netdev - Re: [PATCH net-next 1/1] ipvlan: Initial check-in of the IPVLAN driver.

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Date:	Tue, 11 Nov 2014 18:29:56 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Cong Wang <cwang@...pensource.com>
Cc:	Hannes Frederic Sowa <hannes@...hat.com>,
	Mahesh Bandewar <maheshb@...gle.com>,
	netdev <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Maciej Zenczykowski <maze@...gle.com>,
	Laurent Chavey <chavey@...gle.com>,
	Tim Hockin <thockin@...gle.com>,
	David Miller <davem@...emloft.net>,
	Brandon Philips <brandon.philips@...eos.com>,
	Pavel Emelianov <xemul@...allels.com>
Subject: Re: [PATCH net-next 1/1] ipvlan: Initial check-in of the IPVLAN
 driver.

On Tue, 2014-11-11 at 16:39 -0800, Cong Wang wrote:

> Sounds like over-kill to have a new device just for not worrying about mac.
> Or you mean our neigh table doesn't scale?

Some environments simply do not allow having multiple MAC, it is not a
linux problem with neigh table.

Linux hosts can be attached to switches with a very strict security
policy : One (or few) mac address per port.

http://en.wikipedia.org/wiki/CAM_Table




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