netdev - Re: stable bonding config

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Message-ID: <CANj2Ebf4f3o+zKMLvqiVGyMegdJiqUzVupkOLuKqmxuaVSTdyg@mail.gmail.com>
Date:	Thu, 12 Jan 2012 21:52:25 -0500
From:	Simon Chen <simonchennj@...il.com>
To:	netdev@...r.kernel.org
Subject: Re: stable bonding config

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

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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