Multicast Snooping

This section provides configuration tasks for Multicast Snooping.

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Enable Multicast - This check box is disabled by default. Select this check box to support multicast traffic.

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Require IGMP Membership reports for multicast data forwarding - This check box is enabled by default. Select this check box to improve performance by regulating multicast data to be forwarded to only interfaces joined into a multicast group address using IGMP.

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Multicast state table entry timeout (minutes) - This field has a default of 5. The value range for this field is 1 to 60 (minutes). Update the default timer value of 5 in the following conditions:

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You suspect membership queries or reports are being lost on the network.

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You want to reduce the IGMP traffic on the network and currently have a large number of multicast groups or clients. This is a condition where you do not have a router to route traffic.

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You want to synchronize the timing with an IGMP router.