Ethernet Ring Aggregate Bandwidth Determination
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Solution Overview
Problem
Current network elements have limited information about available bandwidth parameters in ring networks, making it difficult to configure traffic management effectively, especially during node or segment failures, which can lead to congestion and Quality of Service (QoS) issues.
Innovation Solution
A method to determine aggregate bandwidth requirements for Ethernet ring networks based on a priori knowledge of topology, path utilization, and failure protection scenarios, independent of real-time data traffic rates, using a bandwidth allocation database to configure and reconfigure traffic management parameters automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If network elements use limited a priori information for traffic management configuration, then device complexity is reduced, but traffic management efficiency and QoS reliability deteriorate
Solution Approach 1:
The patent applies preliminary action by pre-calculating aggregate bandwidth requirements using a priori information about network topology, path utilization, and failure protection scenarios. The bandwidth calculation is performed before actual traffic management configuration, allowing network elements to be pre-configured with accurate bandwidth parameters without requiring complex real-time calculations or additional measurement infrastructure.
2Loss of information
If network elements lack accurate bandwidth parameter information, then information loss is reduced, but traffic congestion and QoS failures increase
Solution Approach 1:
The patent introduces an intermediary mechanism - the aggregate bandwidth calculation method that uses a priori information as an intermediate step. This intermediary calculation synthesizes topology, path utilization, and failure scenario data to produce accurate aggregate bandwidth parameters, which then serve as reliable input for traffic management configuration without requiring direct real-time monitoring of actual traffic rates.
3Measurement precision
If real-time traffic rate monitoring is implemented for accurate bandwidth determination, then measurement precision improves, but device complexity and energy consumption increase
Solution Approach 1:
The patent eliminates the need for real-time traffic rate monitoring by performing bandwidth requirement calculations in advance using a priori information. The aggregate bandwidth is determined before traffic management configuration based on known topology, path utilization, and failure protection scenarios, removing the complexity of continuous real-time measurement and monitoring infrastructure.
Data Source
AI summary
A functionality and method for determining aggregate data transit bandwidth requirements for the nodes of an Ethernet ring network for traffic management and to improve the operation, efficiency, and Quality of Service. An aggregate bandwidth database is produced, based on a priori knowledge of the ring network, including topology, path utilization, bandwidth sharing, and failure protection scenarios. Aggregate bandwidth requirements are determined independent of the actual real-time data traffic rates, and without requiring any actual real-time data traffic rate information. Aggregate bandwidth is automatically determined upon configuration or reconfiguration of the ring network.