Re: How to correctly create multiple bonding interfaces in kernel 2.6.29.6

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On 02/02/10 15:40 -0500, Hugo wrote:
Folks,

I am currently working with kernel 2.6.29.6-0.16.smp.gcc3.4.x86_64 .
Per this conversation:

[Bonding-devel] [PATCH] bonding: fix multiple module load problem
http://lkml.indiana.edu/hypermail/linux/kernel/0906.1/01121.html

, I would like to know how to correctly create multiple bonding interfaces with different options / modes.

Can anybody help me with that?

I recently upgraded from kernel 2.6.26 which was working fine using something like in modprobe.conf:

install bond0 /sbin/modprobe --ignore-install bonding -o bond0 mode=balance-alb miimon=100 install bond1 /sbin/modprobe --ignore-install bonding -o bond1 mode=balance-rr miimon=100

, unfortunately kernel 2.6.29 does not seem to like these and when I test the bonding interfaces using just a ping, I got a kernel panic.

Also, I have trying several different ways to configure the bonding interface, but it is never stable. Ping will work for 10 seconds, time out for another 0 or so and back and forth.

Here are the bonding options I use (specified in /etc/modules on Debian):
bonding miimon=100 mode=4 lacp_rate=1

This has worked for me on the following kernels:
2.6.18-6-686
2.6.26-2-amd64

I have not tried newer kernels. You can obtain a list of options for
bonding for your newer kernel with 'modinfo bonding'.

Those options work well with my Cisco 3750 switch. Without these options
set, I would only link up at 100meg (on gig interfaces) and/or I would drop
every other packet.

Hope that helps.

An FYI for other Debian users, you can bond like this in
/etc/network/interfaces:

auto bond0
iface bond0 inet static
        address 192.168.1.2
        netmask 255.255.255.0
        gateway 192.168.1.1
        slaves eth0 eth1

(I have no eth0 or eth1 entries interfaces)

--
Dan White
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