Re: [71attendees] 2001:0df8:0:5::6 down?

Tony Tauber <ttauber@t-focus.com> Sat, 15 March 2008 04:03 UTC

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Date: Sat, 15 Mar 2008 00:00:11 -0400
From: Tony Tauber <ttauber@t-focus.com>
To: Jim Martin <jim@wovensystems.com>
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References: <A5C8FFF2-B9CF-48EB-A623-08826A28DAF2@muada.com> <0E5DAFBA-09D6-4443-8078-6185DA8C1574@wovensystems.com>
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Subject: Re: [71attendees] 2001:0df8:0:5::6 down?
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On Fri, Mar 14, 2008 at 10:54:09AM -0400, Jim Martin wrote:
> 	We're seeing two network events at this time. The primary
> 	"100G" link  has gone down and the primary internal services

Just to clarify what happened on the WAN side of things:

Due to a mis-communication about the shutdown plans for the last day
of the meeting, at 10:23 ET, the 100G service was deleted from the
transport system.  Since this was not done gracefully, traffic appears
to have been black-holed for a few minutes until the BGP hold-timer
expired and things failed over to the 10G backup wave on the same fiber.

The NOC crew labored for several minutes more to deal with the sick
DHCP server which, from some of things I was experiencing, had been
getting a bit ill starting earlier in the morning from what I could
see (periodic loss of DHCP service in the RRG room).  

I believe these events are completely coincidental.


Tony


> 	box (unix server) is  having challenges. We've failed over to
> 	the backup links and are  working on either getting the
> 	primary DNS/DHCP working or switched to  backup servers.
> 
> 	Sorry about the outage!
> 
> 	- Jim
> 
> On Mar 14, 2008, at 10:44 AM, Iljitsch van Beijnum wrote:
> 
> > Looks like the first IPv6 DNS resolver 2001:0df8:0:5::6 is down...
> >
> > I'll remove it from my settings now, but for future reference: it's
> > nice to keep the nameservers running at least until the end of the
> > last session.

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