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| Sun Ethernet Fabric Operating System ### PIM Administration Guide

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## Specify the PIM Threshold That Triggers SPT Switching

You can specify the number of packets (in bps) that must be transmitted from the group or source to cause data to be transmitted through the SPT. The SPT threshold must be configured to switch to SPT.

1. Configure the group and source threshold values.

       SEFOS# configure terminal
       SEFOS(config)# set ip pim enable
       SEFOS(config)# set ip pim threshold spt-grp 10
       SEFOS(config)# set ip pim threshold spt-src 15
       SEFOS(config)# end

   This example transmits data through the SPT when the data transfer rate for the group exceeds 10 bps. Data is transmitted through the SPT when the data transfer rate for the source exceeds 15 bps.

2. Ensure that the correct data transfer rate has been set.

       SEFOS# show ip pim thresholds
       PIM SPT Threshold Information
       -----------------------------
         Group Threshold  : 10
         Source Threshold : 15
         Switching Period : 0

       PIM SPT-RP Threshold Information
       --------------------------------
         Register Threshold       : 0
         RP Switching Period      : 0
         Register Stop rate limit : 5

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