Technique for fast network device configuration upgrade and reload

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9792106
SERIAL NO

14450935

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Abstract

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A network device includes a control processor and a network processor unit (NPU) to forward network packets between network ports of the device. The processor downloads a new operating system (OS). The processor performs a fast upgrade to the new OS using a fast upgrade/reload technique to isolate the processor from interruptions and, without rebooting the processor, start the new OS in place of an existing OS. The fast upgrade/reload also includes delaying a reset of the NPU so that the NPU continues to route the network packets based on existing forwarding information. The fast upgrade/reload includes resetting the NPU only when the new OS first accesses the NPU, and then programming the reset NPU.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CISCO TECHNOLOGY, INC.SAN JOSE, CA14621

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kommula, Raja Cupertino, US 1 0
Meo, Francesco Mountain View, US 1 0
Mididaddi, Naren Saratoga, US 1 0
Naik, Chickayya San Jose, US 6 28
Subramanian, Sharanya San Jose, US 2 0

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
* 2009/0158,266 DEPLOYMENT TOOL FOR INCREASING EFFICIENCY IN A PRODUCTION COMPUTER SYSTEM 3 2008
* 2010/0250,908 Concurrent Patching of Operating Systems 15 2010
 
Other [Check patent profile for assignment information] (1)
* 2003/0033,406 Apparatus for and a method of network load testing 45 2002
 
WSOU INVESTMENTS, LLC (1)
* 2013/0064,102 VIRTUAL CHASSIS SYSTEM CONTROL PROTOCOLS 16 2012
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
* 2008/0019,383 Telecommunications switching 6 2006
 
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (1)
* 2007/0115,967 Dynamic discovery of ISO layer-2 topology 25 2006
 
CISCO TECHNOLOGY, INC. (2)
* 2007/0159,987 Seamless spanning tree restart of a single supervisor 7 2006
8190720 Performing an in-service software reload on a network device 9 2006
 
JUNIPER NETWORKS, INC. (2)
* 8799419 Configuration update on virtual control plane 5 2010
* 8799422 In-service configuration upgrade using virtual machine instances 11 2011
 
SPL INNOTECH PTE LTD. (1)
* 2005/0160,417 System, method and apparatus for multimedia display 2 2005
 
GOOGLE LLC (1)
* 2007/0162,730 Method for delaying and executing system administration operations in unattended mode 1 2001
* Cited By Examiner

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