In-Situ Flow Detection Messaging for Reverse Path Auto-Configuration
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Solution Overview
Problem
The configuration workload for in-situ flow detection in networks with multiple backup paths is high due to the need to manually configure reverse service flow characteristics on each backup path, leading to resource wastage and increased complexity.
Innovation Solution
A message processing method that includes encapsulating service messages with in-situ flow detection options containing additional information, allowing tail nodes to automatically obtain reverse service flow characteristics, thereby reducing the need for manual configuration on unused backup paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reverse service flow characteristics are manually configured on each backup path head node, then in-situ flow detection can be performed on all backup paths, but the configuration workload increases significantly and hardware resources are wasted on unused paths
Solution Approach 1:
The patent enables tail nodes to automatically generate and distribute reverse service flow characteristics to backup path head nodes through service messages. This self-service mechanism eliminates manual configuration requirements, allowing the system to automatically provision detection capabilities across multiple backup paths without human intervention, thereby resolving the contradiction between detection capability and configuration complexity
Solution Approach 2:
The patent performs preliminary action by having tail nodes pre-generate reverse service flow characteristics and embed them in service messages before transmission. This allows backup path head nodes to acquire necessary detection parameters in advance through automatic message processing, eliminating the need for manual pre-configuration and reducing overall system complexity while maintaining detection readiness
2Reliability
If reverse service flow characteristics are configured on multiple backup path head nodes, then detection coverage is improved, but hardware resources are occupied on paths that may not be actively used
Solution Approach 1:
The patent implements dynamic resource allocation by enabling backup path head nodes to acquire reverse service flow characteristics dynamically through service messages rather than static manual configuration. This allows the system to activate detection resources only on paths that are actually used, optimizing hardware resource utilization while maintaining comprehensive detection coverage across multiple potential backup paths
Solution Approach 2:
The patent creates a universal mechanism where tail nodes serve multiple functions: generating reverse service flow characteristics, selecting appropriate backup paths based on current network state, and distributing characteristics to relevant head nodes. This multi-functionality allows the system to maintain detection coverage across multiple paths without permanently allocating resources to all possible paths, thereby reducing overall hardware resource occupation
3Measurement precision
If manual configuration is performed on each backup path, then detection accuracy is maintained, but time consumption and operational efficiency decrease
Solution Approach 1:
The patent implements feedback mechanisms where tail nodes automatically generate reverse service flow characteristics based on actual service flow information and feed them back to backup path head nodes through service messages. This automated feedback loop ensures detection accuracy is maintained through precise, up-to-date characteristics while eliminating time-consuming manual configuration processes, thereby resolving the contradiction between measurement precision and configuration efficiency
Data Source
AI summary
A message processing method for in-situ flow detection and network device relate to the field of communication technology. The method includes: receiving a first service message; sending a second service message to a second network device, wherein the second service message includes a first in-situ flow detection option and the first service message, wherein the first in-situ flow detection option includes first additional information, the first additional information includes first reverse service flow characteristics, and the first reverse service flow characteristics are used by a head node of a first reverse path for generating a first service flow identification rule for in-situ flow detection; wherein, the head node is a tail node of a first forward path, and the first network device and the second network device are both on the first forward path and the first reverse path. The configuration workload can be reduced.