Figure 4.75 - Configuration > 802.3ah EthernetLink OAM > Ethernet OAM Event Configuration
From Port / To Port: Specified a range of ports to be configured.
Link Event: Choose the type of Link Event, Link Monitor or Critical Link Event, to configure.
Link Monitor: The option is used to configure ports Ethernet OAM link monitoring error symbols, error
frames, error frame period, and error frame seconds. Link monitoring function provides a mechanism to
detect and indicate link faults under a variety of conditions. OAM monitors the statistics on the number of
frame errors as well as the number of coding symbol errors. If the number of error symbols or error frames is
equal to or greater than the specified threshold within the period specified by the Window option, and the
event notification state (Notify) is enabled, it generates an event to notify the remote OAM peer.
Use the Link Monitor menu to define the type of link monitor, and set the threshold, window and notifications
status.
Threshold: Specify the number of error symbols, error frames, error frame period, or error frame seconds in
the period that is required to be equal to or greater than in order for the event to be generated. Threshold
value can range from 0 – 4294967295.
Window: For error symbol and error frame, the available range is 1000 to 60000 ms and default value
1000ms. For error frame period the range is 14881 to 89286000, the default value is 148810 for FE port. For
error frame seconds the range is 10000 to 900000, the default value is 60000.
Click Apply to implement changes made.
Configuration > DULD > DULD Port Settings
The Switch features a D-Link Unidirectional Link Detection (DULD) module. The unidirectional link detection
provides a mechanism that can be used to detect unidirectional link for Ethernet switches whose PHYs do
not support unidirectional OAM operation. This function is established based on OAM, so OAM should be
enabled before starting detection.
To view this window, click Configuration > DULD > DULD Port Settings, as shown below:
Figure4.76 - Configuration > DULD > DULD Port Settings
From Port / To Port: Select the ports to be configured.
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