[ovs-discuss] OVS and TCP checksum offloading

Eder Leão Fernandes ederleaofernandes at gmail.com
Thu Jul 14 22:44:26 UTC 2016


Hi,

Quick question.
How does Open vSwitch handles TCP checksum offloading? Does it recalculates
and rewrites the TCP checksum for every TCP packet?

I am almost sure it does, since it looks like the only explanation to have
TCP sessions working on my mininet setup. (Two hosts with checksum
offloading connected by OVS. I am using iperf to create TCP sessions).
Just asking to confirm if there is not some kind of special handling.

Thanks,
Eder.
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