Network Device Dynamic Path Adjustment for Link Congestion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing distributed traffic engineering technologies face challenges in managing network congestion, as they rely on shortest path algorithms that do not adapt to changing link conditions, leading to increased link load and affected data flow transmission quality.
Innovation Solution
A network optimization method that involves monitoring communications links for abnormal states, adjusting metrics of data flows based on service level agreements (SLA) and priority information, and dynamically rerouting data flows to alleviate congestion and reduce link load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a shortest path algorithm is used to select transmission paths for data flows, then the transmission efficiency is improved, but when congestion occurs on the selected shortest path, the link load increases and data flow transmission quality deteriorates
Solution Approach 1:
The patent implements dynamic path adjustment by continuously monitoring link congestion status and automatically switching data flows between shortest path and alternative paths. The system dynamically changes transmission paths based on real-time network conditions, transforming the static shortest path selection into a dynamic adaptive process that resolves the contradiction between transmission efficiency and transmission quality
Solution Approach 2:
The patent changes the selection criterion from purely metric-based shortest path to a composite evaluation that includes congestion status. By introducing congestion level as a new parameter and adjusting the path selection based on this parameter, the system can switch between different paths to maintain both efficiency and quality, resolving the technical contradiction
2Ease of operation
If the transmission path is fixed based on shortest path algorithm, then the network operation is simple, but the system cannot adapt to changing link conditions and congestion
Solution Approach 1:
The patent implements self-service through automatic path selection and adjustment mechanisms. The network device autonomously monitors link conditions, evaluates alternative paths, and switches data flows without manual intervention. This self-service capability maintains operational simplicity while achieving adaptability to changing network conditions
Solution Approach 2:
The patent establishes a feedback mechanism where the system continuously monitors link congestion status and uses this information to adjust transmission paths. The feedback loop connects actual network conditions to path selection decisions, enabling the system to adapt to changing conditions while maintaining simple operation through automated control
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Embodiments of this application provide a network optimization method, a network optimization system, and a network device, and relate to the communications field. The method includes: A first network device adjusts, if it is detected that a communications link between the first network device and a second network device is in an abnormal state, a metric of at least one data flow received by the first network device; and the first network device selects a transmission path for the at least one data flow based on adjusted metric, and transmits the at least one data flow to the selected transmission path. In this way, load of the communications link is reduced, and the communications link is restored to a normal state.