BGP-Intent Route Metrics for Efficient Transmission Path Selection
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Solution Overview
Problem
The efficiency of establishing transmission paths for BGP-intent routes is decreased due to the static configuration of intent-templates that are not necessarily associated with specific end-to-end paths and can serve multiple paths, leading to inefficiencies in path establishment.
Innovation Solution
The BGP-intent route is enhanced by carrying metric type, metric, and metric credit information, allowing for more flexible and accurate establishment of transmission paths by BGP speakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If static intent-template configuration method is used, then configuration simplicity is maintained, but path establishment efficiency decreases
Solution Approach 1:
The patent introduces dynamic metric credit adjustment mechanisms where BGP speakers can modify metric credit values based on real-time network conditions. The metric credit is no longer static but can be dynamically adjusted to reflect current network state, enabling efficient path establishment without complex reconfiguration.
Solution Approach 2:
The patent changes the parameter representation from static intent templates to dynamic metric credit values. By using metric credit attributes that can be adjusted based on network conditions, the system achieves both simplicity in configuration and efficiency in path establishment, resolving the contradiction between configuration simplicity and path establishment efficiency.
2Measurement precision
If intent-template configuration is used, then routing flexibility is maintained, but measurement precision of path metrics decreases
Solution Approach 1:
The patent replaces the mechanical intent-template matching system with a metric credit-based measurement system. Instead of relying on template matching which lacks precision, the system uses metric credit attributes that provide precise measurement of path metrics while maintaining routing flexibility through BGP's inherent flexibility.
Solution Approach 2:
The patent introduces metric credit as an intermediary between routing decisions and path metrics. The metric credit attribute serves as a mediator that carries precise path metric information through BGP advertisements, enabling both precise measurement and flexible routing without requiring complex intent-template configurations.
3Measurement precision
If multiple delay indicators are included in intent-templates, then path selection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple delay indicators and path selection criteria into a single metric credit attribute. Instead of managing multiple separate delay indicators in intent-templates, the system combines them into one unified metric credit value that encapsulates all necessary path metric information, reducing configuration complexity while maintaining path selection accuracy.
Solution Approach 2:
The patent makes the metric credit attribute universal by enabling it to carry multiple types of path metric information (delay, bandwidth, loss, etc.) within a single attribute. This multi-functional approach eliminates the need for multiple separate configuration parameters, reducing device complexity while maintaining comprehensive path selection capability.
Data Source
AI summary
Provided are a method for receiving border gateway protocol (BGP)-intent route, and a method for advertising BGP-intent route. The method for receiving BGP-intent route includes: receiving the BGP-intent route advertised by a BGP speaker, where the BGP-intent route carries at least one of the following: a metric type, a metric and metric credit information.