1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
import stl_path
from trex_stl_lib.api import *
import time
import json
from pprint import pprint
import argparse
import sys
# 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, mult):
# create client
c = STLClient(server = server)
passed = True
try:
# connect to server
c.connect()
# take all the ports
c.reset()
# map ports - identify the routes
table = stl_map_ports(c)
dir_0 = [x[0] for x in table['bi']]
dir_1 = [x[1] for x in table['bi']]
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')
profile = STLProfile.load_py(profile_file)
streams = profile.get_streams()
# add both streams to ports
c.add_streams(streams, ports = dir_0)
c.add_streams(streams, ports = dir_1)
# clear the stats before injecting
c.clear_stats()
# choose rate and start traffic for 10 seconds
duration = 10
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_0, lost_0))
print("packets lost from {0} --> {1}: {2:,} pkts".format(dir_1, dir_1, lost_1))
if c.get_warnings():
print("\n\n*** test had warnings ****\n\n")
for w in c.get_warnings():
print(w)
if (lost_0 <= 0) and (lost_1 <= 0) and not c.get_warnings(): # less or equal because we might have incoming arps etc.
passed = True
else:
passed = False
except STLError as e:
passed = False
print(e)
sys.exit(1)
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)
parser.add_argument('-m', '--mult',
dest='mult',
help='Multiplier of traffic, see Stateless help for more info',
default='30%',
type = str)
args = parser.parse_args()
# run the tests
imix_test(args.server, args.mult)
|
