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Distributed dynamic routing schemes

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2 Author(s)
Key, P.B. ; British Telecom Res. Lab., Ipswich, UK ; Cope, G.A.

Schemes that do not explicitly use much information about the state of networks are briefly surveyed, with the focus on dynamic alternative routing (DAR), a simple but highly effective routing method currently planned for the British Telecom Network. State-dependent routing and how some of the methodology also has bearing on the control issue are discussed. The problem of dimensioning a network that uses dynamic routing (i.e. how much capacity is needed and where it should be put to provide an acceptable performance) is addressed. A practical example, which refers to routing in an international access network, is discussed. Some conclusions are drawn on the benefits and drawbacks of distributed routing.<>

Published in:

Communications Magazine, IEEE  (Volume:28 ,  Issue: 10 )