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 |
20 - Source MAC address range: ca:fe:00:00:00:00 - ca:fe:00:00:27:0f
21 - Source IP address range: 10.0.0.2 - 10.0.39.17
22 - Destination IP address range: 20.0.0.1
24 - Source MAC address range: fa:ce:00:00:00:00 - fa:ce:00:00:27:0f
25 - Source IP address range: 20.0.0.2 - 20.0.39.17
26 - Destination IP address range: 10.0.0.1
29 from trex_stl_lib.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__()
43 # MACs used in packet headers.
44 self.p1_src_start_mac = 'ca:fe:00:00:00:00' # mask: 00:00:FF:FF:FF:FF
46 self.p2_src_start_mac = 'fa:ce:00:00:00:00' # mask: 00:00:FF:FF:FF:FF
48 # IPs used in packet headers.
49 self.p1_src_start_ip = '10.0.0.2'
50 self.p1_src_end_ip = '10.0.39.17'
51 self.p1_dst_start_ip = '20.0.0.1'
53 self.p2_src_start_ip = '20.0.0.2'
54 self.p2_src_end_ip = '20.0.39.17'
55 self.p2_dst_start_ip = '10.0.0.1'
57 def define_packets(self):
58 """Defines the packets to be sent from the traffic generator.
60 Packet definition: | ETH | IP |
62 :returns: Packets to be sent from the traffic generator.
67 base_pkt_a = (Ether(src=self.p1_src_start_mac) /
68 IP(src=self.p1_src_start_ip,
69 dst=self.p1_dst_start_ip,
72 base_pkt_b = (Ether(src=self.p2_src_start_mac) /
73 IP(src=self.p2_src_start_ip,
74 dst=self.p2_dst_start_ip,
78 vm1 = STLScVmRaw([STLVmFlowVar(name="mac_src",
80 max_value=self.clients-1,
82 STLVmWrFlowVar(fv_name="mac_src", pkt_offset=8),
83 STLVmFlowVar(name="src",
84 min_value=self.p1_src_start_ip,
85 max_value=self.p1_src_end_ip,
87 STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
88 STLVmFixIpv4(offset="IP")])
90 vm2 = STLScVmRaw([STLVmFlowVar(name="mac_src",
92 max_value=self.clients-1,
94 STLVmWrFlowVar(fv_name="mac_src", pkt_offset=8),
95 STLVmFlowVar(name="src",
96 min_value=self.p2_src_start_ip,
97 max_value=self.p2_src_end_ip,
99 STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
100 STLVmFixIpv4(offset="IP")])
102 return base_pkt_a, base_pkt_b, vm1, vm2
106 """Register this traffic profile to T-rex.
108 Do not change this function.
110 :returns: Traffic streams.
113 return TrafficStreams()