netdev - why is IP_MAX_MTU limited to 65520 bytes

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Message-Id: <1251242740.3169.69.camel@w-sridhar.beaverton.ibm.com>
Date:	Tue, 25 Aug 2009 16:25:40 -0700
From:	Sridhar Samudrala <sri@...ibm.com>
To:	netdev <netdev@...r.kernel.org>
Subject: why is IP_MAX_MTU limited to 65520 bytes

Any reason why the maximum IP payload is limited to IP_MAX_MTU(0xFFF0) bytes
instead of the maximum possible value of 0xFFFF

Thanks
Sridhar

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