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DES-3010F/DES-3010FL/DES-3010G/DES-3016/DES-3018/DES-3026 Fast Ethernet Switch Manual
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The following parameters can be configured:
Parameter Description
State
Toggle the State <Enabled> field to either enable or disable a given port or group of ports.
MDIX
Medium dependent interface crossover is a female port connection on the Switch used to connect
to end stations, servers and hubs. The drop down menu allows the user to choose between Auto,
Normal or Cross. Auto will automatically switch to the proper configuration once a cable is
connected. Normal will be selected if a straight-through cable is being used and Cross should be
selected if a crossover cable is being used.
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 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 three types of gigabit connections; 1000M/Full,
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.
Fiber optic ports are statically set and unchangeable at 1000Mbps in Full-Duplex. The user may
configure these ports to be Auto or 1000M/Full.
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.
Click Apply to implement the new settings on the Switch.