When PIMSgEntry reduction is in effect, the Multicast Manager operates as follows:

  • Creates a PIMStartG and PIMSourceG entry for each discovered System-MulticastGroup pair
  • Disables the creation of SG instrumentation objects and the polling of SG entries, meaning that all packet-rate-related alarms for MulticastGroups are disabled.
When PIMSgEntry reduction is not in effect, the Multicast Manager operates as follows:
  • Creates a PIMStartG and PIMSourceG entry for each discovered System-MulticastSource-MulticastGroup (and possibly IfIndex ID) tuple.
  • Enables the creation of SG instrumentation objects and the polling of SG entries, meaning that all packet-rate-related alarms for MulticastGroups are enabled when the AnalysisMode parameter is ENABLED in the (S,G) Polling group.