Internet connection load balancing with direct access to balanced devices
US10686845B2 · kind B2 · utility
0Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Dec 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0807
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
SIP INVITE messages received at a load balancer are returned as SIP Redirect messages which are addressed to an access director and include additional information, such as a tracing token and a cryptographic token. When the access director receives the redirected SIP INVITE, the access director analyzes the included cryptographic token and passes the SIP INVITE if the cryptographic token is correct. This provides the needed access control function to allow the access directors to be directly accessed by the endpoints, rather than funneling all communications through the load balancer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.