resources/traffic_profiles/trex/trex-sl-3n-ethip4-ip4dst1000-2cnf.py

   1 # Copyright (c) 2020 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
  16 Stream 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 - 20.0.3.231
  22  - Direction 1 --> 0:
  23    - Source IP address range:      20.0.0.1
  24    - Destination IP address range: 10.0.0.0 - 10.0.3.231
  25 """
  26
  27 from trex.stl.api import *
  28 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
  29
  30
  31 class 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
  41         self.p2_dst_start_mac = u"02:02:00:00:02:00"
  42
  43         # IPs used in packet headers.
  44         self.p1_src_start_ip = u"10.0.0.1"
  45         self.p1_dst_start_ip = u"20.0.0.0"
  46         self.p1_dst_end_ip = u"20.0.3.231"
  47
  48         self.p2_src_start_ip = u"20.0.0.1"
  49         self.p2_dst_start_ip = u"10.0.0.0"
  50         self.p2_dst_end_ip = u"10.0.3.231"
  51
  52     def define_packets(self):
  53         """Defines the packets to be sent from the traffic generator.
  54
  55         Packet definition: | ETH | IP |
  56
  57         :returns: Packets to be sent from the traffic generator.
  58         :rtype: tuple
  59         """
  60
  61         # Direction 0 --> 1
  62         base_pkt_a = (
  63             Ether(
  64                 dst=self.p1_dst_start_mac
  65             ) /            IP(
  66                 src=self.p1_src_start_ip,
  67                 dst=self.p1_dst_start_ip,
  68                 proto=61
  69             )
  70         )
  71         # Direction 1 --> 0
  72         base_pkt_b = (
  73             Ether(
  74               dst=self.p2_dst_start_mac
  75             ) /
  76             IP(
  77               src=self.p2_src_start_ip,
  78               dst=self.p2_dst_start_ip,
  79               proto=61
  80             )
  81         )
  82
  83         # Direction 0 --> 1
  84         vm1 = STLScVmRaw(
  85             [
  86                 STLVmFlowVar(
  87                     name=u"mac_dst",
  88                     min_value=0,
  89                     max_value=1,
  90                     size=1,
  91                     op=u"inc"
  92                 ),
  93                 STLVmFlowVar(
  94                     name=u"dst",
  95                     min_value=self.p1_dst_start_ip,
  96                     max_value=self.p1_dst_end_ip,
  97                     size=4,
  98                     op=u"inc"
  99                 ),
 100                 STLVmWrFlowVar(
 101                     fv_name=u"dst",
 102                     pkt_offset=u"IP.dst"
 103                 ),
 104                 STLVmFixIpv4(
 105                    offset=u"IP"
 106                 )
 107             ]
 108         )
 109         # Direction 1 --> 0
 110         vm2 = STLScVmRaw(
 111             [
 112                 STLVmFlowVar(
 113                     name=u"mac_dst",
 114                     min_value=0,
 115                     max_value=1,
 116                     size=1,
 117                     op=u"inc"
 118                 ),
 119                 STLVmWrFlowVar(
 120                     fv_name=u"mac_dst",
 121                     pkt_offset=5
 122                 ),
 123                 STLVmFlowVar(
 124                     name=u"dst",
 125                     min_value=self.p2_dst_start_ip,
 126                     max_value=self.p2_dst_end_ip,
 127                     size=4,
 128                     op=u"inc"
 129                 ),
 130                 STLVmWrFlowVar(
 131                     fv_name=u"dst",
 132                     pkt_offset=u"IP.dst"
 133                 ),
 134                 STLVmFixIpv4(
 135                     offset=u"IP"
 136                 )
 137             ]
 138         )
 139
 140         return base_pkt_a, base_pkt_b, vm1, vm2
 141
 142
 143 def register():
 144     """Register this traffic profile to T-rex.
 145
 146     Do not change this function.
 147
 148     :return: Traffic streams.
 149     :rtype: Object
 150     """
 151     return TrafficStreams()
 152