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.

Date of Patent:
Feb. 02, 2016

Filed:

Jan. 06, 2014
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Nikunj R. Vaidya, Milpitas, CA (US);

Pradosh Mohapatra, Fremont, CA (US);

Arun Satyanarayana, Fremont, CA (US);

Pankaj Bhagra, Fremont, CA (US);

Clarence Filsfils, Brussels, BE;

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); H04L 12/24 (2006.01); H04L 12/751 (2013.01); H04L 12/703 (2013.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04L 41/0672 (2013.01); H04L 41/04 (2013.01); H04L 41/0659 (2013.01); H04L 41/0677 (2013.01); H04L 45/02 (2013.01); H04L 45/28 (2013.01); H04L 43/0811 (2013.01); H04L 43/0817 (2013.01);
Abstract

In one embodiment, a network device may detect a data plane critical fault condition, while a corresponding control plane is not experiencing a critical fault condition. In response to a network device based critical fault condition, the network device may activate and advertise an increased and expensive usable metric for each network interface of the network device. On the other hand, in response to an interface based critical fault condition, the network device may activate and advertise an increased and expensive usable metric for one or more particular network interfaces of the interface based critical fault, and signals, over the control plane to a corresponding network device at an opposing end of each particular network interface of the interface based critical fault, a request to activate and advertise an increased and expensive usable metric at the opposing end of each particular network interface.


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