1 # Copyright (c) 2019 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 """Stream profile for T-rex traffic generator.
17 - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
18 - Packet: ETH / IP / UDP
20 - Source IP address range: 10.10.10.2 - 10.10.10.11
21 - Destination IP address range: 20.20.20.2 - 20.20.20.11
22 - Source UDP port range: 1001 - 2000
23 - Destination UDP port range: 2001 - 3000
25 - Source IP address range: 20.20.20.2 - 20.20.20.11
26 - Destination IP address range: 10.10.10.2 - 10.10.10.11
27 - Source UDP port range: 2001 - 3000
28 - Destination UDP port range: 1001 - 2000
31 from trex.stl.api import *
32 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
35 class TrafficStreams(TrafficStreamsBaseClass):
39 """Initialization and setting of streams' parameters."""
41 super(TrafficStreamsBaseClass, self).__init__()
43 # IPs used in packet headers.
44 self.p1_src_start_ip = '10.10.10.2'
45 self.p1_src_end_ip = '10.10.10.11'
46 self.p1_dst_start_ip = '20.20.20.2'
47 self.p1_dst_end_ip = '20.20.20.11'
49 self.p2_src_start_ip = '20.20.20.2'
50 self.p2_src_end_ip = '20.20.20.11'
51 self.p2_dst_start_ip = '10.10.10.2'
52 self.p2_dst_end_ip = '10.10.10.11'
54 # UDP ports used in packet headers.
55 self.p1_src_start_udp_port = 1001
56 self.p1_src_end_udp_port = 2000
57 self.p1_dst_start_udp_port = 2001
58 self.p1_dst_end_udp_port = 3000
60 self.p2_src_start_udp_port = 2001
61 self.p2_src_end_udp_port = 3000
62 self.p2_dst_start_udp_port = 1001
63 self.p2_dst_end_udp_port = 2000
65 def define_packets(self):
66 """Defines the packets to be sent from the traffic generator.
68 Packet definition: | ETH | IP | UDP |
70 :returns: Packets to be sent from the traffic generator.
75 base_pkt_a = (Ether() /
76 IP(src=self.p1_src_start_ip,
77 dst=self.p1_dst_start_ip,
79 UDP(sport=self.p1_src_start_udp_port,
80 dport=self.p1_dst_start_udp_port))
82 base_pkt_b = (Ether() /
83 IP(src=self.p2_src_start_ip,
84 dst=self.p2_dst_start_ip,
86 UDP(sport=self.p2_src_start_udp_port,
87 dport=self.p2_dst_start_udp_port))
91 STLVmTupleGen(ip_min=self.p1_src_start_ip,
92 ip_max=self.p1_src_end_ip,
93 port_min=self.p1_src_start_udp_port,
94 port_max=self.p1_src_end_udp_port,
96 STLVmTupleGen(ip_min=self.p1_dst_start_ip,
97 ip_max=self.p1_dst_end_ip,
98 port_min=self.p1_dst_start_udp_port,
99 port_max=self.p1_dst_end_udp_port,
101 STLVmWrFlowVar(fv_name="tuple1_src.ip", pkt_offset="IP.src"),
102 STLVmWrFlowVar(fv_name="tuple1_dst.ip", pkt_offset="IP.dst"),
103 STLVmFixIpv4(offset="IP"),
104 STLVmWrFlowVar(fv_name="tuple1_src.port", pkt_offset="UDP.sport"),
105 STLVmWrFlowVar(fv_name="tuple1_dst.port", pkt_offset="UDP.dport")
109 STLVmTupleGen(ip_min=self.p2_src_start_ip,
110 ip_max=self.p2_src_end_ip,
111 port_min=self.p2_src_start_udp_port,
112 port_max=self.p2_src_end_udp_port,
114 STLVmTupleGen(ip_min=self.p2_dst_start_ip,
115 ip_max=self.p2_dst_end_ip,
116 port_min=self.p2_dst_start_udp_port,
117 port_max=self.p2_dst_end_udp_port,
119 STLVmWrFlowVar(fv_name="tuple2_src.ip", pkt_offset="IP.src"),
120 STLVmWrFlowVar(fv_name="tuple2_dst.ip", pkt_offset="IP.dst"),
121 STLVmFixIpv4(offset="IP"),
122 STLVmWrFlowVar(fv_name="tuple2_src.port", pkt_offset="UDP.sport"),
123 STLVmWrFlowVar(fv_name="tuple2_dst.port", pkt_offset="UDP.dport")
126 return base_pkt_a, base_pkt_b, vm1, vm2
130 """Register this traffic profile to T-rex.
132 Do not change this function.
134 :return: Traffic streams.
137 return TrafficStreams()