Method for removing ATM cells from an ATM communications device
US6847612B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1999 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Feb 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5638
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A decision algorithm for discarding frames is disclosed. A method is disclosed including the application of rules which results in the limited use of the Partial Packet Discard (PPD) method and results in the ATM cells which are not assigned to a frame not being discarded. According to the described Early Packet Discard (EPD) system, all the cells in a frame, from the first cell to the last cell, are removed from an ATM communications device upon arrival in a queue. The EPD system results in no residual cells remaining from a damaged frame or from a frame which is to be removed for other reasons. Additionally, each connection has a Maximum Frame Size (MFS), which is measured in cells and depends on the connection. Thus, increased space is available for other ATM cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.