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:
Jul. 28, 2020

Filed:

Nov. 29, 2018
Applicant:

Riverbed Technology, Inc., San Francisco, CA (US);

Inventors:

Bill Y. Chin, Sunnyvale, CA (US);

Elanchezhiyan Elango, Cupertino, CA (US);

Venkatram Ramanathan, San Jose, CA (US);

Assignee:

Riverbed Technology, Inc., San Francisco, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 12/24 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 41/0893 (2013.01); H04L 67/32 (2013.01);
Abstract

Systems and techniques are described for applying a set of policy rules to network traffic. During operation, conditions specified in the set of policy rules can be evaluated, wherein each condition is a logical expression defined over a set of variables, and is evaluated by substituting values of the set of variables associated with the network traffic into the logical expression. Next, a subset of policy rules can be selected whose conditions evaluated as true. A highest precedence policy rule from the subset of policy rules can then be identified by applying a set of precedence rules to the subset of policy rules, wherein the set of precedence rules imposes a precedence order on the set of policy rules based on condition categories and condition specificities. Finally, an action that is specified in the highest precedence policy rule can be performed.


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