[CentOS] True bond howto for Centos 6

[aurfalien]

On May 13, 2012, at 2:27 PM, Mikael Fridh wrote:

> On Sun, May 13, 2012 at 5:45 PM, aurfalien <aurfalien at gmail.com> wrote:
>> Hi all,
>> 
>> Read many posts on the subject.
>> 
>> Using 802.3ad.
>> 
>> Few problems;
>> Cannot ping some hosts on the network, they are all up.
>> Cannot resolve via DNS which is one of the hosts that I cannot ping, internal nor external DNS hosts.
>> Unplugging the NICS and plugging them back in will then not allow pining if the default d=gateway.
>> 
>> When cold booting it somewhat works, some hosts are pingable while others are not.
>> 
>> When restarting the network service via /etc/init.d/network, nothing is pingable.
>> 
>> Here are my configs;
>> 
>> ifcfg-bond0
>> DEVICE=bond0
>> USERCTL=no
>> BOOTPROTO=none
>> ONBOOT=yes
>> IPADDR=10.0.0.10
>> NETMASK=255.255.0.0
>> NETWORK=10.0.0.0
>> TYPE=Unknown
>> IPV6INIT=no
> 
> Note I'm speaking bonding only and not bridging here:
> 
> These days bonding is supposed to be done in the network-script files,
> not modprobe.conf:
> # ifcfg-bond0:
> DEVICE=bond0
> IPADDR=10.0.0.6
> NETMASK=255.255.255.0
> #NETWORK=
> #BROADCAST=
> ONBOOT=yes
> BOOTPROTO=none
> USERCTL=no
> BONDING_OPTS="mode=active-backup primary=em1 arp_interval=2000
> arp_ip_target=10.0.0.1 arp_validate=all num_grat_arp=12
> primary_reselect=failure"
> 
> Adjust accordingly.


Hi Mikael,

I didn't do them in the .conf as its depreciated in Centos 6.

However I did move the miimon etc... lines to my network scripts file and still no dice.

I didn't try your suggestions as it looks too much like a patch, not very clean like it used to be in version 5.

So I basically had done what you suggested but w/o the arp lines.

I'm in no hurry for this although I will keep your suggestions in my notes as I may have an up coming Centos 6 server that absolutely needs binding.

Thanks for the reply.

- aurf