I would like to find out if my Ubuntu VM uses tcp-offloading to increase the performance of VXLAN encapsulation. Where can I find this information on my machine?


NIC properties and settings are typically displayed with the ethtool command. In this case the --show-offload option may provide insightful details.

But please bear in mind that you're using a virtual server with (para-) virtualised hardware and the features a virtual network adapter shows not necessarily correspond to what is done by the hypervisor which actually controls the hardware.

  • Great! That was what I was looking for. And thank you for mentioning to treat the output with care. – arne.z May 2 '16 at 23:21

I saw this was answered already, but if you run Wireshark on a machine using TCP offloading, in the packet details it'll say that the checksum is incorrect for everything exiting the machine.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.