On the 95 percentile billing method

Xenofontas Dimitropoulos, Paul Hurley, Andreas Kind and Marc Ph. Stoecklin
Passive and Active Measurement Conference

This paper describes the commonly used 95-percentile billing method which is often used by ISPs to bill other ISPs. The 95-percentile billing method is as follows:

  • Set a billing rate $y per Mbps (Megabit per second).

  • Take a month of traffic counts for the entity you wish to bill.

  • Split the traffic into equal sized time periods of length T (often 5 minutes).

  • Calculate the mean rate in Mbps for each time period.

On the relationship between fundamental measurements in TCP flows

Cosener's house Next Generation Networks meeting

Talk to Next Generation Networks meeting -- this talk is partly based on the ICC paper (fundamental relationships in TCP flows) and shows how TCP throughput arises from network parameters and engineering decisions.

The Large-Scale Geography of Internet Round Trip Times

Conference paper
Presented at IFIP/Networking

This paper describes the collection and analysis of a very large collection of delay data. The data is collected using the Turbo King method (recursive queries of Domain Name Servers). A model is given to fit the data. The data is analysed by continent.

It is shown that there is a strong relationship between delay and Haversine distance (the distance across the surface of the earth). However, this relationship breaks down in specific cases and occasionally, for some continent pairs, the opposite relationship is shown (longer distance is shorter delay).

On the relationship between fundamental measurements in TCP flows

Conference paper
Proceedings of the International Conference on Communications, pp. 2502-2506

This paper tries to establish the relationship between TCP throughput and fundamental qualities like round trip time, flow size and loss. The approach is data driven considering large numbers of publicly available data sources.


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