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:
Oct. 16, 2012
Filed:
Jul. 05, 2007
Puneet Gupta, Sunnyvale, CA (US);
Sunil K. Srivastava, Fremont, CA (US);
David Ward, Somerset, WI (US);
Reshad Rahman, Ottawa, CA;
David Toscano, Ottawa, CA;
Puneet Gupta, Sunnyvale, CA (US);
Sunil K. Srivastava, Fremont, CA (US);
David Ward, Somerset, WI (US);
Reshad Rahman, Ottawa, CA;
David Toscano, Ottawa, CA;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, an apparatus includes a physical port and a plurality of logical sub-interfaces under the physical port. The physical port and the logical sub-interfaces are configured as a Bidirectional Forwarding Detection (BFD) neighbor group. The physical port being configured to run BFD sessions to detect failures at a first rate that is substantially faster as compared to a second rate of BFD sessions to detect failures on the logical sub-interfaces. The physical port notifies the logical sub-interfaces of a BFD failure at the physical port, with the logical sub-interfaces shutting down responsive to the notification.