Igmp Count Limit; Multicast Igmpcount Commands; Multicast Igmpcount Disable Command; Multicast Igmpcount Enable Command - ZyXEL Communications MSC1024G Series User Manual

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Chapter 30 multicast Commands

30.7 IGMP Count Limit

With the IGMP count feature, you can limit the number of IGMP groups a subscriber on a port

can join. This allows you to control the distribution of multicast services (such as content

information distribution) based on service plans and types of subscription.

IGMP count is useful for ensuring the service quality of high bandwidth services like video or

Internet Protocol television (IPTV). IGMP count can limit how many channels (IGMP groups)

the subscriber connected to a DSL port can use at a time. If each channel requires 4~5 Mbps of

download bandwidth, and the subscriber's connection supports 11 Mbps, you can use IGMP

count to limit the subscriber to using just 2 channels at a time. This also effectively limits the

subscriber to using only two IPTVs with the DSL connection.

Use these commands to configure the IGMP count limit settings.

multicast igmpcount disable <slot-port>

This command turns off the IGMP count limit for the specified DSL port(s).

The following command turns off the IGMP count limit for DSL port 4 on the line card in slot

ras> multicast igmpcount disable 3-4

multicast igmpcount enable <slot-port>

This command turns on the IGMP count limit for the specified DSL port(s).

The following command turns on the IGMP count limit for DSL port 4 on the line card in slot

ras> multicast igmpcount enable 3-4

multicast igmpcount set <slot-port> <count>

This command sets the IGMP count limit for the specified DSL port(s).

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