Network control system for dynamically switching a logical connection between an identified terminal device and an indicated processing unit
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United States of America Patent
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-
Jun 9, 1992
Grant Date -
N/A
app pub date -
Nov 18, 1988
filing date -
Nov 20, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control method and apparatus for dynamically switching a logical session in an information processing system having a network control system configuration in which a plurality of terminal devices are connected to a plurality of processing units via at least one communication control processer. The communication control processor includes storage area for storing histories of command data transactions corresponding to the respective terminal devices, and retrieves the histories of command data transactions of the terminal devices connected logically to a processing unit to be replaced when switching from the processing unit to be replaced to another central processing unit is performed, delivers to the processing unit to be replaced command data to disconnect logical connective relationship from the processing unit to be replaced, and establishes logical connective relationship to the replacing processing unit, and for automatically delivering the retrieved histories of the command data transactions to the replacing processing unit.
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