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:
Aug. 24, 2021

Filed:

Nov. 15, 2019
Applicant:

Versa Networks, Inc., San Jose, CA (US);

Inventors:

Jayakrishnan V. Iyer, Morgan Hill, CA (US);

Krishna Sankaran, Palo Alto, CA (US);

Roopa Bayar, Cupertino, CA (US);

Akshay Adhikari, San Jose, CA (US);

Apurva Mehta, Cupertino, CA (US);

Assignee:

Versa Networks, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/715 (2013.01); H04L 12/24 (2006.01);
U.S. Cl.
CPC ...
H04L 43/0829 (2013.01); H04L 41/5019 (2013.01); H04L 43/0852 (2013.01); H04L 43/106 (2013.01); H04L 43/12 (2013.01); H04L 45/64 (2013.01);
Abstract

An advancement over previous techniques using only certain out-of-band probe PDUs to determine loss. Packet loss statistics for a SD-WAN overlay path can be calculated for every packet transmitted by one endpoint and every packet received at the other endpoint. The roles of the positions of circular buffers can be periodically rotated from active to pre-stable to stable to post-stable. Counters in the active role can be incremented whenever a packet is transmitted. A position identifier can indicate which counter to increment when the packet is received. Counters in positions that are stable can be used to produce loss statistics for the SD-WAN overlay path.


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