Allied Telesis AT-S95 WEB - Manual (Page 159)

Configuring Multicast Forwarding
Page 159
Defining Unregistered Multicast Settings
Multicast frames are generally forwarded to all ports in the VLAN. If IGMP Snooping is enabled, the device learns
about the existence of Multicast groups and monitors which ports have joined what Multicast group. Multicast
groups can also be statically enabled. This enables the device to forward the Multicast frames (from a registered
Multicast group) only to ports that are registered to that Multicast group.
The Unregistered Multicast Page contains fields to handle Multicast frames that belong to Unregistered Multicast
groups. Unregistered Multicast groups are the groups that are not known to the device. All Unregistered Multicast
frames are still forwarded to all ports on the VLAN. After a port has been set to Forwarding/Filtering, then this
port's configuration is valid for any VLAN it is a member of (or will be a member of).
To define unregistered Multicast settings:
1. Click Multicast > Unregistered Multicast. The Unregistered Multicast Page opens:
Figure 107:Unregistered Multicast Page
The Unregistered Multicast Page contains the following fields:
Select the interfaces displayed in the table.
• Ports of Unit — Indicates the stacking member ports for which the unregistered Multicast parameters are
displayed.
• Trunk — Specifies the trunk for which the Unregistered Multicast settings are displayed.
The Unregistered Multicast table displays the following information for ports:
• Interface — Displays the interface ID.
• Unregistered Multicast — Indicates the forwarding status of the selected interface. The possible values are:
– Forwarding — Enables forwarding of Unregistered Multicast frames to the selected VLAN interface. This
is the default setting.
– Filtering — Enables filtering of Unregistered Multicast frames to the selected VLAN interface.