Parameter
Description
State
Toggle the
State
<
Enabled
> field to either enable or disable a given port or group of ports.
Speed/Duplex
Toggle the
Speed/Duplex
field to either select the speed and duplex/half-duplex state of the port.
Auto
denotes auto-negotiation between 10 and 100Mbps devices, in full- or half-duplex.The
Auto
setting allows the
port to automatically determine the fastest settings the device the port is connected to can handle, and then to
use those settings.The other options are
Auto
,
10M/Half
,
10M/Full
,
100M/Half
and
100M/Full
,
1000M/Full_M
and
1000M/Full_S
.There is no automatic adjustment of port settings with any option other than Auto.
The Switch allows the user to configure two types of gigabit connections;
1000M/Full_M
and
1000M/Full_S
.
Gigabit connections are only supported in full duplex connections and take on certain characteristics that are
different from the other choices listed.
The
1000M/Full_M
(master) and
1000M/Full_S
(slave) parameters refer to connections running a 1000T cable
for connection between the Switch port and other device capable of a gigabit connection.The master setting
(
1000M/Full_M
) will allow the port to advertise capabilities related to duplex, speed and physical layer type.The
master setting will also determine the master and slave relationship between the two connected physical layers.
This relationship is necessary for establishing the timing control between the two physical layers.The timing
control is set on a master physical layer by a local source.The slave setting (
1000M/Full_S
) uses loop timing,
where the timing comes form a data stream received from the master. If one connection is set for
1000M/Full_M
, the other side of the connection must be set for
1000M/Full_S
.Any other configuration will
result in a link down status for both ports.
Flow Control
Displays the flow control scheme used for the various port configurations. Ports configured for full-duplex use
802.3x flow control, half-duplex ports use backpressure flow control, and
Auto
ports use an automatic selection
of the two.The default is
Disabled
.
Learning
Enable or disable MAC address learning for the selected ports.When
Enabled
, destination and source MAC
addresses are automatically listed in the forwarding table.When learning is
Disabled
, MAC addresses must be
manually entered into the forwarding table.This is sometimes done for reasons of security or efficiency. See the
section on
Forwarding/Filtering
for information on entering MAC addresses into the forwarding table.
The default setting is
Disabled
.
Click
Apply
to implement the new settings on the Switch.
6-5 Port Description
The AT-9724TS supports a port description feature where the user may name various ports on the Switch.To assign names to various ports, click the
Port
Description
on the
Configuration
menu:
Figure 6- 6. Port Description Setting and Port Description Table window
Use the
From
and
To
pull down menu to choose a port or range of ports to describe and
Unit
to choose the Switch in the switch stack, and then enter a
description of the port(s). Click
Apply
to set the descriptions in the
Port Description Table
.
33
Allied Telesyn AT-9724TS High-Density Layer 3 Stackable Gigabit Ethernet Switch
