[6bone] routing problem
Jorgensen, Roger
RJorgensen@upctechnology.com
Mon, 12 Aug 2002 21:42:16 +0200
Hi,
We're geting the 2001:610::/35 from many of our peers, and
we're also seing the 2001:610::/32 from even more peers.
Seems like the ghost bug is out there again... this is what
we see, and there are some common as path's in all of them,
BGP routing table entry for 2001:610::/35, version 95785
Paths: (26 available, best #21, table Global-IPv6-Table)
Advertised to non peer-group peers:
2001:6C8:0:FFFD::12 2001:730::1:1 2001:730::1:3 2001:730::1:5
2001:730::1:7
2001:730::1:F 2001:730::1:15 2001:730::1:19 2001:730::1:1D
2001:730::1:21
2001:730::1:23 2001:730::1:29 2001:730::1:2F 2001:730::1:31
2001:730::1:33
2001:730::1:35 2001:730::1:37 2001:730::1:39 2001:730::1:3B
2001:730::1:3F
2001:730::1:41 2001:730:0:2::AAE2 2001:740:0:102::1:0 2001:768:E:24::1
2001:778:11:4::2 2001:7F8:2:800F::2 3FFE:2000:0:40F::22F
3FFE:2501:100::21
3FFE:2900:1:5::1 3FFE:4006:0:3::11 3FFE:4008:1::D 3FFE:81F1:1:2022::1
3FFE:8270:0:1::52
2012 513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
2001:730::1:33 from 2001:730::1:33 (193.224.190.128)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 2012:200 2012:513 6830:60003 6830:60011
2012 513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242), (received-only)
2001:730::1:33 from 2001:730::1:33 (193.224.190.128)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 2012:200 2012:513
790 3274 6175 10109 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242)
2001:730::1:7 from 2001:730::1:7 (193.94.250.58)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
790 3274 6175 10109 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242), (received-only)
2001:730::1:7 from 2001:730::1:7 (193.94.250.58)
Origin IGP, localpref 100, valid, external, atomic-aggregate
559 513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
3FFE:2000:0:40F::22F from 3FFE:2000:0:40F::22F (130.59.32.38)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
559 513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242), (received-only)
3FFE:2000:0:40F::22F from 3FFE:2000:0:40F::22F (130.59.32.38)
Origin IGP, localpref 100, valid, external, atomic-aggregate
3292 109 6435 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242)
2001:6C8:0:FFFD::12 from 2001:6C8:0:FFFD::12 (195.249.8.172)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
3292 109 6435 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242), (received-only)
2001:6C8:0:FFFD::12 from 2001:6C8:0:FFFD::12 (195.249.8.172)
Origin IGP, localpref 100, valid, external, atomic-aggregate
6726 24765 6435 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242)
2001:730::1:19 from 2001:730::1:19 (80.84.236.164)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
6726 24765 6435 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242), (received-only)
2001:730::1:19 from 2001:730::1:19 (80.84.236.164)
Origin IGP, localpref 100, valid, external, atomic-aggregate
8758 24765 4618 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242)
3FFE:4006:0:3::11 from 3FFE:4006:0:3::11 (212.25.27.46)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011 24765:200 24765:800 24765:3500
24765:7005
8758 24765 4618 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242), (received-only)
3FFE:4006:0:3::11 from 3FFE:4006:0:3::11 (212.25.27.46)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 24765:200 24765:800 24765:3500 24765:7005
8973 24765 4618 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242)
3FFE:4008:1::D from 3FFE:4008:1::D (192.16.124.2)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
8973 24765 4618 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242), (received-only)
3FFE:4008:1::D from 3FFE:4008:1::D (192.16.124.2)
Origin IGP, localpref 100, valid, external, atomic-aggregate
6175 10109 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
3FFE:2900:1:5::1 from 3FFE:2900:1:5::1 (208.19.223.30)
Origin IGP, metric 0, localpref 100, valid, external,
atomic-aggregate
Community: 6830:60003 6830:60011
6175 10109 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242), (received-only) 3FFE:2900:1:5::1 from
3FFE:2900:1:5::1 (208.19.223.30)
Origin IGP, metric 0, localpref 100, valid, external,
atomic-aggregate
20834 513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
3FFE:8270:0:1::52 from 3FFE:8270:0:1::52 (80.71.0.50)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
20834 513 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242), (received-only)
3FFE:8270:0:1::52 from 3FFE:8270:0:1::52 (80.71.0.50)
Origin IGP, localpref 100, valid, external, atomic-aggregate
15589 5609 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
2001:730::1:F from 2001:730::1:F (192.168.1.12)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
15589 5609 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242), (received-only)
2001:730::1:F from 2001:730::1:F (192.168.1.12)
Origin IGP, localpref 100, valid, external, atomic-aggregate
5609 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
2001:730::1:9 from 2001:730::1:9 (163.162.170.129)
Origin IGP, localpref 100, valid, external, atomic-aggregate, best
Community: 6830:60003 6830:60011
5609 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242), (received-only)
2001:730::1:9 from 2001:730::1:9 (163.162.170.129)
Origin IGP, localpref 100, valid, external, atomic-aggregate
8379 6435 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242)
2001:768:E:24::1 from 2001:768:E:24::1 (195.143.108.166)
Origin IGP, localpref 100, valid, external, atomic-aggregate
Community: 6830:60003 6830:60011
8379 6435 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by 1103
145.145.249.242), (received-only)
2001:768:E:24::1 from 2001:768:E:24::1 (195.143.108.166)
Origin IGP, localpref 100, valid, external, atomic-aggregate
12337 15589 5609 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242)
2001:730::1:31 from 2001:730::1:31 (62.128.0.14)
Origin IGP, metric 10, localpref 100, valid, external,
atomic-aggregate
Community: 6830:60003 6830:60011 12337:6004
12337 15589 5609 9264 7660 2500 4725 1752 6939 3425 1103, (aggregated by
1103 145.145.249.242), (received-only)
2001:730::1:31 from 2001:730::1:31 (62.128.0.14)
Origin IGP, metric 10, localpref 100, valid, external,
atomic-aggregate
Community: 12337:6004
---
Roger Jorgensen (rjorgensen@upctechnology.com)
System Engineer @ engineering - UPC Technology
handles: ROJO1-6BONE ROJO9-RIPE RJC10-NORID
> -----Original Message-----
> From: Gert Doering [mailto:gert@space.net]
> Sent: Monday, August 12, 2002 9:20 PM
> To: Wim Biemolt
> Cc: 6bone@ISI.EDU
> Subject: Re: [6bone] routing problem
>
>
> Hi,
>
> (I am copying the 6bone mailing list back in, as I think this
> is a pretty
> generic problem - I hope you don't mind)
>
> On Mon, Aug 12, 2002 at 08:56:09PM +0200, Wim Biemolt wrote:
> > ==> From: Gert Doering
> >
> > > To clarify this: this is not an effect of "caching" of
> any sort. It's
> > > just plain buggy router implementations that don't handle
> withdrawals
> > > correctly.
> >
> > So I can only hope that a buggy router implementation also
> means a memory
> > leak or something like that causing them to reboot in the
> real near future?
>
> No. In our case, the /35 staid in the table until I finally
> managed to
> reach someone at Viagenie who cleared some sessions... the BT /35 got
> stuck at Chello, and after clearing their sessions, at Viagenie.
>
> > The only other option I see is switch back to our /35. We
> are using IPv6
> > as production.
>
> So are we...
>
> > Being without any decent IPv6 connectivity for too long
> > won't do our case for IPv6 any good I'm afraid.
>
> No :-((
>
> My recommendation would be to contact all your peers and
> check the different
> paths seen everywhere for "common tails". Then contact the
> AS(es) that you
> see in the first hop of the "common tail" (in your case, as
> far as I could
> see, Chello and this Japanese AS) and ask them to check their
> tables for
> the prefix, and preferably clear some BGP sessions (upstream and/or
> downstream).
>
> In the last case, clearing session at Chello and yelling at Viagenie
> helped... but as I said, this time, Viagenie hasn't been in
> the paths
> (yet?), but a new japanese AS that I haven't seen before.
>
> This takes some time, though (1-2 days). If you can't spend
> that time,
> you'll have to announce both the /32 and the /35, establish contact to
> the suspect ASes, withdraw the /35 again, and hope that you got the
> right ones.
>
> Feel free to contact me to get an "show bgp ipv6 ..." output
> from here.
>
> Gert Doering
> -- NetMaster
> --
> Total number of prefixes smaller than registry allocations:
> 46871 (46631)
>
> SpaceNet AG Mail: netmaster@Space.Net
> Joseph-Dollinger-Bogen 14 Tel : +49-89-32356-0
> 80807 Muenchen Fax : +49-89-32356-299
>
> _______________________________________________
> 6bone mailing list
> 6bone@mailman.isi.edu
> http://mailman.isi.edu/mailman/listinfo/6bone
>