Method and system for storing load balancing information with an HTTP cookie
US6374300B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1999 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Jul 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1027
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for inserting and examining Cookies in the data streams of HTTP connections for the purpose of persistently directing HTTP connections to the same destination. The present invention enables a network transmission device, e.g., a router or controller, to reliably and efficiently direct subsequent HTTP connections from the same client to the same server (destination) for accessing the requested resources. There are four modes for employing the Cookie to persistently direct HTTP connections. The associative mode inserts a Cookie into an HTTP response that uniquely identifies the client so that when a client's subsequent HTTP request is compared to a table, the HTTP request will be routed to a previously selected destination associated with the client. The passive mode inserts Cookie information into an HTTP response that uniquely identifies a previously selected destination such as a node server so that when a client's subsequent HTTP request is examined, it will be provided to the previously selected destination. In the rewrite mode, a network transmission device manages the destination information that is rewritten over blank Cookie information generated by the d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.