Adjusting Control Parameters for Forwarding

A multicast device sends Join messages upstream to require to forward multicast data and Prune messages upstream for requiring to stop forwarding multicast data. You can adjust control parameters for multicast data forwarding as required. If there is no special requirement, adopt default values.

Configuring Control Parameters for Keeping the Forwarding State: The control parameters of multicast data forwarding can be set either globally or on an interface. The parameters specify the interval for sending Join/Prune messages and the period for a downstream interface to keep the Join/Prune state.

Configuring Control Parameters for Prune: The control parameters for prune can be set either globally or on an interface. The parameters specify the delay for transmitting messages in a LAN and the interval for overriding the Prune action.

Configuring Join Information Filtering: A Join/Prune message received by an interface may contain both join information and prune information. You can configure the interface to filter join information based on ACL rules. The device then creates PIM entries for only the join information matching ACL rules.

Configuring Neighbor Check: If PIM neighbor check is enabled, a device checks whether the Join/Prune and Assert messages are sent to or received from PIM neighbors. If not, the device drops the messages.

(Optional) Configuring Parameters for Join/Prune Messages: The parameters such as the maximum message size and number of (S, G) entries, and the message package function can be configured for PIM Join/Prune messages.