1 # Copyright (c) 2021 Cisco and/or its affiliates.
3 # SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
5 # Licensed under the Apache License 2.0 or
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7 # except in compliance with one of these Licenses. You
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13 # Note: If this file is linked with Scapy, which is GPLv2+, your use of it
14 # must be under GPLv2+. If at any point in the future it is no longer linked
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21 # See the License for the specific language governing permissions and
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24 """Stream profile for T-rex traffic generator.
27 - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
28 - Packet: ETH / IPv6 /
30 - Source IP address range: 2001:1::1
31 - Destination IP address range: 2001:2::0 - 2001:2::F:423F
33 - Source IP address range: 2001:2::1
34 - Destination IP address range: 2001:1::0 - 2001:1::F:423F
37 from trex.stl.api import *
38 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
41 class TrafficStreams(TrafficStreamsBaseClass):
45 """Initialization and setting of streams' parameters."""
47 super(TrafficStreamsBaseClass, self).__init__()
49 # IPs used in packet headers.
50 self.p1_src_start_ip = u"2001:1::1"
51 self.p1_dst_start_ip = u"2001:2::0"
52 self.p1_dst_end_ip = u"2001:2::F:423F"
54 self.p2_src_start_ip = u"2001:2::1"
55 self.p2_dst_start_ip = u"2001:1::0"
56 self.p2_dst_end_ip = u"2001:1::F:423F"
58 def define_packets(self):
59 """Defines the packets to be sent from the traffic generator.
61 Packet definition: | ETH | IPv6 |
63 :returns: Packets to be sent from the traffic generator.
67 base_p1, count_p1 = self._get_start_end_ipv6(
71 base_p2, count_p2 = self._get_start_end_ipv6(
80 src=self.p1_src_start_ip,
81 dst=self.p1_dst_start_ip
88 src=self.p2_src_start_ip,
89 dst=self.p2_dst_start_ip
96 STLVmFlowVarRepeatableRandom(
99 max_value=base_p1 + count_p1,
102 # Cycle length. TRex does not allow any higher value.
107 pkt_offset=u"IPv6.dst",
115 STLVmFlowVarRepeatableRandom(
118 max_value=base_p2 + count_p2,
125 pkt_offset=u"IPv6.dst",
131 return base_pkt_a, base_pkt_b, vm1, vm2
135 """Register this traffic profile to T-rex.
137 Do not change this function.
139 :return: Traffic streams.
142 return TrafficStreams()