Roke Manor Research Limited

Michael John Excell

Andrew Timothy Hayter

Ian Lesseter Phillips

Christopher Paul Urry

A broadband telecommunications switch ( ), for switching packets of data received on a plurality of input ports ( ) to plurality of bandwidth limited output ports ( ), comprising for each input port ( ) a control processor ( ) which operates to send request data for each of a plurality of switching periods to each output port ( ), which request data is representative of a requirement for communications bandwidth from said output ports ( ) sufficient to accommodate packets of data received at said input ports ( ) for switching to said output ports ( ) for the switching period. Each of said bandwidth allocators ( ) responds to said request data by generating bandwidth allocation data appertaining to an allocation of a share of the bandwidth of the output port ( ) to the input port ( ), which share of bandwidth said input port ( ) uses to switch data from said input ports to said output ports during said switching period.

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Hampshire, United Kingdom

Michael John Excell