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tunmap: trex: Allow configuring payload size

Change-Id: I3760a1f8c2577d340f75b530cfaa6857eae3d73d
---
M testsuites/gtplab-sysmo2025/tunmap/trex/gtp_1pkt_simple.py
1 file changed, 6 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/upf-benchmark refs/changes/33/39933/1

diff --git a/testsuites/gtplab-sysmo2025/tunmap/trex/gtp_1pkt_simple.py b/testsuites/gtplab-sysmo2025/tunmap/trex/gtp_1pkt_simple.py
index 18bb5a7..f7f7d67 100644
--- a/testsuites/gtplab-sysmo2025/tunmap/trex/gtp_1pkt_simple.py
+++ b/testsuites/gtplab-sysmo2025/tunmap/trex/gtp_1pkt_simple.py
@@ -55,7 +55,7 @@
                                 GTPPDUSessionContainer(type=1,QFI=1)/
                                 IP(src="10.45.0.2",dst="192.168.16.152",version=4)/
                                 UDP()/
-                                (1400*'x'),
+                                (self.payload_len*'x'),
                         vm = vm
                     ),
              mode = STLTXCont())
@@ -71,9 +71,14 @@
                             type=int,
                             default=1,
                             help="The number of src IP addresses.")
+        parser.add_argument('--payload-len',
+                            type=int,
+                            default=1400,
+                            help="Payload size in bytes.")
         args = parser.parse_args(tunables)
         self.num_streams = args.num_streams
         self.num_addrs = args.num_addrs
+        self.payload_len = args.payload_len
         streams = []
         for addr_idx in range(self.num_addrs):
             streams.append(self.create_stream(direction = 0, addr_idx = addr_idx))

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