diff --git a/src/main/java/net/onrc/onos/core/util/Dpid.java b/src/main/java/net/onrc/onos/core/util/Dpid.java
new file mode 100644
index 0000000..dcc3a7c
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/util/Dpid.java
@@ -0,0 +1,88 @@
+package net.onrc.onos.core.util;
+
+import net.onrc.onos.core.util.serializers.DpidDeserializer;
+import net.onrc.onos.core.util.serializers.DpidSerializer;
+
+import org.codehaus.jackson.map.annotate.JsonDeserialize;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
+import org.openflow.util.HexString;
+
+/**
+ * The class representing a network switch DPID.
+ */
+@JsonDeserialize(using=DpidDeserializer.class)
+@JsonSerialize(using=DpidSerializer.class)
+public class Dpid {
+    static public final long UNKNOWN = 0;
+
+    private long value;
+
+    /**
+     * Default constructor.
+     */
+    public Dpid() {
+	this.value = Dpid.UNKNOWN;
+    }
+
+    /**
+     * Constructor from a long value.
+     *
+     * @param value the value to use.
+     */
+    public Dpid(long value) {
+	this.value = value;
+    }
+
+    /**
+     * Constructor from a string.
+     *
+     * @param value the value to use.
+     */
+    public Dpid(String value) {
+	this.value = HexString.toLong(value);
+    }
+
+    /**
+     * Get the value of the DPID.
+     *
+     * @return the value of the DPID.
+     */
+    public long value() { return value; }
+
+    /**
+     * Set the value of the DPID.
+     *
+     * @param value the value to set.
+     */
+    public void setValue(long value) {
+	this.value = value;
+    }
+
+    /**
+     * Convert the DPID value to a ':' separated hexadecimal string.
+     *
+     * @return the DPID value as a ':' separated hexadecimal string.
+     */
+    @Override
+    public String toString() {
+	return HexString.toHexString(this.value);
+    }
+
+    @Override
+    public boolean equals(Object other) {
+    	if (!(other instanceof Dpid)) {
+    		return false;
+    	}
+
+    	Dpid otherDpid = (Dpid) other;
+
+    	return value == otherDpid.value;
+    }
+
+    @Override
+    public int hashCode() {
+    	int hash = 17;
+    	hash += 31 * hash + (int)(value ^ value >>> 32); 
+    	return hash;
+    }
+}