diff --git a/web/gui2/src/main/webapp/app/fw/nav/nav.service.ts b/web/gui2/src/main/webapp/app/fw/nav/nav.service.ts
new file mode 100644
index 0000000..22a903e
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+++ b/web/gui2/src/main/webapp/app/fw/nav/nav.service.ts
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2015-present Open Networking Foundation
+ *
+ * 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.
+ */
+import { Injectable } from '@angular/core';
+import { FnService } from '../util/fn.service';
+import { LogService } from '../../log.service';
+
+/**
+ * ONOS GUI -- Navigation Service
+ */
+@Injectable()
+export class NavService {
+    public showNav = false;
+
+    constructor(
+        private _fn_: FnService,
+        private log: LogService
+    ) {
+        this.log.debug('NavService constructed');
+    }
+
+    hideNav() {
+        this.showNav = !this.showNav;
+        if (!this.showNav) {
+            this.log.debug('Hiding Nav menu');
+        }
+    }
+
+    toggleNav() {
+        this.showNav = !this.showNav;
+        if (this.showNav) {
+            this.log.debug('Showing Nav menu');
+        } else {
+            this.log.debug('Hiding Nav menu');
+        }
+    }
+
+}