Hi Ilya, what OID are you polling? As far as I know, ifOperStatus=1.3.6.1.2.1.2.2.1.8 could be polled as it returns the following values:
ifOperStatus OBJECT-TYPE
SYNTAX Integer {
up(1),
down(2),
testing(3),
unknown(4),
dormant(5),
notPresent(6),
lowerLayerDown(7) }
This particular OID is available in NetSight, however, if it turns out there is another Cisco specific OID, you might have to import the MIB it belongs to into NetSight. As long as there's a MIB, anything is possible with NetSight