diff --git a/src/org/kne/cloud/network/ipv6/IPv6TUNLoopbackNetworkLink.java b/src/org/kne/cloud/network/ipv6/IPv6TUNLoopbackNetworkLink.java
index 33a8ea2..2f0f545 100644
--- a/src/org/kne/cloud/network/ipv6/IPv6TUNLoopbackNetworkLink.java
+++ b/src/org/kne/cloud/network/ipv6/IPv6TUNLoopbackNetworkLink.java
@@ -260,18 +260,18 @@ public class IPv6TUNLoopbackNetworkLink extends AbstractIPv6NetworkLink
 		List<RouteItem> rlist = new ArrayList<>();
 
 		for (IPv6AddressGroup grp : getAddressGroups()) {
-			rlist.add(new RouteItem(new IPv6AddressGroup(grp.getAddress(), 128), grp.getAddress(), this, "Direct", 0, 1,
-					null, "D", true));
+			rlist.add(new RouteItem(new IPv6AddressGroup(grp.getAddress(), 128), grp.getAddress(), this, RouteItem.DIRECT, 0, 1,
+					null, "D"));
 		}
 
 		for (Iterator<Neighbor> iteratorx = getNeighborsInfo().iterator(); iteratorx.hasNext();) {
 			Neighbor addresses = (Neighbor) iteratorx.next();
 			RouteItem ri = new RouteItem(new IPv6AddressGroup(addresses.getAddress().getAddress(), 128),
-					addresses.getAddress().getAddress(), this, "Direct", 0, 128, null, "D", false);
+					addresses.getAddress().getAddress(), this, RouteItem.SRv6_ENDXSID, 0, 128, null, "D");
 			rlist.add(ri);
 
 			RouteItem ris = new RouteItem(addresses.getLocator(), addresses.getLocator().getAddress(), this,
-					"KLALB SRv6", 13, 128, null, "D", false);
+					RouteItem.SRv6_ENDSID, 13, 128, null, "D");
 			rlist.add(ris);
 
 		}
diff --git a/src/org/kne/cloud/network/ipv6/LoopbackIPv6NetworkLink.java b/src/org/kne/cloud/network/ipv6/LoopbackIPv6NetworkLink.java
index c8695f7..eb821e4 100644
--- a/src/org/kne/cloud/network/ipv6/LoopbackIPv6NetworkLink.java
+++ b/src/org/kne/cloud/network/ipv6/LoopbackIPv6NetworkLink.java
@@ -98,19 +98,18 @@ public class LoopbackIPv6NetworkLink extends AbstractIPv6NetworkLink implements
 			List<RouteItem> rlist = new ArrayList<>();
 			for(IPv6AddressGroup group:addressGroups) {
 			rlist.add(new RouteItem(new IPv6AddressGroup(group.getAddress(), 128),
-					group.getAddress(), this, "Direct", 0, 0, null, "D", true));
+					group.getAddress(), this, RouteItem.DIRECT, 0, 0, null, "D"));
 			}
 
 			for (Iterator<Neighbor> iteratorx = getNeighborsInfo().iterator(); iteratorx.hasNext();) {
 				Neighbor addresses = (Neighbor) iteratorx.next();
 				RouteItem ri = new RouteItem(new IPv6AddressGroup(addresses.getAddress().getAddress(), 128),
-						addresses.getAddress().getAddress(), this, "Direct", 0, 128, null, "D",
-						false);
+						addresses.getAddress().getAddress(), this,RouteItem.SRv6_ENDXSID, 0, 128, null, "D");
 				rlist.add(ri);
 
 				RouteItem ris = new RouteItem(addresses.getLocator(),
-						 addresses.getLocator().getAddress(), this, "KLALB SRv6", 13, 128,
-						 null, "D", false);
+						 addresses.getLocator().getAddress(), this, RouteItem.SRv6_ENDSID, 13, 128,
+						 null, "D");
 				rlist.add(ris);
 
 			}
diff --git a/src/org/kne/cloud/network/ipv6/RouteItem.java b/src/org/kne/cloud/network/ipv6/RouteItem.java
index 4e3c67f..e3c2379 100644
--- a/src/org/kne/cloud/network/ipv6/RouteItem.java
+++ b/src/org/kne/cloud/network/ipv6/RouteItem.java
@@ -4,6 +4,10 @@ import java.util.Objects;
 import java.util.function.Supplier;
 
 public class RouteItem implements Comparable<RouteItem>,Cloneable{
+	public static final String DIRECT="Direct";
+	public static final String SRv6_ENDSID="SRv6 ENDSID";
+	public static final String SRv6_ENDXSID="SRv6 ENDXSID";
+	
 	private IPv6AddressGroup destination;
 	private IPv6Address nexthop;
 	private IPv6NetworkLink destlink;
@@ -12,7 +16,6 @@ public class RouteItem implements Comparable<RouteItem>,Cloneable{
 	private long cost;
 	private String flag;
 	private Supplier<Long> costSupplier;
-	private boolean isLoopback;
 	public String getFlag() {
 		return flag;
 	}
@@ -34,7 +37,7 @@ public class RouteItem implements Comparable<RouteItem>,Cloneable{
 				 && pre == other.pre && Objects.equals(proto, other.proto);
 	}
 	public RouteItem(IPv6AddressGroup destination, IPv6Address nexthop, IPv6NetworkLink destlink, String proto, int pre,
-			long cost,String flag,boolean isLoopback) {
+			long cost,String flag) {
 		super();
 		this.destination = destination;
 		this.nexthop = nexthop;
@@ -43,10 +46,9 @@ public class RouteItem implements Comparable<RouteItem>,Cloneable{
 		this.pre = pre;
 		this.cost = cost;
 		this.flag=flag;
-		this.isLoopback=isLoopback;
 	}
 	public RouteItem(IPv6AddressGroup destination, IPv6Address nexthop, IPv6NetworkLink destlink, String proto, int pre,
-			long cost,Supplier<Long> costSupplier,String flag,boolean isLoopback) {
+			long cost,Supplier<Long> costSupplier,String flag) {
 		super();
 		this.destination = destination;
 		this.nexthop = nexthop;
@@ -56,7 +58,6 @@ public class RouteItem implements Comparable<RouteItem>,Cloneable{
 		this.cost = cost;
 		this.costSupplier=costSupplier;
 		this.flag=flag;
-		this.isLoopback=isLoopback;
 	}
 	public IPv6AddressGroup getDestination() {
 		return destination;
@@ -73,9 +74,6 @@ public class RouteItem implements Comparable<RouteItem>,Cloneable{
 	public int getPre() {
 		return pre;
 	}
-	public boolean isLoopback() {
-		return isLoopback;
-	}
 	@Override
 	public String toString() {
 		return getDestination()+"\t"+getProto()+"\t"+getPre()+"\t"+getCost()+"\t"+getFlag()+"\t"+getNexthop()+"\t"+getDestlink().getName();
diff --git a/src/org/kne/cloud/network/klalb/KLALBRemoteLink.java b/src/org/kne/cloud/network/klalb/KLALBRemoteLink.java
index 3bc8617..e94b476 100644
--- a/src/org/kne/cloud/network/klalb/KLALBRemoteLink.java
+++ b/src/org/kne/cloud/network/klalb/KLALBRemoteLink.java
@@ -959,12 +959,12 @@ public class KLALBRemoteLink extends AbstractControlledIPv6NetworkLink implement
 		for (Iterator<Neighbor> iteratorx = getNeighborsInfo().iterator(); iteratorx.hasNext(); ) {
 			Neighbor addresses = (Neighbor) iteratorx.next();
 			RouteItem ri = new RouteItem(new IPv6AddressGroup(addresses.getAddress().getAddress(), 128),
-					addresses.getAddress().getAddress(), this, "Direct", 0, 128, CostSupplierFactory.expectedDelaySupplier((DelayMonitorData) addresses.getMonitor(), status, algorithm::getRTO), "D", false);
+					addresses.getAddress().getAddress(), this, RouteItem.SRv6_ENDXSID, 0, 128, CostSupplierFactory.expectedDelaySupplier((DelayMonitorData) addresses.getMonitor(), status, algorithm::getRTO), "D");
 			rlist.add(ri);
 
 			if (addresses.getLocator() != null) {
 				RouteItem ris = new RouteItem(addresses.getLocator(), addresses.getLocator().getAddress(), this,
-						"KLALB SRv6", 13, 128, CostSupplierFactory.expectedDelaySupplier((DelayMonitorData) addresses.getMonitor(), status, algorithm::getRTO), "D", false);
+						RouteItem.SRv6_ENDSID, 13, 128, CostSupplierFactory.expectedDelaySupplier((DelayMonitorData) addresses.getMonitor(), status, algorithm::getRTO), "D");
 				rlist.add(ris);
 			}
 		}