diff --git a/utils/misc/src/main/java/org/onlab/packet/ChassisId.java b/utils/misc/src/main/java/org/onlab/packet/ChassisId.java
new file mode 100644
index 0000000..3029647
--- /dev/null
+++ b/utils/misc/src/main/java/org/onlab/packet/ChassisId.java
@@ -0,0 +1,74 @@
+package org.onlab.packet;
+
+/**
+ * The class representing a network device chassisId.
+ * This class is immutable.
+ */
+// TODO: Move this to a reasonable place.
+public final class ChassisId {
+
+    private static final long UNKNOWN = 0;
+    private final long value;
+
+    /**
+     * Default constructor.
+     */
+    public ChassisId() {
+        this.value = ChassisId.UNKNOWN;
+    }
+
+    /**
+     * Constructor from a long value.
+     *
+     * @param value the value to use.
+     */
+    public ChassisId(long value) {
+        this.value = value;
+    }
+
+    /**
+     * Constructor from a string.
+     *
+     * @param value the value to use.
+     */
+    public ChassisId(String value) {
+        this.value = Long.valueOf(value);
+    }
+
+    /**
+     * Get the value of the chassis id.
+     *
+     * @return the value of the chassis id.
+     */
+    public long value() {
+        return value;
+    }
+
+    /**
+     * Convert the Chassis Id value to a ':' separated hexadecimal string.
+     *
+     * @return the Chassis Id value as a ':' separated hexadecimal string.
+     */
+    @Override
+    public String toString() {
+        return Long.toHexString(this.value);
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (!(other instanceof ChassisId)) {
+            return false;
+        }
+
+        ChassisId otherChassisId = (ChassisId) other;
+
+        return value == otherChassisId.value;
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 17;
+        hash += 31 * hash + (int) (value ^ value >>> 32);
+        return hash;
+    }
+}