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Optical fiber is a light conduction tool that uses the principle of total reflection of light in a fiber made of glass or plastic. Optical fiber bare fiber is generally divided into three layers: core, cladding and coating. ...

NGN puts forward the concept of layering and opening, and uses IP network and softswitch technology to transform telecom network from technology-driven to business-driven. As with any new thing, many key issues of NGN from signaling system to architecture are still being...

Routes are classified into three types: static route, dynamic route, and direct route. In the method of manual input static routing, in order to solve the routing problem of the entire ip world, it is very weak in reality. So, the experts thought of letting the router from the home, tell the near...

Routes are classified into three types: static route, dynamic route, and direct route. In the method of manual input static routing, in order to solve the routing problem of the entire ip world, it is very weak in reality. So, the experts thought of letting the router from the home, tell the near...

VPN is a remote access technology, which simply means using a public network link (usually the Internet) to set up a private network. For example, one day the boss sends you on a business trip to a place where you want to access the internal network of the unit, this access is a remote access. Ho...

Multiprotocol Label Switching (MPLS) is a new IP backbone network technology. MPLS introduces the connection-oriented label switching concept on connectionless IP networks, and combines Layer-3 routing technology with Layer-2 switching technology, giving full play to the flexibility of IP routing...