Cable Diagnostics - D-Link Xstack DES-3528 Series Reference Manual

xStack® DES-3528/DES-3552 Series Layer 2 Managed Stackable Fast Ethernet Switch Web UI Reference Guide
The fields that can be configured are described below:
Parameter
Unit
From Port / To Port
Admin State
Mode
Discovery Time
Click the Apply button to implement 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:
Figure 10-18 DULD Settings window
Description
Select the unit to configure.
Select a range of ports to be configured.
Use the drop-down menu to enable or disable the unidirectional link detection status
of the ports.
Specify the unidirectional OAM operation mode of the ports.
Shutdown - If unidirectional link is detected, disable the port and log the event.
Normal - Only log unidirectional link event when unidirectional link is detected.
Enter the neighbor discovery time of the ports. If the discovery time ends, the
unidirectional link detection starts. The default discovery time is 5 seconds.
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