Registered in England & Wales, Company No. 5606386
Unit 1, Cambridge House, Camboro Business Park, Oakington Road, Girton, Cambridge, CB3 0QH, United Kingdom
Complex Systems Research Limited was founded in 2005 as a vehicle for the commercialisation of the founder's patented technology in computer-communication network switches, routers, protocols and algorithms.
This commercialisation is being actively pursued via licensing or sale of the technology.
The technology specifically centres around control of congestion, in a distributed, de-centralised, fair and scalable way, using the Distributed Scheduling Mechanism (DSM). It has wide applications in access networks, the middle-mile, customer-premise networks, and within and between private networks (data centres).
DSM is implemented in switches/routers, and does not involve any cross-network signalling. No per-flow or per-user state information is maintained in switches, so DSM can be said to be consistent with the end-to-end principle. Control is exercised locally based on local conditions, with no packet discard (in fact no buffer overflows in any of the DSM-capable switches), and no packet inspection, although priority queuing of uncontrolled traffic is supported. As part of the protocol, neighbouring capable switches employ link-level flow control between themselves; the result is that across the wider network DSM gives a kind of per-flow fairness – this fairness has characteristics that make it preferable to traditional max-min fairness.
The distributed, dynamic, robust, lossless nature of DSM provides many advantages over pure end-to-end congestion control methods.
Some of the relevant patents were the result of inventions made when the founder was a University employee. The Company has since acquired these patents, so that all intellectual property is owned in its entirety by the Company.