Hi, I am confused by the realization of port mod. I find that these is a function named *handle_flow_mod* in ofproto/ofproto.c to deal with the PORT_MOD message. In this funciton, it will call a function named *update_port_config. *My question is after it finished the port mod in userspace, how can kernel part know? Indeed, I find a function named *port_reconfigured, *but what is the detailed realization of port configuration in kernel part.
For example, if I want that no flood packets can pass a specific port, what is the detailed realization in kernel(or datapath) part? I find it really difficult to catch the point. Thanks a lot, Bo
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