	US 12,445,383 B2
	Efficient congestion control in a tunneled network
William R. Sears, Lexington, MA (US); and Martin K. Lohner, Medford, MA (US)
Assigned to Akamai Technologies, Inc., Cambridge, MA (US)
Filed by Akamai Technologies, Inc., Cambridge, MA (US)
Filed on Oct. 31, 2023, as Appl. No. 18/385,776.
Application 18/385,776 is a continuation of application No. 17/233,742, filed on Apr. 19, 2021, granted, now 11,805,061, issued on Oct. 31, 2023.
Application 17/233,742 is a continuation of application No. 16/365,502, filed on Mar. 26, 2019, granted, now 10,986,027, issued on Apr. 20, 2021.
Claims priority of provisional application 62/648,470, filed on Mar. 27, 2018.
Prior Publication US 2024/0064104 A1, Feb. 22, 2024
Int. Cl. H04L 47/24 (2022.01); H04L 12/46 (2006.01); H04L 47/125 (2022.01)

CPC H04L 47/24 (2013.01) [H04L 47/125 (2013.01); H04L 12/4633 (2013.01)]

11 Claims

1. A method of congestion control over multiple paths of network links, comprising:

for each data packet being delivered from a sender, maintaining an indication of which path of the multiple paths the data packet uses for transit;

based on the indications, determining a bandwidth and delay for each path of the multiple paths;

sending bursts of traffic over one or more of the multiple paths;

responsive to the bursts of traffic, determining whether any of the multiple paths share a constrained network link; and

upon determining that at least first and second of the multiple paths share a constrained network link, applying a congestion control algorithm to the constrained network link.