DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide 
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Figure 10-26 Ethernet OAM DULD Settings Window 
 
The fields that can be configured in Ethernet OAM DULD Settings are described below: 
Parameter  Description 
Recovery Time 
Enter the time interval value used by DULD to decide how long to recover the 
disabled port here. When the timer has expired, the disabled port by DULD will be 
recovered automatically. 0 represents that this function is disabled. This value is 
either 0 seconds or in the range from 60 to 1000000 seconds. 
Unit 
Select the Switch unit ID that will be used here. 
From Port - To Port 
Select the Switch port range that will be used here. 
Admin State 
Select to enable or disable the admin state here. This feature is used to enable 
Ethernet OAM unidirectional link detection on the specified port(s). 
Action 
Select the action that will be taken here. Options to choose from are Normal and 
Shutdown. 
Discovery Time 
Enter the discovery time value here. The range is from 5 to 65535 seconds. By 
default, this value is 5 seconds. If the OAM discovery does not successfully 
negotiate before discovery time expired, OAM unidirectional link detection will 
start. 
Click the Apply button to accept the changes made. 
 
The fields that can be configured in Ethernet OAM DULD Table are described below: 
Parameter  Description 
Unit 
Select the Switch unit ID that will be used here. 
From Port - To Port 
Select the Switch port range that will be used here. 
Click the Find button to locate a specific entry based on the information entered. 
Click the Show All button to display all the entries. 
 
DDM 
This folder contains windows that perform Digital Diagnostic Monitoring (DDM) functions on the Switch. There are 
windows that allow the user to view the digital diagnostic monitoring status of SFP/SFP+ modules inserting to the