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
|
# Copyright (c) 2024 Cisco and/or its affiliates.
#
# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
#
# Licensed under the Apache License 2.0 or
# GNU General Public License v2.0 or later; you may not use this file
# except in compliance with one of these Licenses. You
# may obtain a copy of the Licenses at:
#
# http://www.apache.org/licenses/LICENSE-2.0
# https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
#
# Note: If this file is linked with Scapy, which is GPLv2+, your use of it
# must be under GPLv2+. If at any point in the future it is no longer linked
# with Scapy (or other GPLv2+ licensed software), you are free to choose
# Apache 2.
#
# 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.
"""Stream profile for T-rex traffic generator.
Stream profile:
- Three parallel bi-directional streams sent as W --> E and E --> W
at the same time.
- Packet: ETH / IPv6 /
"""
from trex.stl.api import *
from profile_trex_stateless_scale_class import TrafficStreamsScaleClass
class TrafficStreams(TrafficStreamsScaleClass):
"""Stream profile."""
def __init__(self):
"""Initialization and setting of streams' parameters."""
super(TrafficStreamsScaleClass, self).__init__()
self.pkt_data = [
# Direction W --> E:
{
"src_start_ip": "2100::1",
"dst_start_ip": "2200::0",
"dst_end_ip": "2200::F:423F",
},
# Direction W --> E:
{
"src_start_ip": "2300::1",
"dst_start_ip": "2400::0",
"dst_end_ip": "2400::F:423F",
},
# Direction W --> E:
{
"src_start_ip": "2500::1",
"dst_start_ip": "2600::0",
"dst_end_ip": "2600::F:423F",
},
# Direction E --> W:
{
"src_start_ip": "2200::1",
"dst_start_ip": "2100::0",
"dst_end_ip": "2100::F:423F",
},
# Direction E --> W:
{
"src_start_ip": "2400::1",
"dst_start_ip": "2300::0",
"dst_end_ip": "2300::F:423F",
},
# Direction E --> W:
{
"src_start_ip": "2600::1",
"dst_start_ip": "2500::0",
"dst_end_ip": "2500::F:423F",
}
]
self.pkt_base = []
self.pkt_vm = []
def define_packets(self):
"""Defines the packets to be sent from the traffic generator.
Packet definition: | ETH | IPv6 |
:returns: Packets to be sent from the traffic generator.
:rtype: tuple
"""
for i in range(len(self.pkt_data)):
base, count = self._get_start_end_ipv6(
self.pkt_data[i]["dst_start_ip"],
self.pkt_data[i]["dst_end_ip"]
)
self.pkt_base.append(
Ether() /
IPv6(
src=self.pkt_data[i]["src_start_ip"],
dst=self.pkt_data[i]["dst_start_ip"]
)
)
self.pkt_vm.append(
STLScVmRaw(
[
STLVmFlowVarRepeatableRandom(
name="ipv6_dst",
min_value=base,
max_value=base + count,
size=8,
seed=i + 1,
limit=(2**24 - 1)
),
STLVmWrFlowVar(
fv_name="ipv6_dst",
pkt_offset="IPv6.dst",
offset_fixup=8
)
]
)
)
return self.pkt_base, self.pkt_vm
def register():
"""Register this traffic profile to T-rex.
Do not change this function.
:return: Traffic streams.
:rtype: Object
"""
return TrafficStreams()
|
