Method, system and router providing active queue management in packet transmission systems
US7139281B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2000 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Apr 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13389
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of active queue management, for handling prioritized traffic in a packet transmission system, the method including: providing differentiation between traffic originating from rate adaptive applications that respond to packet loss, wherein traffic is assigned to one of at least two drop precedent levels in-profile and out-profile; preventing starvation of low prioritized traffic; preserving a strict hierarchy among precedence levels; providing absolute differentiation of traffic; and reclassifying a packet of the traffic of the packet transmission system, tagged as in-profile, as out-profile, when a drop probability assigned to the packet is greater than a drop probability calculated from an average queue length for in-profile packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.