D-Link xStack DES-3800 Series User Manual page 217

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
Click Apply to implement the settings made.
NOTE: Traffic Control cannot be implemented on ports that are set for
Link Aggregation (Port Trunking).
NOTE: Ports that are in the Shutdown forever mode will be seen as
Discarding in Spanning Tree windows and implementations though these
ports will still be forwarding BPDUs to the Switch's CPU.
NOTE: Ports that are in Shutdown Forever mode will be seen as link down
in all windows and screens until the user recovers these ports.
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