Load-balancing via modulus distribution and TCP flow redirection due to server overload
US8243598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2010 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1025
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, system and/or computer program product route IP packet flows. An Ethernet switch is coupled to a load balancing control engine, which contains load balancing logic that is logically isolated from the Ethernet switch. The Ethernet switch, which routes IP packet flows to servers, receives an IP packet flow. The load balancing control engine determines if the servers are balanced in their workloads. In response to the load balancing control engine determining that the servers are balanced, the Ethernet switch routes the IP packet flow to the servers without the Ethernet switch directly receiving any feedback from the servers regarding their workloads. In response to the load balancing control engine determining that the servers are unbalanced, the load balancing control engine instructs the Ethernet switch to redirect the IP packet flow to a server that is relatively less busy than other servers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.