Centralized diagnostic system for loosely coupled processors
First Claim
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1. A diagnostic system for a data processing system having a plurality of processors and data links interconnecting said processors, the diagnostic system comprising:
- a first intelligent diagnostic console for transmitting diagnostic commands and receiving diagnostic information; and
a network of diagnostic communication links connecting said intelligent console with each one of said plurality of processors and providing at least one communication path between said diagnostic console and each one of said plurality of processors, said diagnostic communication links being independent of said data links;
wherein said network comprises a tree network including a plurality of switching nodes interconnected by said diagnostic communication links; and
wherein each one of said plurality of processors is connected through a corresponding one of said communication links to one of said plurality of switching nodes.
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Abstract
A diagnostic system for a large, multiple processor data processing system. Diagnostic access between dual diagnostic intelligent consoles and each processor is provided through a diagnostic network of communication links and switching nodes which are independent of normal data processing system communication channels. The diagnostic network consists of two embedded three structure communication networks providing two different diagnostic communication paths to each processor within the data processing system.
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Citations
11 Claims
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1. A diagnostic system for a data processing system having a plurality of processors and data links interconnecting said processors, the diagnostic system comprising:
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a first intelligent diagnostic console for transmitting diagnostic commands and receiving diagnostic information; and a network of diagnostic communication links connecting said intelligent console with each one of said plurality of processors and providing at least one communication path between said diagnostic console and each one of said plurality of processors, said diagnostic communication links being independent of said data links; wherein said network comprises a tree network including a plurality of switching nodes interconnected by said diagnostic communication links; and wherein each one of said plurality of processors is connected through a corresponding one of said communication links to one of said plurality of switching nodes. - View Dependent Claims (2, 3)
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4. A diagnostic system for a data processing system having a plurality of processors and data links interconnecting said processors, the diagnostic system comprising:
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a first intelligent diagnostic console for transmitting diagnostic commands and receiving diagnostic information; and a network of diagnostic communication links connecting said intelligent console with each one of said plurality of processors and providing at least one communication path between said diagnostic console and each one of said plurality of processors, said diagnostic communication links being independent of said data links; wherein said network comprises a dual tree network including a plurality of switching nodes interconnected by said diagnostic communication links whereby said first intelligent controller connects with each one of said switching nodes through a first tree structure and said second intelligent controller connects with each one of said switching nodes through a second tree structure; and wherein each one of said plurality of processors is connected through a corresponding one of said communication links to one of said plurality of switching nodes. - View Dependent Claims (5, 6)
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7. A diagnostic system for a data processing system having a plurality of processors and data links interconnecting said processors, the diagnostic system comprising:
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a first intelligent diagnostic console for transmitting diagnostic commands and receiving diagnostic information; and a first-level switching node connected by a dedicated diagnostic communication link to said intelligent console; and a plurality of second-level switching nodes, each one of said second-level switching nodes being connected by a corresponding dedicated diagnostic communication link with said first-level switching node; each one of said switching nodes being connected to a group of said processors by corresponding dedicated diagnostic communication links, each one of said groups of processors being a subset of said plurality of processors; whereby at least one communication path exists between said intelligent diagnostic console and each one of said plurality of processors. - View Dependent Claims (8, 9)
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10. A diagnostic system for a plurality of processors, comprising:
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a first intelligent diagnostic console for transmitting diagnostic commands and receiving diagnostic information; a first tree network connecting said intelligent console with each one of said plurality of processors, comprising; a plurality of switching nodes, each one of said switching nodes being connected to a group of said processors by diagnostic communication links, each one of said groups of processors being a subset of said plurality of processors; and a first plurality of diagnostic communication links interconnecting said switching nodes; whereby at least one communication path exists between said intelligent diagnostic console and each one of said plurality of processors; a second intelligent diagnostic console for transmitting diagnostic commands and receiving diagnostic information; and a second tree network connecting said second intelligent console with each one of said plurality of processors, comprising; said plurality of switching nodes; and a second plurality of diagnostic communication links interconnecting said switching nodes; whereby at least one communication path exists between said second intelligent diagnostic console and each one of said plurality of processors. - View Dependent Claims (11)
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Specification