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:
Sep. 30, 2014

Filed:

Aug. 09, 2010
Applicants:

Sami Boutros, San Ramon, CA (US);

Sylvain Masse, Suisse, CH;

Clarence Filsfils, Brussels, BE;

Inventors:

Sami Boutros, San Ramon, CA (US);

Sylvain Masse, Suisse, CH;

Clarence Filsfils, Brussels, BE;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); G06F 15/173 (2006.01); H04L 12/26 (2006.01); H04L 12/721 (2013.01); H04L 12/709 (2013.01); H04L 12/24 (2006.01);
U.S. Cl.
CPC ...
H04L 43/0811 (2013.01); H04L 45/68 (2013.01); H04L 45/245 (2013.01); H04L 41/0663 (2013.01);
Abstract

In one embodiment, a connectivity verification protocol (CVP) session for a particular virtual interface (VI) may operate on a particular group of two or more line cards (LCs) on a network device. The group of LCs may then transmit CVP session packets, at a reduced rate that is sufficient to maintain the CVP session based on a negotiated CVP full rate, onto the particular VI through ingress path processing on the network device. Ingress path processing, in particular, takes transmitted CVP session packets and egresses them onto an appropriate LC of the network device currently responsible for the VI egress. Also, in response to receiving CVP session packets for the VI on an LC of the network device currently responsible for the VI ingress, the receiving LC may forward the received CVP session packets to the particular corresponding group of LCs, which may then process the received CVP session packets.


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