OID value: 1.3.6.1.2.1.2.2.1.8
OID description:
ifOperStatus OBJECT-TYPE SYNTAX INTEGER { up(1), down(2), testing(3) } ACCESS read-only STATUS mandatory DESCRIPTION "The current operational state of the interface. The testing(3) state indicates that no operational packets can be passed." ::= { ifEntry 8 }
See also the OID Repository website reference for 1.3.6.1.2.1.2.2.1.8