Re: [93attendees] Major Outage Update

Benson Schliesser <bensons@queuefull.net> Thu, 23 July 2015 17:23 UTC

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References: <A2EFA276-4257-40F4-ACA4-FDF8815FAEA6@isc.org> <20150723162932.GA20450@laperouse.bortzmeyer.org>
Date: Thu, 23 Jul 2015 18:33:54 +0200
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From: Benson Schliesser <bensons@queuefull.net>
To: Stephane Bortzmeyer <bortzmeyer+ietf@nic.fr>
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Cc: Jim Martin <jrmii@isc.org>, "93attendees@ietf.org" <93attendees@ietf.org>
Subject: Re: [93attendees] Major Outage Update
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IPv4 DHCP and v6 RA behave differently, and were affected differently by
the config during the switch outage.
-B


On Thursday, July 23, 2015, Stephane Bortzmeyer <bortzmeyer+ietf@nic.fr>
wrote:

> On Thu, Jul 23, 2015 at 06:20:11PM +0200,
>  Jim Martin <jrmii@isc.org <javascript:;>> wrote
>  a message of 60 lines which said:
>
> > We had a catastrophic failure of half of the core switch stack, and
> > the remaining half became very confused. After a power cycle, we
> > migrated all of the links to the edge switches from the dead switch
> > to the good one, and adjusted the configs to account for the
> > changes.
>
> And why a switch failure let IPv6 working but not IPv4? (Just curious,
> thanks for the job, anyway, I know it is demanding and unrewarding.)
>
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