fix vlan interface dashboard for epipes

brian_dashboard_manager/provision/strategies.py

@@ -407,7 +407,11 @@ class VLANDashboardStrategy(DashboardStrategy):
             router = host.replace(".geant.net", "")
             panel_title = f"{router} - {{}} - {interface_name} - {description}"
 
-            base_interface = interface_name.split(".")[0]
+            if ':' in interface_name:
+                # Epipe interfaces have a colon in their name
+                base_interface = interface_name.split(":")[0]
+            else:
+                base_interface = interface_name.split(".")[0]
             dropdown = dropdowns.setdefault(base_interface, [])
 
             dropdown.append(