GPL/traffic_profiles/trex/trex-sl-3n-ethip6-ip6dst10000.py

   1 # Copyright (c) 2020 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::270F
  22  - Direction 1 --> 0:
  23    - Source IP address range:      2001:2::1
  24    - Destination IP address range: 2001:1::0 - 2001:1::270F
  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         # IPs used in packet headers.
  40         self.p1_src_start_ip = u"2001:1::1"
  41         self.p1_dst_start_ip = u"2001:2::0"
  42         self.p1_dst_end_ip = u"2001:2::270F"
  43
  44         self.p2_src_start_ip = u"2001:2::1"
  45         self.p2_dst_start_ip = u"2001:1::0"
  46         self.p2_dst_end_ip = u"2001:1::270F"
  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(
  58             self.p1_dst_start_ip,
  59             self.p1_dst_end_ip
  60         )
  61         base_p2, count_p2 = self._get_start_end_ipv6(
  62             self.p2_dst_start_ip,
  63             self.p2_dst_end_ip
  64         )
  65
  66         # Direction 0 --> 1
  67         base_pkt_a = (
  68             Ether() /
  69             IPv6(
  70                 src=self.p1_src_start_ip,
  71                 dst=self.p1_dst_start_ip
  72             )
  73         )
  74         # Direction 1 --> 0
  75         base_pkt_b = (
  76             Ether() /
  77             IPv6(
  78                 src=self.p2_src_start_ip,
  79                 dst=self.p2_dst_start_ip
  80             )
  81         )
  82
  83         # Direction 0 --> 1
  84         vm1 = STLScVmRaw(
  85             [
  86                 STLVmFlowVar(
  87                     name=u"ipv6_dst",
  88                     min_value=base_p1,
  89                     max_value=base_p1 + count_p1,
  90                     size=8,
  91                     op=u"inc"
  92                 ),
  93                 STLVmWrFlowVar(
  94                     fv_name=u"ipv6_dst",
  95                     pkt_offset=u"IPv6.dst",
  96                     offset_fixup=8
  97                 )
  98             ]
  99         )
 100         # Direction 1 --> 0
 101         vm2 = STLScVmRaw(
 102             [
 103                 STLVmFlowVar(
 104                     name=u"ipv6_dst",
 105                     min_value=base_p2,
 106                     max_value=base_p2 + count_p2,
 107                     size=8,
 108                     op=u"inc"
 109                 ),
 110                 STLVmWrFlowVar(
 111                     fv_name=u"ipv6_dst",
 112                     pkt_offset=u"IPv6.dst",
 113                     offset_fixup=8
 114                 )
 115             ]
 116         )
 117
 118         return base_pkt_a, base_pkt_b, vm1, vm2
 119
 120
 121 def register():
 122     """Register this traffic profile to T-rex.
 123
 124     Do not change this function.
 125
 126     :return: Traffic streams.
 127     :rtype: Object
 128     """
 129     return TrafficStreams()