Root-cause analysis of network performance problems

Details Root-cause analysis of network performance problems Root-cause analysis of network performance problems

2005-03-23

2009-02-10

Harper, Kevin C. (Department: 2616)

Multiplex communications

Diagnostic testing

C370S242000, C709S224000

Reexamination Certificate

active

07489639

ABSTRACT:
A method for diagnosing network performance problems includes providing a graph representing a topology of a network including first nodes that are classified as providers of a resource, second nodes that are classified as consumers of the resource, and third nodes that are classified as mediators intervening between the providers and the consumers. Responsively to a report of a performance problem encountered by a given consumer in the network, at least one input/output (I/O) path is traced through the graph connecting the given consumer to one or more of the providers. One or more problematic nodes are identified along the at least one I/O path as possible causes of the performance problem.

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