[6bone] Re: routing concern

[Robert J. Rockell]

So being that this was our fault, perhaps I can find some silver lining?

-sprint messed up their configs
-most of 6bone was still loose enough to see it.

While I take full responsibility for this, this is a good learning
experience. If you saw this bad route, you were not filtering correctly (as
sprint was not).

Perhaps a testiment to the work that still needs to be done, if only to
provide a baseline from which we can actually address the issues with
multi-homing, aggregation, etc.. (i.e. we haven't even been sufficiently
responsible to properly show how broken ipv6 is at this point).




Thanks
Rob Rockell
SprintLink International
(+1) 703-689-6322
Sprint IP Services
-----------------------------------------------------------------------

On Tue, 30 Jul 2002, Joop Joosten wrote:

->Folks,
->
->I received 2001:400::/24 from a number of places and I announced it to
->some peers, because of an old filter (shame on me). I think it is fixed
->now.
->
->Joop..
->
->On Tue, 30 Jul 2002, Erik Bos wrote:
->
->> On Tue, Jul 30, 2002 at 10:21:29AM -0400, John Fraizer wrote:
->> > > sl-bb1v6-rly#sho bgp ipv 2001:400::/24
->> > > BGP routing table entry for 2001:400::/24, version 3963
->> > > Paths: (0 available, no best path)
->> > > Flag: 0x820
->> > >   Not advertised to any peer
->> > >
->> >
->> > Looks like someone out there (?513? ?3265? ?4538?) is running broken a BGP
->> > implementation.  I don't see the route direct from 6175 and I trust from
->> > the output above that 6175 isn't announcing it but, (?513? ?3265? ?4538?)
->> > is holding on to the prefix (and redistributing it) for dear life!
->>
->> We, AS3265, receive it from from AS1275:
->>
->> sh bgp ipv6 2001:400::/24
->> BGP routing table entry for 2001:400::/24, version 799862
->> Paths: (1 available, best #1)
->>   Advertised to peer-groups:
->>      XS4ALL-IPv6
->>   1275 5623 9044 10566 6175, (received & used)
->>     3FFE:401:0:1::27:1 from 3FFE:401:0:1::27:1 (128.176.191.66)
->>       Origin IGP, localpref 100, valid, external, best
->>
->> sh bgp ipv6 neighbors 3FFE:401:0:1::27:1 received-routes | begin 2001:400::/24
->> *> 2001:400::/24    3FFE:401:0:1::27:1
->>                                                            0 1275 5623 9044 10566 6175 i
->>
->> The box is running Cisco ios 12.2(8)T2.
->>
->> > Border2-BGP> sh ipv6 bgp 2001:400::/24
->> > BGP routing table entry for 2001:400::/24
->> > Paths: (4 available, best #3, table Default-IP-Routing-Table)
->> >   Advertised to non peer-group peers:
->> >   2001:4f0::1 2001:630:0:f001::1 3ffe:1ced:ff02::2 3ffe:1ced:ff06::2
->> >   3ffe:1ced:ff07::2 3ffe:1ced:ff0a::2 3ffe:2900:d:e::1
->> >   3ffe:31ff:0:ffff::50 3ffe:4005:0:1::26 3ffe:80c0:200:5::36
->> >   3ffe:8160:0:1::c 3ffe:81d0:ffff:2::44
->> >   6435 2549 513 3265 4538 6175
->> >     3ffe:8160:0:1::c from 3ffe:8160:0:1::c (64.65.64.152)
->> >     (fe80::4041:4098)
->> >       Origin IGP, localpref 100, valid, external
->> >       Last update: Tue Jul 30 08:38:19 2002
->> >
->> >   4554 109 513 3265 4538 6175
->> >     3ffe:1ced:ff06::2 from 3ffe:1ced:ff06::2 (192.0.1.1)
->> >     (fe80::c620:401)
->> >       Origin IGP, metric 1, localpref 100, valid, external
->> >       Last update: Tue Jul 30 08:38:37 2002
->> >
->> >   109 513 3265 4538 6175
->> >     3ffe:c00:8023:4::1 from 3ffe:c00:8023:4::1 (128.107.240.254)
->> >       Origin IGP, localpref 100, valid, external, best
->> >       Last update: Tue Jul 30 08:38:35 2002
->> >
->> >   22 109 513 3265 4538 6175
->> >     3ffe:1ced:ff05::2 from 3ffe:1ced:ff05::2 (198.253.28.59)
->> >     (fe80::c6fd:1c3b)
->> >       Origin IGP, localpref 100, valid, external
->> >       Last update: Tue Jul 30 08:38:42 2002
->> >
->> >
->> >
->> > ---
->> > John Fraizer              | High-Security Datacenter Services |
->> > EnterZone, Inc            | Dedicated circuits 64k - 155M OC3 |
->> > http://www.enterzone.net/ | Virtual, Dedicated, Colocation    |
->> >
->> >
->> > _______________________________________________
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->> > 6bone@mailman.isi.edu
->> > http://mailman.isi.edu/mailman/listinfo/6bone
->> >
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->>
->
->
-> +-----------------------------------------------------------------------+
-> |     Joop Joosten, IT Division, CERN, 1211 Geneva 23, Switzerland      |
-> |Tel: +4122 767 3361;  Fax: +4122 767 7155;  Email: Joop.Joosten@cern.ch|
-> +-----------------------------------------------------------------------+
->
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