Multiple protocol checkpoint management
US7139831B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Sep 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/1868
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Data is distributed over a network using a first network protocol, for example, a non-reliable protocol. The non-reliable protocol (e.g., multicast) is used to distribute the data from a host system to multiple target systems with reduced overhead as compared to typical reliable protocols. Portions of the data that are not received by one or more of the target systems are requested and transmitted via a second network protocol (e.g., hypertext transport protocol, or HTTP). In one embodiment, the target systems maintain a checkpoint management service that determines the portions of data not received. In an alternative embodiment, target systems evaluate data received to determine whether a portion of the transmitted data was not received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.