diff --git a/apps/kubevirt-node/app/src/main/java/org/onosproject/kubevirtnode/codec/KubevirtNodeCodec.java b/apps/kubevirt-node/app/src/main/java/org/onosproject/kubevirtnode/codec/KubevirtNodeCodec.java
index 4a7e77c..f1ea1c9 100644
--- a/apps/kubevirt-node/app/src/main/java/org/onosproject/kubevirtnode/codec/KubevirtNodeCodec.java
+++ b/apps/kubevirt-node/app/src/main/java/org/onosproject/kubevirtnode/codec/KubevirtNodeCodec.java
@@ -51,6 +51,7 @@
     private static final String TUNNEL_BRIDGE = "tunnelBridge";
     private static final String STATE = "state";
     private static final String PHYSICAL_INTERFACES = "phyIntfs";
+    private static final String GATEWAY_BRIDGE_NAME = "gatewayBridgeName";
 
     private static final String MISSING_MESSAGE = " is required in OpenstackNode";
 
@@ -90,6 +91,11 @@
             result.set(PHYSICAL_INTERFACES, phyIntfs);
         }
 
+        // serialize external bridge if exist
+        if (node.gatewayBridgeName() != null) {
+            result.put(GATEWAY_BRIDGE_NAME, node.gatewayBridgeName());
+        }
+
         return result;
     }
 
@@ -140,6 +146,11 @@
         }
         nodeBuilder.phyIntfs(phyIntfs);
 
+        JsonNode externalBridgeJson = json.get(GATEWAY_BRIDGE_NAME);
+        if (externalBridgeJson != null) {
+            nodeBuilder.gatewayBridgeName(externalBridgeJson.asText());
+        }
+
         log.trace("node is {}", nodeBuilder.build().toString());
 
         return nodeBuilder.build();