Enabling/Disabling multicast traffic to SPT

Switching to SPT is enabled by default.

You must be in the PIM configuration context, as indicated by the switch(config-pim)# prompt.
Enable or disable the router's ability to switch multicast traffic flows to the Shortest Path Tree (SPT) using the following command.


For example, the following command enables switching traffic flows to the SPT:
switch(config)# router pim
switch(config-pim)# spt-threshold

The no form of the command disables switching to SPT.