Port Error Disabled - D-Link xStack DGS-3426G User Manual

Enabled.
Medium Type If configuring the Combo ports, this defines the type of transport medium to be used, whether
copper or fiber.
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 1000 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 two types of gigabit connections; 1000M/Full_M and
1000M/Full_S. Gigabit connections only support 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.
Click Apply to implement the new settings on the Switch.

Port Error Disabled

The following window will display the information about ports that have had their connection status disabled, for reasons such as
STP loopback detection or link down status.
To view this window, click Administration > Port Configuration > Port Error Disabled, as shown below:
The following parameters are displayed:
Parameter
Port
Port State
Connection Status
Reason
®
xStack DGS-3426G Layer 2 Gigabit Ethernet Managed Switch
Figure 2 - 14 Port Error Disabled window
Description
Displays the port that has been error disabled.
Describes the current running state of the port, whether Enabled or Disabled.
This field will read the uplink status of the individual ports, whether Enabled or Disabled.
Describes the reason why the port has been error-disabled, such as a STP loopback
occurrence.
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