Re: [PATCH] Configurable tap interface MTU

From: Rick Jones
Date: Tue Sep 11 2007 - 13:21:34 EST


Ed Swierk wrote:
This patch makes it possible to change the MTU on a tap interface.
Increasing the MTU beyond the 1500-byte default is useful for
applications that interoperate with Ethernet devices supporting jumbo
frames.

The patch caps the MTU somewhat arbitrarily at 16000 bytes. This is
slightly lower than the value used by the e1000 driver, so it seems
like a safe upper limit.

FWIW the OFED 1.2 bits take the MTU of IPoIB up to 65520 bytes :)

rick jones
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