Congestion control mechanism for SSCOP protocol
US6714516B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2000 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Feb 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5672
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A congestion control mechanism for use with a receiver in a telecommunications network using the Service Specific Connection Oriented Protocol (SSCOP). The receiver is disposed in an access network portion of the telecommunications network such that it receives messages from an aggregate portion of the network over an Access Network Interface (ANI) and from a plurality of users over User-Network Interfaces (UNIs) in a distribution network portion. Credit windows granted by the receiver to the transmitters for transmission of message frames are managed by the receiver when it experiences congestion. The congestion control method monitors buffer usage for ANI-based traffic and UNI-based traffic in the receiver by setting appropriate buffer use counters and timers. When the number of available buffers reaches certain predetermined threshold values, the receiver sends an indication to the transmitter to restrict its message transmit window, thereby throttling the message flow therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.