如何从 ofp_stats_port_request 获取 tx_packets

Question

我有这段代码，我想得到 tx_packets 作为回应

.你知道在p_port_stats_request方法中获取吗

for switch in delays_accept:

            if core.openflow.getConnection(switch[4]):
                connection = core.openflow.getConnection(switch[4])

                msg = of.ofp_stats_request()


                msg.datapath_id = switch[4]
                msg.body = of.ofp_port_stats_request()
                msg.body.port_no = 2
                msg.body.stats = of.ofp_port_stats_request()
                msg.body.stats.port_no = 2
                connection.send(msg)
                time.sleep(3)
                print("relpay for switch:", switch[1])
                print(msg)