Packet relay control method packet relay device and program memory medium
US6175874A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1998 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Feb 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1023
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A control method and apparatus for distributing packets to nodes in a cluster, while realizing a single system image at the network address level and such as to be able to simply and dynamically change the distribution destination, conditions of distribution, and the like. A pattern matching unit in a relay device receives packets coming from a packet receiving device. The packets have an address which represents a cluster. Using a distribution control table, pattern matching is performed based on the transmission origin address, transmission origin port, destination port and the like of this packet. A hash calculation unit, from the matching result, performs a hash calculation obtaining the argument of a hash function. A destination node extraction unit sets the destination node of the packet based on the hash result, using the distribution control table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.