Adaptor for receiving and processing asynchronous transfer mode cells within a computer network
US5870628A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1996 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Jun 11, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5678
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A network adaptor for receiving and processing Asynchronous Transfer Mode cells within a computer network is disclosed. The network adaptor includes a raw cell buffer, a control table, several Direct Memory Access buffers, and a Direct Memory Access controller. The raw cell buffer is utilized for receiving Asynchronous Transfer Mode cells from the computer network. The control table includes a multiple of virtual circuit identifier entries. When a corresponding virtual circuit identifier of the Asynchronous Transfer Mode cell is found in one of the multiple of virtual circuit identifier entries within the control table, one of the several Direct Memory Access buffers is set to receive the Asynchronous Transfer Mode cell. The Direct Memory Access controller is then utilized for initiating a Direct Memory Access transfer of the Asynchronous Transfer Mode cell from one of the several Direct Memory Access buffers when a pre-set threshold for Asynchronous Transfer Mode cell transfer is reached, such that Asynchronous Transfer Mode cell processing performance may be optimized to a receiving computer system in which the network adaptor is installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.