netdev - Re: [PATCH 2/2] net: netdevice mtu assumptions documentation

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Message-Id: <20070707.230448.51861832.davem@davemloft.net>
Date:	Sat, 07 Jul 2007 23:04:48 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	shemminger@...ux-foundation.org
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 2/2] net: netdevice mtu assumptions documentation

From: Stephen Hemminger <shemminger@...ux-foundation.org>
Date: Fri, 6 Jul 2007 11:31:17 -0700

> Document the expectations about device MTU handling.
> The documentation about oversize packet handling is probably too
> loose.
> 
> IMHO devices should drop oversize packets for robustness,
> but many devices allow it now. For example, if you set mtu to 1200
> bytes, most ether devices will allow a 1500 byte frame in.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...ux-foundation.org>

Applied, thanks Stephen.

I agree that drivers should drop oversized frames, otherwise
setting up PMTU test scenerios is more difficult than it
really needs to be.
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