diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/PortSpeed.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/PortSpeed.java
new file mode 100644
index 0000000..6affab8
--- /dev/null
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/PortSpeed.java
@@ -0,0 +1,33 @@
+package org.projectfloodlight.openflow.types;
+
+/**
+ * Represents the speed of a port
+ */
+public enum PortSpeed {
+    /** no speed set */
+    SPEED_NONE(0),
+    SPEED_10MB(10),
+    SPEED_100MB(100),
+    SPEED_1GB(1_000),
+    SPEED_10GB(10_000),
+    SPEED_40GB(40_000),
+    SPEED_100GB(100_000),
+    SPEED_1TB(1_000_000);
+
+    private long speedInBps;
+    private PortSpeed(int speedInMbps) {
+        this.speedInBps = speedInMbps * 1000L*1000L;
+    }
+
+    public long getSpeedBps() {
+        return this.speedInBps;
+    }
+
+    public static PortSpeed max(PortSpeed s1, PortSpeed s2) {
+        return (s1.getSpeedBps() > s2.getSpeedBps()) ? s1 : s2;
+    }
+
+    public static PortSpeed min(PortSpeed s1, PortSpeed s2) {
+        return (s1.getSpeedBps() < s2.getSpeedBps()) ? s1 : s2;
+    }
+}