First, the first here and tell you about what is the bandwidth:
Bandwidth is an important factor in determining the speed of the host access, especially access to large sites, network bandwidth size is very important. Bandwidth refers to the total amount of data per unit time can be transmitted.
Second, how that view the network server bandwidth it:
1. Download the file using the test
Download the file, the download speed is generally one-eighth of the bandwidth, of course, there will be a loss in the middle, not a big minus are considered normal. For chestnut: First, understand your maximum bandwidth, ADSL 5MBPS if it is, then the theoretical maximum download speed is 5 * 1024/8 = 640KB, the actual maximum download speed is 600KB or more are considered stable. When testing to find more than 50M download the file, the time a little longer, with a single-threaded download, mainly to see an average value on it, if they can reach peak download Internet way, and stabilized at a value segment, it can be said stable.
2. Use Ping to test network speed
To test the current condition of the network through the IP address of the ping service providers offer. However, note that this method is only an estimate of bandwidth, rather than visually demonstrated the value, access speed stability of this method is the most important test server bandwidth.
3. Use the test site
As long as you search on a search engine, you will find there are actually a lot to offer network speed test website speed test platform using a speed test site in the network, Internet users are most commonly used speed test method, and the user according to the network using case selection test line, the test points throughout the provinces, the United States, Australia, Japan and other overseas countries, the user can select any test point for testing site uses flash to achieve speed function, visual test procedure, the test results can accurately reflect the local network rate, No need to download or install plugins to add additional equipment, easy to use, easy to operate.
Third, how bandwidth and traffic server selection:
These are several methods to view the server network bandwidth. Because the network bandwidth and traffic is essential for the server, so before the election server should have a good understanding of this concept, or hosting provider can easily be fooled. Knowing you'll probably know, hosting providers say what is to be believed, which is not credible, can also eliminate the misconceptions many people, it is important to understand the server bandwidth, here we come together to understand the next.
1. How to distinguish between shared and exclusive and select
This virtual hosts generally do not say, will be mentioned only in dedicated hosting and managed the time, because the virtual host is certainly a shared server bandwidth, not exclusive. But because the virtual host is branching off from the server, the server's bandwidth or understand better. 100M domestic common is shared and exclusive 10M, 100M share is actually a port of a cabinet to share 100M, as to how much could be assigned to each server, depending on the bandwidth consumption and the number of servers per rack of servers. The 10M exclusive, that is, each server port to a 10M. In general, 100M share bandwidth assigned to each server in about 2M to 5M, it is better than the 100M 10M exclusive shared.
Most domestic virtual host server using a shared 100M, 10M also has exclusive, but some say he is 100M exclusive server must be careful, a lot of deceptive suspects.
In addition to the above said, in fact, a server can be assigned bandwidth also depends on whether sufficient bandwidth of the entire room. Exclusive exclusive 10M or 100M is only 10M or 100M port on the switch port received, to be an extreme example, suppose you room to 100M of the port, but the computer room to the public network export actually only 10M, then in fact you the maximum bandwidth is 10M it. In this sense, 100M exclusive or shared in fact, not to put your exports received a backbone. Then freshman level, if it is a backbone network congestion, is to give you 1G ports to the Internet backbone bandwidth will still be restricted. So exclusive and shared in fact is relative.
2. confusing two units: byte and bit
Speaking of bandwidth, will involve a unit of bandwidth, the bandwidth is generally done in bits units, English is the bit, for example, adsl bandwidth is 2mb, in fact 2mbit per second. Previous M, as well as the corresponding K, G we should have encountered, represent an order of magnitude, hexadecimal 1024, the estimated time can also simply use 1000 instead. That is 1G = 1024M 1M = 1024K.
Familiar with the concept that people usually use a computer, such as my hard drive is 160G. What does this represent 160G, in fact, 160G Byte, which is 160G bit, so we know this and say that the above is not the same 2mb.
Relationship between bits and bits: a byte equal 8bit.
When two abbreviations are b, customary abbreviation byte uppercase B, and bit by lowercase b, but a lot of time writing a lot of confusion, so to see the first figure out the bandwidth of the host trademark is byte or bit. Generally room bandwidth host port bandwidth is a bit, but some limit the peak bandwidth of the host, and this host some commercial byte, and some by bit, a difference of 8 times, so we have to figure out. To learn more, please, and small series AC QQ: 3002030162
3. Traffic
For network bandwidth control, many hosting providers, especially the United States host will restrict the flow, then we analyze the specific concept of the size of the index traffic bandwidth site and feel.
(1) .10M maximum monthly traffic exclusive server:
Bandwidth using a bit, so do not forget to 8-fold difference. Broadband bandwidths is calculated as follows
(10m x 3600 x 24 x30) /(1024x8) =3164GB
That is, the upper limit of the flow server 10M exclusive of each month is 3000G, it can be seen, regardless of whether the hosting providers clearly written restrict the flow, in fact, there are limits, but do not write just to write. Calculated above is the ideal state, it seems to say is not up to a maximum bandwidth.
In general, at least on one server to put 100 sites (many of which are hundreds), then if the average operator, assigned to each site's traffic is actually only 30G per month.
What (2) .1G flow mean?
Suppose you are a page is 100KB, 1G traffic can access the page you are: (1x1024x1024) / 100 = 10485, that is to say 1G daily traffic can withstand 10,000 PV, a lot of personal website is not up to such a large pv, so many sites 30G traffic per month enough. Of course, if downloaded, then the flow is likely to be significant.
In addition, a page file 100K, consumed when the traffic is not necessarily 100K, browsers will cache pages, many elements are not double counting traffic. It also can reduce traffic occupied by gzip like.
Therefore, under normal circumstances, traffic restrictions and most people do not imagine so terrible, and regardless of whether the hosting providers limit, in fact, implied traffic restrictions. If your server has only 1M bandwidth, you desperately use, only a month spent only 300G.
Only a clear understanding of what is the bandwidth, how to judge the authenticity of bandwidth, traffic, and bandwidth is shared and exclusive distinction, do you think know how to better choose their own server to avoid being fooled by unscrupulous businessmen, to do their own on the field small expert! ~ ~ ~ Today is Tanabata Festival, I wish you all a happy Tanabata Festival, all Happy day!