Method and apparatus for auto detection of AAL5 type frames
US6345037B2 · kind B2 · utility
11Cited by
32References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1997 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Dec 23, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5658
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In Asynchronous Transfer Mode (ATM) communications networks, certain congestion control features, such as Partial Packet Discard (PPD) and Early Packet Discard (EPD), operate on ATM cells that have been segmented from ATM Adaptation Layer #5 (AAL5) frames (packets). AAL5 frames are automatically detected by observing transitions of an indicator in the ATM cell header unique to AAL5 traffic. Automatic detection of AAL5 traffic allows enablement of packet discard techniques such as PPD and EPD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.