Load-balancing via modulus distribution and TCP flow redirection due to server overload
US8488456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2012 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | May 10, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1025
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, switch, and/or computer program product routes IP packet flows. An Ethernet switch receives an IP packet flow. Each of the packets in the IP packet flow has a header that contains a same 5-tuple. A load balancing control engine determines whether servers in a group of servers are balanced in their utilization according to 5-tuple redirection rules contained in the load balancing control engine. In response to the load balancing control engine determining, according to the 5-tuple redirection rules, that the servers are balanced, the Ethernet switch routes the IP packet flow to the servers. 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.