Displaying basic PIM Sparse configuration information

To display PIM Sparse configuration information, enter the following command at any CLI level.

Device(config)# show ip pim sparse  
              
Global PIM Sparse Mode Settings
  Maximum Mcache         : 12992     Current Count              : 2
  Hello interval         : 30        Neighbor timeout           : 105
  Join/Prune interval    : 60        Inactivity interval        : 180
  Hardware Drop Enabled  : Yes       Prune Wait Interval        : 3
  Bootstrap Msg interval : 60        Candidate-RP Msg interval  : 60
  Register Suppress Time : 60        Register Probe Time        : 10
  Register Stop Delay    : 10        Register Suppress interval : 60
  SSM Enabled            : Yes       SPT Threshold              : 1         
 SSM Group Range        : 232.0.0.0/8  
 Route Precedence       : mc-non-default mc-default uc-non-default uc-default

Syntax: show ip pim [vrf vrf-name ] sparse

The vrf keyword allows you to display PIM sparse configuration information for the VRF instance identified by the vrf-name variable.

This example shows the PIM Sparse configuration information on PIM Sparse device A in Figure 5.

The following table shows the information displayed by the show ip pim sparse command.

Table 5 Output of the **show ip pim sparse** command
This field...	Displays...
Global PIM Sparse mode settings
Maximum mcache	Maximum number of multicast cache entries.
Current Count	Number of multicast cache entries used.
Hello interval	How frequently the device sends IPIM Sparse hello messages to its PIM Sparse neighbors. This field shows the number of seconds between hello messages. PIM Sparse routers use hello messages to discover one another.
Neighbor timeout	Number of seconds the device waits for a hello message from a neighbor before determining that the neighbor is no longer present and is not removing cached PIM Sparse forwarding entries for the neighbor. Default is 105 seconds.
Join or Prune interval	How frequently the device sends IPv6 PIM Sparse Join or Prune messages for the multicast groups it is forwarding. This field shows the number of seconds between Join or Prune messages. The device sends Join or Prune messages on behalf of multicast receivers that want to join or leave an PIM Sparse group. When forwarding packets from PIM Sparse sources, the device sends the packets only on the interfaces on which it has received join requests in Join or Prune messages for the source group.
Inactivity interval	Number of seconds a forwarding entry can remain unused before the router deletes it. Default is 180 sec.
Hardware Drop Enabled	Indicates whether hardware drop is enabled or disabled. To prevent unwanted multicast traffic from being sent to the CPU, PIM Routing and Passive Multicast Route Insertion (PMRI) can be used together to ensure that multicast streams are only forwarded out ports with interested receivers and unwanted traffic is dropped in the hardware on Layer 3 Switches.
Prune Wait Interval	Number of seconds a PIM device waits before stopping traffic to neighbor devices that do not want the traffic. Range is from zero to three seconds. Default is three seconds.
Bootstrap Msg interval	How frequently the BSR configured on the device sends the RP set to the RPs within the PIM Sparse domain. The RP set is a list of candidate RPs and their group prefixes. The group prefix of a candidate RP indicates the range of PIM Sparse group numbers for which it can be an RP. NOTE This field contains a value only if an interface on the device is elected to be the BSR. Otherwise, the field is blank.
Candidate-RP Msg interval	Number of seconds the candidate RP configured on the Layer 3 switch sends candidate RP advertisement messages to the BSR. Default is 60 seconds.
Register Suppress Time	This is the mean interval between receiving a Register-Stop and allowing registers to be sent again. A lower value means more frequent register bursts at RP, while a higher value means longer join latency for new receivers. Default: 60 seconds.
Register Probe Time	Number of seconds the PIM router waits for a register-stop from an RP before it generates another NULL register to the PIM RP. Default is 10 seconds.
Register Stop Delay	Register stop message. Default is 10 seconds.
Register Suppress interval	Number of seconds that it takes the designated router to send a Register-encapsulated date to the RP after receiving a Register-Stop message. Default is 60 seconds.
SSM Enabled	If yes, Source-Specific Multicast is configured globally on this router.
SPT threshold	Number of packets the device sends using the path through the RP before switching to the SPT path. Default is 1 packet.
SSM Group Range	Source-Specific Multicast group range.
Route Precedence	The route precedence configured to control the selection of routes based on the four route types: Non-default route from the mRTM Default route from the mRTM Non-default route from the uRTM Default route from the uRTM

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Displaying basic PIM Sparse configuration information