Method and apparatus for providing a single system image in a clustered environment
US7051115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2001 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jul 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/329
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of providing a single system image in a clustered environment. An internet protocol (IP) address is assigned as a cluster IP address. The cluster IP address is bound to a node in a cluster. A client request directed to the cluster IP address is received in the node. The node multicasts the request to all nodes in the cluster. A dynamically adjustable workload distribution function filters the request, wherein the function is configured to allow a single node to process the client request. A response to the request is obtained. A cluster media access control (MAC) address is inserted into the response and the response is sent from the single node to the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.