Multiplex communications – Wide area network – Packet switching
Patent
1995-10-16
1996-11-05
Barry, Esq., Lance Leonard
Multiplex communications
Wide area network
Packet switching
39520011, 39518401, 370 13, 370 17, 364 161, 36424294, 3642642, 3642645, H04L 1226
Patent
active
055726747
ABSTRACT:
A method in accordance with the invention is implemented via a set of novel computer programs referred to for convenience as NEWPROG. A "controller NEWPROG," resides in one or more communication controllers on an SNA network as a "front end" processor for the NCP executing in that controller. The controller NEWPROG uses interception techniques to monitor the controller's incoming and outgoing messages and thereby 1) collect statistical information about network performance, and 2) exchange "backchannel" messages with controller NEWPROGs operating in adjacent controllers. The controller NEWPROG can alter dynamically the tuning parameters in that NCP. A "host NEWPROG" executes in a host computer to provide a monitoring and control station for a network administrator. The host NEWPROG communicates with controller NEWPROGs on the network via a virtual logical unit (VLU) executing within at least one controller. The host NEWPROG and controller NEWPROGs collectively act as a set of "shadow" control programs operating as a distributed monitor system. The shadow programs collaborate to optimize network performance and permit a network administrator to tune the network manually; in addition, the controller NEWPROG can tune its associated NCP automatically without program regeneration and without the need for involvement by the host NEWPROG.
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Barry, Esq. Lance Leonard
BMC Software Inc.
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