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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.:

US 9674080 B1

PDFFull Text
Date of Patent:
Jun. 06, 2017

Filed:

Jun. 27, 2014

Proxy for port to service instance mapping

Applicant:

Futurewei Technologies, Inc., Plano, TX (US);

Inventors:

Hong Zhang, Palo Alto, CA (US);

Louis Fourie, Pleasanton, CA (US);

Assignee:

Futurewei Technologies, Inc., Plano, TX (US);

Attorney:

Slater Matsil, LLP

Primary Examiner:

Ricky Ngo

Assistant Examiner:

Dewanda Samuel

Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/725 (2013.01); H04L 29/06 (2006.01); H04L 12/935 (2013.01); H04L 29/08 (2006.01); H04L 12/741 (2013.01); H04L 12/715 (2013.01); H04L 12/717 (2013.01);
U.S. Cl.
CPC ...
H04L 45/306 (2013.01); H04L 49/3009 (2013.01); H04L 67/2819 (2013.01); H04L 69/22 (2013.01); H04L 45/42 (2013.01); H04L 45/64 (2013.01); H04L 45/74 (2013.01);
Abstract

A method for managing a chain of service appliances. A method for interoperating with a legacy service appliance which does not understand/interpret the service chain header format. The method specifies a proxy device which receives a data packet with chain header that contains a chain ID. The chain ID identifies a particular service chain of network services to be performed on the data packet by a plurality of service appliances. The method removes a chain header from the data packet. The method sends the data packet to the service appliance via a logical port that corresponds to the data packet's chain ID. The method includes receiving the data packet back from the service appliance via the logical port. Lastly, the method includes restoring the chain header in the data packet based upon the logical port through which the data packet is received.

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Zhang, Hong. (2017). Proxy for port to service instance mapping (U.S. Patent No. 9674080). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9674080

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