An apparatus and method for recognizing destination addresses in information packets wherein a recognition that a destination address corresponds to a source address is made based upon a first match decision in which fragments of the destination address are compared with representations of corresponding fragments of source addresses and a second match decision in which fragments of a scrambled version of the destination address are compared with representations of corresponding fragments of similarly scrambled versions of the source addresses.
Communication System Configuration Detection Apparatus And Method
Craig W. Jensen - Aberdeen NJ Frederick R. Keller - Howell NJ Joel I. Morrow - Brooklyn NY Eric A. Roth - Boulder CO
Assignee:
American Telephone and Telegraph Company - New York NY AT&T Information Systems - Morristown NJ
International Classification:
G06F 1300
US Classification:
364200
Abstract:
A data processing system includes a processor unit (CPU) connected over a CPU bus to a plurality of memory components, but is not connected to any input-output (I/O) component of the system. The system I/O component(s) connect to the memories over an I/O bus. A method and apparatus is disclosed for selecting one of the memories to be used for communications between the processor unit and the I/O components. Also, a method for determining which I/O components are in the system.