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.

Date of Patent:
Oct. 15, 2013

Filed:

Jun. 23, 2011
Applicants:

Subrahmanyam Ongole, Cupertino, CA (US);

Sridhar Srinivasan, Bangalore, IN;

Inventors:

Subrahmanyam Ongole, Cupertino, CA (US);

Sridhar Srinivasan, Bangalore, IN;

Assignee:

Barracuda Networks, Inc., Campbell, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/745 (2013.01);
U.S. Cl.
CPC ...
Abstract

A transmission apparatus for optimizing a virtual private network operates by defragmenting and deduplicating transfer of variable sized blocks. A large data object is converted to a plurality of data paragraphs by a fingerprinting method. Each data paragraph is cached and hashed. The hashes are transmitted to at least one satellite apparatus. Only data paragraphs which are not previously cached at each satellite are transferred.


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