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: 10.10.10.1 - 10.10.10.254
22 - Destination IP address range: 20.20.20.1 - 20.20.20.254
25 - Source IP address range: 20.20.20.1 - 20.20.20.254
26 - Destination IP address range: 10.10.10.1 - 10.10.10.254
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 = 100
43 self.p2_vlan_start = 200
45 # IPs used in packet headers.
46 self.p1_src_start_ip = '10.10.10.1'
47 self.p1_src_end_ip = '10.10.10.254'
49 self.p1_dst_start_ip = '20.20.20.1'
50 self.p1_dst_end_ip = '20.20.20.254'
52 self.p2_src_start_ip = '20.20.20.1'
53 self.p2_src_end_ip = '20.20.20.254'
55 self.p2_dst_start_ip = '10.10.10.1'
56 self.p2_dst_end_ip = '10.10.10.254'
58 def define_packets(self):
59 """Defines the packets to be sent from the traffic generator.
61 Packet definition: | ETH | DOT1Q | IP |
63 :returns: Packets to be sent from the traffic generator.
68 base_pkt_a = (Ether() /
69 Dot1Q(vlan=self.p1_vlan_start) /
70 IP(src=self.p1_src_start_ip,
71 dst=self.p1_dst_start_ip,
74 base_pkt_b = (Ether() /
75 Dot1Q(vlan=self.p2_vlan_start) /
76 IP(src=self.p2_src_start_ip,
77 dst=self.p2_dst_start_ip,
81 vm1 = STLScVmRaw([STLVmFlowVar(name="ip_src",
82 min_value=self.p1_src_start_ip,
83 max_value=self.p1_src_end_ip,
85 STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
86 STLVmFlowVar(name="ip_dst",
87 min_value=self.p1_dst_start_ip,
88 max_value=self.p1_dst_end_ip,
90 STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
91 STLVmFixIpv4(offset="IP")])
93 vm2 = STLScVmRaw([STLVmFlowVar(name="ip_src",
94 min_value=self.p2_src_start_ip,
95 max_value=self.p2_src_end_ip,
97 STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
98 STLVmFlowVar(name="ip_dst",
99 min_value=self.p2_dst_start_ip,
100 max_value=self.p2_dst_end_ip,
101 size=4, op="random"),
102 STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
103 STLVmFixIpv4(offset="IP")])
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 :returns: Traffic streams.
116 return TrafficStreams()