[Cialug] NIC Bonding under Linux/Debian

[Nathan C. Smith]

I was following a couple how-tos I found so I'm looking for advice.

I will try pulling the hotplug lines.  Your suggestions look more simple and clean.

Wow, you are bonding a lot of interfaces.

I tried the same config I had only with a static IP and it worked, so John may be right about his order-of-DHCP suggestion.

-Nate

-----Original Message-----
From: cialug-bounces at cialug.org [mailto:cialug-bounces at cialug.org] On Behalf Of Aaron Porter
Sent: Friday, March 26, 2010 12:46 PM
To: Central Iowa Linux Users Group
Subject: Re: [Cialug] NIC Bonding under Linux/Debian

On Thu, Mar 25, 2010 at 8:07 PM, Nathan C. Smith <nathan.smith at ipmvs.com> wrote:
> I'm wondering about some of the directives in the interfaces file, here is an excerpt:
>
> allow-hotplug eth0
> allow-hotplug eth1
> auto bond0
> iface bond0 inet dhcp
> pre-up ifconfig bond0 up
> up ifenslave bond0 eth1 eth0

Ok... I think you can get rid of the hotplug lines. Also, why would
you ifconfig up a device during a pre-up? So you want it up before it
gets configured? I'd expect it to look more like:

auto bond0
iface bond0 inet dhcp
        up ifenslave bond0 eth0 eth1
        down ifenslave -d bond0 eth0 eth1
        post-down rmmod bonding

My live config:

#base interface
auto bond0
iface bond0 inet static
        address 10.10.41.20
        netmask 255.255.255.0
        gateway 10.10.41.254
        pre-up modprobe bonding mode=4 miimon=100 xmit_hash_policy=layer3+4
        up ifenslave bond0 eth0 eth1 eth2 eth3 eth4 eth5
        post-up /usr/local/bin/spread_eth_irq
        down ifenslave -d bond0 eth0 eth1 eth2 eth3 eth4 eth5
        post-down rmmod bonding
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