Newbridge Networks Corporation

Steve Bews

Charles Mitchell

Henry Chow

Michael Gassewitz

Germain Bisson

Jim Ghadbane

A communication system is provided for transmitting and receiving data cells containing control messaging and customer data, including a real-time development system (RDS) and means for generating a plurality of RDS events and RDS commands at predetermined locations within the communication system. Each of the RDS events having an event identifier and a variable length sequence of data bytes for defining the event. Each of the RDS commands having a command identifier and a variable length identifier for defining the command. The communication system also includes means for transmitting the RDS events and RDS commands as data cells throughout the communication system via identical communication links. The communication system also having means located throughout the communication system for selectively filtering the RDS events and RDS commands from the control messaging data and customer data. The communication system further includes means located throughout the communication system for displaying the RDS events which have been filtered for real-time diagnostics as well as means for supporting source and assembly level debug operations using the RDS commands and RDS events.

Communications system for receiving and transmitting data cells

A communication system is disclosed having a hub slot adapted to receive any one of a plurality of hub cards for receiving and transmitting data cells; a plurality of universal card slots; a plurality of interface cards insertable into any one of said plurality of universal card slots for receiving incoming ones of said data cells containing data and transmitting outgoing ones of said data cells containing data; an add bus having respective data links connected between individual ones of said universal card slots and said hub slot for receiving said outgoing ones of said data cells from said plurality of interface cards and transmitting said outgoing ones of said data cells to said hub slot; a drop bus having a single data link connected between all of said universal card slots and said hub slot for transmitting said incoming ones of said data cells from said hub slot to said plurality of interface cards; and means within each of said interface cards for filtering said incoming ones of said data cells from said drop bus and thereby routing said data cells to an appropriate one or more of said plurality of interface cards.

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Stittsville, Canada

Steve Bews