resources/traffic_profiles/trex/trex-sl-3n-ethip4-ip4dst20000-1cnf.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 / IP /
  19  - Direction 0 --> 1:
  20    - Source IP address range:      10.0.0.1
  21    - Destination IP address range: 20.0.0.0 - 20.0.78.31
  22  - Direction 1 --> 0:
  23    - Source IP address range:      20.0.0.1
  24    - Destination IP address range: 10.0.0.0 - 10.0.78.31
  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         self.p2_dst_start_mac = '02:02:00:00:00:00'
  40         self.p2_dst_end_mac = '02:02:00:00:00:00'
  41
  42         # IPs used in packet headers.
  43         self.p1_src_start_ip = '10.0.0.1'
  44         self.p1_dst_start_ip = '20.0.0.0'
  45         self.p1_dst_end_ip = '20.0.78.31'
  46
  47         self.p2_src_start_ip = '20.0.0.1'
  48         self.p2_dst_start_ip = '10.0.0.0'
  49         self.p2_dst_end_ip = '10.0.78.31'
  50
  51     def define_packets(self):
  52         """Defines the packets to be sent from the traffic generator.
  53
  54         Packet definition: | ETH | IP |
  55
  56         :returns: Packets to be sent from the traffic generator.
  57         :rtype: tuple
  58         """
  59
  60         # Direction 0 --> 1
  61         base_pkt_a = (Ether() /
  62                       IP(src=self.p1_src_start_ip,
  63                          dst=self.p1_dst_start_ip,
  64                          proto=61))
  65         # Direction 1 --> 0
  66         base_pkt_b = (Ether(dst=self.p2_dst_start_mac) /
  67                       IP(src=self.p2_src_start_ip,
  68                          dst=self.p2_dst_start_ip,
  69                          proto=61))
  70
  71         # Direction 0 --> 1
  72         vm1 = STLScVmRaw([STLVmFlowVar(name="dst",
  73                                        min_value=self.p1_dst_start_ip,
  74                                        max_value=self.p1_dst_end_ip,
  75                                        size=4, op="inc"),
  76                           STLVmWrFlowVar(fv_name="dst", pkt_offset="IP.dst"),
  77                           STLVmFixIpv4(offset="IP")])
  78         # Direction 1 --> 0
  79         vm2 = STLScVmRaw([STLVmFlowVar(name="mac_dst",
  80                                        min_value=0,
  81                                        max_value=0,
  82                                        size=1, op="inc"),
  83                           STLVmWrFlowVar(fv_name="mac_dst", pkt_offset=5),
  84                           STLVmFlowVar(name="dst",
  85                                        min_value=self.p2_dst_start_ip,
  86                                        max_value=self.p2_dst_end_ip,
  87                                        size=4, op="inc"),
  88                           STLVmWrFlowVar(fv_name="dst", pkt_offset="IP.dst"),
  89                           STLVmFixIpv4(offset="IP")])
  90
  91         return base_pkt_a, base_pkt_b, vm1, vm2
  92
  93
  94 def register():
  95     """Register this traffic profile to T-rex.
  96
  97     Do not change this function.
  98
  99     :return: Traffic streams.
 100     :rtype: Object
 101     """
 102     return TrafficStreams()
 103