[Ovirt-devel] Re: NIC Bonding and Failover

Darryl L. Pierce dpierce at redhat.com
Thu Sep 11 15:42:08 UTC 2008

+++ Chris Lalancette [11/09/08 17:15 +0200]:
>I'm pretty sure modern Linux allows you to have more than one type of bond
>active at a time.  I have no idea how to do it, though, so you'll have to
>research it.  I'm fine if this is going to be a temporary limitation, but as
>danpb points out, you might want to bond differently on machines with lots of NICs.

You should be able to alias each of the bonding types:

alias storage0 bonding
alias virtnet0 bonding
option storage0 mode=2
option virtnet0 mode=4

This, I believe, will give us the two bonded interfaces with the different
bonding strategies.

>Yes, this question is very appropriate too.  Again, I'm not saying we have to
>support this right now, but we need to be conscious of it.  There are 3 pieces
>at work here (bridges, VLAN's, and bonds), which means there are 9 ways you
>could do things: VLAN's on top of bonds on top of bridges, bridges on top of
>bonds on top of VLAN's, etc.  We have to figure out which combinations are
>completely insane, which are valid and make sense, and then make sure we can
>handle those.  Yes, this is complicated :(.

Oh, now you tell me. :D

Darryl L. Pierce, Sr. Software Engineer
Red Hat, Inc. - http://www.redhat.com/
oVirt - Virtual Machine Management - http://www.ovirt.org/
"What do you care what other people think, Mr. Feynman?"
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