Central QoS Regulator for LAN-WAN Traffic Engineering
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Solution Overview
Problem
Existing methods for regulating Quality of Service (QoS) between local and wide area networks are inadequate in managing dynamic requirements, particularly in uncontrolled segments like the Internet, as they lack direct monitoring and objective feedback mechanisms.
Innovation Solution
Implementing a central Quality of Service regulation at the gateway of a local area network, utilizing feedback from applications to apply traffic engineering measures such as traffic shaping and prioritization, eliminating the need for remote gateways in back-end systems and continuous configuration of network devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Quality of Service regulation is implemented at multiple remote gateways in back-end systems, then QoS can be managed locally at each endpoint, but device complexity and configuration overhead increase significantly
Solution Approach 1:
The patent extracts the QoS regulation function from multiple distributed gateways and concentrates it in a single central Quality of Service Regulator. This central regulator receives feedback from applications and generates traffic engineering rules that are then distributed to gateways, eliminating the need for complex configuration at each remote gateway while maintaining effective QoS management.
Solution Approach 2:
The central Quality of Service Regulator serves multiple functions: it collects feedback from various applications, analyzes QoS requirements, generates traffic engineering rules, and distributes these rules to multiple gateways. This single universal device replaces the need for multiple specialized QoS management systems at different locations.
2Adaptability or versatility
If continuous configuration of network devices is performed, then QoS rules can be updated in real-time, but operational overhead and time consumption increase
Solution Approach 1:
The patent implements a feedback mechanism where applications continuously report their QoS status and requirements to the central regulator. Based on this feedback, the regulator automatically adjusts traffic engineering rules and distributes them to gateways, enabling real-time QoS adaptation without manual configuration intervention and reducing operational overhead.
Solution Approach 2:
The system enables self-service QoS management where the central regulator autonomously monitors application performance, detects QoS violations, and automatically generates and distributes appropriate traffic engineering rules. This eliminates the need for continuous manual configuration while maintaining dynamic adaptability to changing QoS requirements.
3Ease of operation
If QoS regulation is implemented without application feedback, then gateway control is simplified, but measurement precision and objective monitoring capability are reduced
Solution Approach 1:
The patent introduces an intermediary feedback mechanism where applications act as mediators between the actual QoS conditions and the central regulator. Applications provide objective measurements and status information about their performance, enabling the regulator to make informed decisions while keeping gateway control simple. The feedback channel serves as the intermediary that bridges monitoring needs with centralized control.
Data Source
AI summary
A method is provided for regulating a Quality of Service in a local area network, including the following: a Quality of Service regulator receives at a gateway of the local area network, from at least one Quality of Service checker, a status report concerning a distributed application; the Quality of Service regulator establishes, based on the status report, traffic engineering rules pertaining to the gateway; and the Quality of Service regulator transmits the traffic engineering rules to a Quality of Service controller. A corresponding device, a corresponding computer program and a corresponding storage medium are also provided.