Configuring the IGMP Limit Function

To limit IPTV ICPs and the number of user accesses on IP core networks, you can configure the IGMP limit function. Configuring the IGMP limit function involves setting the maximum number of global IGMP group memberships, maximum number of global IGMP group memberships in a single instance, and maximum number of IGMP group memberships on an interface.

Configuring the Maximum Number of Global IGMP Group Memberships: This section describes how to configure the maximum number of IGMP entries that can be created on the multicast device connected to the user network segment. When the number of IGMP entries reaches the limit, the system does not create any IGMP entry. If the host wants to join a new multicast group, you need to delete certain useless entries, modify the limit, or configure the host to statically join a multicast group or source/group.

Configuring the Maximum Number of Global IGMP Entries in a Single Instance: This section describes how to configure the maximum number of IGMP entries that can be created in a single instance on the multicast device connected to the user network segment. When the number of IGMP entries reaches the limit, the system does not create any new IGMP entry. If the host wants to join a new multicast group, you need to delete certain useless entries, modify the limit, or configure the host to statically join a multicast group or source/group.

Configuring the Maximum Number of IGMP Group Memberships on an Interface: This section describes how to configure the maximum number of IGMP entries that can be created on the interface of the multicast device connected to the user network segment. When the number of IGMP entries reaches the limit, the system does not create any new IGMP entry. If the host wants to join a new multicast group, you need to delete certain useless entries, modify the limit, or configure the host to statically join a multicast group or source/group.