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Architectures for communication networks

  • US 6,741,572 B1
  • Filed: 12/03/1999
  • Issued: 05/25/2004
  • Est. Priority Date: 09/27/1999
  • Status: Expired due to Fees
First Claim
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1. A communications network, comprising a plurality of interconnected nodes, each of the plurality of said nodes comprising:

  • at least one Agile Bandwidth Usage Device (ABUD);

    a switch connected to the ABUD for configuring transmission channels connected to other nodes; and

    a configuration controller connected to the ABUD and to the switch for controlling configuration of the transmission channels, the configuration controller being operable;

    to receive from the ABUD buffer statistics characterizing the fill of buffers connected to output ports of the ABUD;

    to process the received buffer statistics to determine that a modified allocation of the transmission channels is favoured and to determine a favoured modified allocation of the transmission channels;

    to communicate with configuration controllers at other nodes to determine a paths between nodes for implementation of the favoured modified allocation of the transmission channels; and

    to communicate with the switch, configuration controllers at other nodes and the ABUD to implement the favoured modified allocation of the transmission channels according to the determined path.

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