Method and apparatus for implied specification of service quality in network

Abstract

The device has a scheduling module for scheduling packets in a queue as a function of a priority. The scheduling is performed based on analyzing an incoming bit rate of flows relative to a fair bit rate and a fair queuing with priority algorithm. A fair bit rate value represents the bit rate achieved by a data flow. A priority load value is transmitted in a certain time period divided by duration of that time period. An Independent claim is also included for a method of treating packets of flows on a network link.

Description

technical field [0001] The invention relates to the architecture of packet switched networks and the management of quality of service in this architecture. Background technique [0002] The Internet is a multi-service tool adapted to support a wide range of services and applications. There are two main classes of traffic on the Internet: real-time (streaming) traffic, usually generated by audio and video applications, and data (elastic) traffic corresponding to the transfer of digital documents. The quality of service requirements of real-time traffic correspond to the need to protect the signal: bit rate variations characterizing the signal generated by the source must be protected as the signal propagates through the network. The service quality of the data business is measured by the delivery time of the document. This, or equivalently the average bit rate achieved during the transition, will depend on the entire communication channel from source to destination. The qu...

AI Technical Summary

Problems solved by technology

[0037] - over-reservation, usually employed in order to compensate for the fact that users overestimate their traffic, resulting in a lack of any real guarantee,

[0038] - There is a problem with charging: when over-reserving, the charging based on (business agreement) business parameters is not directly related to the cost of the call, but the cost of the call depends on the actual traffic volume sent; when strictly guaranteed, it is not related to the reserved Charges related to reserved resources (bandwidth, memory) risk being banned

[0042] - the management business unit by type and by user is still complex (SLA management, policy server, business parameter signaling, etc.),

[0043] - low-priority types of traffic face the same disadvantages as traffic in a best-effort architecture (performance crashes when congested, no protection against malicious users),

[0044] - There is a problem with charging for different types of services: price differences are necessary but may not be understood by users if there is no significant difference in quality,

[0056] - consideration of quality of service and traffic parameters depending on the flow leads to complex implementations, which may cause deployment problems,

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