Broadband uplink 30M and downlink 200M means that the rate of uploading local information to the network is 30÷8=3.75M/s, and the rate of downloading network information to the local is 25M/s. Broadband has two rates: uplink and downlink. The uplink rate is the rate at which local information is uploaded to the network; the downlink rate is the rate at which network information is downloaded to the local.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
Broadband has two rates, uplink and downlink, called uplink bandwidth and downlink bandwidth. Uplink rate: the rate at which local information is uploaded to the network; downlink rate: the rate at which network information is downloaded to the local.
Bandwidth uplink and downlink rates directly affect the Internet experience. Generally, the higher the downlink bandwidth, the faster the network download speed; especially with the advent of the "cloud era", users' Internet access is not limited to watching movies, chatting, but also various A variety of online live broadcasts, e-sports mobile games, Weibo and other sharing require faster and higher network uplink/download speeds!
The downlink speed used by broadband operators is different from the unit of downlink speed on Windows computers.
The unit of Windows computers is KBps, while the unit of broadband operators is kbps~
1B=8b
So if 1Mbps bandwidth is described in terms of download speed
1Mbps = 1024kbps = 1024/8 KBps = 128KB/s
That is, the highest in one second The download rate is 128KB
So if you have 50M broadband at home
50 *128 KB/s = 6400 KB/s = 6400 / 1024 MB/s = 6.25MB/s
Therefore, the theoretical maximum download speed of 50M broadband is only 6.25MB/s
So, a quick calculation method for the actual download speed is
Bandwidth ÷ 8 = Theoretical maximum peak Speed
Broadband uplink 30M and downlink 200M means that the rate of uploading local information to the network is 30÷8=3.75M/s, and the rate of downloading network information to the local is 25M/s.
However, due to the aging of operator lines, peak Internet access periods, multi-person sharing, wireless network transmission problems, etc., there is usually a gap of about 20% between the actual download speed and the theoretical download speed!
Generally speaking, the difference between uplink and downlink is not one or two megabytes. Assuming that the downlink broadband is 100 megabytes, the uplink is estimated to be only a few megabytes. In other words, if it is a 100 megabit broadband, the upload speed can only reach 1M/S, the download speed is generally about 9MB, but it is enough for ordinary families to use, and stable uploading is no problem.
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