#!/usr/bin/python
-# Copyright (c) 2017 Cisco and/or its affiliates.
+# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
:type unidirection: bool
"""
- #unidirection traffic
- if unidirection:
- send_traffic_unidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start)
- #bidirection traffic
- else:
- send_traffic_bidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start)
-
-
-def send_traffic_bidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start=False):
- """Send traffic bidirection and measure packet loss and latency.
-
- :param profile_file: A python module with T-rex traffic profile.
- :param framesize: Frame size.
- :param duration: Duration of traffic run in seconds (-1=infinite).
- :param rate: Traffic rate [percentage, pps, bps].
- :param warmup_time: Traffic warm-up time in seconds, 0 = disable.
- :param port_0: Port 0 on the traffic generator.
- :param port_1: Port 1 on the traffic generator.
- :param latency: With latency stats.
- :param async_start: Start the traffic and exit.
- :type profile_file: str
- :type framesize: int or str
- :type duration: float
- :type rate: str
- :type warmup_time: float
- :type port_0: int
- :type port_1: int
- :type latency: bool
- :type async_start: bool
- """
-
client = None
total_rcvd = 0
total_sent = 0
resolve=False)
if isinstance(framesize, int):
client.add_streams(streams[0], ports=[port_0])
- client.add_streams(streams[1], ports=[port_1])
+ if not unidirection:
+ client.add_streams(streams[1], ports=[port_1])
elif isinstance(framesize, str):
client.add_streams(streams[0:3], ports=[port_0])
- client.add_streams(streams[3:6], ports=[port_1])
+ if not unidirection:
+ client.add_streams(streams[3:6], ports=[port_1])
if latency:
try:
if isinstance(framesize, int):
client.add_streams(streams[2], ports=[port_0])
- client.add_streams(streams[3], ports=[port_1])
+ if not unidirection:
+ client.add_streams(streams[3], ports=[port_1])
elif isinstance(framesize, str):
latency = False
except STLError:
# Disable latency if NIC does not support requested stream type
print("##### FAILED to add latency streams #####")
latency = False
+ ports = [port_0]
+ if not unidirection:
+ ports.append(port_1)
# Warm-up phase:
if warmup_time > 0:
# Clear the stats before injecting:
client.clear_stats()
# Choose rate and start traffic:
- client.start(ports=[port_0, port_1], mult=rate,
- duration=warmup_time)
+ client.start(ports=ports, mult=rate, duration=warmup_time)
# Block until done:
- client.wait_on_traffic(ports=[port_0, port_1],
- timeout=warmup_time+30)
+ client.wait_on_traffic(ports=ports, timeout=warmup_time+30)
if client.get_warnings():
for warning in client.get_warnings():
print(json.dumps(stats, indent=4, separators=(',', ': '),
sort_keys=True))
- lost_a = stats[0]["opackets"] - stats[1]["ipackets"]
- lost_b = stats[1]["opackets"] - stats[0]["ipackets"]
+ lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
+ if not unidirection:
+ lost_b = stats[port_1]["opackets"] - stats[port_0]["ipackets"]
- print("\npackets lost from 0 --> 1: {0} pkts".format(lost_a))
- print("packets lost from 1 --> 0: {0} pkts".format(lost_b))
+ print("\npackets lost from {p_0} --> {p_1}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_a))
+ if not unidirection:
+ print("packets lost from {p_1} --> {p_0}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_b))
# Clear the stats before injecting:
client.clear_stats()
lost_b = 0
# Choose rate and start traffic:
- client.start(ports=[port_0, port_1], mult=rate, duration=duration)
+ client.start(ports=ports, mult=rate, duration=duration)
if not async_start:
# Block until done:
- client.wait_on_traffic(ports=[port_0, port_1], timeout=duration+30)
+ client.wait_on_traffic(ports=ports, timeout=duration+30)
if client.get_warnings():
for warning in client.get_warnings():
print(json.dumps(stats, indent=4, separators=(',', ': '),
sort_keys=True))
- lost_a = stats[0]["opackets"] - stats[1]["ipackets"]
- lost_b = stats[1]["opackets"] - stats[0]["ipackets"]
+ lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
+ if not unidirection:
+ lost_b = stats[port_1]["opackets"] - stats[port_0]["ipackets"]
if latency:
lat_a = fmt_latency(
- str(stats["latency"][0]["latency"]["total_min"]),
- str(stats["latency"][0]["latency"]["average"]),
- str(stats["latency"][0]["latency"]["total_max"]))
- lat_b = fmt_latency(
- str(stats["latency"][1]["latency"]["total_min"]),
- str(stats["latency"][1]["latency"]["average"]),
- str(stats["latency"][1]["latency"]["total_max"]))
-
- total_sent = stats[0]["opackets"] + stats[1]["opackets"]
- total_rcvd = stats[0]["ipackets"] + stats[1]["ipackets"]
-
- print("\npackets lost from 0 --> 1: {0} pkts".format(lost_a))
- print("packets lost from 1 --> 0: {0} pkts".format(lost_b))
+ str(stats["latency"][port_0]["latency"]["total_min"]),
+ str(stats["latency"][port_0]["latency"]["average"]),
+ str(stats["latency"][port_0]["latency"]["total_max"]))
+ if not unidirection:
+ lat_b = fmt_latency(
+ str(stats["latency"][port_1]["latency"]["total_min"]),
+ str(stats["latency"][port_1]["latency"]["average"]),
+ str(stats["latency"][port_1]["latency"]["total_max"]))
+
+ if not unidirection:
+ total_sent = stats[0]["opackets"] + stats[1]["opackets"]
+ total_rcvd = stats[0]["ipackets"] + stats[1]["ipackets"]
+ else:
+ total_sent = stats[port_0]["opackets"]
+ total_rcvd = stats[port_1]["ipackets"]
+
+ print("\npackets lost from {p_0} --> {p_1}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_a))
+ if not unidirection:
+ print("packets lost from {p_1} --> {p_0}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_b))
except STLError as err:
sys.stderr.write("{0}\n".format(err))
else:
if client:
client.disconnect()
- print("rate={0}, totalReceived={1}, totalSent={2}, "
+ if isinstance(rate, unicode):
+ rate = rate.encode("utf-8")
+ if isinstance(duration, unicode):
+ duration = duration.encode("utf-8")
+ print("rate={0!r}, totalReceived={1}, totalSent={2}, "
"frameLoss={3}, latencyStream0(usec)={4}, "
- "latencyStream1(usec)={5}".
+ "latencyStream1(usec)={5}, targetDuration={d!r}".
format(rate, total_rcvd, total_sent, lost_a + lost_b,
- lat_a, lat_b))
-
-
-def send_traffic_unidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start=False):
- """Send traffic unidirection and measure packet loss and latency.
-
- :param profile_file: A python module with T-rex traffic profile.
- :param framesize: Frame size.
- :param duration: Duration of traffic run in seconds (-1=infinite).
- :param rate: Traffic rate [percentage, pps, bps].
- :param warmup_time: Traffic warm-up time in seconds, 0 = disable.
- :param port_0: Port 0 on the traffic generator.
- :param port_1: Port 1 on the traffic generator.
- :param latency: With latency stats.
- :param async_start: Start the traffic and exit.
- :type profile_file: str
- :type framesize: int or str
- :type duration: float
- :type rate: str
- :type warmup_time: float
- :type port_0: int
- :type port_1: int
- :type latency: bool
- :type async_start: bool
- """
-
- client = None
- total_rcvd = 0
- total_sent = 0
- lost_a = 0
- lat_a = "-1/-1/-1"
-
- # Read the profile:
- try:
- print("### Profile file:\n{}".format(profile_file))
- profile = STLProfile.load(profile_file, direction=0, port_id=0,
- framesize=framesize)
- streams = profile.get_streams()
- except STLError as err:
- print("Error while loading profile '{0}' {1}".format(profile_file, err))
- sys.exit(1)
-
- try:
- # Create the client:
- client = STLClient(verbose_level=LoggerApi.VERBOSE_QUIET)
- # Connect to server:
- client.connect()
- # Prepare our ports:
- if port_0 == port_1:
- client.reset(ports=[port_0])
- client.remove_all_streams(ports=[port_0])
-
- if "macsrc" in profile_file:
- client.set_port_attr(ports=[port_0], promiscuous=True,
- resolve=False)
- else:
- client.reset(ports=[port_0, port_1])
- client.remove_all_streams(ports=[port_0, port_1])
-
- if "macsrc" in profile_file:
- client.set_port_attr(ports=[port_0, port_1], promiscuous=True,
- resolve=False)
-
- if isinstance(framesize, int):
- client.add_streams(streams[0], ports=[port_0])
- elif isinstance(framesize, str):
- client.add_streams(streams[0:3], ports=[port_0])
- if latency:
- try:
- if isinstance(framesize, int):
- client.add_streams(streams[2], ports=[port_0])
- elif isinstance(framesize, str):
- latency = False
- except STLError:
- # Disable latency if NIC does not support requested stream type
- print("##### FAILED to add latency streams #####")
- latency = False
-
- # Warm-up phase:
- if warmup_time > 0:
- # Clear the stats before injecting:
- client.clear_stats()
-
- # Choose rate and start traffic:
- client.start(ports=[port_0], mult=rate,
- duration=warmup_time)
-
- # Block until done:
- client.wait_on_traffic(ports=[port_0],
- timeout=warmup_time+30)
-
- if client.get_warnings():
- for warning in client.get_warnings():
- print(warning)
-
- # Read the stats after the test:
- stats = client.get_stats()
-
- print("##### Warmup statistics #####")
- print(json.dumps(stats, indent=4, separators=(',', ': '),
- sort_keys=True))
-
- lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
- print("\npackets lost : {0} pkts".format(lost_a))
-
- # Clear the stats before injecting:
- client.clear_stats()
- lost_a = 0
-
- # Choose rate and start traffic:
- client.start(ports=[port_0], mult=rate, duration=duration)
-
- if not async_start:
- # Block until done:
- client.wait_on_traffic(ports=[port_0], timeout=duration+30)
-
- if client.get_warnings():
- for warning in client.get_warnings():
- print(warning)
-
- # Read the stats after the test
- stats = client.get_stats()
-
- print("##### Statistics #####")
- print(json.dumps(stats, indent=4, separators=(',', ': '),
- sort_keys=True))
-
- lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
-
- if latency:
- lat_a = fmt_latency(
- str(stats["latency"][0]["latency"]["total_min"]),
- str(stats["latency"][0]["latency"]["average"]),
- str(stats["latency"][0]["latency"]["total_max"]))
-
- total_sent = stats[port_0]["opackets"]
- total_rcvd = stats[port_1]["ipackets"]
-
- print("\npackets lost : {0} pkts".format(lost_a))
-
- except STLError as err:
- sys.stderr.write("{0}\n".format(err))
- sys.exit(1)
-
- finally:
- if async_start:
- if client:
- client.disconnect(stop_traffic=False, release_ports=True)
- else:
- if client:
- client.disconnect()
- print("rate={0}, totalReceived={1}, totalSent={2}, "
- "frameLoss={3}, latencyStream0(usec)={4}".
- format(rate, total_rcvd, total_sent, lost_a, lat_a))
+ lat_a, lat_b, d=duration))
def main():
Code Review / csit.git / blobdiff