IPv6 Extension Header for Intermediate Bit Error Collection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In IP networks, especially IPv6 networks, the BFD protocol cannot collect bit error information from intermediate nodes due to the nature of UDP packets, limiting path switching and affecting QoS.
Innovation Solution
A method that involves modifying IPv6 measurement request packets to include bit error information in an IPv6 extension header, allowing intermediate nodes to record and forward this information, enabling the head node to perform path switching based on comprehensive bit error data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If BFD protocol is used to transmit bit error information, then the head node can receive bit error information from the tail node, but intermediate nodes cannot encapsulate the bit error information and their bit error data cannot be collected
Solution Approach 1:
The patent introduces an intermediary mechanism by modifying the IPv6 extension header to serve as a carrier for intermediate node bit error information. The extension header acts as a mediator that allows intermediate nodes to encapsulate and forward their bit error data along the transmission path, solving the problem where BFD packets could not be modified by intermediate nodes.
Solution Approach 2:
The patent changes the parameter structure of IPv6 packets by utilizing the extension header for bit error information transmission. By modifying how the extension header is used (from traditional purposes to carrying bit error data), the system enables intermediate nodes to participate in bit error information collection without changing the fundamental BFD protocol operation.
2Reliability
If bit error information is transmitted using BFD packets, then the head node can trigger path switching based on tail node data, but path switching cannot be performed based on intermediate node bit error information
Solution Approach 1:
The extension header serves as an intermediary carrier that enables intermediate nodes to forward their bit error information to the head node. This intermediary mechanism ensures that path switching decisions can be based on comprehensive data from all nodes along the transmission path, not just the tail node.
Solution Approach 2:
The patent implements a feedback mechanism where intermediate nodes continuously send their bit error information back to the head node through the modified extension header. This feedback loop enables the head node to receive real-time bit error data from intermediate nodes and make informed path switching decisions.
3Measurement precision
If BFD protocol is used for bit error detection, then quality of service can be monitored at the tail node, but QoS cannot be effectively improved due to lack of intermediate node data
Solution Approach 1:
The extension header acts as an intermediary that enables precise measurement of bit error rates at intermediate nodes. By carrying bit error information from multiple intermediate nodes to the head node, the system achieves comprehensive QoS monitoring and can effectively implement path switching to improve overall network productivity.
Data Source
AI summary
A method for collecting bit error information is provided. According to the method, a head node may encapsulate indication information into an IPv6 extension header of an IPv6 measurement request packet. The indication information indicates at least one intermediate node on a transmission path of the IPv6 measurement request packet to record bit error information into the IPv6 extension header. According to the application, the bit error information of the intermediate node on the transmission path can be collected.