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CITI Technical Report 93-8

The Rx Hex

D. Bachmann
[email protected]

P. Honeyman
[email protected]

L.B. Huston
[email protected]


At CITI, we run dataless AFS clients over dialup IP networks. Improving Rx performance is critical to that task. In this paper, we report on our progress in adapting Rx to networks characterized by low bandwidth, high delay, or variable round-trip time. Our focus is on adding facilities for congestion avoidance and control, and on compressing Rx headers. Although our work is ongoing, we have overcome several hurdles, and are now getting impressive data transfer rates over ordinary dialup lines.

November 2, 1993

Center for Information Technology Integration University of Michigan
519 West William Street
Ann Arbor, MI 48103-4943