Matching packet counts on the line between two interfaces

Matching packet counts on the line between two interfaces

Folks,
I am monitoring a both interfaces on a T3, and one thing I noticed was that data transfers/packet counts for a given flow do not match.
What I mean is the following: NFA reports 1Gb/1000000 packets out sent on a T3 interface, but reports only 700M/700000 packets in on the incoming interface on the other end of the T3. It cannot be a 30% loss over T3, as my app reports receiving 1Gb of data as it supposed to. It is a TCP app, so I know it got 1Gb worth of data.
Any suggestions? Could it be a router/netflow related configuration issue?
Thanks, P.Z.



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