[6bone] Re: routing concern

[Bill Manning]

 Good plans for moving forward. 


% 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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% ->> >
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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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-- 
--bill