D-Link xStack DGS-3120 Series Reference Guide

xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
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Figure 10-21 DULD Settings window
The fields that can be configured are described below:
Parameter Description
Unit
Select the unit you want to configure. (EI Mode Only)
From Port / To Port
Select a range of ports you wish to configure.
Admin State
Use the drop-down menu to enable or disable the selected ports unidirectional link
detection status.
Mode Use the drop-down menu to select Mode between Shutdown and Normal.
Shutdown – If any unidirectional link is detected, disable the port and log an event.
Normal - Only log an event when a unidirectional link is detected.
Discovery Time (5-
65535)
Enter these ports neighbor discovery time. If the discovery is timeout, the unidirectional
link detection will start.
Click the Apply button to accept the changes made.
Cable Diagnostics
The cable diagnostics feature is designed primarily for administrators or customer service representatives to verify
and test copper cables; it can rapidly determine the quality of the cables and the types of error.
To view this window, click OAM > Cable Diagnostics as shown below:

D-Link xStack DGS-3120 Series Specifications

General

Brand	D-Link
Model	xStack DGS-3120 Series
Category	Switch
Language	English