Electrical computers and digital processing systems: multicomput – Remote data accessing – Using interconnected networks
Reexamination Certificate
2008-04-08
2008-04-08
Lin, Wen-Tai (Department: 2154)
Electrical computers and digital processing systems: multicomput
Remote data accessing
Using interconnected networks
C709S212000, C709S220000, C370S381000, C710S005000
Reexamination Certificate
active
07356573
ABSTRACT:
Disclosed are methods and apparatus for data tapping within a storage area network (SAN) and providing tapped data to a third party device, such as an appliance. In general, mechanisms are provided in a SAN to allow a data tap of data flowing between an initiator and a target. In one implementation, a data virtual target (DVT) in created in a network device to intercept data sent by a specific initiator to a specific logical unit of a specific target. The data or a copy of the data is sent to both the specific logical unit of the specific target and to an appliance. The data routing may be accomplished by use of a virtual initiator (VI), which is configured to send the data (or a copy of the data) to the specific target and the appliance. In a transparent mode of operations, the DVT has a same PWWN (port world wide name) and FCID (fibre channel identifier) as the specific target. In a first proxy mode of operation, the DVT has a different PWWN and FCID than the specific target. In a second proxy mode of operation, the DVT has a same PWWN and different FCID than the specific target.
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Billore Prashant
D'Cruz Roy M.
Dutt Dinesh G.
Edsall Thomas J.
Kumar Sanjaya
Beyer & Weaver, LLP
Cisco Technology Inc.
Lin Wen-Tai
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