Installation manual

3-255
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Configuring IGMP Filtering and Throttling for Interfaces
Once you have configured IGMP profiles, you can assign them to interfaces on the
switch. Also you can set the IGMP throttling number to limit the number of multicast
groups an interface can join at the same time.
Command Usage
• Only one profile can be assigned to an interface.
• An IGMP profile or throttling setting can also be applied to a trunk interface. When ports
are configured as trunk members, the trunk uses the settings applied to the first port
member in the trunk.
• IGMP 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
IGMP 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.
Command Attributes
• Profile – Selects an existing profile number to assign to an interface.
• Max Multicast Groups – Sets the maximum number of multicast groups an interface
can join at the same time. (Range: 0-256; Default: 256)
• Current Multicast Groups – Displays the current multicast groups the interface has
joined.
• Throttling Action Mode – Sets the action to take when the maximum number of
multicast groups for the interface has been exceeded. (Default: Deny)
- deny - The new multicast group join report is dropped.
- replace - The new multicast group replaces an existing group.
• Throttling Status – Indicates if the throttling action has been implemented on the
interface. (Options: True or False)
• Trunk – Indicates if a port is a trunk member.