High-speed network protocol system suitable for block chain network and transmission method

Abstract

The invention provides a high-speed network protocol system-based transmission method and system suitable for a block chain network, and the method comprises the steps: 1, for each link of each network card, writing an initial bandwidth in an htb module of a Linux kernel where the block chain network is located, the initial bandwidth comprising a network card bandwidth BWcard and a connected line bandwidth BWnet; step 2, the total bandwidth corresponding to the network card and the connected line is set as BW, and BW = min (BWcard, BWnet); step 3, counting each connection passing through a certain router in the kernel, distributing an initial bandwidth for the newly added connection, feeding back an ACK packet passing through the connection to the sending end, counting the actual calculation speed of the connection on the router after a period of time, and feeding back the actual calculation speed to the sending end; step 4, repeating the steps 1-3 on each router which the connection passes through; and step 5, determining whether the bandwidth value returned in the ACK packet is greater than the actual calculation speed result counted by the router, and if so, giving a new statistical result to the ACK packet.

Description

technical field [0001] The invention belongs to the technical field of high-speed network protocol and block chain technology, and specifically relates to a high-speed network protocol system and transmission method suitable for block chain network. The developed network protocol is suitable for the characteristics of block chain network traffic and improves the area The throughput of the block chain network and the reduction of delay. Background technique [0002] There are currently three mainstream transport layer network protocols: Reno, CUBIC, and BBR. The CUBIC algorithm uses the dichotomy method to calculate the sending speed, and BBR calculates the sending speed by calculating the difference between the timestamp of the data packet and the corresponding ACK. [0003] 1. Reno [0004] Reno is characterized by slow start and congestion control. It is the congestion control protocol used when the Internet was originally designed. Due to its poor performance, the curren...

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Problems solved by technology

[0007] (1) Slow startup. Although the startup speed is better than the Reno algorithm, it is still very slow. It takes n*rtt (round-trip delay) time to reach the highest link bandwidth, which is not suitable for network connections with small data packets. friendly

[0008] (2) Excessive sensitivity to packet loss, resulting in poor performance in bad network environments

[0011] (1) The problem of slow start still exists, and it takes n*rtt time to determine the maximum bandwidth, which is not friendly to network connections with small data packets

[0012] (2) When there are multiple connections competing for bandwidth, the convergence speed of each connection is very slow, resulting in unbalanced bandwidth allocation, image 3 Shown is the traffic competition diagram of BBR, which is represented by image 3 It can be seen that when there are two connections competing for bandwidth, it takes 30 seconds to reach a steady state

[0013] (3) When the link router queue is very long and the link delay is constantly changing, the bandwidth utilization is very low

[0014] (4) Due to the delay-based property of BBR and the overly aggressive bandwidth detection method, its packet loss rate is higher than that of CUBIC, which is more likely to cause packet loss. In some cases it will be lower than CUBIC

[0017] (2) In the case of a large amount of burst traffic, since the speed of all traffic is slow-started, it is impossible to give a suitable initial speed at the beginning. After a certain limit, the burst traffic will cause packet loss, resulting in network congestion.

[0018] (3) The unfairness of the connection causes the transaction to be fast in some regions and certain hours, and the transaction is slow in certain regions, which affects fairness

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