diff --git a/openflow_input/circuit b/openflow_input/circuit
index 01a1432..0f436a4 100644
--- a/openflow_input/circuit
+++ b/openflow_input/circuit
@@ -114,7 +114,6 @@
     list(of_port_optical_t) entries;	
 };
 
-
 struct of_port_optical {
     of_port_no_t port_no;
     uint16_t length;
@@ -132,9 +131,33 @@
    uint16_t length;
    uint8_t port_signal_type; 
    uint8_t reserved;
-   pad(2);
+   pad(1);
+   uint8_t port_type;	
 };
 
+struct of_circuit_port_status : of_experimenter {
+    uint8_t version;
+    uint8_t type == 4;
+    uint16_t length;
+    uint32_t xid;
+    uint32_t experimenter == 0x748771;
+    uint32_t exp_type == 12;
+    enum ofp_port_reason reason;
+    pad(7);
+    of_port_no_t port_no;
+    uint16_t lengths;
+    pad(2);
+    of_mac_addr_t hw_addr;
+    pad(2);
+    of_port_name_t name;
+    enum ofp_port_config config;
+    enum ofp_port_state state;
+    uint64_t ignore;	
+};
+
+ 
+
+
 struct of_port_optical_transport_application_code 
 {
    uint16_t feature_type;