import stl_path from trex_stl_lib.api import * import imp import time import json from pprint import pprint import argparse # IMIX test # it maps the ports to sides # then it load a predefind profile 'IMIX' # and attach it to both sides and inject # at a certain rate for some time # finally it checks that all packets arrived def imix_test (server): # create client c = STLClient(server = server) passed = True try: # connect to server c.connect() # take all the ports c.reset() dir_0 = [0] dir_1 = [1] print "Mapped ports to sides {0} <--> {1}".format(dir_0, dir_1) # load IMIX profile profile_file = os.path.join(stl_path.STL_PROFILES_PATH, 'imix.py') profile1 = STLProfile.load_py(profile_file, direction=0) profile2 = STLProfile.load_py(profile_file, direction=1) stream1 = profile1.get_streams() stream2 = profile2.get_streams() # add both streams to ports c.add_streams(stream1, ports = dir_0) c.add_streams(stream2, ports = dir_1) # clear the stats before injecting c.clear_stats() # choose rate and start traffic for 10 seconds on 5 mpps duration = 30 mult = "30%" print "Injecting {0} <--> {1} on total rate of '{2}' for {3} seconds".format(dir_0, dir_1, mult, duration) c.start(ports = (dir_0 + dir_1), mult = mult, duration = duration, total = True) # block until done c.wait_on_traffic(ports = (dir_0 + dir_1)) # read the stats after the test stats = c.get_stats() # use this for debug info on all the stats pprint(stats) # sum dir 0 dir_0_opackets = sum([stats[i]["opackets"] for i in dir_0]) dir_0_ipackets = sum([stats[i]["ipackets"] for i in dir_0]) # sum dir 1 dir_1_opackets = sum([stats[i]["opackets"] for i in dir_1]) dir_1_ipackets = sum([stats[i]["ipackets"] for i in dir_1]) lost_0 = dir_0_opackets - dir_1_ipackets lost_1 = dir_1_opackets - dir_0_ipackets print "\nPackets injected from {0}: {1:,}".format(dir_0, dir_0_opackets) print "Packets injected from {0}: {1:,}".format(dir_1, dir_1_opackets) print "\npackets lost from {0} --> {1}: {2:,} pkts".format(dir_0, dir_1, lost_0) print "packets lost from {0} --> {1}: {2:,} pkts".format(dir_1, dir_0, lost_1) if (lost_0 <= 0) and (lost_1 <= 0): # less or equal because we might have incoming arps etc. passed = True else: passed = False except STLError as e: passed = False print e finally: c.disconnect() if passed: print "\nTest has passed :-)\n" else: print "\nTest has failed :-(\n" parser = argparse.ArgumentParser(description="Example for TRex Stateless, sending IMIX traffic") parser.add_argument('-s', '--server', dest='server', help='Remote trex address', default='127.0.0.1', type = str) args = parser.parse_args() # run the tests imix_test(args.server)