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. 14, 2021

Filed:

May. 22, 2020
Applicant:

Arista Networks, Inc., Santa Clara, CA (US);

Inventors:

Deepak Sebastian, San Francisco, CA (US);

Aaron Gregory Levitan, San Francisco, CA (US);

Assignee:

Arista Networks, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04L 43/12 (2013.01); H04L 43/04 (2013.01); H04L 43/14 (2013.01);
Abstract

A method performed by a network device for offloading bidirectional forwarding detection (BFD) processes from an operating system of the network device to a physical communication interface on the network device, that includes receiving, by a user space packet manager executing in the operating system, a BFD transmission session request, making a first determination that utilization of an interface processor, of the physical communication interface, is below a threshold, generating, based on the first determination, a transmission packet template, wherein the generation is performed by the user space packet manager, sending, by the user space packet manager, the transmission packet template to the physical communication interface, and initiating, after the sending, a BFD transmission session in the physical communication interface, wherein the initiating is performed by the user space packet manager.


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