Allied Telesis AT-S39 - Manual (Page 114)

Section II: Local and Telnet Management
114
3 - Point-to-Point
This parameter defines whether the port is functioning as a point-
to-point port. For an explanation of this parameter, refer to Point-
to-Point Ports and Edge Ports on page 102.
4 - Edge Port
This parameter defines whether the port is functioning as an edge
port. For an explanation of this parameter, refer to Point-to-Point
Ports and Edge Ports on page 102.
After making your changes, type S to select Save Configuration
Changes.