[CentOS] Bonding modes

nate centos at linuxpowered.net
Wed Jan 13 23:36:15 UTC 2010


Paras pradhan wrote:
> Thanks nate.
>
> Right now I am not concerned with the load balancing. I have few cluster
> nodes and if I run mode1 , then  the failover time may lead to cluster
> timeout. I have not tested it yet but I will do it. So if the failover time
> from active to backup is very small and in miliseconds my cluster can afford
> that and I will stick with mode 0. Is there a way to change this
> time/durartion ?

You can change the polling interval with the miimon option, but
I'm not sure how precise you can get, it does take some time for
the system to register a link failure, if that is infact what
causes the network to fail. Another failure mode is a layer 2
failure which can detected in some cases using the arp monitor.

I think rather than trying to achieve zero loss on the network
with regards to failures you should tune the cluster to be
more tolerant and not raise a fit if the network is down for
a second or two.

nate




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