User`s guide

AT-S29 Management Software User’s Guide
109
Expansion Port
Information
The Expansion Port Information screen displays the port status, link
state, the communication speed and duplex mode, as well as the flow
control in use. To change any of the port settings, use the Expansion Port
Configuration menu. The parameters shown in the following figure and
table are for expansion ports.
Port
Duplex Status
Half
Down Disabled
1
Flow Control Status
Enabled
Admin Status Link Status
Expansion Slot 1 - 1-Port 1000Base-SX-SC
Parameter Description
Admin Status Shows in the port is enabled or not.
Link Status Indicates if the port has a valid connection to an
external device.
Duplex Status Displays the current duplex mode (half or full
duplex).
Flow Control
Status
Shows the flow control type in use. Flow control
can eliminate frame loss by "blocking" traffic from
end stations connected directly to the switch.
Back pressure is used for half duplex and IEEE
802.3x for full duplex. Note that flow control
should not be used if a port is connected to hub.