diff --git a/src/main/java/org/onosproject/segmentrouting/ArpHandler.java b/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
index b696525..6ca6d19 100644
--- a/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
@@ -43,7 +43,7 @@
     private static Logger log = LoggerFactory.getLogger(ArpHandler.class);
 
     private SegmentRoutingManager srManager;
-    private NetworkConfigHandler config;
+    private DeviceConfiguration config;
 
     /**
      * Creates an ArpHandler object.
@@ -52,7 +52,7 @@
      */
     public ArpHandler(SegmentRoutingManager srManager) {
         this.srManager = srManager;
-        this.config = checkNotNull(srManager.networkConfigHandler);
+        this.config = checkNotNull(srManager.deviceConfiguration);
     }
 
     /**
@@ -96,8 +96,8 @@
         // ARP request for router
         if (isArpReqForRouter(deviceId, arpRequest)) {
             Ip4Address targetAddress = Ip4Address.valueOf(arpRequest.getTargetProtocolAddress());
-            sendArpResponse(arpRequest, config.getRouterMac(targetAddress));
 
+            sendArpResponse(arpRequest, config.getRouterMacForAGatewayIp(targetAddress));
         // ARP request for known hosts
         } else if (srManager.hostService.getHost(targetHostId) != null) {
             MacAddress targetMac = srManager.hostService.getHost(targetHostId).mac();
@@ -111,7 +111,7 @@
 
 
     private boolean isArpReqForRouter(DeviceId deviceId, ARP arpRequest) {
-        List<Ip4Address> gatewayIpAddresses = config.getGatewayIpAddress(deviceId);
+        List<Ip4Address> gatewayIpAddresses = config.getSubnetGatewayIps(deviceId);
         if (gatewayIpAddresses != null) {
             Ip4Address targetProtocolAddress = Ip4Address.valueOf(arpRequest
                     .getTargetProtocolAddress());
@@ -123,7 +123,7 @@
     }
 
     private boolean isArpReqForSubnet(DeviceId deviceId, ARP arpRequest) {
-        return config.getSubnetInfo(deviceId).stream()
+        return config.getSubnets(deviceId).stream()
                      .anyMatch((prefix)->
                      prefix.contains(Ip4Address.
                                      valueOf(arpRequest.
@@ -139,9 +139,8 @@
      */
     public void sendArpRequest(DeviceId deviceId, IpAddress targetAddress, ConnectPoint inPort) {
 
-        byte[] senderMacAddress = config.getRouterMacAddress(deviceId).toBytes();
-        byte[] senderIpAddress = config.getRouterIpAddress(deviceId)
-                .getIp4Prefix().address().toOctets();
+        byte[] senderMacAddress = config.getDeviceMac(deviceId).toBytes();
+        byte[] senderIpAddress = config.getRouterIp(deviceId).toOctets();
 
         ARP arpRequest = new ARP();
         arpRequest.setHardwareType(ARP.HW_TYPE_ETHERNET)
diff --git a/src/main/java/org/onosproject/segmentrouting/DefaultRoutingHandler.java b/src/main/java/org/onosproject/segmentrouting/DefaultRoutingHandler.java
index 50466c6..3a2d243 100644
--- a/src/main/java/org/onosproject/segmentrouting/DefaultRoutingHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/DefaultRoutingHandler.java
@@ -17,6 +17,7 @@
 
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
+import org.onlab.packet.Ip4Address;
 import org.onlab.packet.Ip4Prefix;
 import org.onlab.packet.IpPrefix;
 import org.onosproject.net.Device;
@@ -41,8 +42,8 @@
 
     private SegmentRoutingManager srManager;
     private RoutingRulePopulator rulePopulator;
-    private NetworkConfigHandler config;
     private HashMap<DeviceId, ECMPShortestPathGraph> currentEcmpSpgMap;
+    private DeviceConfiguration config;
     private Status populationStatus;
 
     /**
@@ -70,7 +71,7 @@
     public DefaultRoutingHandler(SegmentRoutingManager srManager) {
         this.srManager = srManager;
         this.rulePopulator = checkNotNull(srManager.routingRulePopulator);
-        this.config = checkNotNull(srManager.networkConfigHandler);
+        this.config = checkNotNull(srManager.deviceConfiguration);
         this.populationStatus = Status.IDLE;
         this.currentEcmpSpgMap = Maps.newHashMap();
     }
@@ -356,8 +357,8 @@
 
         // If both target switch and dest switch are edge routers, then set IP rule
         // for both subnet and router IP.
-        if (config.isEdgeRouter(targetSw) && config.isEdgeRouter(destSw)) {
-            List<Ip4Prefix> subnets = config.getSubnetInfo(destSw);
+        if (config.isEdgeDevice(targetSw) && config.isEdgeDevice(destSw)) {
+            List<Ip4Prefix> subnets = config.getSubnets(destSw);
             result = rulePopulator.populateIpRuleForSubnet(targetSw,
                                                            subnets,
                                                            destSw,
@@ -366,29 +367,28 @@
                 return false;
             }
 
-            IpPrefix routerIp = config.getRouterIpAddress(destSw);
-            result = rulePopulator.populateIpRuleForRouter(targetSw, routerIp, destSw, nextHops);
+            Ip4Address routerIp = config.getRouterIp(destSw);
+            IpPrefix routerIpPrefix = IpPrefix.valueOf(routerIp, IpPrefix.MAX_INET_MASK_LENGTH);
+            result = rulePopulator.populateIpRuleForRouter(targetSw, routerIpPrefix, destSw, nextHops);
             if (!result) {
                 return false;
             }
 
         // If the target switch is an edge router, then set IP rules for the router IP.
-        } else if (config.isEdgeRouter(targetSw)) {
-            IpPrefix routerIp = config.getRouterIpAddress(destSw);
-            result = rulePopulator.populateIpRuleForRouter(targetSw, routerIp, destSw, nextHops);
+        } else if (config.isEdgeDevice(targetSw)) {
+            Ip4Address routerIp = config.getRouterIp(destSw);
+            IpPrefix routerIpPrefix = IpPrefix.valueOf(routerIp, IpPrefix.MAX_INET_MASK_LENGTH);
+            result = rulePopulator.populateIpRuleForRouter(targetSw, routerIpPrefix, destSw, nextHops);
             if (!result) {
                 return false;
             }
 
         // If the target switch is an transit router, then set MPLS rules only.
-        } else if (config.isTransitRouter(targetSw)) {
+        } else if (!config.isEdgeDevice(targetSw)) {
             result = rulePopulator.populateMplsRule(targetSw, destSw, nextHops);
             if (!result) {
                 return false;
             }
-        } else {
-            log.warn("The switch {} is neither an edge router nor a transit router.", targetSw);
-            return false;
         }
 
         return true;
diff --git a/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java b/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java
index 0dfb3fd..d0721e9 100644
--- a/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java
+++ b/src/main/java/org/onosproject/segmentrouting/DeviceConfiguration.java
@@ -313,4 +313,31 @@
         log.debug("Cannot find a router for {}", gatewayIpAddress);
         return null;
     }
+
+
+    /**
+     * Checks if the host is in the subnet defined in the router with the
+     * device ID given.
+     *
+     * @param deviceId device identification of the router
+     * @param hostIp   host IP address to check
+     * @return true if the host is within the subnet of the router,
+     * false if no subnet is defined under the router or if the host is not
+     * within the subnet defined in the router
+     */
+    public boolean inSameSubnet(DeviceId deviceId, Ip4Address hostIp) {
+
+        List<Ip4Prefix> subnets = getSubnets(deviceId);
+        if (subnets == null) {
+            return false;
+        }
+
+        for (Ip4Prefix subnet: subnets) {
+            if (subnet.contains(hostIp)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
 }
diff --git a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
index 3f333a4..b3da8dc 100644
--- a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
@@ -39,7 +39,7 @@
 
     private static Logger log = LoggerFactory.getLogger(IcmpHandler.class);
     private SegmentRoutingManager srManager;
-    private NetworkConfigHandler config;
+    private DeviceConfiguration config;
 
     /**
      * Creates an IcmpHandler object.
@@ -48,7 +48,7 @@
      */
     public IcmpHandler(SegmentRoutingManager srManager) {
         this.srManager = srManager;
-        this.config = checkNotNull(srManager.networkConfigHandler);
+        this.config = checkNotNull(srManager.deviceConfiguration);
     }
 
     /**
@@ -69,8 +69,9 @@
         DeviceId deviceId = connectPoint.deviceId();
         Ip4Address destinationAddress =
                 Ip4Address.valueOf(ipv4.getDestinationAddress());
-        List<Ip4Address> gatewayIpAddresses = config.getGatewayIpAddress(deviceId);
-        IpPrefix routerIpPrefix = config.getRouterIpAddress(deviceId);
+        List<Ip4Address> gatewayIpAddresses = config.getSubnetGatewayIps(deviceId);
+        Ip4Address routerIp = config.getRouterIp(deviceId);
+        IpPrefix routerIpPrefix = IpPrefix.valueOf(routerIp, IpPrefix.MAX_INET_MASK_LENGTH);
         Ip4Address routerIpAddress = routerIpPrefix.getIp4Prefix().address();
 
         // ICMP to the router IP or gateway IP
@@ -122,8 +123,8 @@
         icmpReplyEth.setVlanID(icmpRequest.getVlanID());
 
         Ip4Address destIpAddress = Ip4Address.valueOf(icmpReplyIpv4.getDestinationAddress());
-        Ip4Address destRouterAddress = config.getDestinationRouterAddress(destIpAddress);
-        int sid = config.getMplsId(destRouterAddress);
+        Ip4Address destRouterAddress = config.getRouterIpAddressForASubnetHost(destIpAddress);
+        int sid = config.getSegmentId(destRouterAddress);
         if (sid < 0) {
             log.warn("Cannot find the Segment ID for {}", destAddress);
             return;
@@ -138,7 +139,7 @@
         IPv4 ipPacket = (IPv4) payload.getPayload();
         Ip4Address destIpAddress = Ip4Address.valueOf(ipPacket.getDestinationAddress());
 
-        if (sid == -1 || config.getMplsId(payload.getDestinationMAC()) == sid ||
+        if (sid == -1 || config.getSegmentId(payload.getDestinationMAC()) == sid ||
                 config.inSameSubnet(outport.deviceId(), destIpAddress)) {
             TrafficTreatment treatment = DefaultTrafficTreatment.builder().
                     setOutput(outport.port()).build();
@@ -164,4 +165,6 @@
             srManager.packetService.emit(packet);
         }
     }
+
+
 }
diff --git a/src/main/java/org/onosproject/segmentrouting/IpHandler.java b/src/main/java/org/onosproject/segmentrouting/IpHandler.java
index ee93f47..a46fb57 100644
--- a/src/main/java/org/onosproject/segmentrouting/IpHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/IpHandler.java
@@ -39,7 +39,7 @@
 
     private static Logger log = LoggerFactory.getLogger(IpHandler.class);
     private SegmentRoutingManager srManager;
-    private NetworkConfigHandler config;
+    private DeviceConfiguration config;
     private ConcurrentHashMap<Ip4Address, ConcurrentLinkedQueue<IPv4>> ipPacketQueue;
 
     /**
@@ -49,7 +49,7 @@
      */
     public IpHandler(SegmentRoutingManager srManager) {
         this.srManager = srManager;
-        this.config = checkNotNull(srManager.networkConfigHandler);
+        this.config = checkNotNull(srManager.deviceConfiguration);
         ipPacketQueue = new ConcurrentHashMap<Ip4Address, ConcurrentLinkedQueue<IPv4>>();
     }
 
@@ -129,8 +129,7 @@
                 for (Host dest: srManager.hostService.getHostsByIp(destIpAddress)) {
                     Ethernet eth = new Ethernet();
                     eth.setDestinationMACAddress(dest.mac());
-                    eth.setSourceMACAddress(config.getRouterMacAddress(
-                            deviceId));
+                    eth.setSourceMACAddress(config.getDeviceMac(deviceId));
                     eth.setEtherType(Ethernet.TYPE_IPV4);
                     eth.setPayload(ipPacket);
 
@@ -141,7 +140,9 @@
                     srManager.packetService.emit(packet);
                     ipPacketQueue.get(destIpAddress).remove(ipPacket);
                 }
+                ipPacketQueue.get(destIpAddress).remove(ipPacket);
             }
         }
     }
+
 }
diff --git a/src/main/java/org/onosproject/segmentrouting/NetworkConfigHandler.java b/src/main/java/org/onosproject/segmentrouting/NetworkConfigHandler.java
deleted file mode 100644
index ad210bb..0000000
--- a/src/main/java/org/onosproject/segmentrouting/NetworkConfigHandler.java
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright 2015 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.segmentrouting;
-
-import com.google.common.collect.Lists;
-
-import org.onlab.packet.Ip4Address;
-import org.onlab.packet.Ip4Prefix;
-import org.onlab.packet.IpPrefix;
-import org.onlab.packet.MacAddress;
-import org.onosproject.net.DeviceId;
-import org.onosproject.net.Link;
-import org.onosproject.net.PortNumber;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.List;
-import java.util.Set;
-
-/**
- * This class is temporary class and used only for test.
- * It will be replaced with "real" Network Config Manager.
- *
- * TODO: Knock off this wrapper and directly use DeviceConfiguration class
- */
-
-public class NetworkConfigHandler {
-
-    private static Logger log = LoggerFactory.getLogger(NetworkConfigHandler.class);
-    private SegmentRoutingManager srManager;
-    private DeviceConfiguration deviceConfig;
-
-    public NetworkConfigHandler(SegmentRoutingManager srManager,
-                                DeviceConfiguration deviceConfig) {
-        this.srManager = srManager;
-        this.deviceConfig = deviceConfig;
-    }
-
-    public List<Ip4Address> getGatewayIpAddress(DeviceId deviceId) {
-        return this.deviceConfig.getSubnetGatewayIps(deviceId);
-    }
-
-    public IpPrefix getRouterIpAddress(DeviceId deviceId) {
-        return IpPrefix.valueOf(deviceConfig.getRouterIp(deviceId), 32);
-    }
-
-    public MacAddress getRouterMacAddress(DeviceId deviceId) {
-        return deviceConfig.getDeviceMac(deviceId);
-    }
-
-    public boolean inSameSubnet(DeviceId deviceId, Ip4Address destIp) {
-
-        List<Ip4Prefix> subnets = getSubnetInfo(deviceId);
-        if (subnets == null) {
-            return false;
-        }
-
-        return subnets.stream()
-               .anyMatch((subnet) -> subnet.contains(destIp));
-    }
-
-    public boolean inSameSubnet(Ip4Address address, int sid) {
-        DeviceId deviceId = deviceConfig.getDeviceId(sid);
-        if (deviceId == null) {
-            log.warn("Cannot find a device for SID {}", sid);
-            return false;
-        }
-
-        return inSameSubnet(deviceId, address);
-    }
-
-    public List<Ip4Prefix> getSubnetInfo(DeviceId deviceId) {
-        return deviceConfig.getSubnets(deviceId);
-    }
-
-    public int getMplsId(DeviceId deviceId) {
-        return deviceConfig.getSegmentId(deviceId);
-    }
-
-    public int getMplsId(MacAddress routerMac) {
-        return deviceConfig.getSegmentId(routerMac);
-    }
-
-    public int getMplsId(Ip4Address routerIpAddress) {
-        return deviceConfig.getSegmentId(routerIpAddress);
-    }
-
-    public boolean isEcmpNotSupportedInTransit(DeviceId deviceId) {
-        return false;
-    }
-
-    public boolean isTransitRouter(DeviceId deviceId) {
-        return !(deviceConfig.isEdgeDevice(deviceId));
-    }
-
-
-    public boolean isEdgeRouter(DeviceId deviceId) {
-        return deviceConfig.isEdgeDevice(deviceId);
-    }
-
-    private List<PortNumber> getPortsToNeighbors(DeviceId deviceId, List<DeviceId> fwdSws) {
-
-        List<PortNumber> portNumbers = Lists.newArrayList();
-
-        Set<Link> links = srManager.linkService.getDeviceEgressLinks(deviceId);
-        for (Link link: links) {
-            for (DeviceId swId: fwdSws) {
-                if (link.dst().deviceId().equals(swId)) {
-                    portNumbers.add(link.src().port());
-                    break;
-                }
-            }
-        }
-
-        return portNumbers;
-    }
-
-    public List<PortNumber> getPortsToDevice(DeviceId deviceId) {
-        List<PortNumber> portNumbers = Lists.newArrayList();
-
-        Set<Link> links = srManager.linkService.getDeviceEgressLinks(deviceId);
-        for (Link link: links) {
-            if (link.dst().deviceId().equals(deviceId)) {
-                portNumbers.add(link.src().port());
-            }
-        }
-
-        return portNumbers;
-    }
-
-
-    public Ip4Address getDestinationRouterAddress(Ip4Address destIpAddress) {
-        return deviceConfig.getRouterIpAddressForASubnetHost(destIpAddress);
-    }
-
-    public DeviceId getDeviceId(Ip4Address ip4Address) {
-        return deviceConfig.getDeviceId(ip4Address);
-    }
-
-    public MacAddress getRouterMac(Ip4Address targetAddress) {
-        return deviceConfig.getRouterMacForAGatewayIp(targetAddress);
-    }
-}
diff --git a/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java b/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java
index 0a466de..c4db26c 100644
--- a/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java
+++ b/src/main/java/org/onosproject/segmentrouting/RoutingRulePopulator.java
@@ -48,10 +48,9 @@
 
     private static final Logger log = LoggerFactory.getLogger(RoutingRulePopulator.class);
 
-    private final SegmentRoutingManager srManager;
-    private final NetworkConfigHandler config;
     private AtomicLong rulePopulationCounter;
-
+    private SegmentRoutingManager srManager;
+    private DeviceConfiguration config;
     /**
      * Creates a RoutingRulePopulator object.
      *
@@ -59,7 +58,7 @@
      */
     public RoutingRulePopulator(SegmentRoutingManager srManager) {
         this.srManager = srManager;
-        this.config = checkNotNull(srManager.networkConfigHandler);
+        this.config = checkNotNull(srManager.deviceConfiguration);
         this.rulePopulationCounter = new AtomicLong(0);
     }
 
@@ -94,7 +93,7 @@
         sbuilder.matchEthType(Ethernet.TYPE_IPV4);
 
         tbuilder.setEthDst(hostMac)
-                .setEthSrc(config.getRouterMacAddress(deviceId))
+                .setEthSrc(config.getDeviceMac(deviceId))
                 .setOutput(outPort);
 
         TrafficTreatment treatment = tbuilder.build();
@@ -156,7 +155,7 @@
             ns = new NeighborSet(nextHops);
         } else {
             tbuilder.copyTtlOut();
-            ns = new NeighborSet(nextHops, config.getMplsId(destSw));
+            ns = new NeighborSet(nextHops, config.getSegmentId(destSw));
         }
 
         DefaultGroupKey groupKey = (DefaultGroupKey) srManager.getGroupKey(ns);
@@ -201,7 +200,7 @@
         Collection<TrafficTreatment> treatments = new ArrayList<>();
 
         // TODO Handle the case of Bos == false
-        sbuilder.matchMplsLabel(MplsLabel.mplsLabel(config.getMplsId(destSwId)));
+        sbuilder.matchMplsLabel(MplsLabel.mplsLabel(config.getSegmentId(destSwId)));
         sbuilder.matchEthType(Ethernet.MPLS_UNICAST);
 
         //If the next hop is the destination router, do PHP
@@ -262,15 +261,15 @@
             tbuilder.decMplsTtl();
         }
 
-        if (config.isEcmpNotSupportedInTransit(deviceId)
-                && config.isTransitRouter(deviceId)) {
+        if (!isECMPSupportedInTransitRouter() && !config.isEdgeDevice(deviceId)) {
             Link link = selectOneLink(deviceId, nextHops);
+            DeviceId nextHop = (DeviceId) nextHops.toArray()[0];
             if (link == null) {
                 log.warn("No link from {} to {}", deviceId, nextHops);
                 return null;
             }
-            tbuilder.setEthSrc(config.getRouterMacAddress(deviceId))
-                    .setEthDst(config.getRouterMacAddress(link.dst().deviceId()))
+            tbuilder.setEthSrc(config.getDeviceMac(deviceId))
+                    .setEthDst(config.getDeviceMac(nextHop))
                     .setOutput(link.src().port());
         } else {
             NeighborSet ns = new NeighborSet(nextHops);
@@ -292,6 +291,12 @@
         return tbuilder.build();
     }
 
+    private boolean isECMPSupportedInTransitRouter() {
+
+        // TODO: remove this function when objectives subsystem is supported.
+        return false;
+    }
+
     /**
      * Populates VLAN flows rules.
      * All packets are forwarded to TMAC table.
@@ -327,7 +332,7 @@
         // flow rule for IP packets
         TrafficSelector selectorIp = DefaultTrafficSelector.builder()
                 .matchEthType(Ethernet.TYPE_IPV4)
-                .matchEthDst(config.getRouterMacAddress(deviceId))
+                .matchEthDst(config.getDeviceMac(deviceId))
                 .build();
         TrafficTreatment treatmentIp = DefaultTrafficTreatment.builder()
                 .transition(FlowRule.Type.IP)
@@ -341,7 +346,7 @@
         // flow rule for MPLS packets
         TrafficSelector selectorMpls = DefaultTrafficSelector.builder()
                 .matchEthType(Ethernet.MPLS_UNICAST)
-                .matchEthDst(config.getRouterMacAddress(deviceId))
+                .matchEthDst(config.getDeviceMac(deviceId))
                 .build();
         TrafficTreatment treatmentMpls = DefaultTrafficTreatment.builder()
                 .transition(FlowRule.Type.MPLS)
diff --git a/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java b/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java
index 08d6220..956fc1e 100644
--- a/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java
+++ b/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java
@@ -99,15 +99,14 @@
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected MastershipService mastershipService;
-    protected NetworkConfigHandler networkConfigHandler = null;
     protected ArpHandler arpHandler = null;
     protected IcmpHandler icmpHandler = null;
     protected IpHandler ipHandler = null;
     protected RoutingRulePopulator routingRulePopulator = null;
     protected ApplicationId appId;
+    protected DeviceConfiguration deviceConfiguration = null;
 
     private DefaultRoutingHandler defaultRoutingHandler = null;
-    private DeviceConfiguration deviceConfiguration = null;
     private InternalPacketProcessor processor = new InternalPacketProcessor();
     private InternalEventHandler eventHandler = new InternalEventHandler();
 
@@ -129,8 +128,6 @@
         appId = coreService.registerApplication("org.onosproject.segmentrouting");
         networkConfigService.init();
         deviceConfiguration = new DeviceConfiguration(networkConfigService);
-        networkConfigHandler = new NetworkConfigHandler(this,
-                                                        deviceConfiguration);
         arpHandler = new ArpHandler(this);
         icmpHandler = new IcmpHandler(this);
         ipHandler = new IpHandler(this);
@@ -150,8 +147,8 @@
                             appId, deviceConfiguration, linkService, groupService);
                 groupHandler.createGroups();
                 groupHandlerMap.put(device.id(), groupHandler);
-                log.debug("Initiating default group handling for {}", device.id());
                 defaultRoutingHandler.populateTtpRules(device.id());
+                log.debug("Initiating default group handling for {}", device.id());
             } else {
                 log.debug("Activate: Local role {} "
                                 + "is not MASTER for device {}",
@@ -162,7 +159,6 @@
         }
 
         defaultRoutingHandler.startPopulationProcess();
-
         log.info("Started");
     }