# Configuring global PIM-SM or PIM-SSM status and properties

Use the following procedure to configure PIM-SM or PIM-SSM status and properties globally.

## Prerequisites

- You must enable PIM-SM globally.

## Procedure steps

1. From the navigation tree, double-click IP.

2. In the IP tree, click PIM.

3. Select the Globals tab.

4. In the Globals tab, in the Mode box, select sm for PIM-SM or ssm for PIM-SSM.

5. Select the Enable check box to enable PIM-SM/SSM.

6. Configure the other parameters as required.

7. In the toolbar, click Apply.

## Variable definitions

Field | Description
--- | ---
Mode | Displays the PIM mode on the switch: sparse mode or source specific multicast mode.
Enable | Enables or disables PIM globally.
JoinPruneInterval | Specifies how long (in seconds) the PIM router waits between sending join/prune messages to its upstream neighbors. The range is 1 to 18724, and the default is 60 seconds.
RegisterSuppTimer | Specifies how long (in seconds) the DR suppresses sending register messages to the RP after the DR receives a register-stop message from the RP. The range is 5 to 65535, and the default is 60 seconds.
UniRouteChgTimeOut | Specifies how often (in seconds) the switch polls the routing table manager (RTM) for unicast routing information updates to be used by PIM. The range is 2 to 65535, and the default is 5 seconds.
| Important
| Lowering this value increases how often the switch polls the RTM. This can affect the performance of the switch, especially when a high volume of traffic is flowing through the switch.
DiscardDataTimeOut | After the router forwards the first source packet to the RP, this value specifies how long (in seconds) the router discards subsequent source data while waiting for a join from the RP. An IPMC discard record is created and deleted after the timer expires or after a join is received. The range is 5 to 65535, and the default is 60 seconds.
CRPADVTimeOut | Specifies how often (in seconds) routers that are configured as candidate RPs send candidate rendezvous point (C-RP) advertisement messages. After this timer expires, the C-RP sends an advertisement message to the elected BSR. The range is 5 to 26214, and the default is 60 seconds.
BootStrapPeriod | Specifies the interval (in seconds) that the elected BSR waits between originating bootstrap messages. The range is 5 to 32757, and the default is 60 seconds.
StaticRP | Enables or disables the static RP feature. Static RP permits communication with routers from other vendors that do not use the BSR mechanism. By default, static RP is disabled.
FwdCacheTimeOut | Specifies the PIM forward cache expiry value in seconds. Use this value in aging PIM mroutes in seconds. The range is 10 to 86400, and the default is 210.