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

[Hugo <hugoksouza@xxxxxxx>]

Dan,

Unfortunately, Debian based methods would not do much for me.

I can try to experiment with lacp_rate .

So the way I got it working in kernel 2.6.26 was actually this, in 
/etc/modprobe.conf:

install bond0 /sbin/modprobe --ignore-install bonding -o bond0 
mode=balance-alb miimon=100 updelay=0 downdelay=0
install bond1 /sbin/modprobe --ignore-install bonding -o bond1 
mode=802.3ad miimon=100 updelay=0 downdelay=0

Doing the same in 2.6.29, for bond1 (cross over between the 2 servers) 
a single ping would cause kernel panic.
Pings in bond0 (switch) would go on and off every 10 seconds or so...

So...
I will be trying to use similar options to these now in 2.6.29, maybe 
using sysfs ( /sys ) or... maybe rolling back to 2.6.26 and deal with 
other issues that I had with filesystems...

What else?


Thanks,


-----Original Message-----
From: Dan White
Cc: linux-net@xxxxxxxxxxxxxxx
Sent: Tue, Feb 2, 2010 6:25 pm
Subject: Re: How to correctly create multiple bonding interfaces in 
kernel 2.6.29.6


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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