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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)
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