Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-02-22
2011-02-22
Baderman, Scott T (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
Reexamination Certificate
active
07895463
ABSTRACT:
Redundant application network appliances using a low latency lossless interconnect link are described herein. According to one embodiment, in response to receiving at a first network element a packet of a network transaction from a client over a first network for accessing a server of a datacenter, a layer 2 network process is performed on the packet and a data stream is generated. The data stream is then replicated to a second network element via a layer 2 interconnect link to enable the second network element to perform higher layer processes on the data stream to obtain connection states of the network transaction. In response to a failure of the first network element, the second network element is configured to take over processes of the network transaction from the first network element using the obtained connection states without user interaction of the client. Other methods and apparatuses are also described.
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International Search Report and Written Opinion mailed Feb. 2, 2009, for International Application No. PCT/US08/10080, 10 pages.
Bagepalli Nagaraj
Gandhi Prashant
Patra Abhijit
Prabhu Kirti
Thakar Anant
Baderman Scott T
Cisco Technology Inc.
Leibovich Yair
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