Service Packet Transmission With Quantified Path Attributes
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Solution Overview
Problem
Existing segment routing technologies lack the ability to accurately select forwarding paths that meet specific traffic requirements due to insufficient granularity in determining service level agreements, leading to inefficiencies in service packet transmission.
Innovation Solution
A method and device that provide attribute information with quantitative values for each transmission path, allowing forwarding devices to select paths that meet traffic requirements by considering attributes such as bandwidth, latency, and packet loss rate with precise amounts or ranges, ensuring accurate path selection and resource reservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If color indication values are used in segment routing policies, then forwarding path selection is simplified, but path selection accuracy deteriorates due to insufficient granularity
Solution Approach 1:
The patent extends the traditional color indication value by adding quantitative attribute information (bandwidth, latency, packet loss rate) to each color. This transforms the path selection from qualitative color matching to quantitative requirement verification, resolving the contradiction between simplicity and accuracy.
Solution Approach 2:
The patent segments the path selection process into two independent stages: first matching color indications for broad category selection, then verifying quantitative attributes for precise path determination. This segmentation maintains operational simplicity while improving selection accuracy.
2Measurement precision
If quantitative attribute information is added to segment routing policies, then path selection accuracy is improved, but information processing complexity increases
Solution Approach 1:
The patent performs preliminary processing by pre-calculating and tagging quantitative attributes (bandwidth, latency, packet loss rate) for each forwarding path before packet transmission. This preliminary action reduces real-time processing complexity while maintaining high selection accuracy.
Solution Approach 2:
The patent implements dynamic attribute verification where the forwarding device adapts its selection process based on traffic requirements. The system dynamically adjusts which attributes to verify and in what order, optimizing processing efficiency while ensuring accurate path selection.
3Reliability
If fine-grained traffic requirements are implemented, then service quality is improved, but resource allocation overhead increases
Solution Approach 1:
The patent enables forwarding paths to self-report their available resources (bandwidth, latency, packet loss rate) and allows traffic to self-select appropriate paths based on requirements. This self-service mechanism reduces centralized resource allocation overhead while ensuring fine-grained service quality.
Data Source
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AI summary
This application discloses a service packet transmission method. The method includes: A control device delivers respective attribute information of at least two transmission paths to a first forwarding device. In this way, after obtaining traffic requirement information, the first forwarding device may determine, based on the traffic requirement information and the respective attribute information of the transmission paths, a first transmission path that meets a traffic requirement. Then, the first transmission path sends a received service packet to a second forwarding device through the first transmission path. Technical solutions of this application can provide attributes of paths and a quantitative value corresponding to each attribute. In this way, an appropriate path that meets a traffic requirement can be accurately selected.