Failover mechanism for real-time packet streaming sessions
US7953883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2009 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1069
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are provided herein for failover streaming mechanisms. At a first device (e.g., a content router device) that is configured to interface with a plurality of streaming servers for real-time protocol packet streams, communications are configured with a client device and a first of the plurality of streaming servers associated with a streaming session from the first streaming server to the client device so that the first device receives client session control and session feedback messages associated with the streaming session and so that a packet stream associated with the streaming session transmitted by the first streaming server to the client device does not pass through the first device. The first device stores session state information comprising an address of the client device, streaming session identification information and data representing a current state of the streaming session at the client device derived from the client session control and session feedback messages. Upon detecting a failure of the first streaming server, the first device selects a second of the plurality of streaming servers for serving the streaming session previously served by the first stre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.