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mblake4u
Contributor
Contributor

Choosing the correct NIC driver for TSO

Hi,

I've read the following article which says the enhanced vmxnet network adapter should be used for TSO:

http://pubs.vmware.com/vsphere-esxi-4-1-installable/wwhelp/wwhimpl/js/html/wwhelp.htm#href=server_co...

Once that's done I believe you need to enable TSO in the operating system (for example Windows) by enabling it in the NIC advanced settings and then enabling TCP Chimney Offload:

http://support.microsoft.com/kb/951037

My question is, should I use the enhanced vmxnet adapter or the E1000 adapter (which also supports TSO)? My physical NICs are Intel Gigabit 82576 (igb) adapters and Broadcom Gigabit BCM5709 (bnx2).

Cheers

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