Re: [CentOS] oops, or how to bring a datacenter router down with one setting

On Fri, Feb 10, 2012 at 9:25 AM, Bob Hoffman bob@bobhoffman.com wrote:

Nothing at all to do with bonding. Not at all. eth1 to br0 , eth0 to br0....that's all. If that is possible, I see no reason for a bond at all. I just want to make sure if an NIC fails, the other one is still working while I am asleep and not a care in the world.

I suppose it is possible for a NIC to fail, but I can't recall actually ever seeing it. I've seen lots of complicated failover schemes introduce new problems and their own failure modes though, including a bad cable that kept flipping the primary/backup links at approximately the same rate that spanning-tree would let them switch.