HP 6125XLG R2306-HP 6125XLG Blade Switch IP Multicast Configuration Guide - Page 85
Configuring common PIM features, Configuration task list, Configuration prerequisites
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Configuring common PIM features Configuration task list Task at a glance (Optional.) Configuring a multicast data filter (Optional.) Configuring a hello message filter (Optional.) Configuring PIM hello message options (Optional.) Configuring common PIM timers (Optional.) Setting the maximum size of each join or prune message (Optional.) Enabling PIM to work with BFD Configuration prerequisites Before you configure common PIM features, complete the following tasks: • Configure any unicast routing protocol so that all devices in the domain are interoperable at the network layer. • Configure PIM-DM, or PIM-SM. Configuring a multicast data filter In either a PIM-DM domain or a PIM-SM domain, routers can check passing-by multicast data and determine whether to continue forwarding the multicast data based on the configured filtering rules. You can configure a PIM router as a multicast data filter to help implement traffic control and control the information available to downstream receivers. A filter can filter not only independent multicast data but also multicast data encapsulated in register messages. Generally, a filter nearer to the multicast source has a better filtering effect. To configure a multicast data filter: Step 1. Enter system view. 2. Enter PIM view. 3. Configure a multicast data filter: Command system-view pim source-policy acl-number Remarks N/A N/A By default, no multicast data filter is configured. Configuring a hello message filter Along with the wide applications of PIM, the security requirement for the protocol is becoming increasingly demanding. The establishment of correct PIM neighboring relationships is the prerequisite for secure application of PIM. 78