Shulou(Shulou.com)06/01 Report--

Unwittingly in this society for several years, repaired the computer, played soy sauce, bumped into the end full-time wireless for several years, during the period also changed jobs in several companies, basically big companies, but the jobs have not been changed to do wireless maintenance. To sum up, all kinds of strange problems of several companies are more or less the same for wireless, either the initial deployment is unreasonable or the later maintenance personnel will not be configured.

Why would you say that? I have bought my own Lei to explain: at that time, due to the expiration of the building rented by the company, the new building had not yet been completed, and I rented a building temporarily for the office, with an open office of about 2,000 square meters on each floor on the fifth floor. When I received the news, there were still three days to go before I moved, and I had to decorate, go electricity, and so on. There was basically no time for every station to go weak. The leader asked us if there was any good way. At that time, my younger brother was in charge of wireless in the company, and I felt good about wireless. I immediately patted my head and said, "Let's use wireless to work with wireless." After that, the general buddies were frightened, and later the leader felt that there was really no good way, so he said, "OK, why not try wireless, and then buy a batch of 5G network cards for desktops to use." After deliberating and deciding to do it, I went to the scene to see the environment the next day. I thought very well at that time. Since it is an all-wireless office, the load cannot be too high, and the maximum number of users in a single AP is 30. Good guys design in this direction, the first floor finally determined that the least number of points are more than 10, the most are more than 20 AP, but a total of five layers finally deployed almost 110AP. Fortunately, my younger brother also knew about wireless at that time. The power channels were all manually specified, and the speed limit was set, so it was fine at first, but as the floor of the old building expired, the number of people here gradually increased, and wireless became more and more stuck day by day. All kinds of testing, debugging, and finally found:

First, there are too many AP deployments, and 2.4G signal interference is large. Turn off AP

Second, the traffic is too large, R & D and testing in the all-wireless environment are all wireless, daily downloads, and packet transmission. Speed limit again.

The flow has also come down, and the interference of AP has also come down, but some floors are still very stuck. Finally, it is found that the beam of some floors is about 3.5m high, the AP is high, and the coverage is large, resulting in a weak signal received. Found the reason, but found that the height can not be reduced, ah, to reduce the height of construction, and then this side will soon have to move to the new building, but also can not apply for money, how to do? Lifting signal, this layer separates 2.4G and 5G, these AP put 2.4G signal alone, do not send 5G signal, other AP send 5G signal do not send 2.4G signal, so as to ensure wireless transmission.

During all kinds of tinkering, the bitterness and bitterness of them will not be described one by one, but fortunately, the pit was successfully filled out in the end!

Finally, thank you for reading my nagging and sending you a few small experiences to deploy and optimize wireless. I hope it will be of some help to you:

First, AP should not be deployed too densely. The load capacity of AP is actually very strong.

2. AP should not be deployed too high. It is best between 2m and 2.5m.

Third, the internal interference is far more dangerous than the external interference. If you think the interference is large, check the interference between AP and AP.

Fourth, do not trust all kinds of advanced algorithms, if possible, manually specify 2.4G power and channel

Fifth, the low rate must be turned off, which is an important reason for not roaming, but also affects your transmission rate.

6. If your company has more research and development and high network quality requirements, never deploy an all-wireless office environment

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