Dtim Interval Là Gì


DTIM Interval goes hvà in hand with the Beacon interval setting. Without going into lớn the technical details, we will explain what DTIM interval does, và when và how lớn use the best setting for the DTIM interval option.

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Please note that this is a “layman’s” guide where we will explain the settings và reasoning as simple as possible. We will try not khổng lồ into heavy technical details, but instead give sầu you clear examples on how khổng lồ make the best of the DTIM period settings with your personal trang chủ or even office setup.

What does DTIM interval mean?DTIM stands for Delivery traffic indication maps or message. It is basically an additional message added after the normal beabé broadcast by your router or access point.

Depending on the timing mix for your router, the router “buffers” broadcast & multicast data & let your thiết bị di động devices or clients know when khổng lồ “wake up” to receive sầu those data.

The more often that DTIM is transmitted, the more often that your thiết bị di động devices wake up, và the more battery that it uses (due khổng lồ the lachồng of “sleep”). By setting a low value of DTIM và beacon interval, you can effectively keep your devices awake indefinitely so they never go into sleep mode when idling. In some cases the “no sleep” cài đặt can use up to lớn 10~20% additional power consumption.

The following is a tool-tip message when you check for DTIM setting for Hãng Asus branded routers: DTIM (Delivery Traffic Indication Message) is included in Beanhỏ packet. The DTIM interval (1-255) means the peroid of time khổng lồ wake up wireless clients from Sleep Mode. The default value is 3.

Router settings typically let you cài đặt the “DTIM Interval” where you can calculate the DTIM period. However, some routers may also let you cài đặt the period directly but that is rare.

DTIM interval explained and how khổng lồ calculate DTIM periodThe DTIM count is the frequency of data transmissions per each beabé broadcast. For example, a value of 1 will have DTIM broadcast every beacon, và a value of 100 will have DTIM broadcast every 100 beacon.

Now, depending on your beabé interval, you can calculate the frequency of DTIM broadcast in terms of time period. If you have a beacon interval of 100 ms & a DTIM value of 1, the DTIM is transmitted every 100 ms which equates to lớn 10 times per second. If you have a beanhỏ interval of 1000 ms & a DTIM value of 2, the DTIM is transmitted once every two second.

How is DTIM period activated?DTIM period or interval is activated whenever one of the device within your network uses power save sầu mode. When one devices enable power save mode, the AP. will use DTIM for all the devices connected lớn that particular SSID và buffer the data messages. Otherwise, the router or access point sends out the messages right away if no clients in your network has enabled power save sầu mode.

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So if you vì chưng not want to lớn use DTIM, make sure that all the devices connected bởi not use power save mode. However, most of the Smartphone devices such as Android or Iphone now generally automatically implements DTIM features so the chances are pretty high that your trang chủ network or access point will take advantage of the power save mode.

How lớn Fine Tune DTIM setting high or lowIn most home use cases such as gaming or general internet use, the default value set by your router manufacturer is sufficient (it usually range from 1 to lớn 3 as default). The highest value is usually 255 for most brands of routers. The setting can be typically found under the professional or advanced setting of your router’s wireless thiết lập section.

However, if your goal is khổng lồ really optimize it for battery life purpose, you could start by setting the DTIM interval value to as high as allowed. You may also enjoy some fringe và minor performance benefit by keeping your other inactive devices “asleep” while doing your main task such as online gaming.

It should be noted that the battery life saving feature is automatically enabled when your wireless adapter goes “idle”, it makes no effect while you are actively using your client such as sản phẩm điện thoại devices, máy tính, or desktop while performing your everyday tasks.

When you thiết lập the DTIM interval lớn the highest allowed value, the main benefit is that you will be able to lớn enjoy the full effect of the battery saving feature. However, you should always monitor your router’s và device’s wireless performance for any problems. Some weaker routers may not be able to lớn buffer a long holding period, which can potentially crash the router or causing data lớn be lost. You may also want to lớn lower the value if you notice frequent drop in signal connection. Some devices drop the signal when they vì chưng not receive sầu transmission from the beacon or miss several data transmission.

If you notice certain applications that you run in your household start acting funky, lower the DTIM interval value. The application that usually have trouble with high DTIM rates include VoIPhường, mirroring, airplay, & certain multicast / broadcast specific applications. In addition, certain applications may straight out specify the value of DTIM timing on their best value recommendation.

The mặc định setting appears lớn be the most stable in most cases. If you have time sensitive or time critical applications, you are generally required khổng lồ keep the DTIM broadcast rate at roughly 5~10 times per second khổng lồ ensure smoothness of the software application. This means a beanhỏ period of 100 ms / DTIM value of 1 or 2.

For office or work use, if you are using broadcast or multicast messages / data, you want khổng lồ start fine tuning with a low value of DTIM period value and gradually add to that value. It is really a fine tuning process for you lớn determine the best balance between the application’s actual multicast / broadcast utility needs versus the power consumption of your over user’s client devices.

In a time sensitive sầu environment, many applications usually cannot handle a long time between each broadcast and multicast messages, it can result in time lag và poor performance, which can be dangerous in highly time critical situations that usually correspond with a work environment such as medical uses.

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