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US 9,806,911 B2Granted
Distributed virtual gateway appliance
AssigneeInternational Business Machines Corporation
InventorsKai Hong Du, Xiao Jian Nie, Shashi Pratap Singh, Xiao Li Xu, Ying Lin Xu
Life of this patent
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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.
Claims20
A method for providing a distributed virtual gateway for Network Virtualization over a Layer 3 (NVO3) network, the method comprising:
- forming a gateway stack (GS) comprising at least three (3) nodes, wherein the GS is an instance of the distributed virtual gateway, wherein the GS is formed amongst the nodes pursuant to a gateway stack protocol (GSP) running on each of the nodes, such that the GS provides Layer 2 or Layer 3 gateway services in a fail-safe manner by utilizing all of the nodes in the GS, wherein the formed GS has a master, a backup, and at least one slave respectively elected for each of the nodes, and wherein the master communicates with a controller and a policy server via a management interface, and the GS is coupled to a switch via a data interface;
- registering the GS with the controller and the policy server such that the controller keeps GS registration information data, and the policy server keeps policy server list information data;
- configuring the nodes of the registered GS such that all nodes are enabled to autonomously process an inbound NVO3 data packet having a destination address known to a receiving node;
- and
- operating the GS, responsive to an associated type of a data packet and respective changes in an environment of the GS,
- wherein the data interface between the GS and the switch is aggregated by a static trunk such that the switch evenly distributes inbound data packets amongst the nodes of the GS.
3 more elements
A computer program product comprising:
- a computer readable storage medium readable by one or more processor and storing instructions for execution by the one or more processor for performing a method for providing a distributed virtual gateway for Network Virtualization over Layer 3 (NVO3) network, the method comprising:
- forming a gateway stack (GS) comprising at least three (3) nodes, wherein the GS is an instance of the distributed virtual gateway, wherein the GS is formed amongst the nodes pursuant to a gateway stack protocol (GSP) running on each of the nodes, such that the GS provides Layer 2 or Layer 3 gateway services in a fail-safe manner by utilizing all of the nodes in the GS, wherein the formed GS has a master, a backup, and at least one slave respectively elected for each of the nodes, and wherein the master communicates with a controller and a policy server via a management interface, and the GS is coupled to a switch via a data interface;
- registering the GS with the controller and the policy server such that the controller keeps GS registration information data, and the policy server keeps policy server list information data;
- configuring the nodes of the registered GS such that all nodes are enabled to autonomously process an inbound NVO3 data packet having a destination address known to a receiving node;
- and
- operating the GS, responsive to an associated type of a data packet and respective changes in an environment of the GS,
- wherein the data interface between the GS and the switch is aggregated by static trunk such that the switch evenly distributes inbound data packets amongst the nodes of the GS.
4 more elements
A system comprising:
- a memory;
- one or more processor in communication with memory;
- and
- program instructions executable by the one or more processor via the memory to perform a method for providing a distributed virtual gateway for Network Virtualization over Layer 3 (NVO3) network, the method comprising:
- forming a gateway stack (GS) comprising at least three (3) nodes, wherein the GS is an instance of the distributed virtual gateway, wherein the GS is formed amongst the nodes pursuant to a gateway stack protocol (GSP) running on each of the nodes, such that the GS provides Layer 2 or Layer 3 gateway services in a fail-safe manner by utilizing all of the nodes in the GS, wherein the formed GS has a master, a backup, and at least one slave respectively elected for each of the nodes, and wherein the master communicates with a controller and a policy server via a management interface, and the GS is coupled to a switch via a data interface;
- registering the GS with the controller and the policy server such that the controller keeps GS registration information data, and the policy server keeps policy server list information data;
- configuring the nodes of the registered GS such that all nodes are enabled to autonomously process an inbound NVO3 data packet having a destination address known to a receiving node;
- and
- operating the GS, responsive to an associated type of a data packet and respective changes in an environment of the GS,
- wherein the data interface between the GS and the switch is aggregated by static trunk such that the switch evenly distributes inbound data packets amongst the nodes of the GS.
7 more elements
Dependencies are inferred from the claim text.