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 / IP / UDP
20 - Source IP address range: 20.0.0.0
21 - Destination IP address range: 12.0.0.2
22 - Source UDP port range: 1024
23 - Destination UDP port range: 1024
25 - Source IP address range: 12.0.0.2
26 - Destination IP address range: 200.0.0.0
27 - Source UDP port range: 1024
28 - Destination UDP port range: 1028
31 from trex.stl.api import *
32 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
35 class TrafficStreams(TrafficStreamsBaseClass):
39 """Initialization and setting of streams' parameters."""
41 super(TrafficStreamsBaseClass, self).__init__()
43 # IPs used in packet headers.
44 self.p1_src_ip = '20.0.0.0'
45 self.p1_dst_ip = '12.0.0.2'
47 self.p2_src_ip = '12.0.0.2'
48 self.p2_dst_ip = '200.0.0.0'
50 # UDP ports used in packet headers.
51 self.p1_src_udp_port = 1024
52 self.p1_dst_udp_port = 1024
54 self.p2_src_udp_port = 1024
55 self.p2_dst_udp_port = 1028
57 def define_packets(self):
58 """Defines the packets to be sent from the traffic generator.
60 Packet definition: | ETH | IP | UDP |
62 :returns: Packets to be sent from the traffic generator.
67 base_pkt_a = (Ether() /
68 IP(src=self.p1_src_ip, dst=self.p1_dst_ip, proto=17) /
69 UDP(sport=self.p1_src_udp_port,
70 dport=self.p1_dst_udp_port))
72 base_pkt_b = (Ether() /
73 IP(src=self.p2_src_ip, dst=self.p2_dst_ip, proto=17) /
74 UDP(sport=self.p2_src_udp_port,
75 dport=self.p2_dst_udp_port))
77 return base_pkt_a, base_pkt_b, None, None
81 """Register this traffic profile to T-rex.
83 Do not change this function.
85 :return: Traffic streams.
88 return TrafficStreams()