BigIron RX Series Configuration Guide 60953-1001986-01Displaying PIM Sparse configuration information and statistics 23Displaying a list of multicast groupsTo display PIM Sparse configuration information, enter the following command at any CLI level.Syntax: show ip pim groupThis display shows the following information.Join/Prune interval How frequently the BigIron RX sends PIM Sparse Join/Prune messagesfor the multicast groups it is forwarding. This field show the number ofseconds between Join/Prune messages.The BigIron RX sends Join/Prune messages on behalf of multicastreceivers who want to join or leave a PIM Sparse group. When forwardingpackets from PIM Sparse sources, the BigIron RX sends the packets onlyon the interfaces on which it has received join requests in Join/Prunemessages for the source’s group.You can change the Join/Prune interval if needed. Refer to “Changingthe PIM join and prune message interval” on page 607.SPT Threshold The number of packets the BigIron RX sends using the path through theRP before switching to using the SPT path.PIM Sparse interface informationNOTE: You also can display IP multicast interface information using the show ip pim interface command. However,this command lists all IP multicast interfaces, including regular PIM (dense mode) and DVMRP interfaces.The show ip pim sparse command lists only the PIM Sparse interfaces.Interface The type of interface and the interface number. The interface type canbe one of the following:• Ethernet• VEThe number is either a port number (and slot number if applicable) orthe virtual interface (VE) number.TTL Threshold Following the TTL threshold value, the interface state is listed. Theinterface state can be one of the following:• Disabled• EnabledLocal Address Indicates the IP address configured on the port or virtual interface.This field... Displays...Total number of Groups Lists the total number of IP multicast groups the BigIron RX isforwarding.NOTE: This list can include groups that are not PIM Sparse groups. Ifinterfaces on the BigIron RX are configured for regular PIM(dense mode) or DVMRP, these groups are listed too.Index The index number of the table entry in the display.This field... Displays...BigIron RX(config-pim-router)# show ip pim groupTotal number of Groups: 2Index 1 Group 239.255.162.1 Ports e3/11