diff --git a/acctonUseDpctl/wred.py b/acctonUseDpctl/wred.py
new file mode 100755
index 0000000..81618b2
--- /dev/null
+++ b/acctonUseDpctl/wred.py
@@ -0,0 +1,77 @@
+import logging
+import oftest.base_tests as base_tests
+from oftest import config
+from oftest.testutils import *
+from util import *
+from accton_util import convertIP4toStr as toIpV4Str
+from accton_util import convertMACtoStr as toMacStr
+
+"""
+Not Verify yet, need to think how to verify meter
+"""
+
+class wred(base_tests.SimpleDataPlane):
+    """
+    [WRED]
+      WRED (DCTCP)
+
+    Inject  eth 1/1 untag, SA000000112233, DA000000000111, TCP ECN 01 [100%]
+    Output  eth 1/5 ECN 11
+
+    [CLI] interface eth 1/1 => switch priority default 1
+    dpctl tcp:192.168.1.1:6633 group-mod cmd=add,type=ind,group=0x20005 group=any,port=any,weight=0 output=5
+    dpctl tcp:192.168.1.1:6633 flow-mod table=10,cmd=add,prio=101 in_port=1,vlan_vid=0x1000/0xfff apply:set_field=vlan_vid=2 goto:20
+    dpctl tcp:192.168.1.1:6633 flow-mod table=10,cmd=add,prio=101 in_port=3,vlan_vid=0x1000/0xfff apply:set_field=vlan_vid=2 goto:20
+    dpctl tcp:192.168.1.1:6633 flow-mod table=60,cmd=add,prio=601 in_port=3 write:group=0x20005
+    dpctl tcp:192.168.1.1:6633 flow-mod table=60,cmd=add,prio=601 eth_type=0x0800,in_port=1 write:group=0x20005
+    dpctl tcp:192.168.1.1:6633 queue-mod type=wred,port=5,queue=0 min=1,max=60,ecn=100,drop=100
+    """
+    def runTest(self):
+        delete_all_flows(self.controller)
+        delete_all_groups(self.controller)
+
+        test_ports = sorted(config["port_map"].keys())
+
+        input_port = test_ports[0]
+        input_port2 = test_ports[1]
+        output_port = test_ports[2]
+
+        apply_dpctl_mod(self, config, "group-mod cmd=add,type=ind,group=0x2000"+str(output_port)+" group=any,port=any,weight=0 output="+str(output_port))
+        apply_dpctl_mod(self, config, "flow-mod table=10,cmd=add,prio=101 in_port="+str(input_port)+",vlan_vid=0x1000/0xfff apply:set_field=vlan_vid=2 goto:20")
+        apply_dpctl_mod(self, config, "flow-mod table=10,cmd=add,prio=101 in_port="+str(input_port2)+",vlan_vid=0x1000/0xfff apply:set_field=vlan_vid=2 goto:20")
+        apply_dpctl_mod(self, config, "flow-mod table=60,cmd=add,prio=601 in_port="+str(input_port2)+" write:group=0x2000"+str(output_port))
+        apply_dpctl_mod(self, config, "flow-mod table=60,cmd=add,prio=601 eth_type=0x0800,in_port="+str(input_port)+" write:group=0x2000"+str(output_port))
+        apply_dpctl_mod(self, config, "flow-mod table=20,cmd=add,prio=201 vlan_vid=200/0xfff,eth_dst=00:00:00:00:02:00,eth_type=0x0800 goto:28")
+        apply_dpctl_mod(self, config, "queue-mod type=wred,port="+str(output_port)+",queue=0 min=1,max=60,ecn=100,drop=100")
+
+        # TCP ecn = 01
+        input_pkt = simple_packet(
+                '70 72 cf 7c f3 a3 00 00 00 11 22 33 81 00 00 02 '
+                '08 00 45 01 00 4e 04 d2 00 00 7f 06 b2 7b c0 a8 '
+                '01 0a c0 a8 02 02 00 03 00 06 00 01 f7 fa 00 00 '
+                '00 00 50 00 04 00 2f 5d 00 00 00 00 00 00 00 00 '
+                '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 '
+                '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00')
+
+        # TCP ecn = 00
+        input_pkt2 = simple_packet(
+                '70 72 cf 7c f3 a3 00 00 00 11 22 33 81 00 00 02 '
+                '08 00 45 00 00 4e 04 d2 00 00 7f 06 b2 7b c0 a8 '
+                '01 0a c0 a8 02 02 00 03 00 06 00 01 f7 fa 00 00 '
+                '00 00 50 00 04 00 2f 5d 00 00 00 00 00 00 00 00 '
+                '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 '
+                '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00')
+
+        # TCP ecn = 11
+        output_pkt = simple_packet(
+                '70 72 cf 7c f3 a3 00 00 00 11 22 33 81 00 00 02 '
+                '08 00 45 11 00 4e 04 d2 00 00 7f 06 b2 7b c0 a8 '
+                '01 0a c0 a8 02 02 00 03 00 06 00 01 f7 fa 00 00 '
+                '00 00 50 00 04 00 2f 5d 00 00 00 00 00 00 00 00 '
+                '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 '
+                '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00')
+
+        self.dataplane.send(input_port, str(input_pkt))
+        self.dataplane.send(input_port2, str(input_pkt2))
+        verify_packet(self, str(output_pkt), output_port)
+