Controlling registration floods in VoIP networks via DNS
US8761040B2 · kind B2 · utility
9Cited by
1References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 20, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Nov 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/006
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mechanism controls global synchronization, or registration floods, that may result when a large number of endpoints in a Voice over Internet Protocol (VoIP) network such as an Internet Protocol Multimedia Subsystem (IMS) come online simultaneously after a catastrophic failure. The mechanism allows the Domain Name System (DNS) infrastructure to efficiently control the overload condition by registering user end points with backup border elements, and by staggering and by randomizing the time-to-live (TTL) parameter in registrations with backup border elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.