trex-sl-3n-ethip4-ip4dst400-1cnf.py revision 3d5a75be
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:
5#
6#     http://www.apache.org/licenses/LICENSE-2.0
7#
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.
13
14"""Stream profile for T-rex traffic generator.
15
16Stream profile:
17 - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
18 - Packet: ETH / IP /
19 - Direction 0 --> 1:
20   - Source IP address range:      10.0.0.1
21   - Destination IP address range: 20.0.0.0 - 20.0.1.143
22 - Direction 1 --> 0:
23   - Source IP address range:      20.0.0.1
24   - Destination IP address range: 10.0.0.0 - 10.0.1.143
25"""
26
27from trex.stl.api import *
28from profile_trex_stateless_base_class import TrafficStreamsBaseClass
29
30
31class TrafficStreams(TrafficStreamsBaseClass):
32    """Stream profile."""
33
34    def __init__(self):
35        """Initialization and setting of streams' parameters."""
36
37        super(TrafficStreamsBaseClass, self).__init__()
38
39        self.p1_dst_start_mac = u"02:02:00:00:12:00"
40        self.p1_dst_end_mac = u"02:02:00:00:12:00"
41
42        self.p2_dst_start_mac = u"02:02:00:00:02:00"
43        self.p2_dst_end_mac = u"02:02:00:00:02:00"
44
45        # IPs used in packet headers.
46        self.p1_src_start_ip = u"10.0.0.1"
47        self.p1_dst_start_ip = u"20.0.0.0"
48        self.p1_dst_end_ip = u"20.0.1.143"
49
50        self.p2_src_start_ip = u"20.0.0.1"
51        self.p2_dst_start_ip = u"10.0.0.0"
52        self.p2_dst_end_ip = u"10.0.1.143"
53
54    def define_packets(self):
55        """Defines the packets to be sent from the traffic generator.
56
57        Packet definition: | ETH | IP |
58
59        :returns: Packets to be sent from the traffic generator.
60        :rtype: tuple
61        """
62
63        # Direction 0 --> 1
64        base_pkt_a = (Ether(dst=self.p1_dst_start_mac) /
65                      IP(src=self.p1_src_start_ip,
66                         dst=self.p1_dst_start_ip,
67                         proto=61))
68        # Direction 1 --> 0
69        base_pkt_b = (Ether(dst=self.p2_dst_start_mac) /
70                      IP(src=self.p2_src_start_ip,
71                         dst=self.p2_dst_start_ip,
72                         proto=61))
73
74        # Direction 0 --> 1
75        vm1 = STLScVmRaw([STLVmFlowVar(name=u"mac_dst",
76                                       min_value=0,
77                                       max_value=0,
78                                       size=1, op=u"inc"),
79                          STLVmWrFlowVar(fv_name=u"mac_dst", pkt_offset=5),
80                          STLVmFlowVar(name=u"dst",
81                                       min_value=self.p1_dst_start_ip,
82                                       max_value=self.p1_dst_end_ip,
83                                       size=4, op=u"inc"),
84                          STLVmWrFlowVar(fv_name=u"dst", pkt_offset=u"IP.dst"),
85                          STLVmFixIpv4(offset=u"IP")])
86        # Direction 1 --> 0
87        vm2 = STLScVmRaw([STLVmFlowVar(name=u"mac_dst",
88                                       min_value=0,
89                                       max_value=0,
90                                       size=1, op=u"inc"),
91                          STLVmWrFlowVar(fv_name=u"mac_dst", pkt_offset=5),
92                          STLVmFlowVar(name=u"dst",
93                                       min_value=self.p2_dst_start_ip,
94                                       max_value=self.p2_dst_end_ip,
95                                       size=4, op=u"inc"),
96                          STLVmWrFlowVar(fv_name=u"dst", pkt_offset=u"IP.dst"),
97                          STLVmFixIpv4(offset=u"IP")])
98
99        return base_pkt_a, base_pkt_b, vm1, vm2
100
101
102def register():
103    """Register this traffic profile to T-rex.
104
105    Do not change this function.
106
107    :return: Traffic streams.
108    :rtype: Object
109    """
110    return TrafficStreams()
111
112