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Date:	Fri, 11 Apr 2014 11:30:44 +0900
From:	YOSHIFUJI Hideaki <>
To:	Eric Dumazet <>,
	Hannes Frederic Sowa <>,
	David Miller <>
CC:	Francois WELLENREITER <>,, YOSHIFUJI Hideaki <>
Subject: Re: [PATCH] ipv6: Limit mtu to 65572 bytes

Eric Dumazet wrote:

> We must limit the IPv6 MTU to (65535 + 40) bytes in theory.
> In practice, its better to align to a multiple of 4 for optimal TCP
> performance.

It is a TCP issue.  We should not limit the mtu to 65532+40.
I am for 65535+40. Otherwise, other protocol such as UDP cannot
use full mtu as before.

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