I want to add three 4 bytes new tags to the packet header, so the length of the match table should be increased from the 40 bytes to 56 bytes. Here is the problem, I can capture the flow_mod packet with right information of new tags if I process a flow_mod command to the openvswitch without changing the variable in __len__() in class ofp_match(), but if I change the variable in __len__() to 56, the information of new tags in flow_mod packet I have captured will be wrong. I can't understand why it is. Please be kind to help me, thanks a lot.
------------- Shengru Li School of Information Science and Technology University of Science and Technology of China Email: shengru...@gmail.com
