Switching Device Packet Format Conversion for Cache Processing
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Solution Overview
Problem
In content transmission systems, cache devices are unable to recognize and process packets used for data transmission and reception in core networks, leading to issues like data loss, transmission delay, and data interruption due to the limited recognition of second-form packets by cache devices.
Innovation Solution
A switching device is employed to convert second-form packets into pseudo-first-form packets by attaching a second-form header to the end of first-form packets, allowing cache devices to process them without damaging the original packet information, and then restoring the packets to their original form for transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cache devices directly process second-form packets from core networks, then data transmission can occur, but cache devices cannot recognize or process these packets leading to data loss, transmission delay, and data interruption
Solution Approach 1:
The patent introduces a switching device as an intermediary between the core network and cache devices. This switching device performs format conversion by attaching a second-form header to first-form packets to create pseudo-first-form packets that cache devices can recognize and process, thereby resolving the incompatibility without requiring changes to either the core network or cache devices
Solution Approach 2:
The patent changes the packet format parameters by modifying the packet structure. Specifically, it attaches a second-form header to the end of first-form packets to create pseudo-first-form packets, transforming the packet format to be recognizable by cache devices while preserving the original packet information
2Speed
If packet format conversion is performed to enable cache device processing, then content access speed improves, but device complexity increases due to the switching device and conversion process
Solution Approach 1:
The patent divides the system into distinct functional segments: the switching device handles format conversion, while cache devices handle content processing. This segmentation allows each component to specialize in its function, improving overall content access speed while containing complexity within the switching device rather than requiring complex changes throughout the entire system
3Loss of time
If second-form packets are transmitted directly to cache devices, then transmission delay is reduced, but data loss and interruption occur due to unrecognized packet formats
Solution Approach 1:
The patent performs preliminary format conversion action at the switching device before packets reach cache devices. By pre-converting second-form packets into pseudo-first-form packets that cache devices can recognize, the system ensures data integrity is maintained throughout transmission without requiring retransmission or correction at later stages
Data Source
AI summary
A switching device for data processing includes: a processor unit to generate a pseudo-first-form packet by attaching a second-form header to an end portion of a first-form packet when a second-form packet is input, the second-form packet including the first-form packet encapsulated with the second-form header; and a switching unit to transfer the second-form packet to the processor unit when the second-form packet is input from a network, and transfer the pseudo-first-form packet generated by the processor unit to a cache device such that the cache device processes the pseudo-first-form packet.