This article provides the MIB OIDs for monitoring PPS (packets per second) rate on an interface. The standard MIB iftable provides only the snapshot of the number of packets, but does not explicitly provide the PPS rate.
Enterprise Specific MIB to get 1sec rate:
SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets per second (pps), delivered by this (sub-)layer to its next higher (sub-)layer." ::= { ifJnxEntry 3 } 1.3.6.1.4.1.2636.3.3.1.1.3
SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets per second (pps), delivered by this (sub-)layer to its next lower (sub-)layer." ::= { ifJnxEntry 6 } 1.3.6.1.4.1.2636.3.3.1.1.6