resources/traffic_profiles/trex/trex-sl-3n-ethip4-ip4dst40.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 - 20.0.0.39
  22  - Direction 1 --> 0:
  23    - Source IP address range:      20.0.0.1
  24    - Destination IP address range: 10.0.0.0 - 10.0.0.39
  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         # IPs used in packet headers.
  40         self.p1_src_start_ip = u"10.0.0.1"
  41         self.p1_dst_start_ip = u"20.0.0.0"
  42         self.p1_dst_end_ip = u"20.0.0.39"
  43
  44         self.p2_src_start_ip = u"20.0.0.1"
  45         self.p2_dst_start_ip = u"10.0.0.0"
  46         self.p2_dst_end_ip = u"10.0.0.39"
  47
  48     def define_packets(self):
  49         """Defines the packets to be sent from the traffic generator.
  50
  51         Packet definition: | ETH | IP |
  52
  53         :returns: Packets to be sent from the traffic generator.
  54         :rtype: tuple
  55         """
  56
  57         # Direction 0 --> 1
  58         base_pkt_a = (
  59             Ether() /
  60             IP(
  61                 src=self.p1_src_start_ip,
  62                 dst=self.p1_dst_start_ip,
  63                 proto=61
  64             )
  65         )
  66         # Direction 1 --> 0
  67         base_pkt_b = (
  68             Ether() /
  69             IP(
  70                 src=self.p2_src_start_ip,
  71                 dst=self.p2_dst_start_ip,
  72                 proto=61
  73             )
  74         )
  75
  76         # Direction 0 --> 1
  77         vm1 = STLScVmRaw(
  78             [
  79                 STLVmFlowVar(
  80                     name=u"dst",
  81                     min_value=self.p1_dst_start_ip,
  82                     max_value=self.p1_dst_end_ip,
  83                     size=4,
  84                     op=u"inc"
  85                 ),
  86                 STLVmWrFlowVar(
  87                     fv_name=u"dst",
  88                     pkt_offset=u"IP.dst"
  89                 ),
  90                 STLVmFixIpv4(
  91                     offset=u"IP"
  92                 )
  93             ]
  94         )
  95         # Direction 1 --> 0
  96         vm2 = STLScVmRaw(
  97             [
  98                 STLVmFlowVar(
  99                     name=u"dst",
 100                     min_value=self.p2_dst_start_ip,
 101                     max_value=self.p2_dst_end_ip,
 102                     size=4,
 103                     op=u"inc"
 104                 ),
 105                 STLVmWrFlowVar(
 106                     fv_name=u"dst",
 107                     pkt_offset=u"IP.dst"
 108                 ),
 109                 STLVmFixIpv4(
 110                     offset=u"IP"
 111                 )
 112             ]
 113         )
 114
 115         return base_pkt_a, base_pkt_b, vm1, vm2
 116
 117
 118 def register():
 119     """Register this traffic profile to T-rex.
 120
 121     Do not change this function.
 122
 123     :return: Traffic streams.
 124     :rtype: Object
 125     """
 126     return TrafficStreams()