[97944] in North American Network Operators' Group
Re: iPhone and Network Disruptions ...
daemon@ATHENA.MIT.EDU (Christian Kuhtz)
Sat Jul 21 22:28:46 2007
In-Reply-To: <Pine.SOC.4.61.0707211850440.13066@paixhost.pch.net>
Cc: Sean Donelan <sean@donelan.com>,
North American Network Operators Group <Nanog@merit.edu>
From: Christian Kuhtz <kuhtzch@corp.earthlink.net>
Date: Sat, 21 Jul 2007 22:27:50 -0400
To: Bill Woodcock <woody@pch.net>
Errors-To: owner-nanog@merit.edu
If that hypothesis is true, I'm surprised I haven't seen it in all
the analysis I've done with it. But I don't have any Cisco AP's to
play with either.
On Jul 21, 2007, at 9:52 PM, Bill Woodcock wrote:
>
>>> Cisco, Duke has now come to see the elimination of the problem,
>>> see:
>>> "*Duke Resolves iPhone, Wi-Fi Outage Problems"* at
>>> http://www.eweek.com/article2/0,1895,2161065,00.asp
>>
>> Since neither Apple, Cisco nor Duke seems willing to say exactly
>> what the
>> problem was or what they fixed; not very surprising; it was
>> probably a
>> "Duh" problem unique to Duke's network.
>
> Nope. My understanding is that it's an ARP storm, or something
> similar,
> when the iPhone roams onto a new 802.11 hotspot. Apple hasn't
> issued a
> fix yet, so Cisco had to do an emergency patch for some of their
> larger
> customers. This is just my understanding based on one conversation
> about
> it. I'd feel like an idiot saying "don't quote me" on NANOG,
> but... I
> don't have any special knowledge about it, nor personal experience
> of it,
> so...
>
> -Bill
>
