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公开(公告)号：US12261777B2
公开(公告)日：2025-03-25
申请号：US18234375
申请日：2023-08-16
Applicant: VMware LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
Abstract: Some embodiments of the invention provide a method for forwarding packets through an SD-WAN. To facilitate the forwarding of packets between first and second regions of the SD-WAN, said first and second regions having respective first and second hub routers forwarding packets between respective first and second sets of edge routers of respective first and second sets of sites of the first and second regions, the method directs (1) the first set of edge routers to establish connections to the first and second hub routers, and to use the first hub router as a next-hop to initiate communications with the second set of edge routers, and (2) the second set of edge routers to establish connections to the first and second hub routers, and to use the second hub router as a next-hop to initiate communications with the first set of edge routers.
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公开(公告)号：US20250062990A1
公开(公告)日：2025-02-20
申请号：US18234375
申请日：2023-08-16
Applicant: VMware LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
Abstract: Some embodiments of the invention provide a method for forwarding packets through an SD-WAN. To facilitate the forwarding of packets between first and second regions of the SD-WAN, said first and second regions having respective first and second hub routers forwarding packets between respective first and second sets of edge routers of respective first and second sets of sites of the first and second regions, the method directs (1) the first set of edge routers to establish connections to the first and second hub routers, and to use the first hub router as a next-hop to initiate communications with the second set of edge routers, and (2) the second set of edge routers to establish connections to the first and second hub routers, and to use the second hub router as a next-hop to initiate communications with the first set of edge routers.
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3.发明申请公开(公告)号：US20250063470A1
公开(公告)日：2025-02-20
申请号：US18234379
申请日：2023-08-16
Applicant: VMware, LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
Abstract: Some embodiments of the invention provide a method for providing asymmetric route resolutions in an SD-WAN. The method is performed at a first edge router at a first site in a first region connected by the SD-WAN. From a first hub router of a first cluster, the method receives a flow sent by a second edge router at a second site in a second region via a first route that points to a next-hop second hub router of a second cluster. The method identifies a default second route from the first edge router to the second edge router pointing to a next-hop third hub router of the second cluster. When the first route includes secure overlay tunnels, and source addresses of the first packet flow and the first route match, the method uses the first route to send a return flow to the second edge router to ensure symmetric routing.
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公开(公告)号：US11909815B2
公开(公告)日：2024-02-20
申请号：US17833566
申请日：2022-06-06
Applicant: VMware LLC
Inventor： Santosh Pallagatti Kotrabasappa , Abhishek Goliya , Sajan Liyon , Sairam Veeraswamy , Sumit Mundhra
IPC: H04L67/1021 , H04L45/121 , H04L45/12
CPC classification number: H04L67/1021 , H04L45/121 , H04L45/126
Abstract: Some embodiments provide a method of implementing context-aware routing for a software-defined wide-area network, at an SD-WAN edge forwarding element (FE) located at a branch network connected to the SD-WAN. The method receives, from an SD-WAN controller, geolocation route weights for each of multiple cloud datacenters across which a set of application resources is distributed. The application resources are all reachable at a same virtual network address. For each of the cloud datacenters, the method installs a route for the virtual network address between the branch network and the cloud datacenter. The routes have different total costs based at least in part on the geolocation metrics received from the SD-WAN controller. The SD-WAN edge FE selects between the routes to establish connections to the set of application resources.
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5.发明申请公开(公告)号：US20250062983A1
公开(公告)日：2025-02-20
申请号：US18234380
申请日：2023-08-16
Applicant: VMware LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
Abstract: Some embodiments of the invention provide a method for using route filtering to relay routes between members of hub router clusters in an SD-WAN to reduce redundant route notifications to route reflectors (RRs) that advertise routes to hub routers in multiple regions connected by the SD-WAN and multiple edge routers at sites across the multiple regions. The method is performed at a first hub router of a first cluster. From a first edge router at a first site in a first region, the method receives routes of the first edge router. The method distributes the routes of the first edge router to a particular RR directly connected to the first cluster. The method distributes, to each other hub router of the first cluster, the routes of the first edge router along with an identifier that indicates that the routes should not be redistributed to the particular RR.
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Patent Agency Ranking
公开(公告)号：US20250063469A1
公开(公告)日：2025-02-20
申请号：US18234378
申请日：2023-08-16
Applicant: VMware, LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
Abstract: Some embodiments of the invention provide a method for providing dynamic edge-to-edge support across multi-hops in an SD-WAN connecting multiple regions. The method is performed at a first route reflector for a first of the multiple regions. The method receives, from a first edge router at a first site of the first region, a first request for endpoint information associated with a second edge router at a second site of a second region. After determining that the first route reflector does not have a direct connection to the second edge router, the method identifies a next-hop hub router for reaching the second edge router. The method sends a second request to the identified next-hop hub router to request the identified next-hop hub router to forward endpoint information for the second edge router to the first edge router for use in establishing a dynamic edge-to-edge connection with the second edge router.
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公开(公告)号：US20250062979A1
公开(公告)日：2025-02-20
申请号：US18234376
申请日：2023-08-16
Applicant: VMware LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
IPC: H04L45/122 , H04L45/00
Abstract: Some embodiments of the invention provide a method for forwarding packets through an SD-WAN. The method is performed at a route reflector that advertises routes to facilitate forwarding of packets between first and second regions of the SD-WAN. The method advertises (1) to a first set of edge routers in the first region, a first route identifying a next-hop first hub router for initiating communications with a second set of edge routers in the second region, and (2) to the second set of edge routers, a second route identifying a next-hop second hub router for initiating communications with the first set of edge routers. When the second hub router loses connectivity to a first edge router of the first set of edge routers, the method advertises to the second set of edge routers a third route identifying the next-hop first hub router for initiating communications with the first edge router.
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公开(公告)号：US20250063468A1
公开(公告)日：2025-02-20
申请号：US18234374
申请日：2023-08-16
Applicant: VMware LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
Abstract: Some embodiments of the invention provide a method for implementing an SD-WAN connecting multiple sites at multiple physical locations. The method is performed at a first route reflector for a first region of the SD-WAN. The method receives, from a hub router of the first region, a peer-connection notification regarding a newly connected first edge router located at a first site in a second region. The method determines that a routing table maintained by the first route reflector does not include routes of the first edge router and that the first route reflector does not have a direct connection to the first edge router. Based on said determining, the method requests routes of the first edge router from the hub router. After receiving from the hub router the requested routes of the first edge router, the method updates the routing table to include the routes of the first edge router.
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9.发明申请公开(公告)号：US20250063461A1
公开(公告)日：2025-02-20
申请号：US18234377
申请日：2023-08-16
Applicant: VMware LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
IPC: H04W40/12
Abstract: Some embodiments of the invention provide a method for interconnecting hub router clusters in an SD-WAN. The method is performed for each hub router of a first cluster and located in a first of multiple regions connected by the SD-WAN. The method establishes a connection with a respective hub router of a second cluster and located in a second of the multiple regions. The method sends, to a route reflector for the first region connected to the first cluster, a first peer-connection notification identifying the hub router as a next-hop for reaching the respective hub router. For each other hub router of the first cluster, the method receives from the route reflector a second peer-connection notification identifying the other hub router as a next-hop for reaching the other hub router's respective second cluster hub router for use in reaching edge routers connected to each other hub router's respective hub router.
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公开(公告)号：US20250063420A1
公开(公告)日：2025-02-20
申请号：US18234372
申请日：2023-08-16
Applicant: VMware LLC
Inventor： Arun Kumar Srinivasan , Navaneeth Krishnan Ramaswamy , Sumit Mundhra , Saravanan Kandasamy , Balaji Shanmugam
IPC: H04W28/02
Abstract: Some embodiments of the invention provide a method of detecting and remediating anomalies in an SD-WAN implemented by multiple forwarding elements (FEs) located at multiple sites connected by the SD-WAN. The method receives, from the multiple FEs, multiple sets of flow data associated with application traffic that traverses the multiple FEs. The method uses a first set of machine-trained processes to analyze the multiple sets of flow data in order to identify at least one anomaly associated with at least one particular FE in the multiple FEs. The method uses a second set of machine-trained processes to identify at least one remedial action for remediating the identified anomaly. The method implements the identified remedial action by directing an SD-WAN controller deployed in the SD-WAN to implement the identified remedial action.
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