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 / DOT1Q / IP /
21 - Source IP address range: 10.0.0.1 - 10.0.0.254
22 - Destination IP address range: 20.0.0.1 - 20.0.0.254
25 - Source IP address range: 20.0.0.1 - 20.0.0.254
26 - Destination IP address range: 10.0.0.1 - 10.0.0.254
29 from trex.stl.api import *
30 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
33 class TrafficStreams(TrafficStreamsBaseClass):
37 """Initialization and setting of streams' parameters."""
39 super(TrafficStreamsBaseClass, self).__init__()
42 self.p1_vlan_start = 1
44 self.p2_vlan_start = 1
47 # IPs used in packet headers.
48 self.p1_src_start_ip = '10.0.0.1'
49 self.p1_src_end_ip = '10.0.0.254'
51 self.p1_dst_start_ip = '20.0.0.1'
52 self.p1_dst_end_ip = '20.0.0.254'
54 self.p2_src_start_ip = '20.0.0.1'
55 self.p2_src_end_ip = '20.0.0.254'
57 self.p2_dst_start_ip = '10.0.0.1'
58 self.p2_dst_end_ip = '10.0.0.254'
60 def define_packets(self):
61 """Defines the packets to be sent from the traffic generator.
63 Packet definition: | ETH | DOT1Q | IP |
65 :returns: Packets to be sent from the traffic generator.
70 base_pkt_a = (Ether() /
71 Dot1Q(vlan=self.p1_vlan_start) /
72 IP(src=self.p1_src_start_ip,
73 dst=self.p1_dst_start_ip,
76 base_pkt_b = (Ether() /
77 Dot1Q(vlan=self.p2_vlan_start) /
78 IP(src=self.p2_src_start_ip,
79 dst=self.p2_dst_start_ip,
83 vm1 = STLScVmRaw([STLVmFlowVar(name="ip_src",
84 min_value=self.p1_src_start_ip,
85 max_value=self.p1_src_end_ip,
87 STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
88 STLVmFlowVar(name="ip_dst",
89 min_value=self.p1_dst_start_ip,
90 max_value=self.p1_dst_end_ip,
92 STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
93 STLVmFixIpv4(offset="IP")])
95 vm2 = STLScVmRaw([STLVmFlowVar(name="ip_src",
96 min_value=self.p2_src_start_ip,
97 max_value=self.p2_src_end_ip,
99 STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
100 STLVmFlowVar(name="ip_dst",
101 min_value=self.p2_dst_start_ip,
102 max_value=self.p2_dst_end_ip,
103 size=4, op="random"),
104 STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
105 STLVmFixIpv4(offset="IP")])
107 return base_pkt_a, base_pkt_b, vm1, vm2
111 """Register this traffic profile to T-rex.
113 Do not change this function.
115 :returns: Traffic streams.
118 return TrafficStreams()