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.
20 - Source IP address range: 10.0.0.1
21 - Destination IP address range: 20.0.0.0 - 20.0.156.63
23 - Source IP address range: 20.0.0.1
24 - Destination IP address range: 10.0.0.0 - 10.0.156.63
27 from trex.stl.api import *
28 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
31 class TrafficStreams(TrafficStreamsBaseClass):
35 """Initialization and setting of streams' parameters."""
37 super(TrafficStreamsBaseClass, self).__init__()
39 self.p2_dst_start_mac = '02:02:00:00:00:00'
40 self.p2_dst_end_mac = '02:02:00:00:00:03'
42 # IPs used in packet headers.
43 self.p1_src_start_ip = '10.0.0.1'
44 self.p1_dst_start_ip = '20.0.0.0'
45 self.p1_dst_end_ip = '20.0.156.63'
47 self.p2_src_start_ip = '20.0.0.1'
48 self.p2_dst_start_ip = '10.0.0.0'
49 self.p2_dst_end_ip = '10.0.156.63'
51 def define_packets(self):
52 """Defines the packets to be sent from the traffic generator.
54 Packet definition: | ETH | IP |
56 :returns: Packets to be sent from the traffic generator.
61 base_pkt_a = (Ether() /
62 IP(src=self.p1_src_start_ip,
63 dst=self.p1_dst_start_ip,
66 base_pkt_b = (Ether(dst=self.p2_dst_start_mac) /
67 IP(src=self.p2_src_start_ip,
68 dst=self.p2_dst_start_ip,
72 vm1 = STLScVmRaw([STLVmFlowVar(name="dst",
73 min_value=self.p1_dst_start_ip,
74 max_value=self.p1_dst_end_ip,
76 STLVmWrFlowVar(fv_name="dst", pkt_offset="IP.dst"),
77 STLVmFixIpv4(offset="IP")])
79 vm2 = STLScVmRaw([STLVmFlowVar(name="mac_dst",
83 STLVmWrFlowVar(fv_name="mac_dst", pkt_offset=5),
84 STLVmFlowVar(name="dst",
85 min_value=self.p2_dst_start_ip,
86 max_value=self.p2_dst_end_ip,
88 STLVmWrFlowVar(fv_name="dst", pkt_offset="IP.dst"),
89 STLVmFixIpv4(offset="IP")])
91 return base_pkt_a, base_pkt_b, vm1, vm2
95 """Register this traffic profile to T-rex.
97 Do not change this function.
99 :return: Traffic streams.
102 return TrafficStreams()