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trex-txrx.py
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from __future__ import print_function
import sys, getopt
sys.path.append('/opt/trex/current/automation/trex_control_plane/interactive')
import argparse
import string
import datetime
import math
import threading
from decimal import *
from trex.stl.api import *
from trex_tg_lib import *
class t_global(object):
args=None;
def myprint(*args, **kwargs):
stderr_only = False
if 'stderr_only' in kwargs:
stderr_only = kwargs['stderr_only']
del kwargs['stderr_only']
if not stderr_only:
print(*args, **kwargs)
if stderr_only or t_global.args.mirrored_log:
print(*args, file = sys.stderr, **kwargs)
return
def create_teaching_garp_packets (direction, other_direction, device_pair):
garp_request_packet = create_garp_pkt(device_pair[direction]['packet_values']['macs']['dst'],
device_pair[direction]['packet_values']['ips']['dst'],
device_pair[other_direction]['packet_values']['vlan'],
0x1,
t_global.args.flow_mods,
t_global.args.num_flows,
t_global.args.enable_flow_cache)
garp_reply_packet = create_garp_pkt(device_pair[direction]['packet_values']['macs']['dst'],
device_pair[direction]['packet_values']['ips']['dst'],
device_pair[other_direction]['packet_values']['vlan'],
0x2,
t_global.args.flow_mods,
t_global.args.num_flows,
t_global.args.enable_flow_cache)
return [garp_request_packet, garp_reply_packet]
def create_teaching_icmp_packets (direction, other_direction, device_pair):
return [ create_icmp_bcast_pkt(device_pair[direction]['packet_values']['macs']['dst'],
device_pair[direction]['packet_values']['ips']['dst'],
device_pair[other_direction]['packet_values']['vlan'],
t_global.args.flow_mods,
t_global.args.num_flows,
t_global.args.enable_flow_cache) ]
def create_teaching_generic_packets (direction, other_direction, device_pair):
return [ create_generic_pkt(64,
device_pair[direction]['packet_values']['macs']['dst'],
device_pair[direction]['packet_values']['macs']['src'],
device_pair[direction]['packet_values']['ips']['dst'],
device_pair[direction]['packet_values']['ips']['src'],
device_pair[direction]['packet_values']['ports']['dst'],
device_pair[direction]['packet_values']['ports']['src'],
"UDP",
device_pair[other_direction]['packet_values']['vlan'],
t_global.args.flow_mods,
t_global.args.num_flows,
t_global.args.enable_flow_cache) ]
def create_teaching_warmup_traffic_profile (direction, other_direction, device_pair):
myprint("Creating teaching warmup streams for device pair '%s' direction '%s' with TYPE=%s and MAC=%s and IP=%s" % (device_pair['device_pair'],
direction,
t_global.args.teaching_warmup_packet_type,
device_pair[direction]['packet_values']['macs']['dst'],
device_pair[direction]['packet_values']['ips']['dst']))
teaching_packets = []
if t_global.args.teaching_warmup_packet_type == "garp":
teaching_packets = create_teaching_garp_packets(direction, other_direction, device_pair)
elif t_global.args.teaching_warmup_packet_type == "generic":
teaching_packets = create_teaching_generic_packets(direction, other_direction, device_pair)
if t_global.args.teaching_warmup_packet_type == "icmp":
teaching_packets = create_teaching_icmp_packets(direction, other_direction, device_pair)
warmup_mode = STLTXSingleBurst(total_pkts = t_global.args.num_flows, pps = t_global.args.teaching_warmup_packet_rate)
for packet in teaching_packets:
device_pair[other_direction]['teaching_warmup_traffic_profile'].append(STLStream(packet = packet, mode = warmup_mode))
return
def create_teaching_measurement_traffic_profile (direction, other_direction, device_pair):
myprint("Creating teaching measurement streams for device pair '%s' direction '%s' with TYPE=%s and MAC=%s and IP=%s" % (device_pair['device_pair'],
direction,
t_global.args.teaching_measurement_packet_type,
device_pair[direction]['packet_values']['macs']['dst'],
device_pair[direction]['packet_values']['ips']['dst']))
teaching_packets = []
if t_global.args.teaching_measurement_packet_type == "garp":
teaching_packets = create_teaching_garp_packets(direction, other_direction, device_pair)
elif t_global.args.teaching_measurement_packet_type == "generic":
teaching_packets = create_teaching_generic_packets(direction, other_direction, device_pair)
if t_global.args.teaching_measurement_packet_type == "icmp":
teaching_packets = create_teaching_icmp_packets(direction, other_direction, device_pair)
burst_length = t_global.args.num_flows / t_global.args.teaching_measurement_packet_rate
# IBG is in usec, so we multiply by 1,000,000 to convert to seconds
measurement_mode = STLTXMultiBurst(pkts_per_burst = t_global.args.num_flows, ibg = (t_global.args.teaching_measurement_interval * 1000000), count = int(t_global.args.runtime / (t_global.args.teaching_measurement_interval + burst_length)), pps = t_global.args.teaching_measurement_packet_rate)
for packet in teaching_packets:
device_pair[other_direction]['teaching_measurement_traffic_profile'].append(STLStream(packet = packet, mode = measurement_mode))
return
def create_traffic_profile (direction, device_pair, rate_multiplier, port_speed):
streams = { 'default': { 'protocol': [],
'pps': [],
'pg_ids': [],
'names': [],
'next_stream_names': [],
'frame_sizes': [],
'traffic_shares': [],
'self_starts': [],
'runtime': [],
'stream_modes': [] } }
streams['latency'] = copy.deepcopy(streams['default'])
# packet overhead is (7 byte preamable + 1 byte SFD -- Start of Frame Delimiter -- + 12 byte IFG -- Inter Frame Gap)
packet_overhead_bytes = 20
ethernet_frame_overhead = 18
bits_per_byte = 8
protocols = [ t_global.args.packet_protocol ]
if t_global.args.flow_mods['protocol']:
if t_global.args.packet_protocol == "UDP":
protocols.append("TCP")
elif t_global.args.packet_protocol == "TCP":
protocols.append("UDP")
for protocols_index, protocols_value in enumerate(protocols):
if t_global.args.frame_size == "imix" and t_global.args.stream_mode == "continuous":
# imix is defined as the following packets (including IP header): 7 of size 40 bytes, 4 of size 576 bytes, and 1 of size 1500 bytes
# from https://en.wikipedia.org/wiki/Internet_Mix
small_packets = 7
medium_packets = 4
large_packets = 1
total_packets = small_packets + medium_packets + large_packets
small_traffic_share = float(small_packets) / float(total_packets)
medium_traffic_share = float(medium_packets) / float(total_packets)
large_traffic_share = float(large_packets) / float(total_packets)
small_packet_bytes = 40 + ethernet_frame_overhead
medium_packet_bytes = 576 + ethernet_frame_overhead
large_packet_bytes = 1500 + ethernet_frame_overhead
avg_packet_bytes = float(small_packet_bytes*small_packets + medium_packet_bytes*medium_packets + large_packet_bytes*large_packets) / float(total_packets)
small_stream_pg_id = device_pair[direction]['pg_ids']['default']['start_index'] + protocols_index
medium_stream_pg_id = device_pair[direction]['pg_ids']['default']['start_index'] + 2 + protocols_index
large_stream_pg_id = device_pair[direction]['pg_ids']['default']['start_index'] + 4 + protocols_index
small_stream_name = "small_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
medium_stream_name = "medium_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
large_stream_name = "large_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
streams['default']['protocol'].extend([protocols_value, protocols_value, protocols_value])
if t_global.args.rate_unit == "mpps":
my_packet_rate = rate_multiplier / len(protocols) * 1000000
else:
my_packet_rate = ((rate_multiplier / 100) / len(protocols)) * (port_speed / bits_per_byte) / (avg_packet_bytes + packet_overhead_bytes)
streams['default']['pps'].extend([small_traffic_share * my_packet_rate, medium_traffic_share * my_packet_rate, large_traffic_share * my_packet_rate])
streams['default']['pg_ids'].extend([small_stream_pg_id, medium_stream_pg_id, large_stream_pg_id])
streams['default']['names'].extend([small_stream_name, medium_stream_name, large_stream_name])
streams['default']['next_stream_names'].extend([None, None, None])
streams['default']['frame_sizes'].extend([small_packet_bytes, medium_packet_bytes, large_packet_bytes])
streams['default']['traffic_shares'].extend([(small_traffic_share/len(protocols)), (medium_traffic_share/len(protocols)), (large_traffic_share/len(protocols))])
streams['default']['self_starts'].extend([True, True, True])
streams['default']['stream_modes'].extend(["burst", "burst", "burst"])
streams['default']['runtime'].extend([float(t_global.args.runtime), float(t_global.args.runtime), float(t_global.args.runtime)])
if t_global.args.measure_latency:
small_latency_stream_pg_id = device_pair[direction]['pg_ids']['latency']['start_index'] + protocols_index
medium_latency_stream_pg_id = device_pair[direction]['pg_ids']['latency']['start_index'] + 2 + protocols_index
large_latency_stream_pg_id = device_pair[direction]['pg_ids']['latency']['start_index'] + 4 + protocols_index
small_latency_stream_name = "small_latency_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
medium_latency_stream_name = "medium_latency_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
large_latency_stream_name = "large_latency_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
streams['latency']['protocol'].extend([protocols_value, protocols_value, protocols_value])
streams['latency']['pps'].extend([calculate_latency_pps(small_packets, total_packets, t_global.args.latency_rate, len(protocols)), calculate_latency_pps(medium_packets, total_packets, t_global.args.latency_rate, len(protocols)), calculate_latency_pps(large_packets, total_packets, t_global.args.latency_rate, len(protocols))])
streams['latency']['pg_ids'].extend([small_latency_stream_pg_id, medium_latency_stream_pg_id, large_latency_stream_pg_id])
streams['latency']['names'].extend([small_latency_stream_name, medium_latency_stream_name, large_latency_stream_name])
streams['latency']['next_stream_names'].extend([None, None, None])
streams['latency']['frame_sizes'].extend([small_packet_bytes, medium_packet_bytes, large_packet_bytes])
streams['latency']['traffic_shares'].extend([(small_traffic_share/len(protocols)), (medium_traffic_share/len(protocols)), (large_traffic_share/len(protocols))])
streams['latency']['self_starts'].extend([True, True, True])
streams['latency']['stream_modes'].extend(["continuous", "continuous", "continuous"])
streams['latency']['runtime'].extend([-1, -1, -1])
elif t_global.args.frame_size == "imix" and t_global.args.stream_mode == "segmented":
print("Support for segmented IMIX needs to be coded...")
elif t_global.args.stream_mode == "continuous":
default_stream_pg_id = device_pair[direction]['pg_ids']['default']['start_index'] + protocols_index
default_stream_name = "default_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
streams['default']['protocol'].extend([protocols_value])
if t_global.args.rate_unit == "mpps":
streams['default']['pps'].extend([rate_multiplier/len(protocols)*1000000])
else:
streams['default']['pps'].extend([((rate_multiplier/100)/len(protocols)) * (port_speed / bits_per_byte) / (int(t_global.args.frame_size) + packet_overhead_bytes)])
streams['default']['pg_ids'].extend([default_stream_pg_id])
streams['default']['names'].extend([default_stream_name])
streams['default']['next_stream_names'].extend([None])
streams['default']['frame_sizes'].extend([int(t_global.args.frame_size)])
streams['default']['traffic_shares'].extend([1.0/len(protocols)])
streams['default']['self_starts'].extend([True])
streams['default']['stream_modes'].extend(["burst"])
streams['default']['runtime'].extend([float(t_global.args.runtime)])
if t_global.args.measure_latency:
latency_stream_pg_id = device_pair[direction]['pg_ids']['latency']['start_index'] + protocols_index
latency_stream_name = "latency_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value
streams['latency']['protocol'].extend([protocols_value])
streams['latency']['pps'].extend([t_global.args.latency_rate/len(protocols)])
streams['latency']['pg_ids'].extend([latency_stream_pg_id])
streams['latency']['names'].extend([latency_stream_name])
streams['latency']['next_stream_names'].extend([None])
streams['latency']['frame_sizes'].extend([int(t_global.args.frame_size)])
streams['latency']['traffic_shares'].extend([1.0/len(protocols)])
streams['latency']['self_starts'].extend([True])
streams['latency']['stream_modes'].extend(["continuous"])
streams['latency']['runtime'].extend([-1])
elif t_global.args.stream_mode == "segmented":
stream_types = [ "default" ]
if t_global.args.measure_latency:
stream_types.append("latency")
for streams_type_index, streams_type_value in enumerate(stream_types):
if len(protocols) > 1 and (device_pair[direction]['pg_ids'][streams_type_value]['available'] % 2) != 0:
device_pair[direction]['pg_ids'][streams_type_value]['available'] -= 1
min_pg_id = device_pair[direction]['pg_ids'][streams_type_value]['start_index'] + protocols_index
max_pg_id = device_pair[direction]['pg_ids'][streams_type_value]['start_index'] + device_pair[direction]['pg_ids'][streams_type_value]['available']
counter=1
for current_pg_id in range(min_pg_id, max_pg_id, len(protocols)):
stream_name_prefix = streams_type_value + "_stream_" + device_pair[direction]['id_string'] + "_" + protocols_value + "_segment_"
stream_name = stream_name_prefix + str(counter)
next_stream_name = None
if (current_pg_id + len(protocols)) < max_pg_id:
next_stream_name = stream_name_prefix + str(counter+1)
self_start = False
if current_pg_id == min_pg_id:
self_start = True
streams[streams_type_value]['protocol'].extend([protocols_value])
if streams_type_value == "latency":
streams[streams_type_value]['pps'].extend([t_global.args.latency_rate/len(protocols)])
else:
if t_global.args.rate_unit == "mpps":
streams[streams_type_value]['pps'].extend([rate_multiplier/len(protocols)*1000000])
else:
streams[streams_type_value]['pps'].extend([((rate_multiplier/100)/len(protocols)) * (port_speed / bits_per_byte) / (int(t_global.args.frame_size) + packet_overhead_bytes)])
streams[streams_type_value]['pg_ids'].extend([current_pg_id])
streams[streams_type_value]['names'].extend([stream_name])
streams[streams_type_value]['next_stream_names'].extend([next_stream_name])
streams[streams_type_value]['frame_sizes'].extend([int(t_global.args.frame_size)])
streams[streams_type_value]['traffic_shares'].extend([1.0/device_pair[direction]['pg_ids'][streams_type_value]["available"]])
streams[streams_type_value]['self_starts'].extend([self_start])
streams[streams_type_value]['stream_modes'].extend(["burst"])
streams[streams_type_value]['runtime'].extend([float(t_global.args.runtime)/(device_pair[direction]['pg_ids'][streams_type_value]["available"]/len(protocols))])
counter += 1
for streams_index, streams_packet_type in enumerate(streams):
for stream_packet_protocol, stream_pps, stream_pg_id, stream_name, stream_frame_size, stream_traffic_share, stream_next_stream_name, stream_self_start, stream_mode, stream_runtime in zip(streams[streams_packet_type]['protocol'], streams[streams_packet_type]['pps'], streams[streams_packet_type]['pg_ids'], streams[streams_packet_type]['names'], streams[streams_packet_type]['frame_sizes'], streams[streams_packet_type]['traffic_shares'], streams[streams_packet_type]['next_stream_names'], streams[streams_packet_type]['self_starts'], streams[streams_packet_type]['stream_modes'], streams[streams_packet_type]['runtime']):
myprint("Creating stream for device pair '%s' direction '%s' with packet_type=[%s], protocol=[%s], pps=[%f], pg_id=[%d], name=[%s], frame_size=[%d], next_stream_name=[%s], self_start=[%s], stream_mode=[%s], runtime=[%f], and traffic_share=[%f]." %
(device_pair['device_pair'],
direction,
streams_packet_type,
stream_packet_protocol,
stream_pps,
stream_pg_id,
stream_name,
stream_frame_size,
stream_next_stream_name,
stream_self_start,
stream_mode,
stream_runtime,
stream_traffic_share))
stream_flow_stats = None
if streams_packet_type == "default" and not t_global.args.skip_hw_flow_stats:
stream_flow_stats = STLFlowStats(pg_id = stream_pg_id)
elif streams_packet_type == "latency":
stream_flow_stats = STLFlowLatencyStats(pg_id = stream_pg_id)
device_pair[direction]['pg_ids'][streams_packet_type]['list'].append(stream_pg_id)
stream_loop = False
if stream_mode == "burst":
stream_total_pkts = int(stream_runtime * stream_pps)
# check if the total number of packets to TX is greater than can be held in an uint32 (API limit)
max_uint32 = int(4294967295)
if stream_total_pkts > max_uint32:
stream_loop = True
stream_loop_remainder = stream_total_pkts % max_uint32
stream_loops = int(((stream_total_pkts - stream_loop_remainder) / max_uint32))
if stream_loop_remainder == 0:
stream_loops -= 1
stream_loops_remainder = max_uinit32
else:
stream_mode_obj = STLTXSingleBurst(pps = stream_pps, total_pkts = stream_total_pkts)
elif stream_mode == "continuous":
stream_mode_obj = STLTXCont(pps = stream_pps)
stream_packet = create_generic_pkt(stream_frame_size,
device_pair[direction]['packet_values']['macs']['src'],
device_pair[direction]['packet_values']['macs']['dst'],
device_pair[direction]['packet_values']['ips']['src'],
device_pair[direction]['packet_values']['ips']['dst'],
device_pair[direction]['packet_values']['ports']['src'],
device_pair[direction]['packet_values']['ports']['dst'],
stream_packet_protocol,
device_pair[direction]['packet_values']['vlan'],
t_global.args.flow_mods,
t_global.args.num_flows,
t_global.args.enable_flow_cache)
if stream_loop:
myprint("Stream is being split into multiple substreams due to high total packet count")
substream_self_start = stream_self_start
for loop_idx in range(1, stream_loops+1):
if loop_idx == 1:
substream_name = stream_name
else:
substream_name = "%s_sub_%d" % (stream_name, loop_idx)
substream_next_name = "%s_sub_%d" % (stream_name, loop_idx+1)
myprint("Creating substream %d with name %s" % (loop_idx, substream_name))
stream_mode_obj = STLTXSingleBurst(pps = stream_pps, total_pkts = max_uint32)
device_pair[direction]['traffic_profile'].append(STLStream(packet = stream_packet,
flow_stats = stream_flow_stats,
mode = stream_mode_obj,
name = substream_name,
next = substream_next_name,
self_start = substream_self_start))
substream_self_start = False
substream_name = "%s_sub_%d" % (stream_name, stream_loops+1)
myprint("Creating substream %d with name %s" % (stream_loops+1, substream_name))
stream_mode_obj = STLTXSingleBurst(pps = stream_pps, total_pkts = stream_loop_remainder)
device_pair[direction]['traffic_profile'].append(STLStream(packet = stream_packet,
flow_stats = stream_flow_stats,
mode = stream_mode_obj,
name = substream_name,
next = stream_next_stream_name,
self_start = substream_self_start))
else:
device_pair[direction]['traffic_profile'].append(STLStream(packet = stream_packet,
flow_stats = stream_flow_stats,
mode = stream_mode_obj,
name = stream_name,
next = stream_next_stream_name,
self_start = stream_self_start))
myprint("DEVICE PAIR %s | READABLE STREAMS FOR DIRECTION '%s':" % (device_pair['device_pair'], device_pair[direction]['id_string']), stderr_only = True)
myprint(dump_json_readable(streams), stderr_only = True)
myprint("DEVICE PAIR %s | PARSABLE STREAMS FOR DIRECTION '%s': %s" % (device_pair['device_pair'], device_pair[direction]['id_string'], dump_json_parsable(streams)), stderr_only = True)
def process_options ():
parser = argparse.ArgumentParser(usage="""
generate network traffic and report packet loss
""");
parser.add_argument('--trex-host',
dest='trex_host',
help='Hostname/IP address of the server where TRex is running',
default='localhost',
type = str
)
parser.add_argument('--debug',
dest='debug',
help='Should debugging be enabled',
action = 'store_true'
)
parser.add_argument('--mirrored-log',
dest='mirrored_log',
help='Should the logging sent to STDOUT be mirrored on STDERR',
action = 'store_true',
)
parser.add_argument('--size',
dest='frame_size',
help='L2 frame size in bytes or IMIX',
default=64
)
parser.add_argument('--device-pairs',
dest='device_pairs',
help='List of device pairs in the for A:B[,C:D][,E:F][,...]',
default="0:1",
)
parser.add_argument('--active-device-pairs',
dest='active_device_pairs',
help='List of active device pairs in the for A:B[,C:D][,E:F][,...]',
default="--",
)
parser.add_argument('--num-flows',
dest='num_flows',
help='number of unique network flows',
default=1024,
type = int,
)
parser.add_argument('--use-src-ip-flows',
dest='use_src_ip_flows',
help='implement flows by source IP',
default=1,
type = int,
)
parser.add_argument('--use-dst-ip-flows',
dest='use_dst_ip_flows',
help='implement flows by destination IP',
default=1,
type = int,
)
parser.add_argument('--use-src-mac-flows',
dest='use_src_mac_flows',
help='implement flows by source MAC',
default=1,
type = int,
)
parser.add_argument('--use-dst-mac-flows',
dest='use_dst_mac_flows',
help='implement flows by dst MAC',
default=1,
type = int,
)
parser.add_argument('--use-src-port-flows',
dest='use_src_port_flows',
help='implement flows by source port',
default=0,
type = int,
)
parser.add_argument('--use-dst-port-flows',
dest='use_dst_port_flows',
help='implement flows by destination port',
default=0,
type = int,
)
parser.add_argument('--use-protocol-flows',
dest='use_protocol_flows',
help='implement flows by IP protocol',
default=0,
type = int,
)
#parser.add_argument('--use-encap-ip-flows',
# dest='use_encap_ip_flows',
# help='implement flows by IP in the encapsulated packet',
# default=0,
# type = int,
# )
#parser.add_argument('--use-encap-mac-flows',
# dest="use_encap_mac_flows",
# help='implement flows by MAC in the encapsulated packet',
# default=0,
# type = int,
# )
parser.add_argument('--run-bidirec',
dest='run_bidirec',
help='0 = Tx on first device, 1 = Tx on both devices',
default=1,
type = int,
)
parser.add_argument('--run-revunidirec',
dest='run_revunidirec',
help='0 = Tx on first device, 1 = Tx on second devices',
default=0,
type = int,
)
parser.add_argument('--runtime',
dest='runtime',
help='trial period in seconds',
default=30,
type = int,
)
parser.add_argument('--runtime-tolerance',
dest='runtime_tolerance',
help='The percentage of time that the test is allowed in excess of the requested runtime before it is stopped',
default=5,
type = float,
)
parser.add_argument('--rate',
dest='rate',
help='rate per device',
default = 0.0,
type = float
)
parser.add_argument('--rate-unit',
dest='rate_unit',
help='rate unit per device',
default = "mpps",
choices = [ '%', 'mpps' ]
)
parser.add_argument('--packet-protocol',
dest='packet_protocol',
help='IP protocol to use when constructing packets',
default = "UDP",
choices = [ 'UDP', 'TCP' ]
)
parser.add_argument('--src-ports-list',
dest='src_ports_list',
help='comma separated list of source ports, 1 per device',
default=""
)
parser.add_argument('--dst-ports-list',
dest='dst_ports_list',
help='comma separated list of destination ports, 1 per device',
default=""
)
parser.add_argument('--dst-macs-list',
dest='dst_macs_list',
help='comma separated list of destination MACs, 1 per device',
default=""
)
parser.add_argument('--src-macs-list',
dest='src_macs_list',
help='comma separated list of src MACs, 1 per device',
default=""
)
#parser.add_argument('--encap-dst-macs-list',
# dest='encap_dst_macs_list',
# help='comma separated list of destination MACs for encapulsated network, 1 per device',
# default=""
# )
#parser.add_argument('--encap-src-macs-list',
# dest='encap_src_macs_list',
# help='comma separated list of src MACs for encapulsated network, 1 per device',
# default=""
# )
parser.add_argument('--dst-ips-list',
dest='dst_ips_list',
help='comma separated list of destination IPs 1 per device',
default=""
)
parser.add_argument('--src-ips-list',
dest='src_ips_list',
help='comma separated list of src IPs, 1 per device',
default=""
)
parser.add_argument('--vlan-ids-list',
dest='vlan_ids_list',
help='A list of VLAN IDs to use for Tx, one per device',
default = "",
)
#parser.add_argument('--encap-dst-ips-list',
# dest='encap_dst_macs_list',
# help='comma separated list of destination IPs for excapsulated network, 1 per device',
# default=""
# )
#parser.add_argument('--encap-src-ips-list',
# dest='encap_src_macs_list',
# help='comma separated list of src IPs for excapsulated network,, 1 per device',
# default=""
# )
parser.add_argument('--measure-latency',
dest='measure_latency',
help='Collect latency statistics or not',
default = 1,
type = int
)
parser.add_argument('--latency-rate',
dest='latency_rate',
help='Rate to send latency packets per second',
default = 1000,
type = int
)
parser.add_argument('--stream-mode',
dest='stream_mode',
help='How the packet streams are constructed',
default = "continuous",
choices = [ 'continuous', 'segmented' ]
)
parser.add_argument('--skip-hw-flow-stats',
dest='skip_hw_flow_stats',
help='Should hardware flow stat support be used',
action = 'store_true',
)
parser.add_argument('--enable-segment-monitor',
dest='enable_segment_monitor',
help='Should individual segments be monitored for pass/fail status relative to --max-loss-pct in order to short circuit trials',
action = 'store_true',
)
parser.add_argument('--max-loss-pct',
dest='max_loss_pct',
help='Maximum percentage of packet loss',
default=0.002,
type = float
)
parser.add_argument('--disable-flow-cache',
dest='enable_flow_cache',
help='Force disablement of the flow cache',
action = 'store_false',
)
parser.add_argument('--send-teaching-warmup',
dest='send_teaching_warmup',
help='Send teaching packets from the receiving port during a warmup phase',
action = 'store_true',
)
parser.add_argument('--send-teaching-measurement',
dest='send_teaching_measurement',
help='Send teaching packetsfrom the receiving port during the measurement phase',
action = 'store_true',
)
parser.add_argument('--teaching-measurement-interval',
dest='teaching_measurement_interval',
help='Interval to send teaching packets on from the receiving port during the measurement phase in seconds',
default = 10.0,
type = float
)
parser.add_argument('--teaching-warmup-packet-rate',
dest='teaching_warmup_packet_rate',
help='Rate to send teaching packets at from the receiving port in packets per second (pps) during the warmup',
default = 1000,
type = int
)
parser.add_argument('--teaching-measurement-packet-rate',
dest='teaching_measurement_packet_rate',
help='Rate to send teaching packets at from the receiving port in packets per second (pps) during the measurement phase',
default = 1000,
type = int
)
parser.add_argument('--teaching-warmup-packet-type',
dest='teaching_warmup_packet_type',
help='Type of packet to send for the teaching warmup from the receiving port',
default = 'garp',
choices = ['garp', 'icmp', 'generic']
)
parser.add_argument('--teaching-measurement-packet-type',
dest='teaching_measurement_packet_type',
help='Type of packet to send for the teaching measurement from the receiving port',
default = 'garp',
choices = ['garp', 'icmp', 'generic']
)
parser.add_argument('--no-promisc',
dest='no_promisc',
help='Do not use promiscuous mode for network interfaces (usually needed for virtual-functions)',
action = 'store_true',
)
t_global.args = parser.parse_args();
if t_global.args.frame_size == "IMIX":
t_global.args.frame_size = "imix"
if t_global.args.active_device_pairs == '--':
t_global.args.active_device_pairs = t_global.args.device_pairs
if t_global.args.num_flows > 10000 and t_global.args.enable_flow_cache:
t_global.args.enable_flow_cache = False
myprint("NOTE: Flow caching disabled due to high flow count which will cause higher resource requirements.")
else:
if t_global.args.num_flows and not t_global.args.enable_flow_cache:
myprint("NOTE: User disablement of flow caching will cause higher resource requirements.")
t_global.args.flow_mods = create_flow_mod_object(use_src_mac_flows = t_global.args.use_src_mac_flows,
use_dst_mac_flows = t_global.args.use_dst_mac_flows,
use_src_ip_flows = t_global.args.use_src_ip_flows,
use_dst_ip_flows = t_global.args.use_dst_ip_flows,
use_src_port_flows = t_global.args.use_src_port_flows,
use_dst_port_flows = t_global.args.use_dst_port_flows,
use_protocol_flows = t_global.args.use_protocol_flows)
myprint(t_global.args)
def segment_monitor(connection, device_pairs, run_ports, normal_exit_event, early_exit_event):
try:
myprint("Segment Monitor: Running")
directions = [ '->', '<-' ]
for device_pair in device_pairs:
for direction in directions:
if device_pair[direction]['active']:
device_pair[direction]['pg_ids']['default']['current_index'] = 2
if t_global.args.measure_latency:
device_pair[direction]['pg_ids']['latency']['current_index'] = 2
analyzed_pg_ids = dict()
while not normal_exit_event.is_set():
time.sleep(1)
#myprint("")
for device_pair in device_pairs:
#myprint("Analyzing device pair %s" % (device_pair['device_pair']))
pg_id_list = []
pg_id_details = dict()
for direction in directions:
if device_pair[direction]['active']:
if device_pair[direction]['pg_ids']['default']['current_index'] <= (len(device_pair[direction]['pg_ids']['default']['list']) - 1):
#myprint("Found default candidate %d for '%s'" % (device_pair['a']['pg_ids']['default']['list'][device_pair['a']['pg_ids']['default']['current_index']], direction))
pg_id_list.append(device_pair[direction]['pg_ids']['default']['list'][device_pair[direction]['pg_ids']['default']['current_index']])
pg_id_details[str(device_pair[direction]['pg_ids']['default']['list'][device_pair[direction]['pg_ids']['default']['current_index']])] = dict()
pg_id_details[str(device_pair[direction]['pg_ids']['default']['list'][device_pair[direction]['pg_ids']['default']['current_index']])]['direction'] = direction
pg_id_details[str(device_pair[direction]['pg_ids']['default']['list'][device_pair[direction]['pg_ids']['default']['current_index']])]['type'] = 'default'
if t_global.args.measure_latency and device_pair[direction]['pg_ids']['latency']['current_index'] <= (len(device_pair[direction]['pg_ids']['latency']['list']) - 1):
#myprint("Found latency candidate %d for '%s'" % (device_pair['a']['pg_ids']['latency']['list'][device_pair['a']['pg_ids']['latency']['current_index']], direction))
pg_id_list.append(device_pair[direction]['pg_ids']['latency']['list'][device_pair[direction]['pg_ids']['latency']['current_index']])
pg_id_details[str(device_pair[direction]['pg_ids']['latency']['list'][device_pair[direction]['pg_ids']['latency']['current_index']])] = dict()
pg_id_details[str(device_pair[direction]['pg_ids']['latency']['list'][device_pair[direction]['pg_ids']['latency']['current_index']])]['direction'] = direction
pg_id_details[str(device_pair[direction]['pg_ids']['latency']['list'][device_pair[direction]['pg_ids']['latency']['current_index']])]['type'] = 'latency'
if len(pg_id_list):
pg_id_to_analyze = dict()
pg_id_to_analyze_list = []
pg_id_stats = connection.get_pgid_stats(pgid_list = pg_id_list)
for pg_id in pg_id_list:
if pg_id_stats['flow_stats'][pg_id]['tx_pkts']['total'] > 0 and not str(pg_id - 2) in analyzed_pg_ids:
#myprint("Advancing current_index for pg_id=%d (direction='%s' and type='%s')" % (pg_id, pg_id_details[str(pg_id)]["direction"], pg_id_details[str(pg_id)]['type']))
device_pair[pg_id_details[str(pg_id)]["direction"]]['pg_ids'][pg_id_details[str(pg_id)]['type']]['current_index'] += 1
pg_id_to_analyze_list.append(pg_id - 2)
pg_id_to_analyze[str(pg_id - 2)] = copy.deepcopy(pg_id_details[str(pg_id)])
if len(pg_id_to_analyze_list):
pg_id_stats = connection.get_pgid_stats(pgid_list = pg_id_to_analyze_list)
for pg_id in pg_id_to_analyze_list:
analyzed_pg_ids[str(pg_id)] = True
loss_ratio = 100.0 * (1.0 - float(pg_id_stats['flow_stats'][pg_id]['rx_pkts']['total']) / float(pg_id_stats['flow_stats'][pg_id]['tx_pkts']['total']))
#myprint("Analyzing pg_id=%d with rx_pkts=%d, tx_pkts=%d, and loss_ratio=%f" % (pg_id,float(pg_id_stats['flow_stats'][pg_id]['rx_pkts']['total']), float(pg_id_stats['flow_stats'][pg_id]['tx_pkts']['total']), loss_ratio))
if loss_ratio > t_global.args.max_loss_pct:
normal_exit_event.set()
early_exit_event.set()
myprint("Segment Monitor: device pair %s with pg_id=%d (direction=%s/type=%s) failed max loss percentage requirement: %f%% > %f%% (TX:%d/RX:%d)" %
(
device_pair['device_pair'],
pg_id,
pg_id_to_analyze[str(pg_id)]["direction"],
pg_id_to_analyze[str(pg_id)]["type"],
loss_ratio,
t_global.args.max_loss_pct,
pg_id_stats['flow_stats'][pg_id]['tx_pkts']['total'],
pg_id_stats['flow_stats'][pg_id]['rx_pkts']['total']
)
)
except TRexError as e:
myprint("Segment Monitor: TREXERROR: %s" % e)
except StandardError as e:
myprint("Segment Monitor: STANDARDERROR: %s" % e)
finally:
if early_exit_event.is_set():
myprint("Segment Monitor: Exiting early")
connection.stop(ports = run_ports)
else:
myprint("Segment Monitor: Did not detect any segment failures")
return(0)
def main():
process_options()
directions = [ '->', '<-' ]
packet_values = { 'ports': { 'src': 32768,
'dst': 53 },
'macs': { 'src': None,
'dst': None },
'ips': { 'src': None,
'dst': None },
'vlan': None }
pg_id_values = { "default": { 'available': None,
'start_index': None,
'list': [] },
"latency": { 'available': None,
'start_index': None,
'list': [] } }
claimed_device_pairs = []
for device_pair in t_global.args.device_pairs.split(','):
ports = device_pair.split(':')
port_a = int(ports[0])
port_b = int(ports[1])
claimed_device_pairs.extend([port_a, port_b])
all_ports = []
unidirec_ports = []
revunidirec_ports = []
unidirec_teaching_ports = []
revunidirec_teaching_ports = []
device_pairs = []
for device_pair in t_global.args.active_device_pairs.split(','):
ports = device_pair.split(':')
port_a = int(ports[0])
port_b = int(ports[1])
string = ':'
if t_global.args.run_bidirec:
string = '<->'
elif t_global.args.run_revunidirec:
string = '<-'
else:
string = '->'
myprint("Configuring device pair: %d%s%d" % (port_a, string, port_b))
all_ports.extend([port_a, port_b])
unidirec_ports.append(port_a)
revunidirec_ports.append(port_b)
if t_global.args.send_teaching_warmup or t_global.args.send_teaching_measurement:
unidirec_teaching_ports.append(port_b)
revunidirec_teaching_ports.append(port_a)
device_pairs.append({ '->': { 'ports': { 'tx': port_a,
'rx': port_b },
'id_string': "%s->%s" % (port_a, port_b),
'packet_values': copy.deepcopy(packet_values),
'pg_ids': copy.deepcopy(pg_id_values),
'traffic_profile': [],
'teaching_warmup_traffic_profile': [],
'teaching_measurement_traffic_profile': [],
'active': False },
'<-': { 'ports': { 'tx': port_b,
'rx': port_a },
'id_string': "%s->%s" % (port_b, port_a),
'packet_values': copy.deepcopy(packet_values),
'pg_ids': copy.deepcopy(pg_id_values),
'traffic_profile': [],
'teaching_warmup_traffic_profile': [],
'teaching_measurement_traffic_profile': [],
'active': False },
'max_default_pg_ids': 0,
'max_latency_pg_ids': 0,
'device_pair': device_pair })
c = STLClient(server = t_global.args.trex_host)
passed = True
stats = 0
return_value = 1
active_ports = 0
if t_global.args.run_bidirec:
active_ports = len(all_ports)
for device_pair in device_pairs:
device_pair['->']['active'] = True
device_pair['<-']['active'] = True
else:
active_ports = len(unidirec_ports)
if t_global.args.send_teaching_warmup or t_global.args.send_teaching_measurement:
active_ports /= 2
for device_pair in device_pairs:
if t_global.args.run_revunidirec:
device_pair['<-']['active'] = True
else:
device_pair['->']['active'] = True
myprint("Active TX Ports: %d" % active_ports)
try:
if t_global.args.debug:
# turn this on for some information
c.set_verbose("debug")
# connect to server
myprint("Establishing connection to TRex server...")
c.connect()
myprint("Connection established")
if t_global.args.run_bidirec and t_global.args.run_revunidirec:
raise ValueError("It does not make sense for both --run-bidirec=1 and --run-revunidirec=1")
# prepare our ports
c.acquire(ports = claimed_device_pairs, force=True)
c.reset(ports = claimed_device_pairs)
if t_global.args.no_promisc:
c.set_port_attr(ports = all_ports)
else:
c.set_port_attr(ports = all_ports, promiscuous = True)
port_info = c.get_port_info(ports = claimed_device_pairs)
myprint("READABLE PORT INFO:", stderr_only = True)
myprint(dump_json_readable(port_info), stderr_only = True)
myprint("PARSABLE PORT INFO: %s" % dump_json_parsable(port_info), stderr_only = True)
port_speed_verification_fail = False
for device_pair in device_pairs:
if port_info[device_pair['->']['ports']['tx']]['speed'] == 0:
port_speed_verification_fail = True
myprint(error("Device with port index = %d failed speed verification test" % (device_pair['->']['ports']['tx'])))
if port_info[device_pair['<-']['ports']['tx']]['speed'] == 0:
port_speed_verification_fail = True
myprint(error("Device with port index = %d failed speed verification test" % (device_pair['<-']['ports']['tx'])))
device_pair['->']['packet_values']['macs']['src'] = port_info[device_pair['->']['ports']['tx']]['src_mac']
device_pair['->']['packet_values']['macs']['dst'] = port_info[device_pair['->']['ports']['rx']]['src_mac']
device_pair['<-']['packet_values']['macs']['src'] = port_info[device_pair['<-']['ports']['tx']]['src_mac']
device_pair['<-']['packet_values']['macs']['dst'] = port_info[device_pair['<-']['ports']['rx']]['src_mac']
if port_info[device_pair['->']['ports']['tx']]['src_ipv4'] != "-":
device_pair['->']['packet_values']['ips']['src'] = port_info[device_pair['->']['ports']['tx']]['src_ipv4']
device_pair['<-']['packet_values']['ips']['dst'] = port_info[device_pair['->']['ports']['tx']]['src_ipv4']
else:
ip_address = "%d.%d.%d.%d" % (device_pair['->']['ports']['tx']+1, device_pair['->']['ports']['tx']+1, device_pair['->']['ports']['tx']+1, device_pair['->']['ports']['tx']+1)
device_pair['->']['packet_values']['ips']['src'] = ip_address
device_pair['<-']['packet_values']['ips']['dst'] = ip_address
if port_info[device_pair['<-']['ports']['tx']]['src_ipv4'] != "-":
device_pair['->']['packet_values']['ips']['dst'] = port_info[device_pair['<-']['ports']['tx']]['src_ipv4']
device_pair['<-']['packet_values']['ips']['src'] = port_info[device_pair['<-']['ports']['tx']]['src_ipv4']
else:
ip_address = "%d.%d.%d.%d" % (device_pair['<-']['ports']['tx']+1, device_pair['<-']['ports']['tx']+1, device_pair['<-']['ports']['tx']+1, device_pair['<-']['ports']['tx']+1)
device_pair['->']['packet_values']['ips']['dst'] = ip_address
device_pair['<-']['packet_values']['ips']['src'] = ip_address
if port_speed_verification_fail:
raise RuntimeError("Failed port speed verification")
if t_global.args.flow_mods['port']['src'] or t_global.args.flow_mods['port']['dst']:
if t_global.args.num_flows >= 1000:
if ((t_global.args.num_flows % 1000) != 0) and ((t_global.args.num_flows % 1024) != 0):
raise ValueError("when source of destination port flows are enabled the number of flows must be divisible by 1000 or 1024")
if len(t_global.args.src_ports_list):
src_ports = t_global.args.src_ports_list.split(",")
if len(src_ports) < active_ports:
raise ValueError("--src-ports-list should be a comma separated list of at least %d source port(s)" % active_ports)
index = 0
for device_pair in device_pairs:
for direction in directions:
if device_pair[direction]['active']:
device_pair[direction]['packet_values']['ports']['src'] = int(src_ports[index])
index += 1
if len(t_global.args.dst_ports_list):
dst_ports = t_global.args.dst_ports_list.split(",")
if len(dst_ports) < active_ports:
raise ValueError("--dst-ports-list should be a comma separated list of at least %d destination port(s)" % active_ports)
index = 0
for device_pair in device_pairs:
for direction in directions:
if device_pair[direction]['active']:
device_pair[direction]['packet_values']['ports']['dst'] = int(dst_ports[index])
index += 1
if len(t_global.args.src_macs_list):
src_macs = t_global.args.src_macs_list.split(",")
if len(src_macs) < active_ports:
raise ValueError("--src-macs-list should be a comma separated list of at least %d MAC address(es)" % active_ports)
index = 0
for device_pair in device_pairs:
for direction in directions:
if device_pair[direction]['active']:
device_pair[direction]['packet_values']['macs']['src'] = src_macs[index]
index += 1
if len(t_global.args.dst_macs_list):
dst_macs = t_global.args.dst_macs_list.split(",")
if len(dst_macs) < active_ports:
raise ValueError("--dst-macs-list should be a comma separated list of at least %d MAC address(es)" % active_ports)
index = 0
for device_pair in device_pairs:
for direction in directions:
if device_pair[direction]['active']:
device_pair[direction]['packet_values']['macs']['dst'] = dst_macs[index]
index += 1
if len(t_global.args.src_ips_list):
src_ips = t_global.args.src_ips_list.split(",")
if len(src_ips) < active_ports:
raise ValueError("--src-ips-list should be a comma separated list of at least %d IP address(es)" % active_ports)
index = 0
for device_pair in device_pairs:
for direction in directions:
if device_pair[direction]['active']:
device_pair[direction]['packet_values']['ips']['src'] = src_ips[index]
index += 1
if len(t_global.args.dst_ips_list):
dst_ips = t_global.args.dst_ips_list.split(",")
if len(dst_ips) < active_ports:
raise ValueError("--dst-ips-list should be a comma separated list of at least %d IP address(es)" % active_ports)
index = 0
for device_pair in device_pairs:
for direction in directions:
if device_pair[direction]['active']:
device_pair[direction]['packet_values']['ips']['dst'] = dst_ips[index]