US 11,689,959 B2
Generating path usability state for different sub-paths offered by a network link
Jegadish Devadoss, Chennai (IN); Kartik Kamdar, San Jose, CA (US); Stephen Craig Connors, San Jose, CA (US); Satheesh Kumar Rajendran, Chennai (IN); and Ram Kumar Manoharan, Chennai (IN)
Assigned to VMWARE, INC., Palo Alto, CA (US)
Filed by VMware, Inc., Palo Alto, CA (US)
Filed on Apr. 17, 2020, as Appl. No. 16/851,308.
Claims priority of application No. 202041003220 (IN), filed on Jan. 24, 2020.
Prior Publication US 2021/0234805 A1, Jul. 29, 2021
Int. Cl. H04L 47/80 (2022.01); H04W 28/02 (2009.01); H04L 47/2408 (2022.01); H04L 47/2441 (2022.01); H04L 45/302 (2022.01); H04L 47/2425 (2022.01); H04L 43/062 (2022.01); H04L 43/0829 (2022.01); H04L 43/0852 (2022.01); H04L 43/087 (2022.01); H04L 49/20 (2022.01); H04L 49/55 (2022.01); H04L 43/10 (2022.01); H04L 45/50 (2022.01)
CPC H04W 28/0268 (2013.01) [H04L 43/062 (2013.01); H04L 43/087 (2013.01); H04L 43/0835 (2013.01); H04L 43/0858 (2013.01); H04L 43/10 (2013.01); H04L 45/302 (2013.01); H04L 45/50 (2013.01); H04L 47/2408 (2013.01); H04L 47/2425 (2013.01); H04L 47/2441 (2013.01); H04L 47/805 (2013.01); H04L 49/205 (2013.01); H04L 49/555 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of forwarding packets associated with a plurality of service classes of a physical L1 (layer 1) QoS (quality of service) aware network link between a first forwarding node at a first physical site of a wide area network (WAN) and a second forwarding node at a second physical site of the WAN, the method comprising:
at the first forwarding node:
designating an operational state of each service class of the physical L1 QoS aware network link, which has the plurality of associated service classes, to be an operational first state, wherein at least two different service classes of the physical L1 QoS aware network link are associated with at least two different QoS guarantees;
identifying path quantifying metric (PQM) values for each service class of the plurality of service classes while forwarding packets from the first forwarding node at the first physical site to the second forwarding node at the second physical site for each service class; and
based on a particular PQM value of a particular service class, changing the operational state of the particular service class to a degraded or failed second state in order to reduce a number of packets forwarded to the second forwarding node at the second physical site for the particular service class, a degraded state signifying that the particular service class should be used less and a failed state signifying that the particular service class should not be used.