Allied Telesis AT-GS950/24 - Manual (Page 68)

Chapter 3: Port Configuration
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is 1000TX for 10/100/1000Base-T twisted-pair ports (1 through 20,
21R through 24R) and 100FX or 1000TX for the SFP ports (21
through 24) for copper or fiber SFP type.
Link Status - This parameter indicates the status of the link
between the port and the end node connected to the port. The
possible values are:
Up -This parameter indicates a valid link exists between the port
and the end node.
Down -This parameter indicates the port and the end node have
not established a valid link.
Admin. Status -This parameter indicates 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. You can enable the port to resume normal operation after
the problem has been fixed. You can also disable an unused port
to secure it from unauthorized connections. The possible values
are:
Ignore -This parameter applies to the All row only and indicates
that the Admin. Status field must be set individually for each
port.
Enabled - This parameter indicates the port is able to send and
receive Ethernet frames.
Disabled - This parameter indicates the port is not able to send
and receive Ethernet frames.
Jumbo -This parameter indicates whether or not jumbo frames
can be accepted by the switch. You may want to activate jumbo
frames when your switch will transmit video and audio files. The
possible values are:
Ignore -This parameter indicates that the All setting does not
apply to the Jumbo field. In other words, each port is set
individually.
Enabled -This parameter indicates the port is permitted to
accept jumbo frames.
Disabled -This parameter indicates the port is not permitted to
accept jumbo frames.