On Wed, Dec 14, 2011 at 11:21 PM, Dave Whitla <[email protected]> wrote:
> Sheili,
>
> A particular case to be aware of is when combining Linux bridging with 802.1q 
> vlans. Hardware tx checksum offload does not work properly in this scenario, 
> so it is advisable to disable tx checksum offloading in virtual machines 
> which connect to vifs mapped to a vlan or a trunk port to which untagged 
> ports are also bridged. In my personal testing of OVS the same applies.

Again, that's simply not true or, at best, what you're describing is a
generalization from a specific NIC/driver issue that you've seen.
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