College】 【weak packet loss and failure to determine cause of the problem and solution.

<br> <BR> data on the INTERNET is a unit of transmission packet, each packet nK, no less. .This means that, no matter how good the network line, network equipment, more powerful, your data is not in a linear (like a phone) transmission in the middle is always empty. .Packet transmission, it is impossible to complete one hundred percent, because of various reasons, there is always a certain loss. .Encountered such a situation, INTERNET automatically under the agreement for both sides to make the computer package and retransmission of the packet. .If the network is a good line speed, packet loss is very small, make up packets and retransmission of the work is relatively easy to complete, so you can approximate the data transmitted will be regarded as lossless. .However, if poor network lines, loss of data will be very large, are not one hundred percent compensation package of work done. .In this case, data transmission will appear empty, resulting in packet loss. .Open the Web <BR> <BR> especially slow speed, and sometimes part of the contents page will appear, or the problem can not display the entire page; QQ instant messaging tools such as frequent dropped calls or tips visit timeout; has been set to automatically .Get IP address, it is not normal for every time; download slow ... ... a large proportion of these failures caused due to packet loss. .Next we look at how <BR> confirm fault detection, and solve the packet loss: <BR> <BR> common method is to test packet loss test by using the PING command, as shown, Requesttimedout. That occurred at the moment lost .package failure. .Replyfrom220.181.6.19: bytes = 32time = 10msTTL = 55 shows that data similar to normal. .In addition, software tools can also be tested through a number of specific test methods can be found in the Software documentation, this does not elaborate too much. .<BR> <BR> As mentioned earlier, the majority of packet loss failure caused by the following aspects: worms, network cable long distances (indoor theory of the effective transmission distance of 100 meters, but the practical application of generally not more than 50 .m is appropriate), cable failure (including the first metal oxide crystal, and other failures), the operating system itself fails, network card failure (due to network card and network device operating frequency does not match the frequency of failures, such as Gigabit Ethernet with Fast .network equipment; also may be the physical network card failure, such as equipment or experience the natural aging of lightning, etc.), network equipment failure (equipment arising from the impact the work environment, such as the environment is too wet, dry or serious electromagnetic interference, also may be due to hardware failure device .cause), network operators line problem. .<BR> <BR> Solution to control fault shown above is: disconnected from the network after killing the virus in safe mode, the appropriate cable length shortened, check the cable and re-production of crystal head, reinstall the operating system, adjust the network card or .network equipment to make it work in the same frequency, the replacement card, the replacement of network equipment or replacement of network equipment using the environment, contact your network operator solution..