1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
|
# Copyright (c) 2016-2019 Intel Corporation
#
# 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
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import collections
from yardstick.common import utils
from yardstick.network_services.traffic_profile import base as tp_base
from yardstick.network_services.traffic_profile import trex_traffic_profile
LOG = logging.getLogger(__name__)
class IXIARFC2544Profile(trex_traffic_profile.TrexProfile):
UPLINK = 'uplink'
DOWNLINK = 'downlink'
DROP_PERCENT_ROUND = 6
STATUS_SUCCESS = "Success"
STATUS_FAIL = "Failure"
def __init__(self, yaml_data):
super(IXIARFC2544Profile, self).__init__(yaml_data)
self.rate = self.config.frame_rate
self.rate_unit = self.config.rate_unit
self.full_profile = {}
def _get_ip_and_mask(self, ip_range):
_ip_range = ip_range.split('-')
if len(_ip_range) == 1:
return _ip_range[0], None
mask = utils.get_mask_from_ip_range(_ip_range[0], _ip_range[1])
return _ip_range[0], mask
def _get_fixed_and_mask(self, port_range):
_port_range = str(port_range).split('-')
if len(_port_range) == 1:
return int(_port_range[0]), 0
return int(_port_range[0]), int(_port_range[1])
def _get_ixia_traffic_profile(self, profile_data, mac=None):
mac = {} if mac is None else mac
result = {}
for traffickey, values in profile_data.items():
if not traffickey.startswith((self.UPLINK, self.DOWNLINK)):
continue
# values should be single-item dict, so just grab the first item
try:
key, value = next(iter(values.items()))
except StopIteration:
result[traffickey] = {}
continue
port_id = value.get('id', 1)
port_index = port_id - 1
result[traffickey] = {
'bidir': False,
'id': port_id,
'rate': self.rate,
'rate_unit': self.rate_unit,
'outer_l2': {},
'outer_l3': {},
'outer_l4': {},
}
frame_rate = value.get('frame_rate')
if frame_rate:
flow_rate, flow_rate_unit = self.config.parse_rate(frame_rate)
result[traffickey]['rate'] = flow_rate
result[traffickey]['rate_unit'] = flow_rate_unit
outer_l2 = value.get('outer_l2')
if outer_l2:
result[traffickey]['outer_l2'].update({
'framesize': outer_l2.get('framesize'),
'framesPerSecond': True,
'QinQ': outer_l2.get('QinQ'),
'srcmac': mac.get('src_mac_{}'.format(port_index)),
'dstmac': mac.get('dst_mac_{}'.format(port_index)),
})
if value.get('outer_l3v4'):
outer_l3 = value['outer_l3v4']
src_key, dst_key = 'srcip4', 'dstip4'
else:
outer_l3 = value.get('outer_l3v6')
src_key, dst_key = 'srcip6', 'dstip6'
if outer_l3:
srcip = srcmask = dstip = dstmask = None
if outer_l3.get(src_key):
srcip, srcmask = self._get_ip_and_mask(outer_l3[src_key])
if outer_l3.get(dst_key):
dstip, dstmask = self._get_ip_and_mask(outer_l3[dst_key])
result[traffickey]['outer_l3'].update({
'count': outer_l3.get('count', 1),
'dscp': outer_l3.get('dscp'),
'ttl': outer_l3.get('ttl'),
'srcseed': outer_l3.get('srcseed', 1),
'dstseed': outer_l3.get('dstseed', 1),
'srcip': srcip,
'dstip': dstip,
'srcmask': srcmask,
'dstmask': dstmask,
'type': key,
'proto': outer_l3.get('proto'),
'priority': outer_l3.get('priority')
})
outer_l4 = value.get('outer_l4')
if outer_l4:
src_port = src_port_mask = dst_port = dst_port_mask = None
if outer_l4.get('srcport'):
src_port, src_port_mask = (
self._get_fixed_and_mask(outer_l4['srcport']))
if outer_l4.get('dstport'):
dst_port, dst_port_mask = (
self._get_fixed_and_mask(outer_l4['dstport']))
result[traffickey]['outer_l4'].update({
'srcport': src_port,
'dstport': dst_port,
'srcportmask': src_port_mask,
'dstportmask': dst_port_mask,
'count': outer_l4.get('count', 1),
'seed': outer_l4.get('seed', 1),
})
return result
def _ixia_traffic_generate(self, traffic, ixia_obj, traffic_gen):
ixia_obj.update_frame(traffic, self.config.duration)
ixia_obj.update_ip_packet(traffic)
ixia_obj.update_l4(traffic)
self._update_traffic_tracking_options(traffic_gen)
ixia_obj.start_traffic()
def _update_traffic_tracking_options(self, traffic_gen):
traffic_gen.update_tracking_options()
def update_traffic_profile(self, traffic_generator):
def port_generator():
for vld_id, intfs in sorted(traffic_generator.networks.items()):
if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
continue
profile_data = self.params.get(vld_id)
if not profile_data:
continue
self.profile_data = profile_data
self.full_profile.update({vld_id: self.profile_data})
for intf in intfs:
yield traffic_generator.vnfd_helper.port_num(intf)
self.ports = [port for port in port_generator()]
def _get_framesize(self):
framesizes = []
traffic = self._get_ixia_traffic_profile(self.full_profile)
for v in traffic.values():
framesize = v['outer_l2']['framesize']
for size in (s for s, w in framesize.items() if int(w) != 0):
framesizes.append(size)
if len(set(framesizes)) == 0:
return ''
elif len(set(framesizes)) == 1:
return framesizes[0]
return 'IMIX'
def execute_traffic(self, traffic_generator, ixia_obj=None, mac=None):
mac = {} if mac is None else mac
first_run = self.first_run
if self.first_run:
self.first_run = False
self.pg_id = 0
self.max_rate = self.rate
self.min_rate = 0.0
else:
self.rate = self._get_next_rate()
traffic = self._get_ixia_traffic_profile(self.full_profile, mac)
self._ixia_traffic_generate(traffic, ixia_obj, traffic_generator)
return first_run
# pylint: disable=unused-argument
def get_drop_percentage(self, samples, tol_min, tolerance, precision,
resolution, first_run=False, tc_rfc2544_opts=None):
completed = False
drop_percent = 100.0
num_ifaces = len(samples)
duration = self.config.duration
in_packets_sum = sum(
[samples[iface]['in_packets'] for iface in samples])
out_packets_sum = sum(
[samples[iface]['out_packets'] for iface in samples])
rx_throughput = round(float(in_packets_sum) / duration, 3)
tx_throughput = round(float(out_packets_sum) / duration, 3)
packet_drop = abs(out_packets_sum - in_packets_sum)
try:
drop_percent = round(
(packet_drop / float(out_packets_sum)) * 100,
self.DROP_PERCENT_ROUND)
except ZeroDivisionError:
LOG.info('No traffic is flowing')
if first_run:
completed = True if drop_percent <= tolerance else False
if (first_run and
self.rate_unit == tp_base.TrafficProfileConfig.RATE_FPS):
self.rate = float(out_packets_sum) / duration / num_ifaces
if drop_percent > tolerance:
self.max_rate = self.rate
elif drop_percent < tol_min:
self.min_rate = self.rate
else:
completed = True
last_rate = self.rate
next_rate = self._get_next_rate()
if abs(next_rate - self.rate) < resolution:
LOG.debug("rate=%s, next_rate=%s, resolution=%s", self.rate,
next_rate, resolution)
# stop test if the difference between the rate transmission
# in two iterations is smaller than the value of the resolution
completed = True
LOG.debug("tolerance=%s, tolerance_precision=%s drop_percent=%s "
"completed=%s", tolerance, precision, drop_percent,
completed)
latency_ns_avg = float(
sum([samples[iface]['Store-Forward_Avg_latency_ns']
for iface in samples])) / num_ifaces
latency_ns_min = float(
sum([samples[iface]['Store-Forward_Min_latency_ns']
for iface in samples])) / num_ifaces
latency_ns_max = float(
sum([samples[iface]['Store-Forward_Max_latency_ns']
for iface in samples])) / num_ifaces
samples['Status'] = self.STATUS_FAIL
if round(drop_percent, precision) <= tolerance:
samples['Status'] = self.STATUS_SUCCESS
samples['TxThroughput'] = tx_throughput
samples['RxThroughput'] = rx_throughput
samples['DropPercentage'] = drop_percent
samples['latency_ns_avg'] = latency_ns_avg
samples['latency_ns_min'] = latency_ns_min
samples['latency_ns_max'] = latency_ns_max
samples['Rate'] = last_rate
samples['PktSize'] = self._get_framesize()
return completed, samples
class IXIARFC2544PppoeScenarioProfile(IXIARFC2544Profile):
"""Class handles BNG PPPoE scenario tests traffic profile"""
def __init__(self, yaml_data):
super(IXIARFC2544PppoeScenarioProfile, self).__init__(yaml_data)
self.full_profile = collections.OrderedDict()
def _get_flow_groups_params(self):
flows_data = [key for key in self.params.keys()
if key.split('_')[0] in [self.UPLINK, self.DOWNLINK]]
for i in range(len(flows_data)):
uplink = '_'.join([self.UPLINK, str(i)])
downlink = '_'.join([self.DOWNLINK, str(i)])
if uplink in flows_data:
self.full_profile.update({uplink: self.params[uplink]})
if downlink in flows_data:
self.full_profile.update({downlink: self.params[downlink]})
def update_traffic_profile(self, traffic_generator):
networks = collections.OrderedDict()
# Sort network interfaces pairs
for i in range(len(traffic_generator.networks)):
uplink = '_'.join([self.UPLINK, str(i)])
downlink = '_'.join([self.DOWNLINK, str(i)])
if uplink in traffic_generator.networks:
networks[uplink] = traffic_generator.networks[uplink]
if downlink in traffic_generator.networks:
networks[downlink] = traffic_generator.networks[downlink]
def port_generator():
for intfs in networks.values():
for intf in intfs:
yield traffic_generator.vnfd_helper.port_num(intf)
self._get_flow_groups_params()
self.ports = [port for port in port_generator()]
def _get_prio_flows_drop_percentage(self, stats):
drop_percent = 100
for prio_id in stats:
prio_flow = stats[prio_id]
sum_packet_drop = abs(prio_flow['out_packets'] - prio_flow['in_packets'])
try:
drop_percent = round(
(sum_packet_drop / float(prio_flow['out_packets'])) * 100,
self.DROP_PERCENT_ROUND)
except ZeroDivisionError:
LOG.info('No traffic is flowing')
prio_flow['DropPercentage'] = drop_percent
return stats
def _get_summary_pppoe_subs_counters(self, samples):
result = {}
keys = ['sessions_up',
'sessions_down',
'sessions_not_started',
'sessions_total']
for key in keys:
result[key] = \
sum([samples[port][key] for port in samples
if key in samples[port]])
return result
def get_drop_percentage(self, samples, tol_min, tolerance, precision,
resolution, first_run=False, tc_rfc2544_opts=None):
completed = False
sum_drop_percent = 100
num_ifaces = len(samples)
duration = self.config.duration
last_rate = self.rate
priority_stats = samples.pop('priority_stats')
priority_stats = self._get_prio_flows_drop_percentage(priority_stats)
summary_subs_stats = self._get_summary_pppoe_subs_counters(samples)
in_packets_sum = sum(
[samples[iface]['in_packets'] for iface in samples])
out_packets_sum = sum(
[samples[iface]['out_packets'] for iface in samples])
rx_throughput = round(float(in_packets_sum) / duration, 3)
tx_throughput = round(float(out_packets_sum) / duration, 3)
sum_packet_drop = abs(out_packets_sum - in_packets_sum)
try:
sum_drop_percent = round(
(sum_packet_drop / float(out_packets_sum)) * 100,
self.DROP_PERCENT_ROUND)
except ZeroDivisionError:
LOG.info('No traffic is flowing')
latency_ns_avg = float(
sum([samples[iface]['Store-Forward_Avg_latency_ns']
for iface in samples])) / num_ifaces
latency_ns_min = float(
sum([samples[iface]['Store-Forward_Min_latency_ns']
for iface in samples])) / num_ifaces
latency_ns_max = float(
sum([samples[iface]['Store-Forward_Max_latency_ns']
for iface in samples])) / num_ifaces
samples['TxThroughput'] = tx_throughput
samples['RxThroughput'] = rx_throughput
samples['DropPercentage'] = sum_drop_percent
samples['latency_ns_avg'] = latency_ns_avg
samples['latency_ns_min'] = latency_ns_min
samples['latency_ns_max'] = latency_ns_max
samples['priority'] = priority_stats
samples['Rate'] = last_rate
samples['PktSize'] = self._get_framesize()
samples.update(summary_subs_stats)
if tc_rfc2544_opts:
priority = tc_rfc2544_opts.get('priority')
if priority:
drop_percent = samples['priority'][priority]['DropPercentage']
else:
drop_percent = sum_drop_percent
else:
drop_percent = sum_drop_percent
if first_run:
completed = True if drop_percent <= tolerance else False
if (first_run and
self.rate_unit == tp_base.TrafficProfileConfig.RATE_FPS):
self.rate = float(out_packets_sum) / duration / num_ifaces
if drop_percent > tolerance:
self.max_rate = self.rate
elif drop_percent < tol_min:
self.min_rate = self.rate
else:
completed = True
next_rate = self._get_next_rate()
if abs(next_rate - self.rate) < resolution:
LOG.debug("rate=%s, next_rate=%s, resolution=%s", self.rate,
next_rate, resolution)
# stop test if the difference between the rate transmission
# in two iterations is smaller than the value of the resolution
completed = True
LOG.debug("tolerance=%s, tolerance_precision=%s drop_percent=%s "
"completed=%s", tolerance, precision, drop_percent,
completed)
samples['Status'] = self.STATUS_FAIL
if round(drop_percent, precision) <= tolerance:
samples['Status'] = self.STATUS_SUCCESS
return completed, samples
|