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:
Aug. 22, 2017
Filed:
Apr. 28, 2015
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Tian Cheng Liu, Beijing, CN;
Baohua Yang, Beijing, CN;
Yue Zhang, Beijing, CN;
Kai Zheng, Beijing, CN;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/64 (2006.01); H04L 12/741 (2013.01); H04L 29/06 (2006.01); H04L 12/721 (2013.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 12/6418 (2013.01); H04L 45/127 (2013.01); H04L 45/566 (2013.01); H04L 45/745 (2013.01); H04L 67/327 (2013.01); H04L 69/22 (2013.01);
Abstract
Techniques for realizing service chaining, a corresponding apparatus and an SDN (Software Defined Network) controller are disclosed. The method includes temporarily modifying an original destination MAC (media access control) address of a packet and an original source MAC address the packet during the time the packet makes a hop from one middlebox to another. A restore operation is used to restore the original source and destination MAC addresses after the hop is made.