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:
May. 20, 2025
Filed:
Apr. 22, 2022
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventors:
Assignee:
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 25/22 (2006.01); H04L 45/00 (2022.01); H04L 45/28 (2022.01); H04L 45/50 (2022.01);
U.S. Cl.
CPC ...
H04L 45/22 (2013.01); H04L 45/28 (2013.01); H04L 45/50 (2013.01);
Abstract
A mechanism that allows CE-to-PE traffic to achieve minimal traffic loss at the same rate as PE-to-CE redirection (FRR). The solution relies on a fast-unblocking of the Backup-DF interface based on appearance of redirected packets from the active DF-Elected peer. A slow-path confirmation mechanism is included to further mitigate false-positives, as well as maintaining data plane and control plane in sync.