610:508:1001::1) from 2001:6e0:206:1:220:edff
> :fe19:4862, 30 hops max, 12 byte packets

The announce of 2001:610::/35 is bad but 2001:610::/32 is good.
You can check: telnet route-server.ndsoftwarenet.net (IPv6 only)

route-server.ndsoftwarenet.net> show ipv6 bgp 2001:610:508:1001::1
BGP routing table entry for 2001:610::/35
Paths: (2 available, best #1, table Default-IP-Routing-Table)
  Not advertised to any peer
  513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
    3ffe:81f1:0:1::1 from 3ffe:81f1:0:1::1 (213.91.4.3)
      Origin IGP, metric 600, localpref 100, valid, internal,
atomic-aggregate, best
      Community: 65526:502 65526:511 65526:521 65526:900 65526:1000
65526:1500
      Last update: Mon Aug 12 15:17:03 2002

  513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
    3ffe:81f1:0:1::1 from 3ffe:81f1:0:2::1 (213.91.4.3)
      Origin IGP, metric 600, localpref 100, valid, internal,
atomic-aggregate
      Community: 65526:502 65526:511 65526:521 65526:900 65526:1000
65526:1500
      Originator: 213.91.4.3, Cluster list: 62.4.18.114
      Last update: Mon Aug 12 15:17:07 2002

route-server.ndsoftwarenet.net> show ipv6 bgp 2001:610::/32
BGP routing table entry for 2001:610::/32
Paths: (2 available, best #2, table Default-IP-Routing-Table)
  Not advertised to any peer
  2602 1103, (aggregated by 1103 145.145.255.42)
    3ffe:81f1:0:1::2 from 3ffe:81f1:0:1::1 (62.4.18.114)
      Origin IGP, metric 600, localpref 100, valid, internal,
atomic-aggregate
      Community: 65526:502 65526:511 65526:521 65526:900 65526:1000
65526:1500
      Originator: 62.4.18.114, Cluster list: 213.91.4.3
      Last update: Mon Aug 12 13:43:51 2002

  2602 1103, (aggregated by 1103 145.145.255.42)
    3ffe:81f1:0:2::1 from 3ffe:81f1:0:2::1 (62.4.18.114)
    (fe80::260:97ff:fe0c:9803)
      Origin IGP, metric 600, localpref 100, valid, internal,
atomic-aggregate,
best
      Community: 65526:502 65526:511 65526:521 65526:900 65526:1000
65526:1500
      Last update: Mon Aug 12 13:43:48 2002

route-server.ndsoftwarenet.net>

Many routers keep in cache and reannonce 2001:610::/35 that Surfnet
don't announce.

Same problem for a lot of pTLA/sTLA:

http://noc.ndsoftwarenet.com/stats/aspath-tree/history/AMS-IX.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/UNI-C.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/BME-FSZ.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/UUNET-UK.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/UL.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/NETCOM-UK.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/CAIRN.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/35-INTEROP-JP-20020617.html
http://noc.ndsoftwarenet.com/stats/aspath-tree/history/SWISSCOM.html

Best Regards,

Nicolas DEFFAYET