diff --git a/protocols/bgp/api/src/main/java/org/onosproject/bgp/controller/BgpDpid.java b/protocols/bgp/api/src/main/java/org/onosproject/bgp/controller/BgpDpid.java
index 8baa5f0..a0f5952 100644
--- a/protocols/bgp/api/src/main/java/org/onosproject/bgp/controller/BgpDpid.java
+++ b/protocols/bgp/api/src/main/java/org/onosproject/bgp/controller/BgpDpid.java
@@ -70,7 +70,7 @@
     /*
      * Get iso node ID in specified string format.
      */
-    private String isoNodeIdString(byte[] isoNodeId) {
+    public String isoNodeIdString(byte[] isoNodeId) {
         if (isoNodeId != null) {
             return String.format("%02x%02x.%02x%02x.%02x%02x", isoNodeId[0], isoNodeId[1],
                                  isoNodeId[2], isoNodeId[3],
diff --git a/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java b/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java
index 118bfe36..83fc693 100644
--- a/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java
+++ b/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java
@@ -243,13 +243,15 @@
                 if (tlv.getType() == NodeDescriptors.IGP_ROUTERID_TYPE) {
                     if (tlv instanceof IsIsPseudonode) {
                         deviceType = VIRTUAL;
-                        newBuilder.set(AnnotationKeys.ROUTER_ID, new String(((IsIsPseudonode) tlv).getIsoNodeId()));
+                        newBuilder.set(AnnotationKeys.ROUTER_ID, nodeUri.isoNodeIdString(((IsIsPseudonode) tlv)
+                                .getIsoNodeId()));
                     } else if (tlv instanceof OspfPseudonode) {
                         deviceType = VIRTUAL;
                         newBuilder
                                 .set(AnnotationKeys.ROUTER_ID, Integer.toString(((OspfPseudonode) tlv).getrouterID()));
                     } else if (tlv instanceof IsIsNonPseudonode) {
-                        newBuilder.set(AnnotationKeys.ROUTER_ID, new String(((IsIsNonPseudonode) tlv).getIsoNodeId()));
+                        newBuilder.set(AnnotationKeys.ROUTER_ID, nodeUri.isoNodeIdString(((IsIsNonPseudonode) tlv)
+                                .getIsoNodeId()));
                     } else if (tlv instanceof OspfNonPseudonode) {
                         newBuilder.set(AnnotationKeys.ROUTER_ID,
                                 Integer.toString(((OspfNonPseudonode) tlv).getrouterID()));