resources/traffic_profiles/trex/trex-sl-3n-dot1qip4-vlan1kip4src254ip4dst254.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:                    1 - 1000
  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 - 1000
  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.vlans = 1000
  43
  44         self.p1_vlan_start = 1
  45         self.p1_vlan_end = self.p1_vlan_start + self.vlans - 1
  46
  47         self.p2_vlan_start = 1
  48         self.p2_vlan_end = self.p2_vlan_start + self.vlans - 1
  49
  50         # IPs used in packet headers.
  51         self.p1_src_start_ip = '10.0.0.1'
  52         self.p1_src_end_ip = '10.0.0.254'
  53
  54         self.p1_dst_start_ip = '20.0.0.1'
  55         self.p1_dst_end_ip = '20.0.0.254'
  56
  57         self.p2_src_start_ip = '20.0.0.1'
  58         self.p2_src_end_ip = '20.0.0.254'
  59
  60         self.p2_dst_start_ip = '10.0.0.1'
  61         self.p2_dst_end_ip = '10.0.0.254'
  62
  63     def define_packets(self):
  64         """Defines the packets to be sent from the traffic generator.
  65
  66         Packet definition: | ETH | DOT1Q | IP |
  67
  68         :returns: Packets to be sent from the traffic generator.
  69         :rtype: tuple
  70         """
  71
  72         # Direction 0 --> 1
  73         base_pkt_a = (Ether() /
  74                       Dot1Q(vlan=self.p1_vlan_start) /
  75                       IP(src=self.p1_src_start_ip,
  76                          dst=self.p1_dst_start_ip,
  77                          proto=61))
  78         # Direction 1 --> 0
  79         base_pkt_b = (Ether() /
  80                       Dot1Q(vlan=self.p2_vlan_start) /
  81                       IP(src=self.p2_src_start_ip,
  82                          dst=self.p2_dst_start_ip,
  83                          proto=61))
  84
  85         # Direction 0 --> 1
  86         vm1 = STLScVmRaw([STLVmFlowVar(name="vlan",
  87                                        min_value=self.p1_vlan_start,
  88                                        max_value=self.p1_vlan_end,
  89                                        size=2, op="inc"),
  90                           STLVmWrFlowVar(fv_name="vlan",
  91                                          pkt_offset="Dot1Q.vlan"),
  92                           STLVmFlowVar(name="ip_src",
  93                                        min_value=self.p1_src_start_ip,
  94                                        max_value=self.p1_src_end_ip,
  95                                        size=4, op="random"),
  96                           STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
  97                           STLVmFlowVar(name="ip_dst",
  98                                        min_value=self.p1_dst_start_ip,
  99                                        max_value=self.p1_dst_end_ip,
 100                                        size=4, op="random"),
 101                           STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
 102                           STLVmFixIpv4(offset="IP")])
 103         # Direction 1 --> 0
 104         vm2 = STLScVmRaw([STLVmFlowVar(name="vlan",
 105                                        min_value=self.p2_vlan_start,
 106                                        max_value=self.p2_vlan_end,
 107                                        size=2, op="inc"),
 108                           STLVmWrFlowVar(fv_name="vlan",
 109                                          pkt_offset="Dot1Q.vlan"),
 110                           STLVmFlowVar(name="ip_src",
 111                                        min_value=self.p2_src_start_ip,
 112                                        max_value=self.p2_src_end_ip,
 113                                        size=4, op="random"),
 114                           STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
 115                           STLVmFlowVar(name="ip_dst",
 116                                        min_value=self.p2_dst_start_ip,
 117                                        max_value=self.p2_dst_end_ip,
 118                                        size=4, op="random"),
 119                           STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
 120                           STLVmFixIpv4(offset="IP")])
 121
 122         return base_pkt_a, base_pkt_b, vm1, vm2
 123
 124
 125 def register():
 126     """Register this traffic profile to T-rex.
 127
 128     Do not change this function.
 129
 130     :returns: Traffic streams.
 131     :rtype: Object
 132     """
 133     return TrafficStreams()