1 files changed, 45 insertions, 0 deletions
diff --git a/scripts/stl/udp_1pkt_src_ip_split.py b/scripts/stl/udp_1pkt_src_ip_split.py
new file mode 100644
index 00000000..d83da06e
--- /dev/null
+++ b/scripts/stl/udp_1pkt_src_ip_split.py
@@ -0,0 +1,45 @@
+from trex_stl_lib.api import *
+
+
+# split the range of IP to cores 
+#
+class STLS1(object):
+
+    def __init__ (self):
+        self.fsize  =64;
+
+    def create_stream (self):
+        # create a base packet and pad it to size
+        size = self.fsize - 4; # no FCS
+
+        base_pkt = Ether()/IP(src="16.0.0.1",dst="48.0.0.1")/UDP(dport=12,sport=1025)
+
+        pad = max(0, size - len(base_pkt)) * 'x'
+                             
+        vm = STLScVmRaw( [   STLVmFlowVar ( "ip_src",  min_value="10.0.0.1",
+                                            max_value="10.0.0.255", size=4, step=1,op="inc"),
+                             STLVmWrFlowVar (fv_name="ip_src", pkt_offset= "IP.src" ) # write ip to packet IP.src
+                             #STLVmFixIpv4(offset = "IP"),                                # fix checksum
+                                  ]
+                              ,split_by_field = "ip_src"  # split to cores base on the tuple generator 
+                              );
+
+        pkt = STLPktBuilder(pkt = base_pkt/pad,
+                            vm = vm)
+        stream = STLStream(packet = pkt,
+                         mode = STLTXCont())
+        #print(stream.to_code())
+        return stream
+
+
+    def get_streams (self, direction = 0, **kwargs):
+        # create 1 stream 
+        return [ self.create_stream() ]
+
+
+# dynamic load - used for trex console or simulator
+def register():
+    return STLS1()
+
+
+