netdev - Re: stable bonding config

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Message-ID: <20120116155755.GF32485@quad.redhat.com>
Date:	Mon, 16 Jan 2012 10:57:55 -0500
From:	Andy Gospodarek <gospo@...hat.com>
To:	Simon Chen <simonchennj@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: stable bonding config

On Thu, Jan 12, 2012 at 09:52:25PM -0500, Simon Chen wrote:
> I am using the following:
> 
> Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)
> ixgbe 3.7.17 driver (latest from intel)
> 
> Thanks.
> -Simon
> 

Use the module option to disable RSC and I think it will work.

> On Thu, Jan 12, 2012 at 9:31 PM, Simon Chen <simonchennj@...il.com> wrote:
> > Hi all,
> >
> > Not sure if this is the right place to ask, but I got very good
> > answers about this topic in the past...
> >
> > I am mostly using Ubuntu 10.10. Each server has dual intel 10G NICs,
> > which I want to bond. I configured the switches to support 802.3ad.
> > Based on this post http://ubuntuforums.org/showthread.php?t=1595177, I
> > configure the server as:
> >
> > /home/simon# cat /etc/modprobe.d/aliases.conf
> > alias bond0 bonding
> > options bonding mode=4 miimon=100 lacp_rate=1 downdelay=200
> > updelay=200 ad_select=1 xmit_hash_policy=1
> >
> > /home/simon# cat /etc/network/interfaces
> > ...
> > auto bond0
> > iface bond0 inet manual
> >        bond-slaves none
> >        bond-mode 4
> >        bond-miimon 100
> >        up /sbin/ifenslave bond0 eth2 eth3
> >        down /sbin/ifenslave bond0 eth2 eth3
> >
> > auto eth2
> > iface eth2 inet manual
> > bond-master bond0
> > bond-primary eth2 eth3
> >
> > auto eth3
> > iface eth3 inet manual
> > bond-master bond0
> > bond-primary eth2 eth3
> >
> > auto bond0.200
> > iface bond0.200 inet static
> >  address ...
> >  vlan_raw_device bond0
> > ==========================
> >
> > However, after a reboot the bonding doesn't work immediately. In particular:
> >
> > /home/simon# cat /proc/net/bonding/bond0
> > ...
> > 802.3ad info
> > LACP rate: fast
> > Aggregator selection policy (ad_select): bandwidth
> > Active Aggregator Info:
> >        Aggregator ID: 3
> >        Number of ports: 2
> >        Actor Key: 33
> >        Partner Key: 19
> >        Partner Mac Address: 00:00:00:00:00:00 <------bonding not working
> > ======================================
> >
> > The only magic to get it work that I know of, is to perform "rmmod
> > ixgbe" "modprobe ixgbe" and then "ifconfig eth2 0.0.0.0 up" "ifconfig
> > eth3 0.0.0.0 up" "ifdown bond0" "ifup bond0".
> >
> > Is there a hassle-free bonding configuration that I can use? Or some
> > trick that I am not aware of?
> >
> > Thanks.
> > -Simon
> --
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