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Path changing system and method for use in ATM communication apparatus

  • US 5,600,630 A
  • Filed: 08/25/1994
  • Issued: 02/04/1997
  • Est. Priority Date: 08/31/1993
  • Status: Expired due to Fees
First Claim
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1. A communication apparatus wherein connecting information included in cells inputted from a plurality of digital lines are rewritten and internal routing information are added to the cells according to the connecting information to allow said cells to be output into the system, whereby the cells are multiplexed and switched to a plurality of predetermined output digital lines by converting at least one of an output connection and an output line, comprising:

  • a plurality of routing information storing apparatuses each for storing information of an output connection, an output line or both corresponding to one piece of input connecting information;

    an equipment information registering apparatus for storing information indicative of states such as a failure, of said output line, an output communication apparatus, a communication apparatus of interest or communication equipment comprised of a combination thereof; and

    a selecting apparatus for selecting any one of said plurality of routing information storing apparatus based on correspondence between the contents of said equipment information registering apparatus and said plurality of routing information storing apparatus,whereby in the event of a failure occurring in said output line, the output communication apparatus, the communication apparatus of interest or a combination thereof, an output line, an output connection or an output apparatus is selected in self-control fashion from said plurality of routing information storing apparatuses in accordance with the failure.

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