Web Management Guide

Chapter 13 | Multicast Filtering
Filtering and Throttling IGMP Groups
– 461 –
Configuring IGMP
Filtering and
Throttling for
Interfaces
Use the Multicast > IGMP Snooping > Filter (Configure Interface) page to assign and
IGMP filter profile to interfaces on the switch, or to throttle multicast traffic by
limiting the maximum number of multicast groups an interface can join at the
same time.
Command Usage
◆ 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.
Parameters
These parameters are displayed:
◆ Interface – Port or trunk identifier.
An IGMP profile or throttling setting can be applied to a port or trunk. When
ports are configured as trunk members, the trunk uses the settings applied to
the first port member in the trunk.
◆ Profile ID – Selects an existing profile to assign to an interface.
◆ Max Multicast Groups – Sets the maximum number of multicast groups an
interface can join at the same time. (Range: 1-1024; Default: 1024)
◆ 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)
Web Interface
To configure IGMP filtering or throttling for a port or trunk:
1. Click Multicast, IGMP Snooping, Filter.
2. Select Configure Interface from the Step list.
3. Select a profile to assign to an interface, then set the maximum number of
allowed multicast groups and the throttling response.
4. Click Apply.