Network architecture of 1000 mining machines
what network equipment do you buy now
in my humble opinion, I use soft routing (4-port to 8-port) with multiple 32 port Gigabit switches to form Gigabit networks
the networking of 1000 computers is a big project. In the network configuration, the application configuration of super network should be involved. For ordinary class C network, the 0 / 24 mask is not enough. The 0 / 22 mask must be used for networking to ensure that all computers are in the same LAN, otherwise there will be four network segments.
It needs a lot of machines. Several routers, several switches, lightning protection control, good LAN lines (cheap ones will cause great network loss). Just look at the purity of the copper in its cable. The higher the better.)
wiring scheme: at present, there are many problems in the marketing of wiring manufacturers& quot; It has been tested up to 300MHz & quot& quot; Support application& quot; Class 6 cable is the choice of Gigabit Ethernet& quot; Absolute exclusive supplier solutions & quot; And so on the market hype and the propaganda misleading will make the users confused
There is no doubt that many users are concerned about the installation rather than the copper cabling solutionusers can choose from various schemes according to their own needs and affordability. Cabling experts often suggest users to consider the following questions:
what is the current purpose and how is the future application development? General process planning
If only 100BaseT is planned to be used in the next 5-10 years, category 5E cable will be sufficient. However, if you are considering the application of broadband anytime in the near future, such as real-time video conference, 3D mode, desktop printing, etc., it is better to adopt six types of solutions
the functions of arson, lightning protection and heat dissipation of computer room should also be considered
more than 1000 LAN take the construction of Internet cafes as an example:
the information points of large Internet cafes are generally more than 1000, because a large number of end users use the network at the same time, especially to meet various harsh requirements of users, and at the same time to ensure the efficiency and stability of the whole network
therefore, we suggest that such large-scale Internet cafes need high-performance intelligent switches as the core switches, with Gigabit as the backbone to meet the operation needs of the heavy load network, and adopt VLAN technology to improve network security and performance and effectively suppress the network broadcast storm. The network design level is three-layer network, namely the core layer and access layer. The function of convergence layer is completed by the core layer
quidways6503 is adopted in the central switch, which is a three-layer network management switch and supports Gigabit backbone connection. We configure the number of Gigabit ports and 100m ports according to the number of Gigabit electrical ports and Gigabit switches in the access layer, so as to improve the Gigabit access of the backbone. The main server is also Gigabit access, It greatly improves the efficiency of the whole network
quidways6503 high end multi service switch with carrier level and high reliability
based on the switching engine of saliencei, the switch can provide 64gbps switching capacity, 48mpps packet forwarding capacity, realize fine management of users, and has powerful user management, authentication and billing functions
it has three service slots and can support 60ge interface at most; Support 4K VLAN, 16K MAC address table, far to meet the needs of Internet cafes, to meet the needs of network development in the next 2-3 years
The access layer switch of Huawei 3comquidway s6503 with high capacity, high density and molarization design adopts switch s1026t with Gigabit uplink port. The 1026t Ethernet switch provides 24 fixed 10Base-T / 100base TX adaptive ports and 2 10Base-T / 100base TX / 1000BASE-T uplink adaptive ports, which realizes Gigabit backbone, 100 megabytes to the desktop network environment. If the funds permit, if the terminal client is a gigabit network card, we can also consider the all Gigabit fool switch as the access switch to realize the whole network Gigabitnetwork topology diagram is shown in the following figure:
scheme features:
adopts three-layer network structure, has strong network scalability, has advanced network design, meets the needs of 2-3 years
high speed, high density access, convenient access for a large number of servers, and improves multiple GBIC ports, Meet the Gigabit access of different servers
use Gigabit Ethernet technology as the backbone to prevent network bottlenecks
deploy QoS throughout the network and provide end-to-end quality of service for users
effectively suppress network broadcast storm by dividing VLAN
support the whole line fast forwarding, ensure the network efficient and stable
typical application: Xi'an Hangong Internet bar (1100 units) dongdajie shop
access to the Internet
according to their own investment, after the establishment of a stable and secure network, it's time to let them access to Internet. At this time, you can make a lot of choices, using routers, NAT devices, or computers as servers to realize the whole LAN access to the Internet, Many websites have specific implementation methods
by default, the last 16 bits are the 16th power of the number of hosts = 2-2 = 65534
in the title, if you want to accommodate 1000 hosts, you can also directly use the calculation formula of the number of hosts = (nth power of 2-2)
when n = 8 (the last one is all hosts), the number of hosts = 254, which is far from enough
when n = 9, the number of hosts = 2 to the 9th power - 2 = 510, or can not meet the requirements
when n = 10, the number of hosts = 2 to the 10th power - 2 = 1022, meet the requirements< In other words, 10 bits of host bits are needed to be divided to meet the requirements
[1] therefore, the subnet mask is 172.16.0.0 255.255.252.0 (172.16.0.0 / 22)
[2] the number of subnets is also calculated by the formula to the nth power of = 2
because at this time, the subnet planning is carried out on the third bit, and the number of hosts accounts for 2 bits,
then the number of subnets uses 6 bits, That is, the 6th power of 2 = 64 subnet
address block = 256-252 = 4
effective IP range of subnet
172.16.0.0 172.16.0.1 --- 172.16.3.254
172.16.4.0 172.16.4.1 --- 172.16.15.254
172.16.252.0 172.16.252.1 --- 172.16.255.254
a total of 64 subnets.
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then click I, in the third column, and then click dig treasure
treasure digging can only be done in various schools and major cities
try a few more times and you'll get it
if you dig out the treasure chest, there will be a certain chance of the red sand bursting out
if you don't want to dig treasure or think it's troublesome to dig treasure, you can go to the trading area of several main cities to see if anyone sells it with cinnabar. You can buy it directly.