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From: "willy tarreau" <wtarreau@yahoo.fr>
To: Laurent Deniel <deniel@worldnet.fr>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Ethernet NIC dual homing
Date: Mon, 29 Oct 2001 23:26:09 +0100 (CET)	[thread overview]
Message-ID: <20011029222609.81860.qmail@web20501.mail.yahoo.com> (raw)
In-Reply-To: <3BDDB51C.4095AF84@worldnet.fr>

> Currently only the link status is used to monitor a
> NIC.
> So it would be nice if an ioctl was available to
> force a NIC switch-over
> (especially in active-backup policy). This could be
> used by a user-space
> daemon in case for instance no traffic is detected.

the 2.4 driver provides a mode which sends ARP packets
to test the link (far more reliable than MII), and the
appropriate ioctl for the NIC switch-over you need. It
is available to user through ifenslave -c bond0 eth0
for example.

> I see that the bonding driver is included in 2.2.18,
> what is its status in 2.4.x ?

well, it works for me each time I download a new
release, but I don't have prod servers on it to test
for a long time, nor have I passed all the intensive
tests that Constantine Gavrilov did when I was working
on 2.2. BTW, the last release (20011026) seems to have
a buggy ifenslave which activates all the NICs flags
(to be confirmed, just seen this today and replaced
with the previous one). If this is confirmed, I'll
mail
Chad about this problem.

If there are still people interested in 2.2, I'll try
to find some time to back-port the switch-over ioctl
from 2.4.

Regards,
Willy


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  parent reply	other threads:[~2001-10-29 22:26 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-29 13:39 willy tarreau
2001-10-29 19:59 ` Laurent Deniel
2001-10-29 22:17   ` Laurent Deniel
2001-10-29 22:32     ` willy tarreau
2001-10-29 22:26   ` willy tarreau [this message]
2001-10-29 22:59     ` Christopher Friesen
2001-10-29 23:07       ` willy tarreau
2001-10-30  2:33       ` Dan Hollis
2001-10-30  2:55         ` Jonathan Lundell
2001-10-30  3:15           ` H. Peter Anvin
2001-10-30  3:30           ` Jonathan Lundell
2001-10-30  4:57             ` Dan Hollis
2001-10-30 15:33             ` Christopher Friesen
2001-10-30  4:55           ` Dan Hollis
  -- strict thread matches above, loose matches on Subject: below --
2001-10-30 11:14 Chemolli Francesco (USI)
2001-10-30 11:05 Chemolli Francesco (USI)
2001-10-30 11:33 ` Alan Cox
     [not found] <Pine.LNX.4.10.10110281727070.5138-100000@coffee.psychology.mcmaster.ca>
2001-10-28 22:42 ` Laurent Deniel
     [not found] <Pine.LNX.4.10.10110281248320.5138-100000@coffee.psychology.mcmaster.ca>
2001-10-28 22:23 ` Laurent Deniel
2001-10-28 17:23 Laurent Deniel
2001-10-29 13:24 ` Martin Eriksson

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