resources/traffic_profiles/trex/trex-sl-3n-dot1qip4-vlan10ip4src254ip4dst254.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 - 10
  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 - 10
  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 = 10
  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
  51         # IPs used in packet headers.
  52         self.p1_src_start_ip = '10.0.0.1'
  53         self.p1_src_end_ip = '10.0.0.254'
  54
  55         self.p1_dst_start_ip = '20.0.0.1'
  56         self.p1_dst_end_ip = '20.0.0.254'
  57
  58         self.p2_src_start_ip = '20.0.0.1'
  59         self.p2_src_end_ip = '20.0.0.254'
  60
  61         self.p2_dst_start_ip = '10.0.0.1'
  62         self.p2_dst_end_ip = '10.0.0.254'
  63
  64     def define_packets(self):
  65         """Defines the packets to be sent from the traffic generator.
  66
  67         Packet definition: | ETH | DOT1Q | IP |
  68
  69         :returns: Packets to be sent from the traffic generator.
  70         :rtype: tuple
  71         """
  72
  73         # Direction 0 --> 1
  74         base_pkt_a = (Ether() /
  75                       Dot1Q(vlan=self.p1_vlan_start) /
  76                       IP(src=self.p1_src_start_ip,
  77                          dst=self.p1_dst_start_ip,
  78                          proto=61))
  79         # Direction 1 --> 0
  80         base_pkt_b = (Ether() /
  81                       Dot1Q(vlan=self.p2_vlan_start) /
  82                       IP(src=self.p2_src_start_ip,
  83                          dst=self.p2_dst_start_ip,
  84                          proto=61))
  85
  86         # Direction 0 --> 1
  87         vm1 = STLScVmRaw([STLVmFlowVar(name="vlan",
  88                                        min_value=self.p1_vlan_start,
  89                                        max_value=self.p1_vlan_end,
  90                                        size=2, op="inc"),
  91                           STLVmWrFlowVar(fv_name="vlan",
  92                                          pkt_offset="Dot1Q.vlan"),
  93                           STLVmFlowVar(name="ip_src",
  94                                        min_value=self.p1_src_start_ip,
  95                                        max_value=self.p1_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.p1_dst_start_ip,
 100                                        max_value=self.p1_dst_end_ip,
 101                                        size=4, op="random"),
 102                           STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
 103                           STLVmFixIpv4(offset="IP")])
 104         # Direction 1 --> 0
 105         vm2 = STLScVmRaw([STLVmFlowVar(name="vlan",
 106                                        min_value=self.p2_vlan_start,
 107                                        max_value=self.p2_vlan_end,
 108                                        size=2, op="inc"),
 109                           STLVmWrFlowVar(fv_name="vlan",
 110                                          pkt_offset="Dot1Q.vlan"),
 111                           STLVmFlowVar(name="ip_src",
 112                                        min_value=self.p2_src_start_ip,
 113                                        max_value=self.p2_src_end_ip,
 114                                        size=4, op="random"),
 115                           STLVmWrFlowVar(fv_name="ip_src", pkt_offset="IP.src"),
 116                           STLVmFlowVar(name="ip_dst",
 117                                        min_value=self.p2_dst_start_ip,
 118                                        max_value=self.p2_dst_end_ip,
 119                                        size=4, op="random"),
 120                           STLVmWrFlowVar(fv_name="ip_dst", pkt_offset="IP.dst"),
 121                           STLVmFixIpv4(offset="IP")])
 122
 123         return base_pkt_a, base_pkt_b, vm1, vm2
 124
 125
 126 def register():
 127     """Register this traffic profile to T-rex.
 128
 129     Do not change this function.
 130
 131     :returns: Traffic streams.
 132     :rtype: Object
 133     """
 134     return TrafficStreams()