diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/config/impl/VplsConfigurationImpl.java b/apps/vpls/src/main/java/org/onosproject/vpls/config/impl/VplsConfigurationImpl.java
new file mode 100644
index 0000000..e977170
--- /dev/null
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/config/impl/VplsConfigurationImpl.java
@@ -0,0 +1,335 @@
+/*
+ * 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.vpls.config.impl;
+
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.ImmutableSetMultimap;
+import com.google.common.collect.SetMultimap;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.packet.VlanId;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.incubator.net.intf.Interface;
+import org.onosproject.incubator.net.intf.InterfaceService;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.config.NetworkConfigRegistry;
+import org.onosproject.net.config.NetworkConfigService;
+import org.onosproject.net.config.NetworkConfigListener;
+import org.onosproject.net.config.NetworkConfigEvent;
+import org.onosproject.net.config.ConfigFactory;
+import org.onosproject.net.config.basics.SubjectFactories;
+import org.onosproject.vpls.config.VplsConfig;
+import org.onosproject.vpls.config.VplsNetworkConfig;
+import org.onosproject.vpls.config.VplsConfigurationService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Implementation of VPLSConfigurationService which reads VPLS configuration
+ * from the network configuration service.
+ */
+@Component(immediate = true)
+@Service
+public class VplsConfigurationImpl implements VplsConfigurationService {
+    private static final String VPLS_APP = "org.onosproject.vpls";
+    private static final String VPLS = "vpls";
+    private static final String EMPTY = "";
+    private static final String CONFIG_NULL = "VPLS configuration not defined";
+    private static final String APP_ID_NULL = "VPLS application ID is null";
+    private static final String CONFIG_CHANGED = "VPLS configuration changed: {}";
+    private static final String CHECK_CONFIG =
+            "Checking the interface configuration";
+    private static final String NET_CONF_EVENT =
+            "Received NetworkConfigEvent {}";
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected NetworkConfigRegistry registry;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected CoreService coreService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected InterfaceService interfaceService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected NetworkConfigService configService;
+
+    private final Set<String> vplsAffectedByApi = new HashSet<>();
+
+    private VplsConfig vplsConfig = new VplsConfig();
+
+    private SetMultimap<String, String> ifacesOfVpls = HashMultimap.create();
+    private SetMultimap<String, String> oldIfacesOfVpls = HashMultimap.create();
+    private SetMultimap<String, Interface> vplsNetworks = HashMultimap.create();
+
+    private final InternalNetworkConfigListener configListener =
+            new InternalNetworkConfigListener();
+
+    private ConfigFactory<ApplicationId, VplsConfig> vplsConfigFactory =
+            new ConfigFactory<ApplicationId, VplsConfig>(
+                    SubjectFactories.APP_SUBJECT_FACTORY, VplsConfig.class, VPLS) {
+                @Override
+                public VplsConfig createConfig() {
+                    return new VplsConfig();
+                }
+            };
+
+    private ApplicationId vplsAppId;
+
+    @Activate
+    protected void active() {
+        configService.addListener(configListener);
+        registry.registerConfigFactory(vplsConfigFactory);
+        loadConfiguration();
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected  void deactive() {
+        registry.unregisterConfigFactory(vplsConfigFactory);
+        configService.removeListener(configListener);
+        log.info("Stopped");
+    }
+
+    /**
+     * Retrieves the VPLS configuration from network configuration.
+     */
+    private void loadConfiguration() {
+        loadAppId();
+
+        vplsConfig = configService.getConfig(vplsAppId, VplsConfig.class);
+
+        if (vplsConfig == null) {
+            log.warn(CONFIG_NULL);
+            configService.addConfig(vplsAppId, VplsConfig.class);
+            return;
+        }
+
+        oldIfacesOfVpls = ifacesOfVpls;
+        ifacesOfVpls = getConfigInterfaces();
+        vplsNetworks = getConfigCPoints();
+        log.debug(CONFIG_CHANGED, ifacesOfVpls);
+    }
+
+    /**
+     * Retrieves the application identifier from core service.
+     */
+    private void loadAppId() {
+        vplsAppId = coreService.getAppId(VPLS_APP);
+        if (vplsAppId == null) {
+            log.warn(APP_ID_NULL);
+        }
+    }
+
+    /**
+     * Applies a given configuration to the VPLS application.
+     */
+    private void applyConfig(VplsConfig vplsConfig) {
+        loadAppId();
+        configService.applyConfig(vplsAppId, VplsConfig.class, vplsConfig.node());
+    }
+
+    /**
+     * Retrieves the VPLS names and associated interfaces names from the configuration.
+     *
+     * @return a map VPLS names and associated interface names
+     */
+    private SetMultimap<String, String> getConfigInterfaces() {
+        SetMultimap<String, String> confIntfByVpls =
+                HashMultimap.create();
+
+        vplsConfig.vplsNetworks().forEach(vpls -> {
+            if (vpls.ifaces().isEmpty()) {
+                confIntfByVpls.put(vpls.name(), EMPTY);
+            } else {
+                vpls.ifaces().forEach(iface -> confIntfByVpls.put(vpls.name(), iface));
+            }
+        });
+
+        return confIntfByVpls;
+    }
+
+    /**
+     * Retrieves the VPLS names and associated interfaces from the configuration.
+     *
+     * @return a map VPLS names and associated interfaces
+     */
+    private SetMultimap<String, Interface> getConfigCPoints() {
+        log.debug(CHECK_CONFIG);
+
+        SetMultimap<String, Interface> confCPointsByIntf =
+                HashMultimap.create();
+
+        ifacesOfVpls.entries().forEach(vpls -> {
+            interfaceService.getInterfaces()
+                    .stream()
+                    .filter(intf -> intf.ipAddressesList().isEmpty())
+                    .filter(intf -> intf.name().equals(vpls.getValue()))
+                    .forEach(intf -> confCPointsByIntf.put(vpls.getKey(), intf));
+        });
+
+        return confCPointsByIntf;
+    }
+
+    /**
+     * Listener for VPLS configuration events.
+     */
+    private class InternalNetworkConfigListener implements NetworkConfigListener {
+        @Override
+        public void event(NetworkConfigEvent event) {
+            if (event.configClass() == VplsConfigurationService.CONFIG_CLASS) {
+                log.debug(NET_CONF_EVENT, event.configClass());
+                switch (event.type()) {
+                    case CONFIG_ADDED:
+                    case CONFIG_UPDATED:
+                    case CONFIG_REMOVED:
+                        loadConfiguration();
+                        break;
+
+                    default:
+                        break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public void addVpls(String name, Set<String> ifaces) {
+        VplsNetworkConfig vpls;
+
+        if (ifacesOfVpls.containsKey(name)) {
+            if (ifaces.isEmpty()) {
+                return;
+            }
+
+            ifaces.forEach(iface ->
+                    vplsConfig.addInterfaceToVpls(name, iface));
+        } else {
+            vpls = new VplsNetworkConfig(name, ifaces);
+            vplsConfig.addVpls(vpls);
+        }
+
+        vplsAffectedByApi.add(name);
+        applyConfig(vplsConfig);
+    }
+
+    @Override
+    public void removeVpls(String name) {
+        if (ifacesOfVpls.containsKey(name)) {
+            vplsConfig.removeVpls(name);
+            vplsAffectedByApi.add(name);
+            applyConfig(vplsConfig);
+        }
+    }
+
+    @Override
+    public void addInterfaceToVpls(String name, String iface) {
+        if (ifacesOfVpls.containsKey(name)) {
+            vplsConfig.addInterfaceToVpls(name, iface);
+            vplsAffectedByApi.add(name);
+            applyConfig(vplsConfig);
+        }
+    }
+
+    @Override
+    public void removeInterfaceFromVpls(String iface) {
+        if (ifacesOfVpls.containsValue(iface)) {
+            VplsNetworkConfig vpls = vplsConfig.getVplsFromInterface(iface);
+            vplsConfig.removeInterfaceFromVpls(vpls, iface);
+            vplsAffectedByApi.add(vpls.name());
+            applyConfig(vplsConfig);
+        }
+    }
+
+    @Override
+    public void cleanVpls() {
+        ifacesOfVpls.entries().forEach(e -> {
+            vplsConfig.removeVpls(e.getKey());
+            vplsAffectedByApi.add(e.getKey());
+        });
+        applyConfig(vplsConfig);
+    }
+
+    @Override
+    public Set<String> getVplsAffectedByApi() {
+        Set<String> vplsNames = ImmutableSet.copyOf(vplsAffectedByApi);
+
+        vplsAffectedByApi.clear();
+
+        return vplsNames;
+    }
+
+    @Override
+    public Set<Interface> getAllInterfaces() {
+        Set<Interface> allInterfaces = new HashSet<>();
+        vplsNetworks.values().forEach(allInterfaces::add);
+
+        return allInterfaces;
+    }
+
+    @Override
+    public Set<Interface> getVplsInterfaces(String name) {
+        Set<Interface> vplsInterfaces = new HashSet<>();
+        vplsNetworks.get(name).forEach(vplsInterfaces::add);
+
+        return vplsInterfaces;
+    }
+
+    @Override
+    public Set<String> getAllVpls() {
+        return ifacesOfVpls.keySet();
+    }
+
+    @Override
+    public Set<String> getOldVpls() {
+        return oldIfacesOfVpls.keySet();
+    }
+
+    @Override
+    public SetMultimap<String, Interface> getVplsNetworks() {
+        return ImmutableSetMultimap.copyOf(vplsNetworks);
+    }
+
+    @Override
+    public SetMultimap<String, Interface> getVplsNetwork(VlanId vlan,
+                                                        ConnectPoint connectPoint) {
+        String vplsNetworkName =
+                vplsNetworks.entries().stream()
+                        .filter(e -> e.getValue().connectPoint().equals(connectPoint))
+                        .filter(e -> e.getValue().vlan().equals(vlan))
+                        .map(e -> e.getKey())
+                        .findFirst()
+                        .orElse(null);
+        SetMultimap<String, Interface> result = HashMultimap.create();
+        if (vplsNetworkName != null && vplsNetworks.containsKey(vplsNetworkName)) {
+            vplsNetworks.get(vplsNetworkName)
+                    .forEach(intf -> result.put(vplsNetworkName, intf));
+            return result;
+        }
+        return null;
+    }
+}