Sure, it can be done.  The Xilinx 10/100 Ethernet drivers have jumbo
frame support in MontaVista/WindRiver Linux.  As long as both ends are
talking jumbo frames, works just fine.

-Rick

-----Original Message-----
From: linuxppc-embedded-bounces+moleres=3Dxilinx.com@ozlabs.org
[mailto:linuxppc-embedded-bounces+moleres=3Dxilinx.com@ozlabs.org] On
Behalf Of Darcy Watkins
Sent: Monday, March 31, 2008 2:48 PM
To: LinuxPPC-Embedded
Subject: Ethernet Jumbo Frames

Has anyone on this list ever been given a requirement to implement
support for ethernet frames larger than the standard MTU of 1500?  ...

... for normal 10/100 Ethernet?   ... not gigabit.

The application is to support certain encapsulation protocols without
imposing smaller than 1500 byte MTU restrictions on the innermost
protocol.

I have been tasked to investigate this for a system based on PPC405EP.
Can it be done using the IBM EMAC, Linux drivers, etc?

Regards,

Darcy

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