NAT: Add performance testing TRex scripts and config (VPP-832)

Change-Id: I149a20f183b836db4c32fb4e4a8438b3a14c1c26
Signed-off-by: Matus Fabian <matfabia@cisco.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/plugins/nat/extras/nat_out2in_1Ms.py b/src/plugins/nat/extras/nat_out2in_1Ms.py
new file mode 100644
index 00000000000..54ca5d5bd11
--- /dev/null
+++ b/src/plugins/nat/extras/nat_out2in_1Ms.py
@@ -0,0 +1,35 @@
+from trex_stl_lib.api import *
+
+class STLS1(object):
+
+    def create_stream (self):
+        base_pkt = Ether()/IP(src="2.2.0.1")/UDP(sport=12)
+
+        pad = Padding()
+        if len(base_pkt) < 64:
+            pad_len = 64 - len(base_pkt)
+            pad.load = '\x00' * pad_len
+
+        vm = STLVM()
+
+        vm.tuple_var(name="tuple", ip_min="173.16.1.3", ip_max="173.16.40.18", port_min=1025, port_max=1124, limit_flows = 1000000)
+
+        vm.write(fv_name="tuple.ip", pkt_offset="IP.dst")
+        vm.fix_chksum()
+
+        vm.write(fv_name="tuple.port", pkt_offset="UDP.dport")
+
+        pkt = STLPktBuilder(pkt=base_pkt/pad, vm=vm)
+
+        return STLStream(packet=pkt, mode=STLTXCont())
+
+    def get_streams (self, direction = 0, **kwargs):
+        return [self.create_stream()]
+
+
+# dynamic load - used for trex console or simulator
+def register():
+    return STLS1()
+
+
+