[AusNOG] Old route from PIPE NSW

[Nathan Brookfield]

nathan at bdr04:~$ show ip bgp 122.100.13.0/24
% Network not in table
nathan at bdr04:~$ show ip bgp 122.100.13.0/23
BGP routing table entry for 122.100.12.0/23
Paths: (2 available, best #2, table Default-IP-Routing-Table)
  Advertised to non peer-group peers:
  223.25.112.1 223.25.112.3
  18398 7600 10207 10207 10207
    218.100.2.147 from 218.100.2.62 (218.100.2.62)
      Origin IGP, localpref 100, valid, external
      Last update: Mon Mar  3 03:07:16 2014

  18398 7600 10207 10207 10207
    218.100.2.147 from 218.100.2.1 (218.100.2.1)
      Origin IGP, localpref 100, valid, external, best
      Last update: Mon Mar  3 03:07:16 2014

nathan at bdr04:~$

-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Andrew Jones
Sent: Wednesday, 5 March 2014 12:45 PM
To: Ausnog
Subject: [AusNOG] Old route from PIPE NSW

Hi all,
When tracking down a routing issue today, I discovered a stale route in the routing table on a peering router of ours, learned from PIPE NSW's route servers: 122.100.13.0/24 - it was 44 weeks old and I've lost the exact AS path unfortunately, but it began with "4739 7607 7606 7606 7606".

When I looked, it did not appear in PIPE NSW's route servers' routing tables as seen from their looking glass. Clearing the sessions to the route-servers has resolved the issue and I'm now reaching that subnet via a /23 route which is being advertised.

Is anyone else seeing this route in their tables currently? I'm wondering whether it's my router misbehaving and ignoring some withdraws?
Thanks,
Andrew
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