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 / IPv6 /
20 - Source IP address range: 2001:1::1
21 - Destination IP address range: 2001:2::0 - 2001:2::1:869F
23 - Source IP address range: 2001:2::1
24 - Destination IP address range: 2001:1::0 - 2001:1::1:869F
27 from trex.stl.api import *
28 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
31 class TrafficStreams(TrafficStreamsBaseClass):
35 """Initialization and setting of streams' parameters."""
37 super(TrafficStreamsBaseClass, self).__init__()
39 # IPs used in packet headers.
40 self.p1_src_start_ip = '2001:1::1'
41 self.p1_dst_start_ip = '2001:2::0'
42 self.p1_dst_end_ip = '2001:2::1:869F'
44 self.p2_src_start_ip = '2001:2::1'
45 self.p2_dst_start_ip = '2001:1::0'
46 self.p2_dst_end_ip = '2001:1::1:869F'
48 def define_packets(self):
49 """Defines the packets to be sent from the traffic generator.
51 Packet definition: | ETH | IPv6 |
53 :returns: Packets to be sent from the traffic generator.
57 base_p1, count_p1 = self._get_start_end_ipv6(self.p1_dst_start_ip,
59 base_p2, count_p2 = self._get_start_end_ipv6(self.p2_dst_start_ip,
63 base_pkt_a = Ether() / IPv6(src=self.p1_src_start_ip,
64 dst=self.p1_dst_start_ip)
66 base_pkt_b = Ether() / IPv6(src=self.p2_src_start_ip,
67 dst=self.p2_dst_start_ip)
70 vm1 = STLScVmRaw([STLVmFlowVar(name="ipv6_dst",
72 max_value=base_p1 + count_p1,
74 STLVmWrFlowVar(fv_name="ipv6_dst",
75 pkt_offset="IPv6.dst",
78 vm2 = STLScVmRaw([STLVmFlowVar(name="ipv6_dst",
80 max_value=base_p2 + count_p2,
82 STLVmWrFlowVar(fv_name="ipv6_dst",
83 pkt_offset="IPv6.dst",
86 return base_pkt_a, base_pkt_b, vm1, vm2
90 """Register this traffic profile to T-rex.
92 Do not change this function.
94 :return: Traffic streams.
97 return TrafficStreams()