Traffic control cure "Snail network"

Traffic control refers to traffic control. In the aviation system, when the number of planes to take off is greater than the acceptable outbound traffic at the airport and the traffic is congested, the feasible solution is traffic control.

Specifically, even if all flights are arranged in advance, flight delays may occur due to weather, military drills, mechanical faults, and other reasons. Delayed flights must be queued for take-off and landing. Once the number of planes in a sector exceeds the control of the Controller, the local controller will contact the surrounding airspace, stop the aircraft in the surrounding airspace, which is traffic control.

In addition to aviation, traffic control is also common in the communication field. Like traffic control in aviation, traffic congestion occurs when the traffic exceeds the acceptable traffic of the egress bandwidth in the communication field. In this case, traffic control is required.

When traffic is congested, packet loss, latency, retransmission, and other network problems may occur. We will feel this way during the peak hours of surfing the Internet. on weekdays, the network is still smooth. Once we enter the peak hours, it will become a "Snail network ".

Traffic congestion is also deeply plaguing enterprise users. during peak hours or some special periods, network congestion is serious, and many normal jobs cannot be carried out, causing great losses to some enterprises and institutions.

In this case, there are two solutions. One is to expand the egress bandwidth; the other is to control the traffic in the existing network. Expansion of outbound bandwidth means an increase in costs, and P2P is usually the main cause of congestion in the existing congestion. As outbound bandwidth increases and P2P Traffic increases, traffic control becomes a powerful tool to cure bandwidth congestion.

ZHANG Le, who has been engaged in network congestion management for many years (senior traffic management expert and wangkang technology traffic control equipment product manager), said that the core method of traffic control is to restrict unrelated applications and reserve the bandwidth to ensure the core business. At the same time, it is effective to ensure that users do not compete for each other, businesses do not compete for each other, and links do not compete for each other. The current traffic management technology is becoming increasingly mature.

Traffic control has become an indispensable technical means in modern society. I can predict that traffic control is the inevitable outcome of the development of the Internet era, and its application will become increasingly apparent.