DATA SYNCHRONIZATION SYSTEM AND METHODS IN A NETWORK USING A HIGHLY-AVAILABLE KEY-VALUE STORAGE SYSTEM

• US 20160057219A1
• Filed: 08/19/2014
• Published: 02/25/2016
• Est. Priority Date: 08/19/2014
• Status: Active Grant

• Current Assignee: Ciena Corporation
• Original Assignee: Ciena Corporation
• Inventors: KORE, Mallikarjunappa, HTAY, Aung, MALLI, Kumaresh
• Granted Patent: US 9,860,314 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54

Abstract

A data synchronization method, in a network element operating in a network, includes generating an event at the network element that needs to be synchronized with other devices in the network; based on assigned tokens for the network element, generating a row key for the event; and providing the row key to a Highly-Available (HA) key-value storage system for synchronization therewith, wherein the HA key-value storage system includes a plurality of nodes including the network element and the other devices.

Claims

1. A data synchronization method, in a network element operating in a network, the method comprising:

generating an event at the network element that needs to be synchronized with other devices in the network;

based on assigned tokens for the network element, generating a row key for the event; and

providing the row key to a Highly-Available (HA) key-value storage system for synchronization therewith, wherein the HA key-value storage system includes a plurality of nodes comprising the network element and the other devices.

2. The data synchronization method of claim 1, further comprising:

installing a HA key-value storage system plugin on the network element; and

calculating and assigning tokens for the network element, wherein the tokens are based on node key generated from a node identifier of the network element and N-control bits in most significant bits of the key.

3. The data synchronization method of claim 1, wherein the row keys are calculated and assigned for node control plane events, line control plane events, and link control plane events.

4. The data synchronization method of claim 1, further comprising:

registering, a client helper task operating at the network element, with a Common Object Request Broker Architecture (CORBA) Manager on the network element to receive the event relating to a node, a line, or a link event.

5. The data synchronization method of claim 1, wherein the other devices comprise a Software Defined Networking (SDN) controller, and wherein the network utilizes a control plane.

6. The data synchronization method of claim 5, wherein the SDN controller synchronizes data with the network element through the HA key-value storage system, without polling the network element.

7. The data synchronization method of claim 5, wherein the HA key-value storage system further includes any of a Network Management System, an Element Management System, a second SDN controller, and an application.

8. The data synchronization method of claim 1, wherein the HA key-value storage system utilizes the assigned tokens to determine where to synchronize data.

9. The data synchronization method of claim 1, wherein the assigned tokens are hash based tokens generated to avoid duplication in the nodes.

10. A network element, operating in a network, with data synchronization, the network element comprising:

at least one port forming a link in the network; and

a controller communicatively coupled to the at least one port, and wherein the controller is further configured to

generate an event that needs to be synchronized with other devices in the network,

based on assigned tokens for the network element, generate a row key for the event, and

provide the row key to a Highly-Available (HA) key-value storage system for synchronization therewith, wherein the HA key-value storage system includes a plurality of nodes comprising the network element and the other devices.

11. The network element of claim 10, wherein the controller is further configured to:

install a HA key-value storage system plugin on the network element; and

calculate and assign tokens based on node key generated from a node identifier of the network element.

12. The network element of claim 10, wherein the assigned tokens are applied for node control plane events, line control plane events, and link control plane events.

13. The network element of claim 10, wherein the controller is further configured to:

register, a client helper task operating on the controller, with a Common Object Request Broker Architecture (CORBA) Manager on the controller to receive the event relating to a node, a line, or a link event and generating row key for the data that needs to be synchronized.

14. The network element of claim 10, wherein a Software Defined Networking (SDN) controller synchronizes data with the network element through the HA key-value storage system, without polling the network element.

15. The network element of claim 10, wherein the other devices include any of a Network Management System, an Element Management System, a Software Defined Networking (SDN) controller, and an application.

16. The network element of claim 10, wherein the HA key-value storage system utilizes the assigned tokens to determine where to synchronize data.

17. The network element of claim 11, wherein the assigned tokens are hash based tokens generated to avoid duplication in the nodes.

18. A Software Defined Networking (SDN) controller communicatively coupled to a control plane network, the controller comprising:

a network interface;

a data store;

a processor communicatively coupled to the network interface and the data store; and

memory storing computer executable instructions, and in response to execution by the processor, the computer executable instructions cause the processor to

receive, via the network interface, a row key from a network element operating in a Highly-Available (HA) key-value storage system with the SDN controller, wherein the row key is computed based on assigned tokens to the network element, and

store, in the data store, data in the row key for the network element;

wherein the HA key-value storage system includes a plurality of nodes comprising the network element and the SDN controller.

19. The Software Defined Networking (SDN) controller of claim 19, wherein the SDN controller synchronizes data with the network element through the HA key-value storage system, without polling the network element.

20. The Software Defined Networking (SDN) controller of claim 19, wherein the assigned tokens are hash based tokens generated to avoid duplication in the nodes.