Allied Telesis AT-S84 - Manual (Page 230)

Chapter 18: Port Configuration
230 Section II: Web Browser Interface
parameter. For information, refer to “Viewing and Configuring Multiple
Ports” on page 226.
Admin. Status
The operating status of the port.
You can use this parameter to enable or disable a port. You may want
to disable a port and prevent packets from being forwarded if a
problem occurs with the node or cable connected to the port. After the
problem has been fixed, you can enable the port to resume normal
operation. You can also disable an unused port to secure it from
unauthorized connections. The possible values are:
Enabled - The port is able to send and receive Ethernet frames. This is
the default setting for a port.
Disabled - The port is disabled.
Mode
The speed and duplex mode settings for the port.
You can use this parameter to set the speed and duplex mode of a
port. The possible settings are:
Auto - The port is using Auto-Negotiation to set the operating speed
and duplex mode. This is the default setting for all ports. The actual
operating speed and duplex mode of the port are displayed in
parentheses (for example, “1000F” for 1000 Mbps full duplex mode)
after a port establishes a link with an end node.
100M/Full - 100 Mbps in full-duplex mode
10M/Full - 10 Mbps in full-duplex mode
100M/Half - 100 Mbps in half-duplex mode
10M/Half - 10 Mbps in half-duplex mode
When you select a setting, note the following:
ˆ When a twisted pair port is set to Auto-Negotiation, the default
setting, the end node should also be using Auto-Negotiation to
prevent a duplex mode mismatch. A switch port using Auto-
Negotiation defaults to half-duplex if it detects that the end node is
not using Auto-Negotiation. This can result in a mismatch if the end
node is operating at a fixed duplex mode of full-duplex. To avoid
this problem when connecting an end node with a fixed duplex
mode of full-duplex to a switch port, disable Auto-Negotiation on
the port and set the port’s speed and duplex mode manually.
ˆ Allied Telesis does not recommend manually setting a 10/100/
1000Base-T twisted pair port to either 1000 Mbps full duplex or
1000 Mbps half duplex. For 1000 Mbps operation, Allied Telesis
recommends setting the port to Auto-Negotiation.