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:
Jun. 23, 2015
Filed:
Dec. 16, 2013
Applicant:
Palo Alto Networks, Inc., Santa Clara, CA (US);
Inventor:
Sajit Bhaskaran, Sunnyvale, CA (US);
Assignee:
Palo Alto Networks, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/721 (2013.01); H04L 12/939 (2013.01); H04L 12/741 (2013.01); H04L 12/933 (2013.01); H04L 12/931 (2013.01);
U.S. Cl.
CPC ...
H04L 45/44 (2013.01); H04L 49/101 (2013.01); H04L 49/351 (2013.01); H04L 49/552 (2013.01); H04L 49/65 (2013.01); H04L 45/74 (2013.01);
Abstract
An apparatus and a method are described for zero packet loss task migration in an network switch in a computer network. The invention relates to active or programmable networks, i.e. networks based on packet switching algorithms and switch configurations which are subject to change. A well-defined protocol enables an intelligent switch to migrate tasks from one forwarding engine to another without any packet loss. This enables the algorithms and configurations of the switch to be updated or modified arbitrarily.