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
|
# Copyright (c) 2020 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:
#
# 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.
"""Traffic profile for T-rex advanced stateful (astf) traffic generator.
Traffic profile:
- Two streams sent in directions 0 --> 1 (client -> server, requests) and
1 --> 0 (server -> client, responses) at the same time.
- Packet: ETH / IP / TCP
- Direction 0 --> 1:
- Source IP address range: 172.16.0.0 - 172.19.255.255
- Destination IP address range: 20.16.0.0 - 20.19.255.255
- Direction 1 --> 0:
- Source IP address range: destination IP address from packet received
on port 1
- Destination IP address range: source IP address from packet received
on port 1
This is a profile for PPS tests, it combines TCP connect and data transfer.
No delays, server response waits for full request.
"""
from trex.astf.api import *
from profile_trex_astf_base_class import TrafficProfileBaseClass
class TrafficProfile(TrafficProfileBaseClass):
"""Traffic profile."""
def __init__(self):
"""Initialization and setting of profile parameters."""
super(TrafficProfileBaseClass, self).__init__()
# IPs used in packet headers.
self.p1_src_start_ip = u"172.16.0.0"
self.p1_src_end_ip = u"172.19.255.255"
self.p1_dst_start_ip = u"20.16.0.0"
self.p1_dst_end_ip = u"20.19.255.255"
# Headers length; not used in this profile, just for the record of
# header length for TCP packet with 0B payload
self.headers_size = 58 # 14B l2 + 20B ipv4 + 24B tcp incl. 4B options
self.data_size = 11111
def define_profile(self):
"""Define profile to be used by advanced stateful traffic generator.
This method MUST return:
return ip_gen, templates, None
:returns: IP generator and profile templates for ASTFProfile().
:rtype: tuple
"""
# client commands
prog_c = ASTFProgram()
prog_c.connect()
prog_c.send(u"1" * self.data_size)
prog_c.recv(self.data_size)
# server commands
prog_s = ASTFProgram()
prog_s.accept()
prog_c.recv(self.data_size)
prog_c.send(u"1" * self.data_size)
# ip generators
ip_gen_c = ASTFIPGenDist(
ip_range=[self.p1_src_start_ip, self.p1_src_end_ip],
distribution=u"seq"
)
ip_gen_s = ASTFIPGenDist(
ip_range=[self.p1_dst_start_ip, self.p1_dst_end_ip],
distribution=u"seq"
)
ip_gen = ASTFIPGen(
glob=ASTFIPGenGlobal(ip_offset=u"0.0.0.1"),
dist_client=ip_gen_c,
dist_server=ip_gen_s
)
# server association
s_assoc = ASTFAssociation(rules=ASTFAssociationRule(port=8080))
# template
temp_c = ASTFTCPClientTemplate(
program=prog_c,
ip_gen=ip_gen,
limit=16515072, # TODO: set via input parameter
port=8080
)
temp_s = ASTFTCPServerTemplate(program=prog_s, assoc=s_assoc)
template = ASTFTemplate(client_template=temp_c, server_template=temp_s)
return ip_gen, template, None
def register():
"""Register this traffic profile to T-Rex.
Do not change this function.
:return: Traffic Profiles.
:rtype: Object
"""
return TrafficProfile()
|
