diff --git a/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/InternalNetworkNode.java b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/InternalNetworkNode.java
new file mode 100644
index 0000000..72b2e3c
--- /dev/null
+++ b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/InternalNetworkNode.java
@@ -0,0 +1,177 @@
+/*
+ * Copyright 2016-present 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.impl;
+
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.collections.MapUtils;
+import org.onosproject.tetopology.management.api.KeyId;
+import org.onosproject.tetopology.management.api.node.NetworkNode;
+import org.onosproject.tetopology.management.api.node.NetworkNodeKey;
+import org.onosproject.tetopology.management.api.node.TeNodeKey;
+import org.onosproject.tetopology.management.api.node.TerminationPoint;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Objects;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+
+/**
+ * Network Node representation in store.
+ */
+public class InternalNetworkNode {
+    private List<NetworkNodeKey> supportingNodeIds;
+    private List<KeyId> tpIds;
+    private TeNodeKey teNodeKey;
+    private boolean parentUpdate;
+    private boolean childUpdate;
+
+    /**
+     * Creates an instance of InternalNetworkNode.
+     *
+     * @param node the network node
+     * @param parentUpdate the flag if the data is updated by parent
+     */
+    public InternalNetworkNode(NetworkNode node,  boolean parentUpdate) {
+        supportingNodeIds = node
+                .supportingNodeIds() == null ? null
+                                             : Lists.newArrayList(node
+                                                     .supportingNodeIds());
+        if (MapUtils.isNotEmpty(node.terminationPoints())) {
+            tpIds = Lists.newArrayList();
+            for (Map.Entry<KeyId, TerminationPoint> entry : node
+                    .terminationPoints().entrySet()) {
+                tpIds.add(entry.getKey());
+            }
+        }
+        this.parentUpdate = parentUpdate;
+    }
+
+    /**
+     * Returns the list of supporting node Ids.
+     *
+     * @return the supporting nodeIds
+     */
+    public List<NetworkNodeKey> supportingNodeIds() {
+        return supportingNodeIds == null ? null
+                                         : ImmutableList
+                                                 .copyOf(supportingNodeIds);
+    }
+
+    /**
+     * Sets the list of supporting node Ids.
+     *
+     * @param supportingNodeIds the supportingNodeIds to set
+     */
+    public void setSupportingNodeIds(List<NetworkNodeKey> supportingNodeIds) {
+        this.supportingNodeIds = supportingNodeIds == null ? null
+                                                           : Lists.newArrayList(supportingNodeIds);
+    }
+
+    /**
+     * Returns the list of termination point Ids.
+     *
+     * @return the termination point Ids
+     */
+    public List<KeyId> tpIds() {
+        return tpIds;
+    }
+
+    /**
+     * Sets the list of termination point Ids.
+     *
+     * @param tpIds the tpIds to set
+     */
+    public void setTpIds(List<KeyId> tpIds) {
+        this.tpIds = tpIds;
+    }
+
+    /**
+     * Returns the TE Node key.
+     *
+     * @return the teNodeKey
+     */
+    public TeNodeKey teNodeKey() {
+        return teNodeKey;
+    }
+
+    /**
+     * Sets the TE Node key.
+     *
+     * @param teNodeKey the teNodeKey to set
+     */
+    public void setTeNodeKey(TeNodeKey teNodeKey) {
+        this.teNodeKey = teNodeKey;
+    }
+
+    /**
+     * Returns the flag if the data was updated by parent change.
+     *
+     * @return value of parentUpdate
+     */
+    public boolean parentUpdate() {
+        return parentUpdate;
+    }
+
+    /**
+     * Returns the flag if the data was updated by child change.
+     *
+     * @return value of childUpdate
+     */
+    public boolean childUpdate() {
+        return childUpdate;
+    }
+
+    /**
+     * Sets the flag if the data was updated by child change.
+     *
+     * @param childUpdate the childUpdate value to set
+     */
+    public void setChildUpdate(boolean childUpdate) {
+        this.childUpdate = childUpdate;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(supportingNodeIds, tpIds, teNodeKey);
+    }
+
+    @Override
+    public boolean equals(Object object) {
+        if (this == object) {
+            return true;
+        }
+        if (object instanceof InternalNetworkNode) {
+            InternalNetworkNode that = (InternalNetworkNode) object;
+            return Objects.equal(supportingNodeIds, that.supportingNodeIds)
+                    && Objects.equal(tpIds, that.tpIds)
+                    && Objects.equal(teNodeKey, that.teNodeKey);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("supportingNodeIds", supportingNodeIds)
+                .add("tpIds", tpIds)
+                .add("teNodeKey", teNodeKey)
+                .add("parentUpdate", parentUpdate)
+                .add("childUpdate", childUpdate)
+                .toString();
+    }
+}