Network operating system for maintaining redundant master control blade management information
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United States of America Patent
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May 26, 2009
Grant Date -
Mar 29, 2007
app pub date -
Nov 5, 2006
filing date -
Sep 13, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods are provided for maintaining redundant master control blade management information in switch. According to one embodiment, a network operating system (NOS) is executed on processor elements of a switch. A distributed messaging layer channel is created among a dynamic set of control blades intercommunicating within the switch. Master control blade management information is maintained on a master control blade. Redundant master control blade management information is maintained on one or more standby control blades by performing bulk updates and flash updates to the redundant master control blade management information and the standby control blades periodically performing a consistency check against the redundant information. The bulk updates are triggered by dynamic events. The flash updates are triggered by individual changes to a global database. If the consistency check fails, then the standby control blade requests a bulk update from the master control blade.
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