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:
Apr. 05, 2016
Filed:
Jun. 02, 2015
Applicant:
Hangzhou H3c Technologies Co., Ltd., Hangzhou, CN;
Inventor:
Wan Zhou, Beijing, CN;
Assignee:
HANGZHOU H3C TECHNOLOGIES CO., LTD., Zhejiang, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/705 (2013.01); H04L 12/46 (2006.01); H04L 12/753 (2013.01); H04L 12/801 (2013.01); H04L 12/911 (2013.01); H04L 12/715 (2013.01);
U.S. Cl.
CPC ...
H04L 45/18 (2013.01); H04L 12/4633 (2013.01); H04L 12/4641 (2013.01); H04L 45/48 (2013.01); H04L 47/10 (2013.01); H04L 47/70 (2013.01); H04L 45/04 (2013.01);
Abstract
According to an example, a method for avoiding a loop in a network, which is performed by each ED in each VPN site, comprises: interacting with other EDs in a same VPN site to elect a DED; assigning an authorized forwarding instance to each ED in the same VPN site when the ED is elected as the DED; obtaining the authorized forwarding instance from the DED when the ED is not elected as the DED; allowing traffic of the authorized forwarding instance transmitted from or to a public network, and blocking traffic of unauthorized forwarding instance transmitted from or to the public network.