Meng new must learn how to count Gigabit network?

This morning, Gigabit Ethernet was released on the 360th, not to mention the wire. Some small partners asked whether it is possible to use gigabit cable to implement Gigabit Ethernet. It is precisely that Xiao Bian used this topic to give everyone knowledge about Gigabit.

Gigabit is a wired patent?

The answer is that at least as of now, Xiao Bian believes that the future of wireless can exceed the threshold of Gigabit, but in a short period of time, it also refers to cable Gigabit. To achieve the Gigabit cable part, not only the cable problem, but also whether the router supports Gigabit. In brief, Fast Ethernet + Fast Ethernet = Fast LAN; Fast Ethernet + Fast Ethernet = Fast LAN; Gigabit Routing + Gigabit Cable = Gigabit LAN; Gigabit, 100M Lan Routing + Gigabit LAN = 100Mbps LAN, it must be said that the router of this structure is really a pit person. There is a special one with Gigabit Routing + Gigabit Ethernet = Fast Ethernet, this special case is actually not a device problem, but the use of cable - some home decoration time in order to save trouble, with a super five line Achieved the way of network cable + phone line, specifically, there are 8 lines of the core of the super five cable, but only 4 cable cores are used for the network, and other lines are connected to the phone line, so that 4 lines The core can only operate at 100Mbps and cannot provide 1000Mbps connection speed.

Do not boast the Gigabit cable

In addition to routers, the focus may be seen by everyone, and the role of Gigabit network lines cannot be ignored. Nowadays, Gigabit network cable standards on the market are called CAT-5, CAT-5e, CAT-6 and CAT-6A, and finally the so-called "CAT-7".

Xiao Bian here to give everyone to popularize, CAT-5 and CAT-5e understand, in fact, is the five types of lines and ultra-five lines, the former specification is 100MHz bandwidth, providing 100Mbps transmission capacity, the latter is 125MHz bandwidth, providing 1000Mbps transmission capability. The CAT-6 is commonly known as the Category 6 cable, which provides a bandwidth of 250 MHz and can be used in Gigabit networks. The CAT-6A is a technical standard used by 10 Gigabit networks. Starting from this standard cable, hand-made crystals are used. The head (cable head) is not allowed. There are also stringent requirements for installation and construction. In fact, there are few family needs. Then there is this so-called CAT-7. Nowadays, quite a few network cables say that they are seven types of lines. Strictly speaking, this CAT-7 is just an agreed-upon name, not a recognized standard!

At present, the Super Category 5 and the most common Category 6 are sufficient, as long as they are not fake and meet the standards. There is no problem in implementing Gigabit LAN in conjunction with Gigabit routing. The so-called Super Seven is not used. miss you. We must bear in mind this point. Do not think that the higher the target, the better. In fact, it does not apply.

Where is Gigabit?

Why is Gigabit cable so important? This is divided into two aspects. The first aspect is preparation for 100Mbps broadband, and 100Mbps broadband is gradually becoming popular. It is reasonable to say that it is sufficient to use 100Mbps routing, but it is not. According to Xiao Bian's communication with the staff of a telecom operator's computer room, under 100M cats (routes), the speed of 100M broadband is basically maintained at the nominal 90%, that is, about 90Mbps, in order to completely release 100M broadband. The best equipped with Gigabit light cats (routing).

The second aspect is the stability of the connection. This mainly refers to packet loss rate and response time. Whether it is 2.4G or 5G wireless routing, the packet loss rate is a very easy to interfere with the outside world. In order to fully guarantee the stability and reduce the packet loss rate, the wired network is still the best choice; and the response time is Known as the ping value, there is no doubt that wired broadband is also the least affected one - and the visible future for a long time, neither of these two advantages will change. How important are these two indicators? In fact, when watching videos or downloading, the impact of the two is very small, but if it is a game player, the impact of these two items will be great. Therefore, if it is a game player, it is necessary to select a wired LAN.

It is also said that Gigabit LAN transmission speed is also stronger than the wireless network. This is because when the signals overlap and the interference is severe, the wired network is more stable and the performance is better. But here is only for comparison of 5G 802.11AC wireless and Gigabit cable network, 2.4G 802.11n wireless even if there is no interference signal, it is not comparable to the cable's continuous transmission capability. In addition, the vast majority of laptops or mobile devices currently have a maximum connection speed of 866 Mbps, and the maximum continuous transmission capacity can only be said to be close to a gigabit cable network. What's more, many low-to-medium price products and even some cost-effective games for signboards Still using a 433Mbps wireless network card, this is even more difficult to compare with Gigabit.

In short, the wired network pursues a more stable performance, while the wireless network pursues a more convenient and efficient usage. Both of these will exist in parallel for a long time in the future until smart scientists can solve the wireless interference.