resources/traffic_profiles/trex/trex-sl-3n-dot1qip4-vlan1ip4src254ip4dst254.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 / DOT1Q / IP /
  19  - Direction 0 --> 1:
  20    - VLAN range:                    1
  21    - Source IP address range:       10.0.0.1 - 10.0.0.254
  22    - Destination IP address range:  20.0.0.1 - 20.0.0.254
  23  - Direction 1 --> 0:
  24    - VLAN range:                    1
  25    - Source IP address range:       20.0.0.1 - 20.0.0.254
  26    - Destination IP address range:  10.0.0.1 - 10.0.0.254
  27 """
  28
  29 from trex.stl.api import *
  30 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
  31
  32
  33 class TrafficStreams(TrafficStreamsBaseClass):
  34     """Stream profile."""
  35
  36     def __init__(self):
  37         """Initialization and setting of streams' parameters."""
  38
  39         super(TrafficStreamsBaseClass, self).__init__()
  40
  41         # VLAN IDs
  42         self.p1_vlan_start = 1
  43
  44         self.p2_vlan_start = 1
  45
  46
  47         # IPs used in packet headers.
  48         self.p1_src_start_ip = u"10.0.0.1"
  49         self.p1_src_end_ip = u"10.0.0.254"
  50
  51         self.p1_dst_start_ip = u"20.0.0.1"
  52         self.p1_dst_end_ip = u"20.0.0.254"
  53
  54         self.p2_src_start_ip = u"20.0.0.1"
  55         self.p2_src_end_ip = u"20.0.0.254"
  56
  57         self.p2_dst_start_ip = u"10.0.0.1"
  58         self.p2_dst_end_ip = u"10.0.0.254"
  59
  60     def define_packets(self):
  61         """Defines the packets to be sent from the traffic generator.
  62
  63         Packet definition: | ETH | DOT1Q | IP |
  64
  65         :returns: Packets to be sent from the traffic generator.
  66         :rtype: tuple
  67         """
  68
  69         # Direction 0 --> 1
  70         base_pkt_a = (
  71             Ether() /
  72             Dot1Q(
  73               vlan=self.p1_vlan_start
  74             ) /
  75             IP(
  76               src=self.p1_src_start_ip,
  77               dst=self.p1_dst_start_ip,
  78               proto=61
  79             )
  80         )
  81         # Direction 1 --> 0
  82         base_pkt_b = (
  83             Ether() /
  84             Dot1Q(
  85                 vlan=self.p2_vlan_start
  86             ) /
  87             IP(
  88                 src=self.p2_src_start_ip,
  89                 dst=self.p2_dst_start_ip,
  90                 proto=61
  91             )
  92         )
  93
  94         # Direction 0 --> 1
  95         vm1 = STLScVmRaw(
  96             [
  97                 STLVmFlowVar(
  98                     name=u"ip_src",
  99                     min_value=self.p1_src_start_ip,
 100                     max_value=self.p1_src_end_ip,
 101                     size=4,
 102                     op=u"random"
 103                 ),
 104                 STLVmWrFlowVar(
 105                     fv_name=u"ip_src",
 106                     pkt_offset=u"IP.src"
 107                 ),
 108                 STLVmFlowVar(
 109                     name=u"ip_dst",
 110                     min_value=self.p1_dst_start_ip,
 111                     max_value=self.p1_dst_end_ip,
 112                     size=4,
 113                     op=u"random"
 114                 ),
 115                 STLVmWrFlowVar(
 116                     fv_name=u"ip_dst",
 117                     pkt_offset=u"IP.dst"
 118                 ),
 119                 STLVmFixIpv4(
 120                     offset=u"IP"
 121                 )
 122             ]
 123         )
 124         # Direction 1 --> 0
 125         vm2 = STLScVmRaw(
 126             [
 127                 STLVmFlowVar(
 128                     name=u"ip_src",
 129                     min_value=self.p2_src_start_ip,
 130                     max_value=self.p2_src_end_ip,
 131                     size=4,
 132                     op=u"random"
 133                 ),
 134                 STLVmWrFlowVar(
 135                     fv_name=u"ip_src",
 136                     pkt_offset=u"IP.src"
 137                 ),
 138                 STLVmFlowVar(
 139                     name=u"ip_dst",
 140                     min_value=self.p2_dst_start_ip,
 141                     max_value=self.p2_dst_end_ip,
 142                     size=4,
 143                     op=u"random"
 144                 ),
 145                 STLVmWrFlowVar(
 146                     fv_name=u"ip_dst",
 147                     pkt_offset=u"IP.dst"
 148                 ),
 149                 STLVmFixIpv4(
 150                     offset=u"IP"
 151                 )
 152             ]
 153         )
 154
 155         return base_pkt_a, base_pkt_b, vm1, vm2
 156
 157
 158 def register():
 159     """Register this traffic profile to T-rex.
 160
 161     Do not change this function.
 162
 163     :returns: Traffic streams.
 164     :rtype: Object
 165     """
 166     return TrafficStreams()