#!/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:
def simple_burst(profile_file, duration, framesize, rate, warmup_time, port_0,
- port_1, latency, async_start=False):
- """Send the traffic and measure packet loss and latency.
+ port_1, latency, async_start=False, unidirection=False):
+ """Send traffic and measure packet loss and latency.
Procedure:
- reads the given traffic profile with streams,
:param port_1: Port 1 on the traffic generator.
:param latency: With latency stats.
:param async_start: Start the traffic and exit.
+ :param unidirection: Traffic is unidirectional.
:type profile_file: str
:type framesize: int or str
:type duration: float
:type warmup_time: float
:type port_0: int
:type port_1: int
- :type latency: boo;
+ :type latency: bool
:type async_start: bool
+ :type unidirection: bool
"""
client = None
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))
parser.add_argument("--latency",
action="store_true",
default=False,
- help="Add latency stream")
+ help="Add latency stream.")
+ parser.add_argument("--unidirection",
+ action="store_true",
+ default=False,
+ help="Send unidirection traffic.")
+
args = parser.parse_args()
try:
port_0=args.port_0,
port_1=args.port_1,
latency=args.latency,
- async_start=args.async)
+ async_start=args.async,
+ unidirection=args.unidirection)
if __name__ == '__main__':
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