Load balancing server and system
US8095681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2006 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Jul 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1029
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
When load balancing (LB) for SIP message communication is performed across multiple SIP servers, the number of messages that must be processed by an LB server is reduced. The SIP LB server includes an LB management means which, if the previous hop source of a received request message is a terminal in the local domain, determines which SIP server to serve the terminal, and a redirect function which notifies the message source terminal in the local domain of the address of the serving SIP server. The SIP LB server further includes an LB management table which, if the previous hop source of a received request message is other than a terminal in the local domain, is searched to find a SIP server serving communication with a destination terminal in the local domain, and a stateless forwarding function which statelessly forwards the received request message to the resolved SIP server address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.