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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.:

US 11489784 B1

PDFFull Text
Date of Patent:
Nov. 01, 2022

Filed:

Oct. 27, 2020

Adaptive private network with path maximum transmission unit (mtu) discovery process

Applicant:

Talari Networks Incorporated, Cupertino, CA (US);

Inventors:

Todd Martin, Campbell, CA (US);

Wei Huang, Cary, NC (US);

Sonia Kiang Rovner, Chapel Hill, NC (US);

Assignee:

TALARI NETWORKS INCORPORATED, Cupertino, CA (US);

Attorney:

Jenkins, Wilson, Taylor & Hunt, P.A.

Primary Examiner:

Gregory B Sefcheck

Assistant Examiner:

Suk Jin Kang

Int. Cl.
CPC ...
H04L 47/36 (2022.01); G06F 11/20 (2006.01); G06F 11/14 (2006.01); G06F 11/07 (2006.01); H04L 41/0659 (2022.01); H04L 41/12 (2022.01); H04L 67/12 (2022.01); H04L 45/02 (2022.01); H04L 45/00 (2022.01); H04L 43/10 (2022.01); H04L 47/28 (2022.01); H04L 47/34 (2022.01); H04L 69/28 (2022.01); H04L 43/0852 (2022.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
H04L 47/365 (2013.01); G06F 11/0709 (2013.01); G06F 11/1464 (2013.01); G06F 11/2002 (2013.01); G06F 11/2005 (2013.01); H04L 41/0659 (2013.01); H04L 41/12 (2013.01); H04L 43/10 (2013.01); H04L 45/10 (2013.01); H04L 45/26 (2013.01); H04L 45/40 (2013.01); H04L 47/28 (2013.01); H04L 47/34 (2013.01); H04L 67/12 (2013.01); G06F 2201/86 (2013.01); H04L 43/0858 (2013.01); H04L 69/28 (2013.01); H04W 84/12 (2013.01);
Abstract

Systems and techniques are described for a path maximum transmission unit (MTU) discovery method that allows the sender of IP packets to discover the MTU of packets that it is sending over a conduit to a given destination. The MTU is the largest packet that can be sent through the network along a path without requiring fragmentation. The path MTU discovery method actively probes each sending path of each conduit with fragmentation enabled to determine a current MTU and accordingly increase or decrease the conduit MTU. The path MTU discovery process is resilient to errors and supports retransmission if packets are lost in the discovery process. The path MTU discovery process is dynamically adjusted at a periodic rate to adjust to varying network conditions.

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