diff --git a/apps/tetopology/src/main/java/org/onosproject/tetopology/management/api/node/NetworkNodeKey.java b/apps/tetopology/src/main/java/org/onosproject/tetopology/management/api/node/NetworkNodeKey.java
new file mode 100644
index 0000000..cdb6913
--- /dev/null
+++ b/apps/tetopology/src/main/java/org/onosproject/tetopology/management/api/node/NetworkNodeKey.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.tetopology.management.api.node;
+
+import org.onosproject.tetopology.management.api.KeyId;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Objects;
+
+/**
+ * Representation of a node key or node reference.
+ */
+public class NetworkNodeKey {
+    private final KeyId networkId;
+    private final KeyId nodeId;
+
+    /**
+     * Creates an instance of NetworkNodeKey.
+     *
+     * @param networkId network identifier
+     * @param nodeId node identifier
+     */
+    public NetworkNodeKey(KeyId networkId, KeyId nodeId) {
+        this.networkId = networkId;
+        this.nodeId = nodeId;
+    }
+
+    /**
+     * Returns the network identifier.
+     *
+     * @return network identifier
+     */
+    public KeyId networkId() {
+        return networkId;
+    }
+
+    /**
+     * Returns the node identifier.
+     *
+     * @return node identifier
+     */
+    public KeyId nodeId() {
+        return nodeId;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(networkId, nodeId);
+    }
+
+    @Override
+    public boolean equals(Object object) {
+        if (this == object) {
+            return true;
+        }
+        if (object instanceof NetworkNodeKey) {
+            NetworkNodeKey that = (NetworkNodeKey) object;
+            return Objects.equal(this.networkId, that.networkId) &&
+                    Objects.equal(this.nodeId, that.nodeId);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("networkId", networkId)
+                .add("nodeId", nodeId)
+                .toString();
+    }
+
+}