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.
19 - Packet: ETH / IPv6 /
20 - Source IP address range: 2001:1::2 - 2001:1::FE
21 - Destination IP address range: 2001:2::2
23 - Packet: ETH / DOT1Q / IPv6 /
24 - Source IP address range: 2001:2::2 - 2001:2::FE
25 - Destination IP address range: 2001:1::2
28 from trex.stl.api import *
29 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
32 class TrafficStreams(TrafficStreamsBaseClass):
36 """Initialization and setting of streams' parameters."""
38 super(TrafficStreamsBaseClass, self).__init__()
43 # IPs used in packet headers.
44 self.p1_src_start_ip = '2001:1::2'
45 self.p1_src_end_ip = '2001:1::FE'
46 self.p1_dst_start_ip = '2001:2::2'
48 self.p2_src_start_ip = '2001:2::2'
49 self.p2_src_end_ip = '2001:2::FE'
50 self.p2_dst_start_ip = '2001:1::2'
52 def define_packets(self):
53 """Defines the packets to be sent from the traffic generator.
55 Packet definition: | ETH | IPv6 |
57 :returns: Packets to be sent from the traffic generator.
61 base_p1, count_p1 = self._get_start_end_ipv6(self.p1_src_start_ip,
63 base_p2, count_p2 = self._get_start_end_ipv6(self.p2_src_start_ip,
67 base_pkt_a = (Ether() /
68 IPv6(src=self.p1_src_start_ip,
69 dst=self.p1_dst_start_ip))
71 base_pkt_b = (Ether() /
72 Dot1Q(vlan=self.vlan_id) /
73 IPv6(src=self.p2_src_start_ip,
74 dst=self.p2_dst_start_ip))
77 vm1 = STLScVmRaw([STLVmFlowVar(name="ipv6_src",
79 max_value=base_p1 + count_p1,
81 STLVmWrFlowVar(fv_name="ipv6_src",
82 pkt_offset="IPv6.src",
85 vm2 = STLScVmRaw([STLVmFlowVar(name="ipv6_src",
87 max_value=base_p2 + count_p2,
89 STLVmWrFlowVar(fv_name="ipv6_src",
90 pkt_offset="IPv6.src",
93 return base_pkt_a, base_pkt_b, vm1, vm2
97 """Register this traffic profile to T-rex.
99 Do not change this function.
101 :returns: Traffic streams.
104 return TrafficStreams()