[71853] in North American Network Operators' Group
Re: MTU discovery
daemon@ATHENA.MIT.EDU (Jun-ichiro itojun Hagino)
Thu Jun 24 14:05:28 2004
To: haesu@towardex.com
Cc: eddy+public+spam@noc.everquick.net, nanog@merit.edu
In-Reply-To: Your message of "Thu, 24 Jun 2004 13:46:15 -0400"
<20040624174615.GA22746@scylla.towardex.com>
Date: Fri, 25 Jun 2004 03:05:00 +0900 (JST)
From: itojun@itojun.org (Jun-ichiro itojun Hagino)
Errors-To: owner-nanog-outgoing@merit.edu
> no, its not just you. i've had issues with couple customers having problems
> visiting two large sites due to pMTUd breakage. it was discouraging to see
> some fortune100 web sites breaking their filtering too much over the line.
in many cases, those companies put web load-balancing device, and
the device prevents PMTU from working. maybe identify vendor which
ships 'drop all icmp6' and teach them nicely?
itojun
