Future Work
In this section, we describe some possible future improvements to the
nettimer implementation. One improvement would be to
determine what the optimal weighting of components in the filtering
algorithm (Section 2.2.3) is.
Another improvement would be to allow runtime choice of flow
definition (Section 3.1), so that we could
measure bandwidth behind NAT gateways. Another improvement would be to
allow distributed packet capture servers to randomly sample traffic to
reduce the amount of bandwidth that packet reports consume. Finally,
we could add an active probing component like [Sav99] which
can cause large packets to flow in both directions from hosts without
special measurement software and can cause prompt acknowledgements to
flow back to the sender. The pathrate [DRM01]
tool shows that active packet pair can be very accurate.
Kevin Lai
2001-01-29