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Latency verification system within a multi-interface point-to-point switching system (MIPPSS)

  • US 6,580,720 B1
  • Filed: 09/18/1998
  • Issued: 06/17/2003
  • Est. Priority Date: 09/18/1998
  • Status: Expired due to Fees
First Claim
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1. A multi-interface switching system, including:

  • a plurality of I/O ports coupled to a plurality of respective devices;

    a switching fabric that selectively delivers each of a plurality of different signals from a selected one of the I/O ports coupled to a sending one of the devices to another selected one of the I/O ports coupled to a receiving one of the devices, to thereby establish respective connections between the sending and receiving devices, wherein the switching fabric provides a fixed, low latency signal path for each connection, whereby the latency of that connection is deterministic and predictable, and a data content of the signal delivered via that connection is not analyzed by the switching-fabric, whereby the switching fabric operates in a message-independent manner; and

    a controller that determines the latency of all possible signal paths that are presently available for each connection to be established, selects the lowest-latency signal path for each connection that it determines is presently available, and then configures the switching fabric to establish the selected signal path for each connection.

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