Adaptive Bandwidth Partitioning for Latency-Based QoS
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Solution Overview
Problem
Existing network devices struggle to maintain desired Quality of Service (QoS) levels during network congestion, as configured partition parameters may not achieve intended performance due to factors outside their control.
Innovation Solution
An adaptive partitioning mechanism that adjusts minimum bandwidth settings in response to observed latency conditions, using a latency threshold to modulate bandwidth allocations and ensure QoS levels are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If partition parameters are configured to guarantee minimum bandwidth, then QoS levels can be maintained, but the device cannot adapt to changing network conditions such as latency variations
Solution Approach 1:
The patent applies dynamics by making the partition bandwidth allocation adaptive rather than static. The network device continuously monitors latency conditions and dynamically adjusts the bandwidth allocation to partitions based on current network state, allowing the system to respond to changing conditions while maintaining QoS guarantees when needed.
Solution Approach 2:
The patent implements feedback mechanisms where the network device monitors latency conditions and uses this information to adjust partition parameters. The system measures actual latency, compares it against thresholds, and modifies bandwidth allocation accordingly, creating a closed-loop control system that adapts to network conditions.
2Reliability
If minimum bandwidth is allocated to partitions, then QoS can be guaranteed, but bandwidth utilization efficiency decreases during low congestion periods
Solution Approach 1:
The system dynamically adjusts minimum bandwidth allocations based on actual network congestion levels. During low congestion periods, the allocated bandwidth is reduced to improve overall utilization efficiency, while during high congestion periods, the bandwidth is increased to maintain QoS guarantees, thus optimizing the trade-off between reliability and efficiency.
Solution Approach 2:
The patent changes the bandwidth parameter of partitions dynamically based on latency conditions. By adjusting this critical parameter in response to measured latency, the system optimizes bandwidth utilization while maintaining QoS when necessary, avoiding the constant allocation of minimum bandwidth regardless of network state.
3Device complexity
If partition parameters are fixed at configuration time, then device complexity is reduced, but the system cannot respond to network congestion or latency issues
Solution Approach 1:
The network device performs self-service by automatically monitoring its own latency conditions and adjusting partition parameters without external intervention. This self-adjustment capability maintains QoS performance under congestion while keeping the configuration management relatively simple, as the device autonomously responds to network conditions.
Solution Approach 2:
The system uses feedback from latency measurements to automatically adjust partition parameters. This closed-loop approach allows the device to maintain QoS under congestion without requiring complex manual configuration, as the feedback mechanism guides the automatic adjustments based on actual network performance.
Data Source
AI summary
Methods, apparatuses and systems directed to an adaptive partitioning mechanism responsive to observed latency conditions in a communications network. Embodiments of the present invention can be configured to adapt to changing network conditions and ensure that selected network applications meet desired QoS levels. In one implementation, the present invention provides a mechanism that adjusts the minimum bandwidth setting corresponding to a given partition in response to observed latency. According to one implementation, a latency threshold is configured relative to local queuing latency or a latency metric corresponding to the network itself. A process modulates the minimum bandwidth setting associated with one or more partitions in response to observed latency relative to the configured threshold.