Resolve how ADSL solves the speed bottleneck of Enterprises (1)

Operators in the modern social market economy are generating more and more enterprises of about people. Their daily operations are inseparable from the network. However, sometimes the network is not obedient and even crashes, I believe that enterprises are troubled at this time. When it is not cost-effective to rent optical fiber, what can we do to solve such problems for enterprises? This article provides a countermeasure worth a try.

Networking countermeasures for hundreds of Enterprises

Generally, such an enterprise applies for broadband services in the Telecommunications Bureau. It is reasonable to say that it will not be blocked. Why is the network so slow? In fact, we don't know. At this time, we usually use the ADSL leased line or virtual dial-up method to share the Internet. The bandwidth of each line is generally different from the bandwidth opened by the Telecom Department in different places between kb and 1 Mbit/s, it can be 2 MB at most). In addition, the bandwidth actually used should be lower than the external factors such as the line quality and the distance between the telecom Bureau.

Confusions of hundreds of Enterprises

We can simply calculate: even if the ideal 2 M bandwidth, for example, 40 users share the Internet at the same time, the bandwidth allocated to each user is 50 K, which is roughly equivalent to a common 56 k modem). For example, if 20 users share the Internet at the same time, the bandwidth allocated to each user is 128 K, which is roughly equivalent to a common k isdn line ), therefore, the network size of nearly one hundred enterprises with an increasing number of people is generally close to 100.) It is hard to understand if only one or two ADSL lines are used to block Internet access, this is the egress Bandwidth bottleneck that everyone can hear.

I recommend that an ADSL line support 30 or so employees to share the Internet at the same time, which is basically ideal. To address this problem, we will introduce a simple and effective solution: using multiple ADSL lines to connect multiple SOHO routers to the Internet. At present, the prices of SOHO routers and the cost of using the monthly subscription system for ADSL lines in the Telecommunications Bureau are both very low. This will not increase the economic cost, but will also rationally allocate Internet bandwidth, to ensure the speed and stability of Internet sharing, all machines are still in the same network segment and can access each other directly. So how can I set up a SOHO router so that clients under multiple routers can share the Internet and access each other? The key to setting a vro is to set the router to a different IP address and the default gateway address of different computers to a different vro. In this way, different vrouters can access the Internet after grouping.

Basic network device Selection

Networking should first consider the selection and construction scheme of Network basic equipment before buying computers and other devices. The selection of basic network devices is very important. I often find that some enterprises blindly increase the configuration of a single machine in terms of device Selection in order to make pictures cheap, and lower the level of basic network equipment. As a result, network problems continue and the speed of surfing the internet is extremely slow. as the foundation for building Internet cafes, basic network devices are difficult to be modified after installation. Therefore, we should carefully plan before networking.

Basic network device Selection

Basic network devices include network hubs, NICS, network cables, RJ45 crystal headers, and network miscellaneous such as PVC pipes. If the calculation is based on 100 computers in an enterprise, the M network switch requires about 6 to 16 ports ~ 8 sets, three adsl modem sets, three SOHO routers, 100 m Nic blocks, and seven boxes of Network cables are calculated as 100 m²), 240 RJ45 crystal heads, and several additional cables are recommended for backup), and several PVC tubes. Network cable selection is very important, it is best to use a brand name over 5 types of network cable wiring, such as AMP), do not save money in this regard. If you want to buy 5 categories of lines, pay attention to whether it is "fake 5 categories", that is, 3 categories of fake products, the crystal head should also choose, generally 2 yuan a good. PVC pipe is used to place the network cable plastic pipe, insulation and waterproof.