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import stl_path
from trex_stl_lib.api import *
import time
def simple_burst (port_a, port_b, pkt_size, burst_size, rate):
# create client
c = STLClient()
passed = True
try:
pkt_base = Ether()/IP(src="16.0.0.1",dst="48.0.0.1")/UDP(dport=12,sport=1025)/IP()
pad = max(0, pkt_size - len(pkt_base)) * 'x'
pkt = STLPktBuilder(pkt = pkt_base / pad)
# create two bursts and link them
s1 = STLStream(name = 'A',
packet = pkt,
mode = STLTXSingleBurst(total_pkts = burst_size),
next = 'B')
s2 = STLStream(name = 'B',
self_start = False,
packet = pkt,
mode = STLTXSingleBurst(total_pkts = burst_size))
# connect to server
c.connect()
# prepare our ports
c.reset(ports = [port_a, port_b])
# add both streams to ports
stream_ids = c.add_streams([s1, s2], ports = [port_a, port_b])
# run 5 times
for i in range(1, 6):
c.clear_stats()
c.start(ports = [port_a, port_b], mult = rate)
c.wait_on_traffic(ports = [port_a, port_b])
stats = c.get_stats()
ipackets = stats['total']['ipackets']
print("Test iteration {0} - Packets Received: {1} ".format(i, ipackets))
# two streams X 2 ports
if (ipackets != (burst_size * 2 * 2)):
passed = False
except STLError as e:
passed = False
print(e)
finally:
c.disconnect()
if c.get_warnings():
print("\n\n*** test had warnings ****\n\n")
for w in c.get_warnings():
print(w)
if passed and not c.get_warnings():
print("\nTest has passed :-)\n")
else:
print("\nTest has failed :-(\n")
# run the tests
simple_burst(0, 3, 256, 50000, "80%")
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