Unregistered Multicast
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 open the Unregistered Multicast page, click Switch→ Multicast Support→ Unregistered Multicast in the tree view.
Figure 7-76. Unregistered Multicast
•Interface — Selects a port or LAG.
•Status — Indicates the forwarding status of the selected interface. The possible values are:
–Forwarding — Enables forwarding of unregistered Multicast frames on the selected port or
–Filtering — Enables filtering of unregistered Multicast frames on the selected VLAN interface.
Configuring Switch Information
401
