Fix P4 exercise-1 to include starting the GUI
Change-Id: Id89788d95ba1611fe4e706edda86512fe21dc01f
diff --git a/apps/p4-tutorial/exercise-1.md b/apps/p4-tutorial/exercise-1.md
index 3db67c0..2ebba43 100644
--- a/apps/p4-tutorial/exercise-1.md
+++ b/apps/p4-tutorial/exercise-1.md
@@ -366,6 +366,12 @@
4. You can visualize the topology using the ONOS web UI.
+ Enter the following command to **activate the web interface**:
+
+ ```
+ onos> app activate org.onosproject.gui
+ ```
+
Open a browser from within the tutorial VM (e.g. Firefox) to
<http://127.0.0.1:8181/onos/ui/>. When asked, use the username `onos`
and password `rocks`. You should see a nice tree topology.