Router development history

As early as 40 years ago, there have been discussions on routing technology, but until the 1980s routing technology gradually into commercial applications. The reason why routing technology is not widely used in the beginning mainly because of the advent of the 1980s before the network structure is very simple, routing technology useless. Large-scale Internet only became popular for the development of routing technology to provide a good foundation and platform.

Limit Internet access bottleneck benign operations:

PC size 60-100 units Internet network, SOHO router to meet the basic needs of network access. But after more than 100 the number of PC, if you still use SOHO router access, the entire network system is relatively fragile, Which is mainly manifested in the following aspects:

The first is the low performance. To save costs, SOHO routers commonly used general performance CPU, memory speed is relatively slow. In a particular use, there will be slow download speeds, the game will be the card, this is the performance of low performance.

Followed by poor stability, easily dropped, and this is the most taboo gamers. Some SOHO router in a small number of users they can maintain a stable connection; but if the size is increased somewhat, it is difficult to ensure the stability of the network, and when network traffic increases, it will frequently restarted. And SOHO router using ordinary external power supply, when the voltage fluctuations, power SOHO routers can not be guaranteed.

The third difference is the heat. Under normal circumstances, SOHO routers are small, there is no reasonable thermal design the machine, and Internet cafes are usually open 24 hours, so SOHO router heat will become a problem. The most direct impact on the router overheating is unstable.

Finally, a small number of PC support. Small SOHO router memory capacity (typically 2M-8M), FLASH capacity is small (generally only 1M), a limited number of users supported, essentially carried out the largest number of NAT within 1024. You can do the math, to open a Web page, it takes approximately 10-50 NAT number of processes, so SOHO router supports PC small amount, it is difficult for extensions upgrade.