Configure PIM Protocol

You can enable or disable PIM on a specific interface.

You can also configure the Designated Router (DR) priority. The DR is responsible for sending PIM register, join, and prune messages to the RP. When there is more than one multicast router on a network segment, choosing the DR is based on the DR priority. If multiple devices have the same DR priority, then the device with the highest IP address becomes the DR. By default, the threat defense device has a DR priority of 1.

Router query messages are used to choose the PIM DR. The PIM DR is responsible for sending router query messages. By default, router query messages are sent every 30 seconds. Additionally, every 60 seconds, the threat defense device sends PIM join or prune messages.

Procedure

Step 1

Choose Devices > Device Management, and edit the threat defense device.

Step 2

Choose Routing > Multicast Routing > PIM.

Step 3

On Protocol, click Add or Edit.

Use the Add PIM parameters dialog box to add new PIM parameters to the interface. Use the Edit PIM parameters dialog box to change existing parameters.

Step 4

Configure the following options:

  • Interface—From the drop-down list, select the interface for which you want to configure PIM protocol.

  • Enable PIM—Check the check box to enable PIM.

  • DR Priority—The value for the DR for the selected interface. The router with the highest DR priority on the subnet becomes the designated router. Valid values range from 0 to 4294967294. The default DR priority is 1. Setting this value to 0 makes the threat defense device interface ineligible to become the designated router.

  • Hello Interval—The interval in seconds at which the interface sends PIM hello messages. The range is 1 to 3600. The default is 30.

  • Join Prune Interval—The interval in seconds at which the interface sends PIM join and prune advertisements. The range is 10 to 600. The default is 60.

Step 5

Click OK to save the PIM protocol configuration.