OID value: 1.3.6.1.2.1.2.2.1.5
OID description:
ifSpeed OBJECT-TYPE SYNTAX Gauge ACCESS read-only STATUS mandatory DESCRIPTION "An estimate of the interface's current bandwidth in bits per second. For interfaces which do not vary in bandwidth or for those where no accurate estimation can be made, this object should contain the nominal bandwidth." ::= { ifEntry 5 }
See also the OID Repository website reference for 1.3.6.1.2.1.2.2.1.5