resources/traffic_profiles/trex/trex-sl-3n-ethip6-ip6dst1000000.py

   1 # Copyright (c) 2017 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 / IPv6 /
  19  - Direction 0 --> 1:
  20    - Source IP address range:      2001:1::1
  21    - Destination IP address range: 2001:2::0 - 2001:2::F:423F
  22  - Direction 1 --> 0:
  23    - Source IP address range:      2001:2::1
  24    - Destination IP address range: 2001:1::0 - 2001:1::F:423F
  25 """
  26
  27 from trex_stl_lib.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         # IPs used in packet headers.
  40         self.p1_src_start_ip = '2001:1::1'
  41         self.p1_dst_start_ip = '2001:2::0'
  42         self.p1_dst_end_ip = '2001:2::F:423F'
  43
  44         self.p2_src_start_ip = '2001:2::1'
  45         self.p2_dst_start_ip = '2001:1::0'
  46         self.p2_dst_end_ip = '2001:1::F:423F'
  47
  48     def define_packets(self):
  49         """Defines the packets to be sent from the traffic generator.
  50
  51         Packet definition: | ETH | IPv6 |
  52
  53         :returns: Packets to be sent from the traffic generator.
  54         :rtype: tuple
  55         """
  56
  57         base_p1, count_p1 = self._get_start_end_ipv6(self.p1_dst_start_ip,
  58                                                      self.p1_dst_end_ip)
  59         base_p2, count_p2 = self._get_start_end_ipv6(self.p2_dst_start_ip,
  60                                                      self.p2_dst_end_ip)
  61
  62         # Direction 0 --> 1
  63         base_pkt_a = Ether() / IPv6(src=self.p1_src_start_ip,
  64                                     dst=self.p1_dst_start_ip)
  65         # Direction 1 --> 0
  66         base_pkt_b = Ether() / IPv6(src=self.p2_src_start_ip,
  67                                     dst=self.p2_dst_start_ip)
  68
  69         # Direction 0 --> 1
  70         vm1 = STLScVmRaw([STLVmFlowVar(name="ipv6_dst",
  71                                        min_value=base_p1,
  72                                        max_value=base_p1 + count_p1,
  73                                        size=8, op="inc"),
  74                           STLVmWrFlowVar(fv_name="ipv6_dst",
  75                                          pkt_offset="IPv6.dst",
  76                                          offset_fixup=8)])
  77         # Direction 1 --> 0
  78         vm2 = STLScVmRaw([STLVmFlowVar(name="ipv6_dst",
  79                                        min_value=base_p2,
  80                                        max_value=base_p2 + count_p2,
  81                                        size=8, op="inc"),
  82                           STLVmWrFlowVar(fv_name="ipv6_dst",
  83                                          pkt_offset="IPv6.dst",
  84                                          offset_fixup=8)])
  85
  86         return base_pkt_a, base_pkt_b, vm1, vm2
  87
  88
  89 def register():
  90     """Register this traffic profile to T-rex.
  91
  92     Do not change this function.
  93
  94     :return: Traffic streams.
  95     :rtype: Object
  96     """
  97     return TrafficStreams()