According to http://openvswitch.org/pipermail/dev/2011-December/013598.html
>> - OF1.1 "set ECN" action. The OVS kernel module already supports this. I am trying to trace flow of code for ECN changes and only thing which I find close to it is set_ip_tos() in datapath/actions.c and that also seems to mask ECN bits instead of changing them. Can someone please confirm I am hunting at right place in source code for ECN related kernel changes? Or else please point me in the right direction.
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