Telecom Admission Control via Global Bandwidth Allocation
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Solution Overview
Problem
Existing data communication networks face issues with unpredictable network behavior, unfair resource distribution, and inability to guarantee quality of service due to collisions and lack of global information-based admission control mechanisms, leading to suboptimal resource utilization.
Innovation Solution
A method for controlling data traffic admission in telecommunications networks that uses global traffic statistics to allocate bandwidth proportionally across flows, ensuring no collisions and optimizing resource utilization by dynamically adjusting rate controls based on actual bandwidth demands and Service Level Agreements (SLAs).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If statistical multiplexing is used to maximize network bandwidth utilization, then network resource utilization is improved, but network behavior becomes erratic and unpredictable due to collisions
Solution Approach 1:
The system performs preliminary admission control decisions based on global network state information before traffic enters the network. By calculating available bandwidth and predicting future network states, the system admits or rejects traffic flows in advance, preventing collisions and ensuring predictable network behavior while maintaining high bandwidth utilization.
Solution Approach 2:
The system continuously monitors global network traffic statistics and uses this feedback to dynamically adjust admission control decisions. By incorporating real-time network state information into the admission control algorithm, the system adapts to changing conditions while maintaining predictable and reliable network performance.
2Productivity
If unrestricted access is provided to all ingress nodes, then network resource utilization is maximized, but resource distribution becomes unfair among different ingress nodes
Solution Approach 1:
The system applies different admission control policies to different ingress nodes based on their specific characteristics, distances to egress nodes, and local network conditions. By tailoring the admission decisions to local requirements rather than applying a uniform policy, the system achieves both high resource utilization and fair distribution among nodes.
3Device complexity
If per-hop statistical admission control is used, then local resource management is simplified, but the system cannot respond to global dynamic changes and requires over-engineering to meet peak demand
Solution Approach 1:
The system creates a unified admission control mechanism that simultaneously handles both local and global network considerations. By using global network state information available at all nodes, the system achieves coordinated resource management across the entire network while maintaining relatively simple per-node implementation through standardized algorithms.
Data Source
AI summary
A method and system for controlling admission of data traffic to a telecommunications network having an allocatable bandwidth, at least one physical link and at least two pre-defined flows over the link, the method including receiving input data of each of the at least one physical links in the network, the data including for each of the links a wire rate bandwidth, a provisioned committed bandwidth, and a provisioned best effort bandwidth; calculating a bandwidth available for best effort from the wire rate bandwidth and the provisioned committed bandwidth; and allocating the bandwidth available for best effort between the flows substantially proportionally to the provisioned best effort bandwidth.