Cache Advance Proxy for SCTP Pipe Analysis
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Solution Overview
Problem
Current WAN optimization techniques face challenges in effectively analyzing and optimizing Cache Advance (CA) transport protocols, particularly in intercepting and routing transport packets across SCTP pipes to ensure correct policy application and load balancing.
Innovation Solution
An apparatus and method that utilize a communications interface and control logic to analyze communication sessions by sending predefined packets, intercepting responses, and routing them through SCTP pipes, allowing for the determination of service parameters like file descriptors, latency, and bandwidth utilization, facilitating network debugging and optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transport packets are intercepted and bundled over SCTP pipes, then network optimization is improved, but network analysis and debugging capability deteriorates
Solution Approach 1:
The patent introduces a probe packet as an intermediary that travels through the SCTP pipe infrastructure to carry analysis information. This probe mechanism enables network path analysis and debugging without disrupting the optimized transport of actual data packets, thus resolving the contradiction between optimization and analyzability
Solution Approach 2:
The patent segments the network analysis function from regular data traffic by using dedicated probe packets with specific identification markers. This segmentation allows independent analysis operations while maintaining the integrity of the optimized transport path for actual data
2Speed
If Cache Advance transport optimization is implemented, then data transmission efficiency is improved, but policy verification and load balancing monitoring deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where probe packets traverse the SCTP pipe and return with information about policy application and load balancing status. This feedback loop enables continuous verification of optimization policies while maintaining high-speed data transmission through the bundled SCTP pipes
Data Source
AI summary
In an example embodiment described herein, there is disclosed an implementation for analyzing a network having cache advance (CA) segments, such as a session control protocol (SCTP) pipe. The path between endpoints, e.g. a client on a first local area network (LAN) and a server on a second LAN, wherein the first and second LAN are coupled by an SCTP pipe, is determined and properties of the path are acquired.