10Gbe interfaces and Bridges

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I have loaded RHEL 6.1 and configured it for virtualization on a Dell M910. It has a Broadcom 10GbE daughter card installed and sees the device and p7p1 and p7p2. Under ethtool it shows them as 10000 Mb/s. I create a bridge called br0.

 

I create a guest also running RHEL 6.1 and connect its 2nd network interface to the bridge. I only have choices under device model for e1000, ne2k_pci, pcnet, rtl8139 amd virtio. If I select the e1000 device model I get a new network interface called eth1 under the guest machine however ethtool reports it speed as 1000Mb/s. I assume it is because I selected e1000 for the device model.

 

Does anyone know how to a work around to this issue? I lookied into how to add a new device model capable of supporting 10000Mb/s but could not find any documentation.

 

Responses

virtio is going to give you the maximum bandwidth. Did you try with that?

To add to what Sadique said, virtio is the only non-emulated device in the list, it should always be used if the guest OS can support it.

Besides, why are you using 6.1, when 6.2 is out?