from trex_stl_lib.api import * # 1 clients MAC override the LSB of destination class STLS1(object): def __init__ (self): self.fsize =64; # the size of the packet self.burst_size = 2 def create_stream (self): # Create base packet and pad it to size size = self.fsize - 4; # HW will add 4 bytes ethernet FCS base_pkt = Ether()/IP(src="16.0.0.1",dst="48.0.0.1")/UDP(dport=12,sport=1025) base_pkt1 = Ether()/IP(src="16.0.0.2",dst="48.0.0.1")/UDP(dport=12,sport=1025) pad = max(0, size - len(base_pkt)) * 'x' return STLProfile( [ STLStream( isg = 10.0, # start in delay name ='S0', packet = STLPktBuilder(pkt = base_pkt/pad), mode = STLTXSingleBurst( pps = 10, total_pkts = self.burst_size), next = 'S1'), # point to next stream STLStream( self_start = False, # Stream is disabled. Will run because it is pointed from S0 name ='S1', packet = STLPktBuilder(pkt = base_pkt1/pad), mode = STLTXMultiBurst( pps = 1000,pkts_per_burst = 4,ibg = 1000000.0,count = 5) ) ]).get_streams() def get_streams (self, direction = 0, **kwargs): # create 1 stream return self.create_stream() # dynamic load - used for trex console or simulator def register(): return STLS1()