● Layer-2 Tunnel Admin Edge Port
Select this check box if there can be an end device on a layer 2 tunnel port. Otherwise, a 
reconfiguration of the network will be triggered whenever a link to this port is modified. 
● Layer-2 Tunnel Auto Edge Port
Select this check box if you want to detect automatically whether an end device is connected 
at all layer 2 tunnel ports.
Procedure
1. Enter the data required for the configuration in the input boxes.
2. Click the "Set Values" button.
6.7.3.3 CIST Port
 MSTP-CIST port configuration     
When the page is called, the table displays the current status of the configuration of the port 
parameters.
To configure them, click the relevant cells in the port table.
Configuring with Web Based Management
6.7 "Layer 2" menu
SCALANCE W1780/W1740 according to IEEE 802.11ac Web Based Management
272 Configuration Manual, 11/2019, C79000-G8976-C485-03