Dual use rate policer and re-marking logic
US7123583B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2002 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Apr 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5636
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for performing rate policing and re-marking in a packet switched communications network that can be used to enforce and/or monitor Class of Services (CoS) contracts including terms for single or multiple classes of service. A switching system configured as an ingress node on the network includes a network switch and rate policing and re-marking logic. The switch receives a data packet transmitted on the network, extracts information from at least one header field of the packet including a CoS parameter, a primary flow ID established for the packet, and a packet byte count, and provides the extracted information to the rate policing/re-marking logic. Next, the rate policing/re-marking logic performs flow record and token bucket processing on the primary packet flow to determine whether the packets of the primary flow conform to the bandwidth requirements specified in the CoS contract. In the event the primary flow is a sub-flow of an aggregated packet flow, the logic also performs flow record and token bucket processing on the aggregated flow to determine whether the packets of the aggregated flow comply with the terms of the CoS contract. The logic then provides the token …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.