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Diffstat (limited to 'GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h-pps.py')
| -rw-r--r-- | GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h-pps.py | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h-pps.py b/GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h-pps.py new file mode 100644 index 0000000000..135e7fbdc7 --- /dev/null +++ b/GPL/traffic_profiles/trex/trex-astf-ethip4udp-1024h-pps.py @@ -0,0 +1,149 @@ +# Copyright (c) 2022 Cisco and/or its affiliates. +# +# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later +# +# Licensed under the Apache License 2.0 or +# GNU General Public License v2.0 or later; you may not use this file +# except in compliance with one of these Licenses. You +# may obtain a copy of the Licenses at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html +# +# Note: If this file is linked with Scapy, which is GPLv2+, your use of it +# must be under GPLv2+. If at any point in the future it is no longer linked +# with Scapy (or other GPLv2+ licensed software), you are free to choose +# Apache 2. +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Traffic profile for T-rex advanced stateful (astf) traffic generator. +Traffic profile: + - Two streams sent in directions 0 --> 1 (client -> server, requests) and + 1 --> 0 (server -> client, responses) at the same time. + - Packet: ETH / IP / UDP + - Direction 0 --> 1: + - Source IP address range: 192.168.0.0 - 192.168.3.255 + - Destination IP address range: 20.0.0.0 - 20.0.3.255 + - Direction 1 --> 0: + - Source IP address range: destination IP address from packet received + on port 1 + - Destination IP address range: source IP address from packet received + on port 1 + +This is a profile for PPS tests, it combines UDP connect and data transfer. +No delays, server response waits for full request. +""" + +from trex.astf.api import * +from profile_trex_astf_base_class import TrafficProfileBaseClass + + +class TrafficProfile(TrafficProfileBaseClass): + """Traffic profile.""" + + def define_profile(self): + """Define profile to be used by advanced stateful traffic generator. + + This method MUST return: + + return ip_gen, templates, None + + :returns: IP generator and profile templates for ASTFProfile(). + :rtype: tuple + """ + # IPs used in packet headers. + p1_src_start_ip = u"192.168.0.0" + p1_src_end_ip = u"192.168.3.255" + p1_dst_start_ip = u"20.0.0.0" + p1_dst_end_ip = u"20.0.3.255" + + # The difference between data size and frame size. + headers_size = 46 # 18B L2 + 20B IPv4 + 8B UDP. + + # TODO: Use the "connection protocol" from CPS traffic profile? + # Currently, the first data packet is all DUT sees about the session. + + # Avoid sending keepalives. + m_delay = 2000000 # delay 2000s (2,000,000 ms) + + # Data, not padded yet. + udp_data = u"" + # Pad the data to achieve the intended frame size. + udp_data += self._gen_padding(headers_size) + + # Safety check, the current programs send at least 1 packet. + if self.n_data_frames < 1: + raise RuntimeError("n_data_frames < 1: {self.n_data_frames}") + + # Client program. + prog_c = ASTFProgram(stream=False) + prog_c.set_keepalive_msg(m_delay) + prog_c.set_var(u"var1", self.n_data_frames) + prog_c.set_label(u"a:") + prog_c.send_msg(udp_data) + prog_c.jmp_nz(u"var1", u"a:") + # We should read the server response, + # but no reason to overload client workers even more. + + # Server program. + prog_s = ASTFProgram(stream=False) + prog_s.set_keepalive_msg(m_delay) + # If server closes too soon, new instances are started + # leading in too much replies. To prevent that, we need to recv all. + prog_s.recv_msg(self.n_data_frames) + # In packet loss scenarios, some instances never get here. + # This maybe increases server traffic duration, + # but no other way if we want to avoid + # TRex creating a second instance of the same server. + prog_s.set_var(u"var2", self.n_data_frames) + prog_s.set_label(u"b:") + prog_s.send_msg(udp_data) + prog_s.jmp_nz(u"var2", u"b:") + # VPP never duplicates packets, + # so it is safe to close the server instance now. + + # ip generators + ip_gen_c = ASTFIPGenDist( + ip_range=[p1_src_start_ip, p1_src_end_ip], + distribution=u"seq", + ) + ip_gen_s = ASTFIPGenDist( + ip_range=[p1_dst_start_ip, p1_dst_end_ip], + distribution=u"seq", + ) + ip_gen = ASTFIPGen( + glob=ASTFIPGenGlobal(ip_offset=u"0.0.0.1"), + dist_client=ip_gen_c, + dist_server=ip_gen_s, + ) + + # server association + s_assoc = ASTFAssociation(rules=ASTFAssociationRule(port=8080)) + + # template + temp_c = ASTFTCPClientTemplate( + program=prog_c, + ip_gen=ip_gen, + limit=64512, # TODO: Any benefit of making this configurable? + port=8080, + ) + temp_s = ASTFTCPServerTemplate(program=prog_s, assoc=s_assoc) + template = ASTFTemplate(client_template=temp_c, server_template=temp_s) + + return ip_gen, template, None + + +def register(): + """Register this traffic profile to T-Rex. + + Do not change this function. + + :return: Traffic Profiles. + :rtype: Object + """ + return TrafficProfile() |