Knowledge of full -light network

Full optical fiber network, that is, optical fiber is used as a communication medium, and through the deployment of optical fiber, combines the architecture and networking of the Ethernet, which constitutes the network. The special point is that the source access switch is released from the weak electric well in the floor. The full light connected to the switch through the optical fiber in the room through the optical fiber. For deployment, the new information point in the room can be connected from the nearby light switch to improve the efficiency of the expansion, and at the same time, the real 1: 10,000 mega/Gigabit enters the room. There are currently two types of solutions in Quanguang.com, one is PON, and the other is the full light Ether, from the technical route, one is the home broadband of the operator, and the other is the network of the corporate park. In the market, some manufacturers have also launched the Ethereum Optical Network. It is facing the application scenarios of education, business travel, office and other parks. Through the deployment method of new optical fiber, combined with Ethernet, through the simple structure of networking and SDN technology in the interconnection of all things in all things in all things. Times provide the park's business with high bandwidth, low latency, high flexible, minimalist operation and maintenance network carrying. Nowadays, our traditional network architecture is generally divided into three layers. The access layer network, convergence layer network, and core layer network are also divided into access layer switches, convergence layer switches and core layer switches.

The connection layer switch is directly connected to the client. The client here, such as: the computer of the hospital, the computer of the bank teller, the computer of the school teacher, and the school teacher.The convergence layer switch is usually used as a node convergence of the switch of the connection layer of a certain area, which has the effect of inheriting the upper and lower. It must be able to handle all communication volumes from the access layer switch and provide uplink links to the core layer. Therefore, compared with the connection layer switch, the convergence layer switch requires higher performance, fewer interfaces and higher switching rates.

The role of the core layer switch is to exchange data packets as fast as possible (the departments retrieved data, such as the doctor's history of the patient's medical history, the tellers view account information, the teacher calls the school database literature, etc.), which constitutes a high -speed exchange backbone, so The backboard bandwidth of the core layer switch is as fast as possible. In addition, the core layer reliability requirements are high, so the power supply is generally required.

A full -light network solution has appeared in recent years. OLT placed in the central computer room and gathered OLT. It can be regarded as a convergence layer switch. Divide multiple optical fibers through Odn (ODN) and connect to the optical cat. Light cats receive the terminal device. OLT is simply a bridge of core switches and ODN boxes. From the core layer to the optical cat, all of them are transmitted by fiber, saving a lot of space and equipment. There is no distance restriction, which is more convenient and safer than the previous traditional network.