Mld Snooping Port Group Filtering - Planet GS-5220 Series User Manual

Buttons
: Refreshes the displayed table starting from the "VLAN" input fields.
: Updates the table starting from the first entry in the VLAN Table, i.e. the entry with the lowest VLAN
ID.
: Updates the table, starting with the entry after the last entry currently displayed.
Click "Save". The specific MLD VLAN starts working after the corresponding static VLAN is also created.
: Click to apply changes
: Click to undo any changes made locally and revert to previously saved values.

4.8.12 MLD Snooping Port Group Filtering

In certain switch applications, the administrator may want to control the multicast services that are available to
end users. For example, an IP/TV service based on a specific subscription plan. The MLD filtering feature fulfills
this requirement by restricting access to specified multicast services on a switch port, and MLD throttling limits
the number of simultaneous multicast groups a port can join.
MLD filtering enables you to assign a profile to a switch port that specifies multicast groups that are permitted or
denied on the port. A MLD filter profile can contain one or more, or a range of multicast addresses; but only one
profile can be assigned to a port. When enabled, MLD join reports received on the port are checked against the
filter profile. If a requested multicast group is permitted, the MLD join report is forwarded as normal. If a
requested multicast group is denied, the MLD join report is dropped.
MLD throttling sets a maximum number of multicast groups that a port can join at the same time. When the
maximum number of groups is reached on a port, the switch can take one of two actions; either "deny" or
"replace". If the action is set to deny, any new MLD join reports will be dropped. If the action is set to replace,
the switch randomly removes an existing group and replaces it with the new multicast group. The MLD Snooping
:Click to add new MLD VLAN. Specify the VID and configure the new entry.
User's Manual of GS-5220 LCD Series
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