Network switch providing dynamic load balancing
US6208644A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Mar 12, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/568
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A network switch routes data transmissions between network stations, each data transmission including network addresses of the source and destination network stations. The network switch includes a set of input/output (I/O) ports each for receiving data transmissions from and transmitting data transmissions to a subset of the network stations. Each I/O port is identified by a "physical" port ID and a "logical" port ID. While each I/O port's physical port ID is unique, all I/O ports that can route data to the same subset of network stations share the same logical port ID. Each I/O port receiving a data transmission from a network station sends its logical port ID and the network addresses included in the data transmission to an address translation system. The address translation system uses data in the translation request to maintain a lookup table relating each subset of network addresses to a logical port ID identifying all I/O ports that communicate with network stations identified by that subset of network address. The address translation system responds to an address translation request by returning the logical port ID of all I/O ports that can send data transmissions to a dest…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.