Packet Transmission Buffering for Deterministic WAN Delivery
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Solution Overview
Problem
Current deterministic packet transmission technologies have poor adaptability to complex wide area networks (WAN) due to requirements for synchronized network devices and limited network span, leading to issues with jitter and time delay.
Innovation Solution
A packet transmission method involving buffering received packets for a preset duration and reorganizing them according to a mapping rule, allowing for reduced jitter and deterministic transmission without requiring synchronization across all network devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current deterministic transmission methods are used, then time delay and jitter can be controlled, but device complexity increases and adaptability to WAN deteriorates
Solution Approach 1:
The patent extracts the deterministic transmission function from complex synchronized network devices and concentrates it in the terminal device. The terminal device independently buffers packets and controls transmission timing, eliminating the need for complex synchronization mechanisms at network devices while maintaining deterministic time delay and jitter control.
Solution Approach 2:
The terminal device performs self-service by autonomously buffering received packets and controlling its own transmission timing based on local scheduling cycles. This self-contained approach eliminates dependency on network device synchronization and reduces overall system complexity while achieving deterministic transmission.
2Reliability
If network devices are synchronized for deterministic transmission, then time delay can be controlled, but adaptability to complex WAN deteriorates
Solution Approach 1:
The patent removes the synchronization requirement from network devices by extracting the time control function to the terminal device. The terminal device uses local scheduling cycles to buffer and transmit packets, achieving deterministic time delay without requiring network-wide synchronization, thus improving adaptability to complex WAN.
Solution Approach 2:
The patent applies local quality by having each terminal device independently manage its own packet buffering and transmission timing based on local scheduling cycles. This localized approach allows deterministic transmission at each terminal without requiring global synchronization, enabling better adaptation to diverse network topologies.
3Reliability
If packets are buffered for deterministic transmission, then jitter can be reduced, but transmission time increases
Solution Approach 1:
The patent employs periodic action through scheduling cycles that periodically buffer and transmit packets. By organizing packet transmission in periodic cycles rather than continuous buffering, the system achieves jitter control while minimizing transmission time through efficient periodic scheduling rather than prolonged buffering.
Data Source
AI summary
The examples of the present disclosure provide a packet transmission method and apparatus, which relates to the field of network technology and is applied to the first network device. The method comprises: receiving a packet sent by a second network device; forwarding, after buffering the received packet for a preset time duration, the received packet. The disclosure of the technical solutions provided by the examples of the present disclosure improves the adaptability of the deterministic transmission to the WAN.