The number of octets seen from the destination host to the
source host during this sampling interval, counted
using the rules for counting the nlMatrixDSOctets object. (Note
that the corresponding nlMatrixSDOctets object selected is the
one whose source address is equal to nlMatrixTopNDestAddress
and whose destination address is equal to
nlMatrixTopNSourceAddress.)
Note that if the value of nlMatrixTopNControlRateBase is equal
to nlMatrixTopNOctets, the sort of topN entries is based
entirely on nlMatrixTopNOctetRate, and not on the value of
this object.