DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet Switch User Manual
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Parameter Description
From Port / To Port Use the pull-down menus to select the port or range of ports to be configured.
State Toggle this 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 dup lex/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 determ ine 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/F ull, 1000M/Full_M, 1000M/Full_S and 1000M/Full.
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 only support full duplex connections a nd take on certain
characteristics that are different from the other choices listed.
The 1000M/Full_M (master) and 1000M/Full_S (slave) param eters refer to connections
running a 1000BASE-T cable for connection between the Switch port and o ther device
capable of a gigabit connection. The master setting (1000M/F ull_M)
will allow the port to
advertise capabilities related to duplex, speed and physical layer type. The m aster setting will
also determine the master and slave relationship between the two connected physical la yers.
This relationship is necessary for establishing the timing control between th e two physical
layers. The timing control is set on a master physical layer b y 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 resu lt in a link down
status for both ports.
Flow Control Displays the flow control scheme used for the various port configurat ions. Ports configured
for full-duplex use 802.3x flow control, half-duplex ports use backpressure flo w control, and
Auto ports use an automatic selection of the two. The default is Disabl ed.
Address Learning When Enabled, destination and source MAC addresses are autom atically listed in the
forwarding table. The default setting is Enabled.
Medium Type This applies only to the Combo ports. If configuring the Com bo ports this defines the type of
transport medium used. SFP ports should be set at Fiber and the Combo 1000BASE-T por ts
should be set at Copper.
Click Apply to implement the new settings on the Switch. Click Refresh to reloa d the page.
The Switch supports a port description feature where the user may assign nam es to various ports on the Switch.
Use the From Port / To Port pull-down menu to choose a port or ran ge of ports to describe, and then enter a
description of the port(s). Click Apply to set the descriptions in the Port Description Table.
The Medium Type applies only to the Combo ports. If configuring the Combo ports this def ines the type of tranport
medium used. SFP ports should be nominated Fiber and the Combo 1000 BASE-T ports should be nominated Copper.
The result will be displayed in the appropriate switch port number slot ( C for copper ports and F for fiber ports).
To view this window, click Configuration > Port Configuration > Port Description as shown below: