NetCalliper Project

What is NetCalliper?

The NetCalliper project at the University of Maryland, College Park is a new approach to studying network dynamics, treating the Internet as a primary example. The goal of this project is to understand the dynamic characteristics of a network, and to look at how current practices, as well as new techniques, are applicable to the design and operation of computer networks. Project NetCalliper is a framework within which we are integrating several research activities at the Computer Science Department, some of which were started several years ago.

The design improvements require the knowledge of both static and dynamic characteristics of the component technologies, along with ways of integrating them so that they can inter-operate effectively. Our approach to improving the understanding of network dynamics is to measure the network characteristics using a low-overhead probing tool called NetDyn, which is designed to acquire short-term, fine grained, as well as long-term behaviors. The knowledge of the dynamics is then taken into accounts in constructing deterministic and stochastic models reflecting the realistic characteristics of the network.





Recent Developments

    End host clock adjustment
    UDP/IP Stack Processing Overheads


The research activities in this project have been sponsored by several agencies including DARPA and the National Library of Medicine.

Technical inquiries to: Dr. Ashok Agrawala
Web inquiries to: Bao Trinh