On Fri, Oct 9, 2009 at 4:11 PM, Cameron Macdonell <cam@xxxxxxxxxxxxxx> wrote: > I'm trying to set up a number of VMs on a host that uses IP over infiniband > to its NFS server. I've been googling, but can't find any mention of > sharing a single IB interface between multiple VMs. Since its IPoIB, I was > wondering if something there is some similar to bridged ethernet that could > work with IB? Any pointers about using IB with KVM would be appreciated. i haven't done this, but.... - bridging is a 'level 2' operation, usually that means Ethernet, but in your case i'ts IB. i don't think you can add an IB device to br0 - your connection to the world is IPoIB, to the VMs is IP over (virtual) Ethernet. so join them at IP level, that is, use routing or NAT. - there's also Ethernet over IB, where you get a (fake) Ethernet device running on your IB wire (at near-IB speeds, hopefully), you could add that to the bridge IOW: i guess you have to choose between routing IP to your IPoIB, or use EoIB, to have 'Ethernet everywhere', including your IB wires. -- Javier -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
