METHOD FOR MINIMAL SERVICE IMPACT DURING SOFTWARE UPGRADE IN NETWORK ELEMENTS (NES)

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United States of America Patent

APP PUB NO 20160364231A1
SERIAL NO

14735483

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Abstract

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Exemplary methods include in response to receiving an indication to perform an in-service software upgrade (ISSU), an init process executing on a current root file system is configured to perform operations comprising: 1) releasing the current root file system by setting an indication that the ISSU is in progress, and terminating processes executing on the current root file system, and 2) switching from the current root file system to a new root file system by moving a root from the current root file system to the new root file system, moving critical system files from the current root file system to the new root file system, unmounting the current root file system, and executing an init process on the new root file system. The init process executing on the new root file system is configured to perform operations comprising starting processes on the new root file system.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)STOCKHOLM12205

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
BHARATHI, Vijayaraghavan San Jose, US 1 0
OWENS, Peter J San Jose, US 13 142
TATI, Srikar San Jose, US 1 0

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