def get_stat_port(self, conf, dpid, port_no):        
        type_pps = 1
        str_dpid = str(dpid)
        port_num = int(port_no)
        port_stats = mul_nbapi.get_switch_statistics_port((int(str_dpid, 0), port_num))                                                        

        return {"pps":str(port_stats.pps), "bps":str(port_stats.bps)}
 def check_port_pps(self, dpid, port_num, pps_type):
     return mul_nbapi.get_switch_statistics_port(int(dpid, 0), port_num, pps_type)