Date: Mon, 12 Nov 2007 14:33:42 -0800 (PST)
Message-Id: <20071112.143342.10809862.davem@davemloft.net>
To: kaber@trash.net
Cc: auke-jan.h.kok@intel.com, joonwpark81@gmail.com, netdev@vger.kernel.org,
       djohnson+linux-kernel@sw.starentnetworks.com,
       linux-kernel@vger.kernel.org, e1000-devel@lists.sourceforge.net
Subject: Re: [PATCH 2/2] [e1000 VLAN] Disable vlan hw accel when
 promiscuous mode
From: David Miller <davem@davemloft.net>
In-Reply-To: <47388B9F.7050308@trash.net>
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	<47388988.1000506@intel.com>
	<47388B9F.7050308@trash.net>
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From: Patrick McHardy <kaber@trash.net>
Date: Mon, 12 Nov 2007 18:21:35 +0100

> Do you really consider that a realistic choice? Who is going to
> remove interfaces that are in use just to see traffic for other
> VLANs? Sniffing specific VLANs can always be done on the VLAN
> device itself.

Change the example to wanting to see traffic on another
physical switch.

How is this any different?

> IMO its more a question of what we want promiscous mode to mean,
> and I tend to agree with Joonwoo that it should receive all packets.

On what LAN?

When you select VLAN, you by definition are asking for non-VLAN
traffic to be elided.  It is like plugging the ethernet cable
into one switch or another.
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