The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2008
Filed:
Jul. 08, 2005
Samar Sharma, Sunnyvale, CA (US);
Roy M. D'cruz, Sunnyvale, CA (US);
Sanjaya Kumar, Fremont, CA (US);
Prashant Billore, San Jose, CA (US);
Dinesh G. Dutt, Sunnyvale, CA (US);
Thomas J. Edsall, Cupertino, CA (US);
Samar Sharma, Sunnyvale, CA (US);
Roy M. D'Cruz, Sunnyvale, CA (US);
Sanjaya Kumar, Fremont, CA (US);
Prashant Billore, San Jose, CA (US);
Dinesh G. Dutt, Sunnyvale, CA (US);
Thomas J. Edsall, Cupertino, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
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.