This object is the number of octets contained in
valid frames that have been received on this port.
This counter is incremented by OctetCount for each
frame received on this port which has been
determined to be a readable frame (i.e., including
FCS octets but excluding framing bits and dribble
bits).
This statistic provides an indicator of the total
data transferred. The approximate minimum time
for rollover of this counter is 58 minutes.