Method and system for achieving cell diagnosis of continuity in cell exchange
AssigneeFujitsu Limited
InventorsKazuei Onishi, Masatoshi Takita
Life of this patent
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Abstract
In a cell exchange, cell diagnosis of continuity with respect to an individual part operating in a band width for a speed faster than a cell feeding speed is enabled by using cell test equipment with a low cell feeding speed. The method of cell diagnosis of continuity for this purpose comprises a step of setting a plurality of paths between a diagnosed unit to which the cell diagnosis of continuity is applied and the cell test equipment; a step of almost substantially concentrating cells sent from the cell test equipment through a plurality of paths at the diagnosed unit; and a step of returning cells concentrated at the diagnosed unit to the cell test equipment via one of a plurality of paths.
Claims17
A method of cell diagnosis of continuity for one specified unit among various units constituting a cell exchange by cell test equipment, comprising:
- a step of setting a plurality of paths between a diagnosed unit and said cell test equipment in said cell exchange;
- a step of concentrating cells sent from at least one of said cell test equipment through said plurality of paths simultaneously at said diagnosed unit by multiplexing said cells sent through said plurality of paths;
- and
- a step of returning said cells concentrated at said diagnosed unit via one of said plurality of paths to said cell test equipment.
A system for cell diagnosis of continuity comprising:
- a plurality of units of cell test equipment for sending cells for executing cell diagnosis of continuity with respect to one specified unit among the various units constituting the cell exchange;
- a plurality of path setting means provided corresponding to the units of the cell test equipment for forming, in said cell exchange, paths leading cells sent from said units of cell test equipment to diagnosed unit;
- and
- a return loop forming means provided in the diagnosed unit for returning said cells led to said paths and concentrated to said diagnosed unit toward said units of cell test equipment via the path in said cell exchange.
A system for cell diagnosis of continuity comprising:
- a single unit of cell test equipment for sending cells for executing the cell diagnosis of continuity with respect to one specified unit among various units constituting the cell exchange;
- a path setting means provided for forming, in said cell exchange, a path leading cells sent from said single unit of cell test equipment to said diagnosed unit;
- a return loop forming means provided in the diagnosed unit for returning said cells from said path at said diagnosed unit;
- and
- a spiral loop forming means for setting, in said cell exchange, a path for repeatedly returning said cells returned at said return loop forming means to said diagnosed unit so as to form a spiral loop.
A recording medium storing a program for enabling a computer to execute cell diagnosis of continuity with respect to one specified unit among the various units constituting a cell exchange via cell test equipment, said program comprising
- setting a plurality of paths between said diagnosed unit and said cell test equipment in said cell exchange;
- making the cells sent from at least one said cell test equipment through said plurality of paths almost simultaneously concentrate at said diagnosed unit;
- and
- returning said cells concentrated at said diagnosed unit to said cell test equipment via one of said plurality of paths.
Dependencies are inferred from the claim text.