Enable IPv4 PIM-SM Globally

Enable PIM-SM to offer multicasting services. After you enable PIM-SM globally and on a particular interface, the IGMP parameters take effect.

Before you begin

Note

Before you can enable the PIM Infinite Threshold Policy feature, you must first disable the following:

PIM-SM
PIM-SSM
Simplified vIST

Procedure

In the navigation pane, expand the following folders: Configuration > IP.
Select PIM.
Select the Globals tab.
Select sm (sparse mode).
Select the Enable check box.
Select Apply.
Configure PIM Infinite Threshold Policy:
1. To disable PIM, clear the Enable check box, and then click Apply.
2. Select enable, and then click Apply
3. To enable PIM, select the Enable check box, and then click Apply.

Globals field descriptions

Use the descriptions in the following table to use the Globals tab.


Name	Description
Mode	Configures the mode on the routing switch: sm (Sparse Mode) or ssm (Source Specific Multicast).
Enable	Enables or disables PIM.
JoinPruneInterval	Specifies how long to wait (in seconds) before the PIM router sends out the next join or prune message to its upstream neighbors. The range is from 1–18724 and the default is 60 seconds.
RegisterSuppTimer	Specifies how long (in seconds) the designated router suppresses sending registers to the rendezvous point (RP). The timer starts after the designated router receives a register-stop message from the RP. The range is from 6–65535 and the default is 60 seconds.
UniRouteChgTimeOut	Specifies how often (in seconds) the switch polls the routing table manager for unicast routing information updates for PIM. The range is from 2–65535 and the default is 5 seconds. Important: If you lower this value, it increases how often the switch polls the routing table manager. This value can affect the performance of the switch, especially if a high volume of traffic flows through the switch.
DiscardDataTimeOut	Specifies how long (in seconds) to discard data until the switch receives a join message from the RP. An IP multicast discard record is created after a register packet is sent, until the timer expires or the switch receives a join message. The range is from 5–65535 and the default is 60 seconds.
CRPADVTimeOut	Specifies how often (in seconds) a router configured as a candidate rendezvous point router (C-RP) sends advertisement messages. After this timer expires, the C-RP router sends an advertisement message to the elected bootstrap router (BSR). The range is from 5–26214 and the default is 60 seconds.
BootStrapPeriod	Specifies the interval (in seconds) that the elected BSR waits between originating bootstrap messages. The range is from 5–32757 and the default is 60 seconds.
StaticRP	Enables or disables the static RP feature. You can use static RP to configure a static entry for an RP. A static RP permits communication with switches from other vendors that do not use the BSR mechanism.
FwdCacheTimeOut	Specifies the PIM forward cache expiry value in seconds. This value ages PIM mroutes in seconds. The range is from 10–86400 and the default value is 210. Topology and hardware conditions can affect the polling interval and cause an inactive route to remain for up to 12-15 minutes.
FastJoinPrune	Enables or disables the PIM fast join prune feature.
SptInfiniteThreshold	Enables or disables PIM Infinite Threshold Policy, so that multicast traffic follows the shared tree path through a Rendezvous Point (RP) instead of automatically switching over to shortest path tree (SPT). The default value is disabled, which means that multicast traffic is automatically switched over to SPT.