Message-ID: <3BDC3F24.4D66FA0A@worldnet.fr>
Date: Sun, 28 Oct 2001 18:23:48 +0100
From: Laurent Deniel <deniel@worldnet.fr>
Organization: Home
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To: linux-kernel@vger.kernel.org
Subject: Ethernet NIC dual homing
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Sender: linux-kernel-owner@vger.kernel.org


Hi,

Does someone know if there is some work in the area of NIC dual homing ?
By NIC dual homing, I mean two network devices (e.g. Ethernet) that are
connected to the same IP subnet but only one is active (at IP level) at a 
time. When a faulty condition is detected (e.g. link down or lack of I/O),
the kernel switches to the second NIC. Such a similar feature exists in
Tru64 UNIX (NetRAIN), HP-UX (APA) and Solaris (Sun Cluster pnmd).
What is the best way to handle that in Linux ? I thought about an IP virtual
device that could be mapped on two eternet NIC and some ioctl to switch from
one NIC to another or a generic virtual ethernet driver that could handle two
real ethernet drivers ?

Laurent

PS: please CC to me since I do not read lkml at a regular basis. TIA.
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