公开(公告)号：US11128494B2

公开(公告)日：2021-09-21

申请号：US16804297

申请日：2020-02-28

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Kai Hong Du ,  Xiao Jian Nie ,  Shashi Pratap Singh ,  Xiao Li Xu ,  Ying Lin Xu

IPC: H04L12/66 ,  H04L12/947 ,  H04L12/721 ,  H04L12/931 ,  H04L12/24

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: a gateway stack that includes a master, a backup, and at least one slave amongst nodes of the GS based on an election pursuant to a gateway stack protocol. The gateway stack provides gateway services for a Network Virtualization over Layer 3 (NVO3) network in a fail-safe manner by utilizing all of the nodes in the gateway stack. A data interface between the gateway stack and a switch is aggregated to evenly distribute inbound packets amongst the nodes of the gateway stack.

公开(公告)号：US09806911B2

公开(公告)日：2017-10-31

申请号：US14929745

申请日：2015-11-02

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Kai Hong Du ,  Xiao Jian Nie ,  Shashi Pratap Singh ,  Xiao Li Xu ,  Ying Lin Xu

IPC: H04L12/66 ,  H04L12/947 ,  H04L12/721 ,  H04L12/931

CPC classification number: H04L12/66 ,  H04L41/5054 ,  H04L41/5077 ,  H04L45/66 ,  H04L49/25 ,  H04L49/503

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: providing a distributed virtual gateway for Network Virtualization over Layer 3 (NVO3) network. A gateway stack having three or more nodes is implemented as a distributed virtual gateway, providing Layer 2 or Layer 3 gateway services in a fail-safe manner. Nodes of the gateway stack are configured to autonomously process and forward inbound NVO3 data packets with known destination addresses without engaging a master of the gateway stack.

公开(公告)号：US20170126436A1

公开(公告)日：2017-05-04

申请号：US14929745

申请日：2015-11-02

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Kai Hong Du ,  Xiao Jian Nie ,  Shashi Pratap Singh ,  Xiao Li Xu ,  Ying Lin Xu

IPC: H04L12/66 ,  H04L12/721 ,  H04L12/931 ,  H04L12/947

CPC classification number: H04L12/66 ,  H04L41/5054 ,  H04L41/5077 ,  H04L45/66 ,  H04L49/25 ,  H04L49/503

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: providing a distributed virtual gateway for Network Virtualization over Layer 3 (NVO3) network. A gateway stack having three or more nodes is implemented as a distributed virtual gateway, providing Layer 2 or Layer 3 gateway services in a fail-safe manner. Nodes of the gateway stack are configured to autonomously process and forward inbound NVO3 data packets with known destination addresses without engaging a master of the gateway stack.

公开(公告)号：US10686627B2

公开(公告)日：2020-06-16

申请号：US16355037

申请日：2019-03-15

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Kai Hong Du ,  Xiao Jian Nie ,  Shashi Pratap Singh ,  Xiao Li Xu ,  Ying Lin Xu

IPC: H04L12/66 ,  H04L12/947 ,  H04L12/721 ,  H04L12/931 ,  H04L12/24

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: a gateway stack that includes a master, a backup, and at least one slave amongst nodes of the GS based on an election pursuant to a gateway stack protocol. The gateway stack provides gateway services for a Network Virtualization over Layer 3 (NVO3) network in a fail-safe manner by utilizing all of the nodes in the gateway stack. A data interface between the gateway stack and a switch is aggregated to evenly distribute inbound packets amongst the nodes of the gateway stack.

公开(公告)号：US10277423B2

公开(公告)日：2019-04-30

申请号：US15709665

申请日：2017-09-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Kai Hong Du ,  Xiao Jian Nie ,  Shashi Pratap Singh ,  Xiao Li Xu ,  Ying Lin Xu

IPC: H04L12/66 ,  H04L12/947 ,  H04L12/721 ,  H04L12/931 ,  H04L12/24

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: providing a distributed virtual gateway for Network Virtualization over Layer 3 (NVO3) network. A gateway stack having three or more nodes is implemented as a distributed virtual gateway, providing Layer 2 or Layer 3 gateway services in a fail-safe manner. Nodes of the gateway stack are configured to autonomously process and forward inbound NVO3 data packets with known destination addresses without engaging a master of the gateway stack.