57153908_Net_SNMP__Description
[Name] 35 ipSystemStatsHCInMcastPkts [Type] COUNTER64 [Access] ReadOnly [Description] 
The number of IP multicast datagrams received. This object counts the same datagrams as ipSystemStatsInMcastPkts but allows for larger values. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ipSystemStatsDiscontinuityTime.
Net-SNMP
Description