diff --git a/apps/tenbi/utils/src/main/java/org/onosproject/teyang/utils/topology/NodeConverter.java b/apps/tenbi/utils/src/main/java/org/onosproject/teyang/utils/topology/NodeConverter.java
new file mode 100644
index 0000000..0af2b13
--- /dev/null
+++ b/apps/tenbi/utils/src/main/java/org/onosproject/teyang/utils/topology/NodeConverter.java
@@ -0,0 +1,567 @@
+/*
+ * 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.teyang.utils.topology;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.List;
+
+import org.onosproject.tetopology.management.api.KeyId;
+import org.onosproject.tetopology.management.api.node.InterfaceSwitchingCapability;
+import org.onosproject.tetopology.management.api.node.NetworkNodeKey;
+import org.onosproject.tetopology.management.api.node.TeNetworkTopologyId;
+import org.onosproject.tetopology.management.api.node.TeNode;
+import org.onosproject.tetopology.management.api.node.TerminationCapability;
+import org.onosproject.tetopology.management.api.node.TerminationPoint;
+import org.onosproject.tetopology.management.api.node.TerminationPointKey;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev20130715.ietfinettypes.DomainName;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev20151208.ietfnetwork.NetworkId;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev20151208.ietfnetwork.NodeId;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev20151208
+               .ietfnetwork.networks.network.DefaultNode;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev20151208
+               .ietfnetwork.networks.network.Node;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev20151208
+               .ietfnetwork.networks.network.node.DefaultSupportingNode;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev20151208
+               .ietfnetwork.networks.network.node.SupportingNode;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev20151208
+               .ietfnetworktopology.TpId;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev20151208
+               .ietfnetworktopology.networks.network.node.AugmentedNdNode;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev20151208
+               .ietfnetworktopology.networks.network.node.DefaultAugmentedNdNode;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.AugmentedNwNode;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.DefaultAugmentedNwNode;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.DefaultTe;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.DefaultTe.TeBuilder;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.Te;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.Config;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.DefaultConfig;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.DefaultState;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.DefaultTunnelTerminationPoint;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.State;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.TunnelTerminationPoint;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.config.DefaultTeNodeAttributes;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.config.TeNodeAttributes;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.config.tenodeattributes.ConnectivityMatrix;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.config.tenodeattributes
+                       .DefaultConnectivityMatrix;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+              .ietftetopology.networks.network.node.augmentednwnode.te.config.tenodeattributes.DefaultUnderlayTopology;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.config.tenodeattributes.UnderlayTopology;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.config.tenodeattributes
+                       .connectivitymatrix.DefaultFrom;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.config.tenodeattributes
+                       .connectivitymatrix.DefaultTo;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+               .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint
+                       .config.DefaultTerminationCapability;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.types.rev20160705.ietftetypes.TeNodeId;
+import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.types.rev20160705.ietftetypes.TeTopologyId;
+
+import com.google.common.collect.Lists;
+
+/**
+ * Node conversion functions.
+ */
+public final class NodeConverter {
+
+    private static final String E_NULL_TE_SUBSYSTEM_TE_NODE = "TeSubsystem teNode object cannot be null";
+    private static final String E_NULL_TE_SUBSYSTEM_TE_TUNNEL_TP = "TeSubsystem teTunnelTp object cannot be null";
+    private static final String E_NULL_TE_SUBSYSTEM_NODE = "TeSubsystem ndoe object cannot be null";
+    private static final String E_NULL_YANG_NODE = "Yang node object cannot be null";
+
+    // no instantiation
+    private NodeConverter() {
+    }
+
+    /**
+     * TE Node Config object conversion from TE Topology subsystem to YANG.
+     *
+     * @param teSubsystemTeNode TE node object
+     * @return TE Node Config YANG object
+     */
+    private static Config teNode2YangConfig(TeNode teSubsystemTeNode) {
+        checkNotNull(teSubsystemTeNode, E_NULL_TE_SUBSYSTEM_TE_NODE);
+
+        TeNodeAttributes.TeNodeAttributesBuilder teNodeAttributesConfigBuilder =
+                DefaultTeNodeAttributes.builder()
+                                       .isAbstract(teSubsystemTeNode.isAbstract());
+        if (teSubsystemTeNode.adminStatus() != null) {
+            teNodeAttributesConfigBuilder = teNodeAttributesConfigBuilder
+                    .adminStatus(EnumConverter
+                            .teSubsystem2YangAdminStatus(teSubsystemTeNode
+                            .adminStatus()));
+        }
+
+        if (teSubsystemTeNode.name() != null) {
+            teNodeAttributesConfigBuilder = teNodeAttributesConfigBuilder
+                    .name(DomainName.fromString(teSubsystemTeNode.name()));
+        }
+
+        if (teSubsystemTeNode.underlayTopology() != null) {
+            teNodeAttributesConfigBuilder = teNodeAttributesConfigBuilder
+                    .underlayTopology(teNode2YangUnderlayConfig(teSubsystemTeNode.underlayTopology()));
+        }
+
+        if (teSubsystemTeNode.connectivityMatrices() != null) {
+            ConnectivityMatrix.ConnectivityMatrixBuilder connectivityMatrixConfigBuilder =
+                    DefaultConnectivityMatrix.builder();
+            for (org.onosproject.tetopology.management.api.node.ConnectivityMatrix teCm : teSubsystemTeNode.
+                    connectivityMatrices()) {
+                connectivityMatrixConfigBuilder = connectivityMatrixConfigBuilder
+                        .id(teCm.id())
+                        .isAllowed(teCm.isAllowed())
+                        .from(new DefaultFrom.FromBuilder()
+                                .tpRef(TpId.fromString(teCm.from().tpId()
+                                        .toString()))
+                                .build())
+                        .to(new DefaultTo.ToBuilder()
+                                .tpRef(TpId.fromString(teCm.to().tpId()
+                                        .toString()))
+                                .build());
+                teNodeAttributesConfigBuilder = teNodeAttributesConfigBuilder
+                        .addToConnectivityMatrix(connectivityMatrixConfigBuilder
+                                .build());
+            }
+        }
+
+
+        Config.ConfigBuilder yangConfigBuilder = DefaultConfig.builder();
+        yangConfigBuilder = yangConfigBuilder.teNodeAttributes(teNodeAttributesConfigBuilder.build());
+
+        return yangConfigBuilder.build();
+    }
+
+    private static UnderlayTopology teNode2YangUnderlayConfig(TeNetworkTopologyId underlayTopology) {
+        UnderlayTopology.UnderlayTopologyBuilder underlayConfigBuilder = DefaultUnderlayTopology
+                .builder()
+                .networkIdRef(NetworkId.fromString(underlayTopology.getNetworkId().toString()))
+                .teTopologyIdRef(TeTopologyId
+                        .fromString(underlayTopology
+                                .getTopologyId().topologyId()));
+        return underlayConfigBuilder.build();
+    }
+
+    /**
+     * TE Node State object conversion from TE Topology subsystem to YANG.
+     *
+     * @param teSubsystemTeNode TE node object
+     * @return TE Node State YANG object
+     */
+    private static State teNode2YangState(TeNode teSubsystemTeNode) {
+        checkNotNull(teSubsystemTeNode, E_NULL_TE_SUBSYSTEM_TE_NODE);
+
+        org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708.ietftetopology
+                .networks.network.node.augmentednwnode.te.state.TeNodeAttributes
+                        .TeNodeAttributesBuilder teNodeAttributesStateBuilder =
+        org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708.ietftetopology
+                .networks.network.node.augmentednwnode.te.state.DefaultTeNodeAttributes.builder()
+                .isAbstract(teSubsystemTeNode.isAbstract());
+
+        if (teSubsystemTeNode.adminStatus() != null) {
+            teNodeAttributesStateBuilder = teNodeAttributesStateBuilder
+                    .adminStatus(EnumConverter
+                            .teSubsystem2YangAdminStatus(teSubsystemTeNode
+                            .adminStatus()));
+        }
+
+        if (teSubsystemTeNode.name() != null) {
+            teNodeAttributesStateBuilder = teNodeAttributesStateBuilder
+                    .name(DomainName.fromString(teSubsystemTeNode.name()));
+        }
+
+        if (teSubsystemTeNode.underlayTopology() != null) {
+            org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708.ietftetopology
+                    .networks.network.node.augmentednwnode.te.state.tenodeattributes.UnderlayTopology.
+                            UnderlayTopologyBuilder underlayStateBuilder =
+            org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708.ietftetopology
+                    .networks.network.node.augmentednwnode.te.state.tenodeattributes.DefaultUnderlayTopology
+                            .builder();
+            underlayStateBuilder = underlayStateBuilder
+                    .networkIdRef(NetworkId.fromString(teSubsystemTeNode
+                                                       .underlayTopology().getNetworkId().toString()))
+                    .teTopologyIdRef(TeTopologyId.fromString(teSubsystemTeNode
+                                                             .underlayTopology().getTopologyId().topologyId()));
+            teNodeAttributesStateBuilder = teNodeAttributesStateBuilder
+                    .underlayTopology(underlayStateBuilder.build());
+        }
+
+        if (teSubsystemTeNode.connectivityMatrices() != null) {
+            org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708.ietftetopology
+            .networks.network.node.augmentednwnode.te.state.tenodeattributes.ConnectivityMatrix
+            .ConnectivityMatrixBuilder
+            connectivityMatrixStateBuilder = org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf
+            .te.topology.rev20160708.ietftetopology.networks.network.node.augmentednwnode
+            .te.state.tenodeattributes.DefaultConnectivityMatrix
+                    .builder();
+            for (org.onosproject.tetopology.management.api.node.ConnectivityMatrix teCm : teSubsystemTeNode
+                    .connectivityMatrices()) {
+                connectivityMatrixStateBuilder = connectivityMatrixStateBuilder
+                        .id(teCm.id())
+                        .isAllowed(teCm.isAllowed())
+                        .from(new org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology
+                                .rev20160708.ietftetopology.networks.network.node.augmentednwnode.te.state
+                                .tenodeattributes.connectivitymatrix.DefaultFrom.FromBuilder()
+                                .tpRef(TpId.fromString(teCm.from().tpId()
+                                        .toString()))
+                                .build())
+                        .to(new org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology
+                            .rev20160708.ietftetopology.networks.network.node.augmentednwnode.te.state
+                            .tenodeattributes.connectivitymatrix.DefaultTo.ToBuilder()
+                                .tpRef(TpId.fromString(teCm.to().tpId()
+                                        .toString()))
+                                .build());
+                teNodeAttributesStateBuilder = teNodeAttributesStateBuilder
+                        .addToConnectivityMatrix(connectivityMatrixStateBuilder
+                                .build());
+            }
+        }
+
+        State.StateBuilder yangStateBuilder = DefaultState.builder();
+        yangStateBuilder = yangStateBuilder.teNodeAttributes(teNodeAttributesStateBuilder.build());
+
+        if (teSubsystemTeNode.opStatus() != null) {
+            yangStateBuilder = yangStateBuilder.operStatus(EnumConverter
+                    .teSubsystem2YangOperStatus(teSubsystemTeNode
+                            .opStatus()));
+        }
+
+        return yangStateBuilder.build();
+    }
+
+    /**
+     * TE Node TunnelTerminationPoint object conversion from TE Topology subsystem to YANG.
+     *
+     * @param teTunnelTp TE TunnelTerminationPoint object
+     * @return TunnelTerminationPoint YANG object
+     */
+    private static TunnelTerminationPoint teSubsystem2YangTtp(
+                           org.onosproject.tetopology.management.api.node.TunnelTerminationPoint teTunnelTp) {
+        checkNotNull(teTunnelTp, E_NULL_TE_SUBSYSTEM_TE_TUNNEL_TP);
+
+        TunnelTerminationPoint.TunnelTerminationPointBuilder tunnelTpBuilder =
+                DefaultTunnelTerminationPoint.builder().tunnelTpId(teTunnelTp.getTunnelTpId());
+
+        org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+                .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint
+                        .Config.ConfigBuilder ttpConfigBuilder =
+        org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+                .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint
+                        .DefaultConfig.builder();
+        org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+                .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint
+                        .State.StateBuilder ttpStateBuilder =
+        org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+                .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint
+                        .DefaultState.builder();
+
+        if (Long.valueOf(teTunnelTp.getInterLayerLockId()) != null) {
+            ttpConfigBuilder = ttpConfigBuilder.interLayerLockId(teTunnelTp.getInterLayerLockId());
+            ttpStateBuilder  = ttpStateBuilder.interLayerLockId(teTunnelTp.getInterLayerLockId());
+        }
+
+        if (teTunnelTp.getSwitchingCapabilities() != null) {
+            // FIXME: switchingCapabilities is a list in
+            // teSubsystem, but is not a list in yang. how to handle
+            // this?
+            for (InterfaceSwitchingCapability iscTe : teTunnelTp.getSwitchingCapabilities()) {
+                // ttpConfigBuilder =
+                // ttpConfigBuilder.switchingCapability(switchingCapability)
+                // ttpStateBuilder =
+                // ttpStateBuilder.switchingCapability(switchingCapability)
+            }
+        }
+
+        if (teTunnelTp.getTerminationCapabilities() != null) {
+            for (TerminationCapability tcap : teTunnelTp.getTerminationCapabilities()) {
+                org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+                        .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint.config
+                                .TerminationCapability.TerminationCapabilityBuilder
+                tcapConfigBuilder = DefaultTerminationCapability.builder();
+                // FIXME: at this moment, tcap does not have any getter or setter.
+                // add the following getLinkTpId possibly other attributes to Core data structure
+                // tcapConfigBuilder =
+                // tcapConfigBuilder.linkTp(TpId.fromString(tcap.getLinkTpId.toString()));
+                ttpConfigBuilder = ttpConfigBuilder.addToTerminationCapability(tcapConfigBuilder.build());
+
+                org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+                        .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint.state
+                                .TerminationCapability.TerminationCapabilityBuilder tcapStateBuilder =
+                org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.te.topology.rev20160708
+                        .ietftetopology.networks.network.node.augmentednwnode.te.tunnelterminationpoint.state
+                                .DefaultTerminationCapability.builder();
+                // FIXME: at this moment, tcap does not have any getter or setter.
+                // add the following getLinkTpId possibly other attributes to Core data structure
+                // tcapConfigBuilder =
+                // tcapConfigBuilder.linkTp(TpId.fromString(tcap.getLinkTpId.toString()));
+                ttpStateBuilder = ttpStateBuilder.addToTerminationCapability(tcapStateBuilder.build());
+            }
+        }
+
+        tunnelTpBuilder = tunnelTpBuilder.config(ttpConfigBuilder.build())
+                                         .state(ttpStateBuilder.build());
+
+        return tunnelTpBuilder.build();
+    }
+
+    /**
+     * Node object conversion from TE Topology subsystem to YANG.
+     *
+     * @param teSubsystem TE subsystem node object
+     * @return YANG node object
+     */
+    public static Node teSubsystem2YangNode(org.onosproject.tetopology.management.api.node.NetworkNode teSubsystem) {
+        checkNotNull(teSubsystem, E_NULL_TE_SUBSYSTEM_NODE);
+
+        NodeId nodeId = NodeId.fromString(teSubsystem.nodeId().toString());
+        Node.NodeBuilder builder = DefaultNode.builder().nodeId(nodeId);
+
+        if (teSubsystem.getSupportingNodeIds() != null) {
+            List<SupportingNode> sNodes = Lists.newArrayList();
+            SupportingNode.SupportingNodeBuilder spNodeBuilder = DefaultSupportingNode
+                    .builder();
+            for (NetworkNodeKey nodeKey : teSubsystem.getSupportingNodeIds()) {
+                sNodes.add(spNodeBuilder
+                        .networkRef(NetworkId
+                                .fromString(nodeKey.networkId().toString()))
+                        .nodeRef(NodeId.fromString(nodeKey.nodeId().toString()))
+                        .build());
+            }
+            builder = builder.supportingNode(sNodes);
+        }
+
+        if (teSubsystem.getTerminationPoints() != null) {
+            AugmentedNdNode.AugmentedNdNodeBuilder tpAugmentBuilder = DefaultAugmentedNdNode
+                    .builder();
+            List<TerminationPoint> teSubsystemTeTp = teSubsystem
+                    .getTerminationPoints();
+            for (TerminationPoint teTp : teSubsystemTeTp) {
+                tpAugmentBuilder.addToTerminationPoint(TerminationPointConverter
+                        .teSubsystem2YangTerminationPoint(teTp));
+            }
+            builder.addYangAugmentedInfo(tpAugmentBuilder.build(),
+                                         AugmentedNdNode.class);
+        }
+
+        if (teSubsystem.getTe() != null) {
+            AugmentedNwNode.AugmentedNwNodeBuilder nodeAugmentBuilder = DefaultAugmentedNwNode
+                    .builder();
+
+            TeNode teSubsystemTeNode = teSubsystem.getTe();
+
+            TeBuilder yangTeBuilder = DefaultTe.builder();
+
+            if (teSubsystemTeNode.teNodeId() != null) {
+                yangTeBuilder = yangTeBuilder.teNodeId(TeNodeId
+                        .fromString(teSubsystemTeNode.teNodeId().toString()));
+            }
+
+            // Set configuration data
+            // Set state data
+            yangTeBuilder = yangTeBuilder.config(teNode2YangConfig(teSubsystemTeNode))
+                                         .state(teNode2YangState(teSubsystemTeNode));
+
+            if (teSubsystemTeNode.tunnelTerminationPoints() != null) {
+                for (org.onosproject.tetopology.management.api.node.TunnelTerminationPoint
+                        teTunnelTp : teSubsystemTeNode.tunnelTerminationPoints()) {
+                    yangTeBuilder = yangTeBuilder.addToTunnelTerminationPoint(teSubsystem2YangTtp(teTunnelTp));
+                }
+            }
+
+            nodeAugmentBuilder = nodeAugmentBuilder.te(yangTeBuilder.build());
+            builder.addYangAugmentedInfo(nodeAugmentBuilder.build(),
+                                         AugmentedNwNode.class);
+        }
+        return builder.build();
+    }
+
+    /**
+     * Node object conversion from YANG to TE Topology subsystem.
+     *
+     * @param yangNode YANG node object
+     * @param yangNetworkId YANG networkId object
+     * @return TE subsystem node object
+     */
+    public static org.onosproject.tetopology.management.api.node.NetworkNode
+                      yang2TeSubsystemNode(Node yangNode, NetworkId yangNetworkId) {
+        checkNotNull(yangNode, E_NULL_YANG_NODE);
+
+        org.onosproject.tetopology.management.api.node.DefaultNetworkNode node =
+                new org.onosproject.tetopology.management.api.node.DefaultNetworkNode(
+                       KeyId.keyId(yangNode.nodeId().uri().string()));
+
+        if (yangNode.supportingNode() != null) {
+            List<NetworkNodeKey> spNodes = Lists.newArrayList();
+            for (SupportingNode yangSpNode : yangNode.supportingNode()) {
+                NetworkNodeKey nodeKey = new NetworkNodeKey(KeyId.keyId(yangSpNode.nodeRef().uri().toString()),
+                                                            KeyId.keyId(yangSpNode.networkRef().uri().toString()));
+                spNodes.add(nodeKey);
+            }
+            node.setSupportingNodeIds(spNodes);
+        }
+
+        if (yangNode.yangAugmentedInfoMap() != null
+                && !yangNode.yangAugmentedInfoMap().isEmpty()) {
+
+            AugmentedNdNode yangTpNodeAugment = (AugmentedNdNode) yangNode
+                    .yangAugmentedInfo(AugmentedNdNode.class);
+            if (yang2TeSubsystemTpNodeAugment(yangTpNodeAugment) != null) {
+                node.setTerminationPoints(yang2TeSubsystemTpNodeAugment(yangTpNodeAugment));
+            }
+
+            AugmentedNwNode yangNodeAugment = (AugmentedNwNode) yangNode
+                    .yangAugmentedInfo(AugmentedNwNode.class);
+            if (yangNodeAugment != null && yangNodeAugment.te() != null && yangNodeAugment.te().teNodeId() != null) {
+                Te yangNodeAugTe = yangNodeAugment.te();
+                TeNode teNode = yang2TeSubsystemNodeAugment(yangNodeAugTe, yangNetworkId, yangNode.nodeId());
+                node.setTe(teNode);
+            }
+        }
+
+        return node;
+    }
+
+    private static TeNode yang2TeSubsystemNodeConnectivityMatrix(TeNode teNode,
+            String networkId, String nodeId, List<ConnectivityMatrix> yangMatrix) {
+        List<org.onosproject.tetopology.management.api.node.ConnectivityMatrix> teCmList =
+                Lists.newArrayList();
+        for (ConnectivityMatrix cmYang : yangMatrix) {
+            Long id = cmYang.id();
+            TerminationPointKey from = new TerminationPointKey(
+                                           KeyId.keyId(networkId),
+                                           KeyId.keyId(nodeId),
+                                           KeyId.keyId(cmYang.from().tpRef().uri().toString()));
+            TerminationPointKey to = new TerminationPointKey(
+                                           KeyId.keyId(networkId),
+                                           KeyId.keyId(nodeId),
+                                           KeyId.keyId(cmYang.to().tpRef().uri().toString()));
+            boolean isAllowed = cmYang.isAllowed();
+            org.onosproject.tetopology.management.api.node.ConnectivityMatrix cmTe =
+                    new org.onosproject.tetopology.management.api.node.ConnectivityMatrix(
+                            id, from, to, isAllowed);
+            teCmList.add(cmTe);
+        }
+        teNode.setConnectivityMatrices(teCmList);
+        return teNode;
+    }
+
+    private static TeNode yang2TeSubsystemNodeUnderlayTopology(TeNode teNode,
+                                                               UnderlayTopology ut) {
+        TeNetworkTopologyId underlayTopology =
+                new TeNetworkTopologyId(KeyId.keyId(ut.networkIdRef().uri().toString()),
+                new org.onosproject.tetopology.management.api.TeTopologyId(
+                            ut.providerIdRef().uint32(),
+                            ut.clientIdRef().uint32(),
+                            ut.teTopologyIdRef().toString()));
+        teNode.setUnderlayTopology(underlayTopology);
+        return teNode;
+    }
+
+    private static TeNode yang2TeSubsystemTtp(TeNode teNode,
+                                              List<TunnelTerminationPoint> ttps) {
+        List<org.onosproject.tetopology.management.api.node.TunnelTerminationPoint> ttpTeList =
+                Lists.newArrayList();
+        for (TunnelTerminationPoint ttpYang : ttps) {
+            org.onosproject.tetopology.management.api.node.TunnelTerminationPoint ttpTe =
+                    new org.onosproject.tetopology.management.api.node.TunnelTerminationPoint(
+                            ttpYang.tunnelTpId());
+            ttpTe.setInterLayerLockId(ttpYang.config().interLayerLockId());
+            // FIXME: go through
+            // ttpYang.config().switchingCapability() and populate
+            // ttpTe.setSwitchingCapabilities(switchingCapabilities);
+            // FIXME: go through
+            // ttpYang.config().terminationCapability() and populate
+            // ttpTe.setTerminationCapability(terminationCapability);
+            ttpTeList.add(ttpTe);
+        }
+        teNode.setTunnelTerminationPoints(ttpTeList);
+
+        return teNode;
+    }
+
+    private static TeNode yang2TeSubsystemNodeAugment(Te yangNodeAugTe,
+            NetworkId yangNetworkId, NodeId yangNodeId) {
+        TeNode teNode = new TeNode(yangNodeAugTe.teNodeId().toString());
+        Config ynodeAugCfg = yangNodeAugTe.config();
+        if (ynodeAugCfg != null) {
+            TeNodeAttributes teNodeAttr = ynodeAugCfg.teNodeAttributes();
+            if (teNodeAttr != null) {
+                teNode.setAbstract(teNodeAttr.isAbstract());
+
+                if (teNodeAttr.adminStatus() != null) {
+                    teNode.setAdminStatus(EnumConverter.yang2TeSubsystemAdminStatus(
+                                                            ynodeAugCfg.teNodeAttributes().adminStatus()));
+                }
+
+                if (yangNodeAugTe.state() != null &&
+                        yangNodeAugTe.state().operStatus() != null) {
+                    teNode.setOpStatus(EnumConverter.yang2TeSubsystemOpStatus(
+                                                         yangNodeAugTe.state().operStatus()));
+                }
+
+                if (teNodeAttr.connectivityMatrix() != null) {
+                    teNode = yang2TeSubsystemNodeConnectivityMatrix(teNode,
+                                                                    yangNetworkId.uri().toString(),
+                                                                    yangNodeId.uri().toString(),
+                                                                    teNodeAttr.connectivityMatrix());
+                }
+
+                if (teNodeAttr.underlayTopology() != null) {
+                    teNode = yang2TeSubsystemNodeUnderlayTopology(teNode,
+                                                                  teNodeAttr.underlayTopology());
+                }
+            }
+        }
+
+        if (yangNodeAugTe.tunnelTerminationPoint() != null) {
+            teNode = yang2TeSubsystemTtp(teNode, yangNodeAugTe.tunnelTerminationPoint());
+        }
+        return teNode;
+    }
+
+    private static List<TerminationPoint> yang2TeSubsystemTpNodeAugment(AugmentedNdNode yangTpNodeAugment) {
+        if (yangTpNodeAugment.terminationPoint() != null) {
+            List<TerminationPoint> teTpList = Lists.newArrayList();
+            for (org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology
+                    .rev20151208.ietfnetworktopology.networks.network.node.augmentedndnode.TerminationPoint
+                    yangTpnode : yangTpNodeAugment.terminationPoint()) {
+                teTpList.add(TerminationPointConverter.yang2teSubsystemTerminationPoint(yangTpnode));
+            }
+            return teTpList;
+        }
+        return null;
+    }
+}