Re: Ethernet NIC dual homing

Laurent Deniel
2001-10-29T19:59:39Z

willy tarreau wrote:
>
> Hi Laurent,
>
> > Does someone know if there is some work in the area of NIC
> > dual homing ?
>
> I have implemented this for 2.2 kernel a while ago,
> and Chad Tindel has completed the port to 2.4. Some other
> contributors have added features such as XOR distribution. You can
> take a look at it, kernel 2.4 patches are on :
>
> http://sf.net/projects/bonding/
>
> and 2.2 patches are on :
>
> http://www-miaif.lip6.fr/willy/linux-patches/bonding/
>

Thanks for the pointers.

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.

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

Regards,

Laurent