Allied Telesis AT-S63 - Manual (Page 154)

Chapter 8: Port Trunking
154 Section I: Basic Features
7. To change the ports of a trunk, type 4 to select Trunk Ports and, when
prompted, enter the new ports of the trunk. A trunk can contain up to
eight ports. You can identify the ports individually (for example,
3,7,10), as a range (for example, 5-11), or both (for example, 2,4,11-14).
The new list of ports replaces the existing ports of the trunk.
8. Type M to select Modify Trunk.
The modifications to the port trunk are activated on the switch.
9. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.
10. Reconnect the cables to the ports of the trunk on the switch.
The modified port trunk is ready for network operations.