Transparent migration of TCP based connections within a network load balancing system
US8244864B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2001 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/162
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for enhancing a network load balancing system's ability to distribute connection information and data amongst the plurality of nodes within the system is presented. A client connection request is redirected to a load balancing service residing on a receiving node by modifying the destination port information contained within the packet. The receiving node can be any node within the load balancing system, and is determined from amongst the plurality of nodes that comprise the system by a conventional means. A transparent connection is then established between the client and the load balancing service residing on the node by modifying subsequently transmitted connection setup packets sent by the receiving node and the client. A target node is determined according to resource specific information contained within initially received data packets from the client. The target node determined this way could be the local node or another node. If it is another node, the connection parameters and the data received over the connection are passed to a peer load balancing service residing on the target node. The target load balancing service then instructs TCP/IP to create a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.