公开(公告)号：US12069024B2

公开(公告)日：2024-08-20

申请号：US17282911

申请日：2019-01-17

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Isaac Theogaraj ,  Venkatesan Marichetty

IPC: H04L61/5053 ,  H04L61/5014 ,  H04L61/5061 ,  H04L61/5076

CPC classification number: H04L61/5053 ,  H04L61/5014 ,  H04L61/5061 ,  H04L61/5076

Abstract: Systems and methods are provided for monitoring a connection state between a primary DHCP server and a secondary DHCP server, determining that a connection between the primary DHCP server and the secondary DHCP server has not been established within a first timeframe, establishing a partner-down operation state at one or more of the primary DHCP server and secondary DHCP server, and, during an established partner-down operation state, issuing/allocating short-term network address leases from one of the primary DHCP servers or secondary DHCP servers. Short-term network leases of the present disclosure may have a duration of between 1 second and 5 minutes.

公开(公告)号：US11929988B2

公开(公告)日：2024-03-12

申请号：US17171963

申请日：2021-02-09

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gopal Gupta ,  Abhinesh Mishra ,  Isaac Theogaraj ,  Aseem Sethi

IPC: H04L9/40 ,  H04L67/61

CPC classification number: H04L63/0272 ,  H04L63/102 ,  H04L63/105 ,  H04L63/1425 ,  H04L67/61

Abstract: Systems and methods are provided for dynamic virtual private network concentrators (VPNC) gateway selection and on-demand VRF-ID configuration. A dynamic VPNC gateway selection component can dynamically route to a particular VPNC gateway based on multiple user-specific factors, including: a) behavior of users on the network; and b) performance of a destination service/device. A dynamic VPNC gateway selection component can rank a user based on one or more factors relating to the behavior of the user. Also, the dynamic VPNC gateway selection component can determine whether a VPNC gateway at a data center is healthy, and whether a destination service at the data center is healthy. The dynamic VPNC gateway selection component can dynamically select a VPNC gateway from a plurality of VPNC gateways at the data center for communicating forwarded traffic from the user based on the user's ranking if either the VPNC gateway or the service are unhealthy.

公开(公告)号：US11824776B2

公开(公告)日：2023-11-21

申请号：US17355335

申请日：2021-06-23

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Sujeeth Padavala ,  Isaac Theogaraj ,  Amit Pingale

IPC: H04L45/00 ,  H04L9/40 ,  H04L47/283 ,  H04L47/125 ,  H04L45/121 ,  H04L61/4511

CPC classification number: H04L45/72 ,  H04L45/121 ,  H04L47/125 ,  H04L47/283 ,  H04L61/4511 ,  H04L63/029

Abstract: A method including receiving, in a controller, from a client device in a network, a resolution query specifying a host name, is provided. The method includes parsing the resolution query to determine whether the host name is associated with an core host or with a public host, and directing the resolution query to a remote domain name system server dedicated to service the core host when the host name is associated with an enterprise name. The method also includes directing the resolution query to a local domain name system server when the host name is associated with a public service provided by the public host. A system to perform the above method is also provided.

公开(公告)号：US20230136635A1

公开(公告)日：2023-05-04

申请号：US17515125

申请日：2021-10-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Abhinesh Mishra ,  Isaac Theogaraj ,  Prakash Chand Sharma

IPC: H04L12/24 ,  H04L12/28

Abstract: Systems and methods are provided for clustering network devices into cohorts. Next, the systems may determine a subset of the network devices between which tunnels are created, based on any of amounts of available memory, jitter, latency, packet loss, and average round trip time. The selective determination may include, determining to create a first tunnel between a first network device of the first cohort and a second network device within the first cohort, and a second tunnel between the first network device and a third network device within the second cohort, and determining not to create tunnels between first remaining network devices of the first cohort and the second set of network devices of the second cohort. The systems provision the tunnel and the second tunnel to transmit data.

公开(公告)号：US20210400015A1

公开(公告)日：2021-12-23

申请号：US17282911

申请日：2019-01-17

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Isaac Theogaraj ,  Venkatesan Marichetty

IPC: H04L29/12

Abstract: Systems and methods are provided for monitoring a connection state between a primary DHCP server and a secondary DHCP server, determining that a connection between the primary DHCP server and the secondary DHCP server has not been established within a first timeframe, establishing a partner-down operation state at one or more of the primary DHCP server and secondary DHCP server, and, during an established partner-down operation state, issuing/allocating short-term network address leases from one of the primary DHCP servers or secondary DHCP servers. Short-term network leases of the present disclosure may have a duration of between 1 second and 5 minutes.

公开(公告)号：US11082339B2

公开(公告)日：2021-08-03

申请号：US16158893

申请日：2018-10-12

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Sujeeth Padavala ,  Isaac Theogaraj ,  Amit Pingale

IPC: G06F15/16 ,  H04L12/721 ,  H04L29/12 ,  H04L29/06 ,  H04L12/841 ,  H04L12/803 ,  H04L12/727

Abstract: A method including receiving, in a controller, from a client device in a network, a resolution query specifying a host name, is provided. The method includes parsing the resolution query to determine whether the host name is associated with an core host or with a public host, and directing the resolution query to a remote domain name system server dedicated to service the core host when the host name is associated with an enterprise name. The method also includes directing the resolution query to a local domain name system server when the host name is associated with a public service provided by the public host. A system to perform the above method is also provided.

公开(公告)号：US11050644B2

公开(公告)日：2021-06-29

申请号：US16538339

申请日：2019-08-12

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Sanjay Kaniyoor Surendra Hegde ,  Isaac Theogaraj ,  Gopakumar Nambisan

IPC: H04L12/26 ,  G06F16/28 ,  H04L12/66

Abstract: An example network orchestrator of a SD-WAN is configured to classify, based on operating health information, each branch gateway of a cluster in an operating health class of a set of operating health classes. A bucketmap is generated based on the classifications of each branch gateway of the cluster. The bucket map may be transmitted to a leader branch gateway of the cluster. Each branch gateway may be reclassified in an operating health class. An updated bucketmap may be transmitted to a leader branch gateway.

公开(公告)号：US20200287976A1

公开(公告)日：2020-09-10

申请号：US16294388

申请日：2019-03-06

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Isaac Theogaraj ,  Manjunatha GS ,  Sivappirakasam Muthiah

IPC: H04L29/08 ,  H04L12/26 ,  G06N3/08 ,  G06N20/00 ,  H04L12/66 ,  G06F9/455

Abstract: A method including selecting, with a network orchestrator, a first virtual internet gateway (VIG) as a primary VIG for a branch gateway, is provided. The method includes selecting a second VIG as a secondary VIG for the branch gateway. The method includes monitoring roundtrip times for multiple packets between the primary VIG and the branch gateway, and between the secondary VIG and the branch gateway, and determining a first forecast roundtrip time associated with the connection between the primary VIG and branch gateway, as well as determining a second forecast roundtrip time associated with the connection between the secondary VIG and the branch gateway. The method includes selecting a new primary VIG based on the first forecast roundtrip time and the second forecast roundtrip time, and further based on a skew of active branches between the primary VIG and the secondary VIG.

公开(公告)号：US20190334866A1

公开(公告)日：2019-10-31

申请号：US16183947

申请日：2018-11-08

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Isaac Theogaraj ,  Reji Varghese ,  Sivappirakasam Muthiah

IPC: H04L29/06

Abstract: An end controller, comprising: a processing resource; and a memory resource storing machine-readable instructions to cause the processing resource to: receive, using internet protocol security (IPSec) messages, a plurality of subnetworks that form a route to a branch device via a branch gateway; transfer the plurality of subnetworks to a layer-2-layer-3 module; transfer the plurality of subnetworks to an open shortest path first (OSPF) module; and publish the plurality of subnetworks that form the route to the branch device to a core router using OSPF link state advertisements (LSAs).

公开(公告)号：US10425870B2

公开(公告)日：2019-09-24

申请号：US15795803

申请日：2017-10-27

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Isaac Theogaraj ,  Puneet Joshi ,  Shishir Verma ,  Sheausong Yang

IPC: H04W36/10 ,  H04L12/26 ,  H04L12/70 ,  G06F21/00 ,  H04L29/06 ,  H04W84/12 ,  H04W88/12 ,  H04L12/707 ,  H04L12/803 ,  H04W52/00 ,  H04L29/14 ,  H04L29/08 ,  G06F11/20 ,  H04W36/24 ,  H04W8/30

Abstract: A non-transitory computer readable medium comprising instructions which, when executed by one or more hardware processors, causes performance of operations comprising: analyzing, by a first network coordination device, at least one session of the client device for selected characteristics, the first network coordination device being the primary network coordination device for the client device; and providing, by the first network coordination device, current session information of the at least one session of the client device having the selected characteristics to the second network coordination device, the second network coordination device being the standby network coordination device for the client device is shown.