loss_acceptance_type, traffic_type):
# we need instance of TrafficGenerator instantiated by Robot Framework
- # to be able to use trex_stateless_remote_exec method
+ # to be able to use trex_stl-*()
tg_instance = BuiltIn().get_library_instance(
'resources.libraries.python.TrafficGenerator')
raise Exception('TG subtype not defined')
elif tg_instance._node['subtype'] == NodeSubTypeTG.TREX:
unit_rate = str(rate) + self.get_rate_type_str()
- tg_instance.trex_stateless_remote_exec(self.get_duration(),
+ tg_instance.trex_stl_start_remote_exec(self.get_duration(),
unit_rate, frame_size,
- traffic_type)
-
- # TODO: getters for tg_instance and loss_acceptance_type
- logger.trace("comparing: {} < {} ".format(tg_instance._loss,
- loss_acceptance))
- if float(tg_instance._loss) > float(loss_acceptance):
+ traffic_type, False)
+ loss = tg_instance.get_loss()
+ sent = tg_instance.get_sent()
+ if self.loss_acceptance_type_is_percentage():
+ loss = (float(loss) / float(sent)) * 100
+
+ # TODO: getters for tg_instance
+ logger.trace("comparing: {} < {} {}".format(loss,
+ loss_acceptance,
+ loss_acceptance_type))
+ if float(loss) > float(loss_acceptance):
return False
else:
return True
# T-REX interface order mapping
self._ifaces_reordered = 0
+ def get_loss(self):
+ """Return number of lost packets.
+
+ :return: Number of lost packets.
+ :rtype: str
+ """
+ return self._loss
+
+ def get_sent(self):
+ """Return number of sent packets.
+
+ :return: Number of sent packets.
+ :rtype: str
+ """
+ return self._sent
+
+ def get_received(self):
+ """Return number of received packets.
+
+ :return: Number of received packets.
+ :rtype: str
+ """
+ return self._received
+
+ #pylint: disable=too-many-arguments, too-many-locals
def initialize_traffic_generator(self, tg_node, tg_if1, tg_if2,
dut1_node, dut1_if1, dut1_if2,
dut2_node, dut2_if1, dut2_if2,
:return: nothing
"""
- trex_path = "/opt/trex-core-2.00"
+ trex_path = "/opt/trex-core-2.02"
topo = Topology()
logger.error('pkill t-rex failed: {0}'.format(stdout + stderr))
raise RuntimeError('pkill t-rex failed')
- def trex_stateless_remote_exec(self, duration, rate, framesize,
- traffic_type):
- """Execute stateless script on remote node over ssh.
+ @staticmethod
+ def trex_stl_stop_remote_exec(node):
+ """Execute script on remote node over ssh to stop running traffic.
+
+ :param node: T-REX generator node.
+ :type node: dict
+ :return: Nothing
+ """
+ ssh = SSH()
+ ssh.connect(node)
+
+ (ret, stdout, stderr) = ssh.exec_command(
+ "sh -c '/tmp/openvpp-testing/resources/tools/t-rex/"
+ "t-rex-stateless-stop.py'")
+ logger.trace(ret)
+ logger.trace(stdout)
+ logger.trace(stderr)
+
+ if int(ret) != 0:
+ raise RuntimeError('T-rex stateless runtime error')
+
+ def trex_stl_start_remote_exec(self, duration, rate, framesize,
+ traffic_type, async_call, warmup_time=5):
+ """Execute script on remote node over ssh to start traffic.
+ :param duration: Time expresed in seconds for how long to send traffic.
+ :param rate: Traffic rate expressed with units (pps, %)
+ :param framesize: L2 frame size to send (without padding and IPG).
:param traffic_type: Traffic profile.
+ :param async_call: If enabled then don't wait for all incomming trafic.
+ :param warmup_time: Warmup time period.
+ :type duration: int
+ :type rate: str
+ :type framesize: int
:type traffic_type: str
+ :type async_call: bool
+ :type warmup_time: int
+ :return: Nothing
"""
ssh = SSH()
ssh.connect(self._node)
_p0 = 1
_p1 = 2
+ _async = ""
+ if async_call:
+ _async = "--async"
if self._ifaces_reordered != 0:
_p0, _p1 = _p1, _p0
(ret, stdout, stderr) = ssh.exec_command(
"sh -c '/tmp/openvpp-testing/resources/tools/t-rex/"
"t-rex-stateless.py "
- "-d {0} -r {1} -s {2} "
+ "--duration={0} -r {1} -s {2} "
"--p{3}_src_start_ip 10.10.10.1 "
"--p{3}_src_end_ip 10.10.10.254 "
"--p{3}_dst_start_ip 20.20.20.1 "
"--p{4}_src_start_ip 20.20.20.1 "
"--p{4}_src_end_ip 20.20.20.254 "
- "--p{4}_dst_start_ip 10.10.10.1'".\
- format(duration, rate, framesize, _p0, _p1),\
+ "--p{4}_dst_start_ip 10.10.10.1 "
+ "{5} --warmup_time={6}'".format(duration, rate, framesize, _p0,
+ _p1, _async, warmup_time),
timeout=int(duration)+60)
elif traffic_type in ["3-node-IPv4"]:
(ret, stdout, stderr) = ssh.exec_command(
"sh -c '/tmp/openvpp-testing/resources/tools/t-rex/"
"t-rex-stateless.py "
- "-d {0} -r {1} -s {2} "
+ "--duration={0} -r {1} -s {2} "
"--p{3}_src_start_ip 10.10.10.2 "
"--p{3}_src_end_ip 10.10.10.254 "
"--p{3}_dst_start_ip 20.20.20.2 "
"--p{4}_src_start_ip 20.20.20.2 "
"--p{4}_src_end_ip 20.20.20.254 "
- "--p{4}_dst_start_ip 10.10.10.2'".\
- format(duration, rate, framesize, _p0, _p1),\
+ "--p{4}_dst_start_ip 10.10.10.2 "
+ "{5} --warmup_time={6}'".format(duration, rate, framesize, _p0,
+ _p1, _async, warmup_time),
timeout=int(duration)+60)
elif traffic_type in ["3-node-IPv6"]:
(ret, stdout, stderr) = ssh.exec_command(
"sh -c '/tmp/openvpp-testing/resources/tools/t-rex/"
"t-rex-stateless.py "
- "-d {0} -r {1} -s {2} -6 "
+ "--duration={0} -r {1} -s {2} -6 "
"--p{3}_src_start_ip 2001:1::2 "
"--p{3}_src_end_ip 2001:1::FE "
"--p{3}_dst_start_ip 2001:2::2 "
"--p{4}_src_start_ip 2001:2::2 "
"--p{4}_src_end_ip 2001:2::FE "
- "--p{4}_dst_start_ip 2001:1::2'".\
- format(duration, rate, framesize, _p0, _p1),\
+ "--p{4}_dst_start_ip 2001:1::2 "
+ "{5} --warmup_time={6}'".format(duration, rate, framesize, _p0,
+ _p1, _async, warmup_time),
timeout=int(duration)+60)
else:
raise NotImplementedError('Unsupported traffic type')
if int(ret) != 0:
raise RuntimeError('T-rex stateless runtime error')
+ elif async_call:
+ #no result
+ self._received = None
+ self._sent = None
+ self._loss = None
else:
# last line from console output
line = stdout.splitlines()[-1]
self._sent = self._result.split(', ')[2].split('=')[1]
self._loss = self._result.split(', ')[3].split('=')[1]
- def send_traffic_on(self, node, duration, rate,
- framesize, traffic_type):
+ def stop_traffic_on_tg(self):
+ """Stop all traffic on TG
+
+ :return: Nothing
+ """
+ if self._node is None:
+ raise RuntimeError("TG is not set")
+ if self._node['subtype'] == NodeSubTypeTG.TREX:
+ self.trex_stl_stop_remote_exec(self._node)
+
+ def send_traffic_on_tg(self, duration, rate, framesize,
+ traffic_type, warmup_time=5, async_call=False):
"""Send traffic from all configured interfaces on TG.
- :param node: Dictionary containing TG information.
:param duration: Duration of test traffic generation in seconds.
:param rate: Offered load per interface (e.g. 1%, 3gbps, 4mpps, ...).
:param framesize: Frame size (L2) in Bytes.
:param traffic_type: Traffic profile.
- :type node: dict
:type duration: str
:type rate: str
:type framesize: str
:return: TG output.
:rtype: str
"""
+
+ node = self._node
+ if node is None:
+ raise RuntimeError("TG is not set")
+
if node['type'] != NodeType.TG:
raise Exception('Node type is not a TG')
if node['subtype'] is None:
raise Exception('TG subtype not defined')
elif node['subtype'] == NodeSubTypeTG.TREX:
- self.trex_stateless_remote_exec(duration, rate, framesize,
- traffic_type)
+ self.trex_stl_start_remote_exec(duration, rate, framesize,
+ traffic_type, async_call,
+ warmup_time=warmup_time)
else:
raise NotImplementedError("TG subtype not supported")
return self._result
def no_traffic_loss_occurred(self):
- """Fail is loss occurred in traffic run.
+ """Fail if loss occurred in traffic run.
:return: nothing
"""
raise Exception('The traffic generation has not been issued')
if self._loss != '0':
raise Exception('Traffic loss occurred: {0}'.format(self._loss))
+
+ def partial_traffic_loss_accepted(self, loss_acceptance,
+ loss_acceptance_type):
+ """Fail if loss is higher then accepted in traffic run.
+
+ :return: nothing
+ """
+ if self._loss is None:
+ raise Exception('The traffic generation has not been issued')
+
+ if loss_acceptance_type == 'percentage':
+ loss = (float(self._loss) / float(self._sent)) * 100
+ elif loss_acceptance_type == 'frames':
+ loss = float(self._loss)
+ else:
+ raise Exception('Loss acceptance type not supported')
+
+ if loss > float(loss_acceptance):
+ raise Exception("Traffic loss {} above loss acceptance: {}".format(
+ loss, loss_acceptance))
Code Review / csit.git / blobdiff