Vro setting completely eliminates network congestion

Source: Internet
Author: User

This article describes vro settings in detail, and describes how to skillfully set vrouters to prevent network congestion, the following article will give you a detailed explanation.

There may be several computers in the home or small network, and there may also be combinations of the Xbox 360 game console, iPhone or other handheld devices, there may even be audio players, video players, and other devices. Although some devices connect to the vro in a wired way, many devices may connect to the vro in a wireless way.

So what will happen when one wants to listen to music while the other wants to watch a movie? If you have never modified the firmware of A vro。, you may encounter performance problems. In addition, many wireless routers disable many of the best features when leaving the factory. Then, I will discuss with you how to change the configuration of the router to make full use of its functions.

Why is vro setting important?

By default, the wireless router will transmit data at the highest rate. This is good when you use A protocol such as TCP to transfer files from access point A to access point B. Because you need to transmit files as soon as possible. If the router starts to lose a lot of packets, it will reduce the connection rate until the packet loss rate is reduced, and then start to lose packets again.

When a user downloads a file from the Internet or transfers a file from a local network, packet loss and speed are not a major problem because the packet is automatically resending. It doesn't matter if some packets are in disordered order, because you won't access the file until the data transmission is complete.

However, when a user watches a movie or listens to music, or uses the VoIP service, packet loss and packet disorder are a big problem. Video or audio services require a reliable link rate. The smaller the packet loss, the better. Continuity is a key, but the connection rate is secondary.

For example, in a bedroom, sending clear videos from a computer to a media player usually consumes 20 Mbps to 25 Mbps of network bandwidth. For today's 802.11n routers, this should not be a problem because the device promises a theoretical bandwidth of up to 300 Mbps. In fact, packet loss, out-of-order, and jitter (packets arrive at different rates) all other problems, such as blurring, "Stuttering" of characters, loss of views, and inability to synchronize audio and video.

For example, concurrent communication on the network also has a great impact. If someone is using BT to exchange large files, you may not be able to enjoy the wonderful movies.

Fortunately, we can still find a way to deliver optimal performance for everyone. Unless your router is too old, its firmware settings can be set to indicate that the router sends video and audio-related communications with a higher priority than normal data files. Of course, the premise is that these data files are not time sensitive.

These settings are collectively referred to as QoS (Service Quality ). Enabling and adjusting the quality of service is a balancing action. On the one hand, it can make some network-oriented applications run more smoothly, and on the other hand, it has to sacrifice other applications. However, this is the best way to allocate the user's network bandwidth.

However, there is no standard user interface for modifying service settings. Each type of modern router supports the WMM specification, which can distinguish the priority of network communication based on four access types (voice, video, "Best Effort" data and background data. To make the WMM specification run, you must enable it on the firmware of the router and the wireless network card of the client.

In addition, each application (such as the Media Server in the NAS attached storage device) must embed two packets to notify the router of its priority. However, in addition to the VoIP service, almost no applications embed these bits. With these two bits, WMM is useless for applications other than voice. This is exactly why you need to adjust the QoS settings of the vro according to your own intentions.

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