1 # Copyright (c) 2017 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: 20.0.0.0 - 20.0.7.207
21 - Destination IP address range: 12.0.0.2
22 - Source UDP port range: 1024 - 1038
23 - Destination UDP port range: 1024
25 - Source IP address range: 12.0.0.2
26 - Destination IP address range: 200.0.0.0
27 - Source UDP port range: 1024
28 - Destination UDP port range: 1024 - 31022
31 from trex_stl_lib.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 = '20.0.0.0'
45 self.p1_src_end_ip = '20.0.7.207'
46 self.p1_dst_start_ip = '12.0.0.2'
48 self.p2_src_start_ip = '12.0.0.2'
49 self.p2_src_end_ip = '12.0.0.2'
50 self.p2_dst_start_ip = '200.0.0.0'
52 # UDP ports used in packet headers.
53 self.p1_src_start_udp_port = 1024
54 self.p1_src_end_udp_port = 1038
55 self.p1_dst_start_udp_port = 1024
57 self.p2_src_start_udp_port = 1024
58 self.p2_dst_start_udp_port = 1024
59 self.p2_dst_end_udp_port = 31022
61 def define_packets(self):
62 """Defines the packets to be sent from the traffic generator.
64 Packet definition: | ETH | IP | UDP |
66 :returns: Packets to be sent from the traffic generator.
71 base_pkt_a = (Ether() /
72 IP(src=self.p1_src_start_ip,
73 dst=self.p1_dst_start_ip,
75 UDP(sport=self.p1_src_start_udp_port,
76 dport=self.p1_dst_start_udp_port))
78 base_pkt_b = (Ether() /
79 IP(src=self.p2_src_start_ip,
80 dst=self.p2_dst_start_ip,
82 UDP(sport=self.p2_src_start_udp_port,
83 dport=self.p2_dst_start_udp_port))
87 STLVmTupleGen(ip_min=self.p1_src_start_ip,
88 ip_max=self.p1_src_end_ip,
89 port_min=self.p1_src_start_udp_port,
90 port_max=self.p1_src_end_udp_port,
92 STLVmWrFlowVar(fv_name="tuple.ip", pkt_offset="IP.src"),
93 STLVmFixIpv4(offset="IP"),
94 STLVmWrFlowVar(fv_name="tuple.port", pkt_offset="UDP.sport")
98 STLVmFlowVar(name="dport",
99 min_value=self.p2_dst_start_udp_port,
100 max_value=self.p2_dst_end_udp_port,
102 STLVmWrFlowVar(fv_name="dport", pkt_offset="UDP.dport")
105 return base_pkt_a, base_pkt_b, vm1, vm2
109 """Register this traffic profile to T-rex.
111 Do not change this function.
113 :return: Traffic streams.
116 return TrafficStreams()