Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Patent
1995-10-25
1997-09-16
Hsu, Alpus H.
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
370244, 370395, H04L 1256
Patent
active
056687982
ABSTRACT:
A data switching device, such as an ATM or Asynchronous Transfer Mode switch, includes a switching fabric with multiple input and output leads. The device also includes at least one input adapter for receiving data cells on each of a number of input ports and at least one output adapter for delivering data cells switched through the switching fabric to a target port in a set of output ports. Error and format checks are performed on incoming cells and counts are kept of the number of good cells and invalid cells received on a particular input port. To reduce hardware costs, the counts are kept in a random access memory which is shared among the input ports. Several storage locations are allocated to each input port to maintain the necessary counts.
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European Search Report.
Calvignac Jean
Frenoy Jean-Luc
Orsatti Daniel
Torres Luc
Toubol Gilles
Hsu Alpus H.
International Business Machines - Corporation
Woods Gerald R.
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