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X.25 Wide area network channel status display

  • US 4,887,260 A
  • Filed: 02/17/1987
  • Issued: 12/12/1989
  • Est. Priority Date: 02/17/1987
  • Status: Expired due to Fees
First Claim
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1. A dynamic communication channel status display system for monitoring channel activity on an X.25 wide area network DTE-DCE interface link, said display system showing the status of all possible logical channels at the interface link, said display system to be used with a protocol analyzer or a similar instrument, said display system comprising:

  • a first display means for displaying a dynamic Channel Activity Display, said Channel Activity Display showing an n-by-m matrix arrangement of status characters wherein each status character is represetative of pre-determined logical channel status;

    said Channel Activity Display also having a status key indicating the meaning of each status character;

    cursor display means for displaying a cursor in said Display;

    cursor movement means for enabling a user of said display system to move said cursor to pre-determined positions within said Channel Activity Display;

    logical channel status identification means for identifying the status of at least one logical channel;

    association means for associating a pre-determined status character with a corresponding pre-determined logical channel status;

    logical channel group number (LCGN) numerical identification display means for numerically identifying and/or displaying an LCGN on said Channel Activity Display;

    logical channel identifier (LCI) numerical identification display means for numerically identifying and/or displaying an LCI number on said Channel Activity Display;

    said Channel Activity Display being user-configurable such that said n-by-m matrix shows the status of each logical channel in at least one LCGN of logical channels;

    said Channel Activity Display being further user-configurable to display an LCI number corresponding to the position of said cursor within said Channel Activity Display; and

    a second display means for displaying a dynamic Call Record Display, available as a display option to the viewer of said Channel Activity Display, said display system further comprising;

    organized-listing-call-information means for collecting, organizing and displaying an organized listing of call-information concerning a call on the logical channel corresponding to the position of the cursor in said Channel Activity Display, wherein said call-information includes an indication of at least one of the following;

    said logical channel'"'"'s LCI number;

    a point in time at which said call on said logical channel was initiated;

    duration in time of said call;

    X.25 network addresses of the calling DTE and the called DTE of said call;

    number of X.25 level-3 packets exchanged in said call.

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