I believe that many people have entered the broadband Internet access, and the feeling of installing the ADSL broadband Internet is different. Compared with the narrowband users who use the MODEM dial-up Internet, it is simply network madness. But many friends seem to have such doubts like me - I labeled 512K bandwidth when I apply for broadband, but the ADSL download rate does not reach the nominal 512K, why?
I. Theoretical analysis: After calmly pondering and analyzing, we don't really find the following problems, when the computer passes the network through the ADSL access network, we usually show a download rate indicator, the download rate, which is displayed above. Come around 50 kbyte / s. But please take a closer look at the label on the broadband leaflet. It is 512K bit / s, not 512K bytes / s, it is really lost, a thousand miles.
Second, how big is your bandwidth? Used a broadband, the speed of the Internet is several times faster than dialing. But how much is your network bandwidth now using broadband? Since the network is influenced in the actual use, it has a large gap with the theoretical speed provided by ISP. How can I know the current actual speed? We can test them through the following methods.
Method 1: Download measurement browser to log in to domestic well-known software or MP3 download stations, these website servers have strong carrying capacity, fast download speed, usually can basically understand the existing network bandwidth by observing a big file download speed Happening.
Method 2: Professional speed website "World Network" website is a professional speed-speed website, which provides network connection speed online testing services, the test results are visually displayed in the form of thermometer, easy to understand, widely welcomed domestic and foreign users. At present, nearly 2000 test points have been established, and the test points are all over the world. The following is a bandwidth test with the author's location as an example:
First log in to the World Network Website (http://www.linkwan.com), click the navigation bar to enter the "Online Test" channel, you will find the site to provide three test services: bandwidth test, routing tracking and web test . After entering the bandwidth test, select your location in the left table of the Test Points, then the network connection test begins, when the progress bar is completed to 100%, you will tell you the bandwidth test in two ways. result.
The author is connected to the world network Beijing test point at 649.35kbps, equivalent to 81.17k bytes / second. How to convert it: 649.35kbps / 8 = 81.17k bytes / second. 81.17k bytes per second represents the current network bandwidth. For accuracy, of course, we must do multiple tests at different times, so that the result is the closest.
Method 3: Dedicated Software Test Du meter is a network bandwidth meter, download address. It can display intuitive network bandwidth, existing digital display and graphic display, so you clearly understand your network bandwidth, as well as data transfer when you upload download.
Setting a floating window: After installing du meter, it will run automatically as the computer is started, and it is easy to use. The window can float, arbitrarily drag, in order to avoid the suspended window affects the browsing line, you can also adjust the DU meter to be modulated.
Watch Network Transmission Data: The lower side of the floating window is marked with the download rate and the upload rate. The author at the time is DL: 119.KB / sec, the upload rate UL: is 3.2kb / sec. These data are real-time monitoring of the network transmission rate at that time, which can objectively reflect the network bandwidth.
In addition, DU Meter also counts a certain day, a certain week or even a month upload, download, and total data, then write the log, you can understand the network bandwidth status within a certain phase of time according to these logs, and these data can be output Format for text, Excel form. How, this software wants to have enough? Through the above three test methods, you should have a number of network bandwidth you use it? -------------------------------------------------- --------------- Blog: Zhang Qing Zhangking@263.net QQ: 9365822 MSN: zhangking@hotmail.com Person: http://www.why100000.com ("100,000 Why "Computer Learning Network) Other Website: http://sogo99.com (" Sogou 99 "Network Portal) http://neteye.blogchina.com 2004.11.10
