[124802] in North American Network Operators' Group
Re: Auto MDI/MDI-X + conference rooms + bored == loop
daemon@ATHENA.MIT.EDU (John Payne)
Mon Apr 5 08:31:46 2010
From: John Payne <john@sackheads.org>
To: Mark Foster <blakjak@blakjak.net>
In-Reply-To: <Pine.LNX.4.64.1003271421470.15072@skyhawk.blakjak.net>
Date: Mon, 5 Apr 2010 08:30:58 -0400
Cc: Chuck Anderson <cra@WPI.EDU>, "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mar 26, 2010, at 9:24 PM, Mark Foster <blakjak@blakjak.net> wrote:
>> or reboot is problematic in many cases. Many systems drop link-
>> state during reboot for a long-enough period that the bridge-port
>> restarts its spanning tree process, making results across reboots
>> consistently bad.
>
> Interesting; Windows tends to bring link up well-prior to the login
> dialogue and ive never seen a dhcp lease fail such that the user has
> had no lease by the time they try to login...
Easy to make happen with 802.1X, default IOS timers and an
unconfigured supplicant
