D-Link DGS-3426P Product Manual - Page 225

xStack® DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch Figure 3 - 80 ERPS RAPS VLAN Table - Edit Sub Ring window The following fields can be set: Parameter Description Sub-Ring R-APS VLAN Action Toggle between Add or Delete. Add connects the sub-ring to another ring. Delete disconnects the sub-ring from a connected ring. Sub-Ring R-APS VLAN Enter sub-ring R-APS VLAN. TC Propagation State This is used to configure the state of topology change propagation for the sub-ring. This setting is applied on the interconnection node. Click Apply to implement changes made. DULD 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 L2 Features > DULD Settings, as shown below. 216