4 Configuration
DGS-1210 series Metro Ethernet Managed Switch User Manual
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Figure 4.114 - Configuration > Multicast Forwarding & Filtering > Multicast Filtering
From Port / To Port:
Specify the ports of the VLAN on which the corresponding MAC address belongs to.
Multicast Filtering Mode:
This drop-down menu allows you to select the action the Switch will take when it
receives a multicast packet that is to be forwarded to one of the ports in the range specified above.
Forward Unregistered Groups -
This will instruct the Switch to forward a multicast packet whose
destination is an unregistered multicast group residing within the range of ports specified above.
Filter Unregistered Groups -
This will instruct the Switch to filter any multicast packets whose
destination is an unregistered multicast group residing within the range of ports specified above.
Configuration > ERPS Setting
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.
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.
The ERPS Setting page allows user to configure the settings of ERPS.
Figure 4.115 - Configuration > ERPS Setting
ERPS Global Settings:
ERPS State:
To enable or disable the ERPS state.
ERPS Log:
To enable or disable the ERPS log.
ERPS Trap:
To enable or disable the ERPS trap.
R-APS VLAN Settings:
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