Switch licenses in GPL directory

[csit.git] / GPL / traffic_profiles / trex / trex-astf-ethip4udp-262144h.py

diff --git a/GPL/traffic_profiles/trex/trex-astf-ethip4udp-262144h.py b/GPL/traffic_profiles/trex/trex-astf-ethip4udp-262144h.py
index 728eba8..8b3a8d8 100644 (file)
--- a/GPL/traffic_profiles/trex/trex-astf-ethip4udp-262144h.py
+++ b/GPL/traffic_profiles/trex/trex-astf-ethip4udp-262144h.py
@@ -1,9 +1,18 @@
 # Copyright (c) 2020 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
+#
+# 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,
@@ -25,6 +34,10 @@ Traffic profile:
      on port 1
    - Destination IP address range: source IP address from packet received
      on port 1
+
+This is a profile for CPS tests, it only sets up UDP session.
+No delays, no data transfer.
+Keepalive mechanism cannot be disabled, so it is at least set to long waits.
 """
 
 from trex.astf.api import *
@@ -53,8 +66,7 @@ class TrafficProfile(TrafficProfileBaseClass):
         # Headers length
         self.headers_size = 42  # 14B l2 + 20B ipv4 + 8B udp
 
-        # Required UDP keepalive value for T-Rex
-        self.udp_keepalive = 2000  # 2s (2,000 msec)
+        # No need to set keepalive, both programs end just after start&send.
 
     def define_profile(self):
         """Define profile to be used by advanced stateful traffic generator.
@@ -70,27 +82,18 @@ class TrafficProfile(TrafficProfileBaseClass):
 
         # client commands
         prog_c = ASTFProgram(stream=False)
-        # set the keepalive timer for UDP flows to not close udp session
-        # immediately after packet exchange
-        prog_c.set_keepalive_msg(self.udp_keepalive)
         # send REQ message
         prog_c.send_msg(self.udp_req)
-        # receive RES message
-        prog_c.recv_msg(1)
-
-        prog_c.delay(self.udp_keepalive * 1000)  # delay is defined in usec
+        # No need to process the response, seeing L2 counter is enough.
+        # Client program can end here.
 
         # server commands
         prog_s = ASTFProgram(stream=False)
-        # set the keepalive timer for UDP flows to not close udp session
-        # immediately after packet exchange
-        prog_c.set_keepalive_msg(self.udp_keepalive)
-        # receive REQ message
-        prog_s.recv_msg(1)
+        # When server instance is created means REQ is visible in L2 counter.
+        # No need to receive explicitly?
         # send RES message
         prog_s.send_msg(self.udp_res)
-
-        prog_s.delay(self.udp_keepalive * 1000)  # delay is defined in usec
+        # Server program can end here.
 
         # ip generators
         ip_gen_c = ASTFIPGenDist(