D-Link DGS-3120-24TC Product Manual - Page 127

xStack® DGS-3120 Series Managed Switch Web UI Reference Guide The fields that can be configured are described below: Parameter Description VLAN Name/VID List The VLAN to which the specified filtering action applies. Tick the All check box to apply this feature to all the VLANs. Multicast Filtering Mode This drop-down menu allows you to select the action the Switch will take when it receives a multicast packet that requires forwarding to a port in the specified VLAN. Forward All Groups - This will instruct the Switch to forward all multicast packets to the specified VLAN. Forward Unregistered Groups - The multicast packets whose destination is an unregistered multicast group will be forwarded within the range of ports specified above. Filter Unregistered Groups - The multicast packets whose destination is a registered multicast group will be forwarded within the range of ports specified above. Click the Apply button to accept the changes made. Click the Find button to locate a specific entry based on the information entered. Enter a page number and click the Go button to navigate to a specific page when multiple pages exist. ERPS Settings (EI Mode Only) ERPS (Ethernet Ring Protection Switching) is the first industry standard (ITU-T G.8032) for Ethernet ring protection switching. It is achieved by integrating mature Ethernet operations, administration, and maintenance (OAM) * functions and a simple automatic protection switching (APS) protocol for Ethernet ring networks. ERPS provides sub-50ms protection for Ethernet traffic in a ring topology. It ensures that there are no loops formed at the Ethernet layer. One link within a ring will be blocked to avoid Loop (RPL, Ring Protection Link). When the failure happens, protection switching blocks the failed link and unblocks the RPL. When the failure clears, protection switching blocks the RPL again and unblocks the link on which the failure is cleared. G.8032 Terms and Concepts RPL (Ring Protection Link) - Link designated by mechanism that is blocked during Idle state to prevent loop on Bridged ring RPL Owner - Node connected to RPL that blocks traffic on RPL during Idle state and unblocks during Protected state R-APS (Ring - Automatic Protection Switching) - Protocol messages defined in Y.1731 and G.8032 used to coordinate the protection actions over the ring through RAPS VLAN (R-APS Channel). RAPS VLAN (R-APS Channel) - A separate ring-wide VLAN for transmission of R-APS messages Protected VLAN - The service traffic VLANs for transmission of normal network traffic This page is used to enable the ERPS function on the switch. NOTE: STP and LBD should be disabled on the ring ports before enabling ERPS. The ERPS cannot be enabled before the R-APS VLAN is created, and ring ports, RPL port, RPL owner, are configured. Note that these parameters cannot be changed when ERPS is enabled. To view the following window, click L2 Features > ERPS Settings, as show below: 119