Enable IPv6 PIM-SM Globally

Enable IPv6 PIM-SM to offer multicasting services. After you enable IPv6 PIM-SM globally and on a particular interface, the MLD parameters take effect.

Before you begin

Note

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

PIM-SM
PIM-SSM
Simplified vIST

Procedure

In the navigation pane, expand Configuration > IPv6.
Select IPv6 PIM.
Select the Globals tab.
Select Enable.
Select sm (sparse mode).
Select Apply.

Globals Field Descriptions

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


Name	Description
Enable	Enables or disables PIM.
Mode	Configures the mode on the routing switch: sm (Sparse Mode) or ssm (Source Specific Multicast).
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 10–65535 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.
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.
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.
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). To change this value, you must first disable: PIM-SM PIM-SSM Simplified vIST The default value is disabled, which means that multicast traffic is automatically switched over to SPT.