Services Offered

Advice on Internet standards

I have 4 years experience of working in the IETF, both as an author and as a contributor. I am a major contributor to work in the Transport Area. My particular expertise is in congestion exposure (ConEx) and pre-congestion notification (PCN). I am the author of a draft Internet Standard (RFC5696) on PCN encoding and 3 working group Intenret Drafts. I am also a co-author of several individual Internet Drafts. Full details of my publications can be found here.

I have contributed to a number of working groups including MPTCP, TSVWG, TCPM, PCN and ConEx.

Market analysis and report writing

I have wriiten several market analyses and whitepapers exploring the current and future trends for various network based services and systems. Most recently I wrote a report on the current state of IPTV for Point Topic, a leading broadband market Intelligence company.

Traffic Analysis

I have significant experience of analysing network packet traces to spot key trends and to test whether protocols are behaving as predicted.

Network simulation and modelling

I have extesnive experience with the ns2 and Opnet Modeller network simulators. I have simualted new protocols as well as extensions to existing protocols. I also have some limited experience of flow-based simulations (including the use of Matlab and Mathematica). I always try to create mathematical models to verify my simulation results and view simulation with a certain healthy scepticism (like statistics, you can make simulations show anything).

Advice on testbed design

I have designed and set up large-scale network testbeds including high speed packet capture devices such as the Endace Probe and traffic generators such as the Agilent N2X. I have also used software based packet capture and tracing software such as WinPcap and Wire Shark.