Adaptive stateless load balancing
US9379982B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2013 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Jul 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1034
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In general, techniques are described for load balancing, with a service node, packet flows using stateless load balancing that adapts to server failure to provide flow affinity to initially selected servers for the duration of respective flows. In one example, service node device applies stateless load balancing to packet flows to distribute the flows among a plurality of servers. The service node determines a failure of a failed server and then receives an initial packet of a packet flow from the packet flows and forwards the initial packet to an active server. The service node generates a mapping of the packet flow to the active server, determines a recovery of the failed server, receives a subsequent packet of the packet flow, and forwards the subsequent packet of the packet flow to the active server based at least on the mapping of the packet flow to the active server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.