D-Link DGS-3024 - Switch Manual page 41

Parameter Description
State Toggle the State 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 100 Mbps 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 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
1000BASE-T 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
security or efficiency reasons. See the section on Forwarding 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.
DGS-3024 Gigabit Ethernet Switch Manual
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