NAT Channel Retention via Periodic Packet Detection
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Solution Overview
Problem
Current methods for retaining NAT channel service involve frequent transmission of test packets, which increase server workload and bandwidth usage, affecting network data transmission and operation.
Innovation Solution
A method that detects the valid period of the NAT channel by periodically sending packets through designated ports, allowing the NAT channel to remain active without frequent test packets, thereby reducing server workload and bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If test packets are frequently sent to retain NAT channel service, then the NAT channel remains active, but server workload and bandwidth usage increase
Solution Approach 1:
The patent implements periodic packet transmission at optimized intervals (e.g., every 30 seconds or 1 minute) rather than frequent continuous transmission. The system detects the valid period of the NAT channel and sends packets periodically within this window, maintaining channel activity while significantly reducing the frequency of transmissions compared to conventional approaches.
Solution Approach 2:
The system dynamically adjusts the packet transmission interval based on the detected valid period of the NAT channel. By monitoring channel status and adapting the transmission timing, the system optimizes the balance between maintaining channel availability and minimizing server workload, rather than using a fixed transmission schedule.
2Reliability
If test packets are frequently sent to retain NAT channel service, then the NAT channel remains active, but bandwidth usage increases
Solution Approach 1:
The system employs periodic packet transmission at optimized intervals within the NAT channel's valid period, reducing the overall volume of packets sent compared to frequent continuous transmission. This maintains channel availability while minimizing bandwidth consumption by sending packets only when necessary to sustain the channel.
Solution Approach 2:
The system changes the transmission parameter (time interval) based on the detected valid period of the NAT channel. By adjusting the packet transmission interval to match the channel's natural validity duration, the system reduces unnecessary transmissions and optimizes bandwidth utilization while maintaining service availability.
3Reliability
If packets are sent every 10 seconds to retain NAT channel, then channel service is maintained, but network operation efficiency decreases
Solution Approach 1:
The system implements periodic packet transmission with optimized intervals (e.g., 30 seconds or 1 minute) based on the detected valid period of the NAT channel, rather than fixed 10-second intervals. This reduces the total number of packets transmitted over time, improving network operation efficiency while maintaining channel availability.
Solution Approach 2:
The system performs preliminary detection of the NAT channel's valid period before establishing the packet transmission schedule. By knowing the channel's natural validity duration in advance, the system can pre-optimize the transmission interval to match, avoiding unnecessary packets and improving overall network efficiency.
Data Source
AI summary
A method of effective retaining of NAT channel service is provided. The method is applicable to a network system comprising at least one intranet device, a NAT network device and at least one server, in which the NAT network device is allocated with a plurality of NAT channel ports. The intranet device operates a process for detecting a valid period of the NAT channel with respect to the server via the NAT channel ports. The intranet device periodically transmits a packet, within the valid period of the NAT channel, to the server via the NAT channel ports so as to allow each NAT channel to constantly retain active to provide network transmission service.