resources/traffic_profiles/trex/trex-sl-dot1qip4-vlan1ip4src254ip4dst254.py

   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
  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:                    100
  21    - Source IP address range:       10.10.10.1 - 10.10.10.254
  22    - Destination IP address range:  20.20.20.1 - 20.20.20.254
  23  - Direction 1 --> 0:
  24    - VLAN range:                    200
  25    - Source IP address range:       20.20.20.1 - 20.20.20.254
  26    - Destination IP address range:  10.10.10.1 - 10.10.10.254
  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 = 100
  43         self.p2_vlan_start = 200
  44
  45         # IPs used in packet headers.
  46         self.p1_src_start_ip = '10.10.10.1'
  47         self.p1_src_end_ip = '10.10.10.254'
  48
  49         self.p1_dst_start_ip = '20.20.20.1'
  50         self.p1_dst_end_ip = '20.20.20.254'
  51
  52         self.p2_src_start_ip = '20.20.20.1'
  53         self.p2_src_end_ip = '20.20.20.254'
  54
  55         self.p2_dst_start_ip = '10.10.10.1'
  56         self.p2_dst_end_ip = '10.10.10.254'
  57
  58     def define_packets(self):
  59         """Defines the packets to be sent from the traffic generator.
  60
  61         Packet definition: | ETH | DOT1Q | IP |
  62
  63         :returns: Packets to be sent from the traffic generator.
  64         :rtype: tuple
  65         """
  66
  67         # Direction 0 --> 1
  68         base_pkt_a = (Ether() /
  69                       Dot1Q(vlan=self.p1_vlan_start) /
  70                       IP(src=self.p1_src_start_ip,
  71                          dst=self.p1_dst_start_ip,
  72                          proto=61))
  73         # Direction 1 --> 0
  74         base_pkt_b = (Ether() /
  75                       Dot1Q(vlan=self.p2_vlan_start) /
  76                       IP(src=self.p2_src_start_ip,
  77                          dst=self.p2_dst_start_ip,
  78                          proto=61))
  79
  80         # Direction 0 --> 1
  81         vm1 = STLScVmRaw([STLVmFlowVar(name="ip_src",
  82                                        min_value=self.p1_src_start_ip,
  83                                        max_value=self.p1_src_end_ip,
  84                                        size=4, op="random"),
  85                           STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
  86                           STLVmFlowVar(name="ip_dst",
  87                                        min_value=self.p1_dst_start_ip,
  88                                        max_value=self.p1_dst_end_ip,
  89                                        size=4, op="random"),
  90                           STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
  91                           STLVmFixIpv4(offset="IP")])
  92         # Direction 1 --> 0
  93         vm2 = STLScVmRaw([STLVmFlowVar(name="ip_src",
  94                                        min_value=self.p2_src_start_ip,
  95                                        max_value=self.p2_src_end_ip,
  96                                        size=4, op="random"),
  97                           STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
  98                           STLVmFlowVar(name="ip_dst",
  99                                        min_value=self.p2_dst_start_ip,
 100                                        max_value=self.p2_dst_end_ip,
 101                                        size=4, op="random"),
 102                           STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
 103                           STLVmFixIpv4(offset="IP")])
 104
 105         return base_pkt_a, base_pkt_b, vm1, vm2
 106
 107
 108 def register():
 109     """Register this traffic profile to T-rex.
 110
 111     Do not change this function.
 112
 113     :returns: Traffic streams.
 114     :rtype: Object
 115     """
 116     return TrafficStreams()