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: 10.10.10.1 - 10.10.10.254
21 - Destination IP address range: 20.20.20.1
23 - Packet: ETH / DOT1Q / IP /
24 - Source IP address range: 20.20.20.1 - 20.20.20.254
25 - Destination IP address range: 10.10.10.1
28 from trex.stl.api import *
29 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
32 class TrafficStreams(TrafficStreamsBaseClass):
36 """Initialization and setting of streams' parameters."""
38 super(TrafficStreamsBaseClass, self).__init__()
43 # IPs used in packet headers.
44 self.p1_src_start_ip = '10.10.10.1'
45 self.p1_src_end_ip = '10.10.10.254'
46 self.p1_dst_start_ip = '20.20.20.1'
48 self.p2_src_start_ip = '20.20.20.1'
49 self.p2_src_end_ip = '20.20.20.254'
50 self.p2_dst_start_ip = '10.10.10.1'
52 def define_packets(self):
53 """Defines the packets to be sent from the traffic generator.
55 Packet definition: | ETH | IP |
57 :returns: Packets to be sent from the traffic generator.
62 base_pkt_a = (Ether() /
63 IP(src=self.p1_src_start_ip,
64 dst=self.p1_dst_start_ip,
67 base_pkt_b = (Ether() /
68 Dot1Q(vlan=self.vlan_id) /
69 IP(src=self.p2_src_start_ip,
70 dst=self.p2_dst_start_ip,
74 vm1 = STLScVmRaw([STLVmFlowVar(name="src",
75 min_value=self.p1_src_start_ip,
76 max_value=self.p1_src_end_ip,
78 STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
79 STLVmFixIpv4(offset="IP")])
81 vm2 = STLScVmRaw([STLVmFlowVar(name="src",
82 min_value=self.p2_src_start_ip,
83 max_value=self.p2_src_end_ip,
85 STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
86 STLVmFixIpv4(offset="IP")])
88 return base_pkt_a, base_pkt_b, vm1, vm2
92 """Register this traffic profile to T-rex.
94 Do not change this function.
96 :return: Traffic streams.
99 return TrafficStreams()