US 11,606,286 B2Granted

High performance software-defined core network

AssigneeVMware, Inc.

InventorsNithin Michael, Ao Tang, Victor de Souza Lima e Silva, Thiago Sousa Santos, Ning Wu, Archit Baweja, Ki Suh Lee, Yao Wang, Andrey Gushchin, Sakethnath Are

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Abstract

A system of nodes configured to form a network comprising virtual links in an overlay network provisioned over an underlay network including servers of a public network. The system includes virtual routers (VRs) at each node. Each VR is coupled to the network and to a tenant of the node, and configured to form in the network a set of virtual links corresponding to the tenant. One or more VRs includes a feedback control system comprising an objective function that characterizes the network. The VR is configured to receive link state data of the set of virtual links and control routing of a tenant traffic flow of each tenant according to a best route of the network determined by the objective function using the link state data.

Claims19

Dependent claims

An SD-WAN (software-defined wide area network) comprising:

a plurality of nodes deployed in a plurality of clouds,
each node comprising a plurality of virtual routers (VRs) and a plurality of virtual gateways,
each VR at each node deployed for one a tenant from a plurality of tenants and configured to form a set of virtual links over an underlay network with a set of other VRs that are deployed for the tenant at a set of other nodes, said virtual links that are formed between the VRs for each tenant defining an overlay SD-WAN provisioned for the tenant over the underlay network,
wherein at least one VR at each node includes a feedback control system comprising at least one objective function that characterizes the SD-WAN of the tenant for which the VR has been deployed, wherein the at least one VR is configured to receive link state data of the set of virtual links for the VR's SD-WAN and to control routing of traffic flows for the VR's tenant through the SD-WAN as determined by the at least one objective function using the link state data, and
each virtual gateway at each node deployed for one tenant, coupled to a corresponding VR that is deployed at the node for the tenant, and configured to forward traffic flows incoming to the SD-WAN of the tenant from a site of the tenant of a plurality of sites of the tenant that are connected through the SD-WAN of the tenant.

2 more elements

An SD-WAN (software-defined wide area network) comprising:

a plurality of nodes deployed in a plurality of clouds,
each node comprising a plurality of virtual routers (VRs) and a plurality of virtual gateways,
each VR at each node (i) deployed for one tenant from a plurality of tenants, (ii) configured to form a set of virtual links over an underlay network with a set of other VRs that are deployed for the tenant at a set of other nodes, said virtual links that are formed between the VRs for each tenant define an overlay SD-WAN provisioned for the tenant over the underlay network, and (iii) executing routing control algorithms to identify paths through the overlay SD-WAN provisioned for the tenant for routing the traffic flows for the VR's tenant through the SD-WAN from ingress nodes to egress nodes of the plurality of nodes, said routing algorithms using at least one objective function to identify said paths, the VR including a feedback control system that provides link state data and is configured to use the link state data in the objective function to generate a link weight for each link of the set of virtual links, and
each virtual gateway at each node deployed for one tenant, coupled to a corresponding VR that is deployed at the node for the tenant, and configured to forward traffic flows incoming to the SD-WAN of the tenant from a site of the tenant from a plurality of sites of the tenant that are connected through the SD-WAN of the tenant.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/818,862Filed 13 Mar 2020 · continuation
Priority: 31 Jan 2017
Published: US 2021/0006490 A17 Jan 2021
Granted: 14 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

H04L 41/142
Network analysis or design: using statistical or mathematical methods
H04L 41/40
Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks: using virtualisation of…
H04L 43/0864
Delays: round trip delays
H04L 43/0876
Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters: network utilisation, e.g. volume of…

Family

Application15/421,409Parent of this continuation · filed 31 Jan 2017
Application15/490,952Parent of this continuation-in-part · filed 19 Apr 2017
Application15/803,964Parent of this continuation-in-part · filed 6 Nov 2017
Application16/017,873Parent of this continuation-in-part · filed 25 Jun 2018
Application62/700,137Us provisional application · filed 18 Jul 2018
Application62/745,548Us provisional application · filed 15 Oct 2018
Application16/164,457Parent of this continuation · filed 18 Oct 2018
US 2021/0006490 A1Pre-grant publication · published 7 Jan 2021
US 2021/0399978 A9Pre-grant publication · published 23 Dec 2021
Application16/164,457Parent of this continuation-in-part
Application16/017,873Parent of this continuation
US 2018/0219765 A1Published application
US 2018/0219766 A1Published application
US 2019/0036810 A1Published application
US 2020/0036624 A1Published application
US 11,606,286 B2This patent

From the US filing history. Foreign family members aren’t listed.