Front-Stage Gateway Access Relay for Network Latency Reduction
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Solution Overview
Problem
In high-traffic network systems, the analysis of header information across multiple gateway devices increases latency due to unnecessary routing steps and inefficient data transfer, particularly when switches at both front and back stages lack destination information, leading to suboptimal communication speeds.
Innovation Solution
Implementing an access relay method where the gateway device at the front stage analyzes communication data to identify the target server and adds identification information to IP packets, allowing the gateway device at the back stage to route messages directly to the proper server, thereby reducing higher-level routing processing and optimizing data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If header information is analyzed in all switches at front and back stages, then routing capability is improved, but analysis load increases and packet transfer takes time
Solution Approach 1:
The front-stage gateway device performs preliminary analysis of header information and determines the destination server before packets reach back-stage switches. This preliminary action allows back-stage switches to forward packets based on pre-determined routing information without performing complex header analysis, thereby reducing packet transfer time while maintaining routing capability.
Solution Approach 2:
The routing function is segmented between front-stage and back-stage gateway devices. The front-stage device handles complex header analysis and routing decision-making, while back-stage devices handle simpler packet forwarding based on the routing decisions already made. This segmentation distributes the analysis load and prevents bottlenecks at back-stage switches.
2Speed
If switches at back stage make routing without grasping circumstances in transfer destination, then routing speed is improved, but superfluous transfer processing between servers occurs
Solution Approach 1:
The system implements feedback mechanisms where the front-stage gateway device receives information about data location and server circumstances, then uses this feedback to make informed routing decisions. This ensures packets are directed to the correct server on the first attempt, eliminating superfluous transfer processing while maintaining high routing speed.
Solution Approach 2:
The front-stage gateway device performs preliminary determination of the destination server using dispersion rules and header analysis before packets are forwarded. This preliminary action ensures that packets are routed directly to the correct server without requiring back-stage switches to perform additional routing or forwarding operations, thereby eliminating wasted energy on superfluous transfers.
3Reliability
If data communication passes through plural gateway devices, then system reliability is improved, but communication latency increases
Solution Approach 1:
The front-stage gateway device performs preliminary analysis and determines the exact destination server before packets enter the multi-gateway transmission path. This preliminary action enables optimized routing through the plural gateway devices, ensuring packets follow the most efficient path and minimizing latency while maintaining the reliability benefits of using multiple gateways.
Solution Approach 2:
The communication path through plural gateway devices is segmented into distinct functional zones: the front-stage gateway handles complex analysis and routing decisions, while back-stage gateways handle simpler packet forwarding. This segmentation allows each device to operate at optimal speed for its function, reducing overall communication latency while maintaining system reliability through the distributed gateway architecture.
Data Source
AI summary
A gateway device disposed at front stage before a server has a dispersion rule of data dispersed on server side and analyzes communication data to specify a server to be accessed finally, so that identification information of the specified server is added to packet option of IP layer to thereby omit higher-rank routing processing than IP layer of gateway devices on the way. Consequently, transfer processing of a gateway device at back stage can be performed at high speed and access passing through a network route intended by manager is possible.