[40837] in North American Network Operators' Group
Re: Ethernet NAPs (was Re: Miami ...)
daemon@ATHENA.MIT.EDU (RJ Atkinson)
Thu Aug 23 12:10:22 2001
Message-Id: <5.1.0.14.2.20010823115640.00a941f0@10.30.15.2>
Date: Thu, 23 Aug 2001 11:58:54 -0400
To: miquels@cistron-office.nl (Miquel van Smoorenburg)
From: RJ Atkinson <rja@inet.org>
Cc: nanog@merit.edu
In-Reply-To: <9m36kl$ejn$2@ncc1701.cistron.net>
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Errors-To: owner-nanog-outgoing@merit.edu
At 11:14 23/08/01, Miquel van Smoorenburg wrote:
>On a GigE interface with jumbo frames where the other side on the
>same ethernet might not support jumbo frames that is probably not
>the case. The packet will simply get dropped and the sender will
>never know why it was dropped.
Folks sending anything larger than IEEE standard frame sizes
on any Ethernet need to be sure to re-configure all the equipment
accordingly and test the whole subnet out thoroughly. For now,
there seems to be no substitute for that (and yes, it is
a fair bit of work). As near as I can tell, all switches ship
with IEEE-standard MTU as the default, so require manual operator
reconfiguration to support any larger frame size.
Ran
rja@inet.org
