Shulou(Shulou.com)06/01 Report--

As a professional traffic monitoring and acquisition device, Rongteng network shunt has the advantages of low packet loss rate, reliable performance, high speed, etc. It is an important basic equipment for network monitoring in the whole network security field!

Orthogonal architecture, support 10G and 200G, can be adjusted according to needs! (Orthographic pictures are too large, so they are not uploaded)

Four reasons for network packet loss and repair methods

Network link blocking

solution

Device performance (router/switch/firewall network splitter/etc.)

solution

Software issues (bugs) on network devices

solution

Faults in hardware or network cables

solution

reference

Four reasons for network packet loss and repair methods

Network performance is a long-standing problem. Networks are the foundation of applications and data. So if there is a problem at this level, it will affect the experience of the upper application. There are many reasons for network performance problems, but in this article we focus on network performance problems caused by packet loss. The following four causes of packet loss are common to us.

Network link blocking

Data travels through many devices and network links as it travels through the network. As long as one of the network links is fully loaded before the data arrives, the data will be blocked there for a while and then transmitted over the network line (this is called queuing). If the network equipment is lagging behind the network link, then the network link does not have enough room for new data to wait. So the only thing it can do is throw the information away.

"Data being dropped" may sound cruel, but most applications handle this problem well without affecting the user experience. The client application, once it detects packet loss, will reduce the transmission rate or retransmit the data accordingly. If it is not a real-time application, then as long as packet loss does not occur continuously, then the impact is relatively small.

If some applications do not handle this well, packet loss will affect the user experience of the application. If packet loss occurs during your call, there is no time to resend it because it is a real-time conversation. Well, when the user loses packets, he will find that the call is intermittent. If the packet loss is serious, the call may even be disconnected. Another important program that needs a low packet loss rate is video conferencing. If packet loss occurs between two clients, video artifacts will appear and audio will be distorted.

Rongteng high-density traffic acquisition equipment, supporting 48 10G and 4 100G or 4 40G Ethernet

solution

There are two ways to reduce the impact of packet loss caused by network congestion.

Increase the bandwidth of blocked links

Prioritize real-time applications using QoS(Traffic Priority and Resource Reservation Control). Although this method does not alleviate network congestion, it can prioritize voice and video to reduce the possibility of disconnection.

Device performance (router/switch/firewall/network splitter, etc.)

If bandwidth is sufficient, but if your router/switch/firewall cannot handle traffic, then you still have packet loss. Let's consider a scenario where you've just upgraded your network bandwidth from 1Gb to 10Gb because traffic reports show that traffic peaks during peak periods of the day. After upgrading, your chart shows that you can achieve 1.5Gb , but you still suffer from this network performance problem. This problem may be due to the equipment capacity can not handle traffic, you have reached the maximum traffic that your hardware can provide, and the network splitter can handle high speed network traffic, but the network splitter as a dedicated device, usually more expensive than the switch!

High density, high throughput and high cost performance ATCA for large data acquisition, supporting 480 10G and 76 100G

When network packets arrive at a network device, but the network device's CPU, or memory, is full and unable to process other packets. This causes packets that the device cannot process to be dropped.

Mobile signaling acquisition equipment, support 10 100G and 120 10G, can adjust support according to demand, up to 48 100G and 160 10G

solution

You have to replace network hardware with higher throughput and better performance, or build clusters to improve throughput.

Software issues (bugs) on network devices

We may all want the software on our web devices to be perfect, but I can assure you that it isn't. These network devices are complex. It's only a matter of time before you run into bugs.

When you deploy a new feature, these bugs may cause the new feature to not work, or you may not be aware of them for a while before you notice the network performance problem.

solution

You must update the software on the device affected by the software issue.

Faults in hardware or network cables

Your network reports show that your network links are not overloaded and your hardware is not being used illegally. Another common problem that causes packet loss may be caused by a failure of a physical component.

If hardware fails, it usually outputs an error message on the device terminal or in the system log.

If it is a network link error, it is usually a network interface error. This can be detected on copper cables and optical fibers.

solution

Faulty hardware must be replaced and faulty network links repaired.

These are common causes of network packet loss. But there are many other reasons for packet loss. The best way to determine the root cause is through network assessment and thorough troubleshooting.

A partner who is good at spotting problems on the web can help you develop a remediation strategy that will protect you from bad networking.

network tap

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