1: the reasons for the transmission equipment; the operator's room and the transmission media (line) unit's responsibility;
2: switching causes: the responsibility of the operator's room;
3: terminal causes; terminal causes belong to the user's responsibility; the user must ensure that their own equipment is intact;
Transmission problems are mainly to broaden the bandwidth, reduce the BER; terminal and switching problems are mainly to improve the processing speed of the network switch. In terms of the above three aspects of technology, there is a lot of work to be done. Is a very technical and complicated work, need a professional *** with cooperation.
First of all, you must be sure that your computer does not have a problem under the premise, and then the fault of the uplink circuit to check and arrange; to look for, belonging to the level by level, you can do only the cat's fault problems, in terms of experience: most of the problems in the user's "cat" ADSL; this phenomenon occurs in the high temperature of the summer, the main The problem is: the cat (ADSL) long run heat, solve the cooling problem can be:
1: natural cooling: the "cat" placed in a ventilated place, in order to facilitate heat dissipation;
2: forced cooling: the installation of a micro-fan, "cat" forced cooling.
2: Forced cooling: install a miniature fan to force the "cat" to dissipate heat.
3:Your "cat" may have been used for too long, and the performance of the "cat" is declining;
4:If you are doing IT, I suggest you: add a heat sink to the heat generating devices of the cat, and you can solve the problem.
Belongs to your above two work are done, and to ensure that there is no problem, you then find the operator troubleshooting
Correct a mistake: recently in browsing the site,
1: found that the lack of knowledge of fiber optics, fiber optics can improve the speed of the bias; you connect a 56K fiber optic cat, you can achieve high-speed high-capacity transmission? Not bad, fiber optics can transmit very high data, it is only a medium of transmission; only high-capacity (optical terminal or WDM equipment) transmission equipment and high-speed transmission medium with, can be achieved; here there is a "high-speed", there is a "capacity "; are high-speed, others once a second to pull 500 tons of goods, you once a second to pull 0.1 tons of goods, although the same speed, the results are different.
2: see some people on the network said: "download what software can improve network speed"; you download a software installed on your terminal, you can improve the speed of the network? This is not deceptive only talk? Networking is a net concept, which is qualitatively different from a terminal.
On the other hand, if you let the carriers change the cat for you, even if they do, the cat you change is still a private cat. The cats purchased by carriers are generally civilian products. Due to price considerations, the quality of the cats is not necessarily ideal, not as good as industrial products, not to mention military products and cats used by scientific research institutes; these producers pay more attention to economic benefits, the size of the equipment and the appearance of the aesthetics of the equipment, and do not give much thought to the heat dissipation of the equipment. Cats used in special sectors: mechanical properties, can be dropped from 30 meters high altitude, can still be used normally, and the technical parameters will not change; electrical characteristics (AC 220V cats): 60-480V can work stably; acid and alkali resistance: in the strong acid and alkali areas can be used continuously; insulation properties: the cat will be placed in the water for a month, does not affect its performance; temperature properties : It can work continuously for 120 hours under the ambient temperature of 70 degrees and keep the parameters unchanged. Can you spend that kind of money on it? Therefore, you might as well consider cooling the cat.
Thanks for taking my answer!