Routers Improve Network Security Performance


Application Advantages of Routers

1, because the router has the ability to carry on the complex route choice computation, can reasonable, the intelligent choice best path, therefore, is suitable for joins more than 2 large scale and has the complex network topology structure network

2, the router can isolate broadcast storm information in the source network, thus reducing and suppressing the impact of the broadcast storm

3, Multi-Protocol routers can connect networks using different communication protocols, Router so it can be used as a network interconnection platform using different communication protocols.

4, single protocol router interconnection network, the same or different protocols can be used on layer 1-2, and the same routable protocol is used on tier 3rd: The 4th tier requires the same or compatible protocol 5, Router the use of routers to isolate unwanted traffic, and thus the interconnected network maintains its own independent management control, Improve the security performance of your network. As a result, routers are often used as firewalls, restricting the internal network of intranet (Internet) and external networks to intranet access, Router which plays a role of network shielding.

6. Routers can also be used as network bridges to handle non-routable protocols

7, Router network segmentation function, can improve network performance, reduce the burden of host

8, able to provide reliable transmission, priority services, and do not need to communicate with each other network to maintain a permanent connection

Routers are characterized by:

Path selection, connection network, ACL (Access control list), flow control;

One of the functions of routers is to connect different networks, and the other is to select the route of information transmission. The choice of fast shortcut, Router can greatly improve communication speed, reduce network system communication load, save network system resources, Router improve network system unblocked rate, so that network system to play a greater benefit.

The router has the function of judging the network address and choosing the IP path, it can establish the flexible connection in the Multi network interconnection environment, use the completely different data grouping and the media access method to connect various subnets, Router the router only accepts the information of the source station or other router, belonging to the network layer's interconnection equipment. It does not care about the hardware devices used by the subnets, but requires software that is consistent with the network layer protocols.

Routers are divided into local routers and remote routers, which are used to connect network transport media, such as optical fiber, coaxial cable, twisted pair; Remote routers are used to connect remote transmission media and require appropriate devices such as telephone lines to be equipped with modems, Router wireless receivers and transmitters.

Routers are the main node devices of the Internet. Routers determine the forwarding of data through routing. Forwarding policy is called routing selection (routing), which is also the origin of router names (router, forwards). As the hub of interconnection between different networks, the router system constitutes the main thread of Internet based on TCP/IP, and it can be said that routers form the backbone of Internet. Its processing speed is one of the main bottlenecks of network communication, and its reliability and stability directly affect the quality of network interconnection.

Therefore, in the campus intranet, regional intranet, and even the entire Internet research field, the router technology is always in the core position, its development course and the direction, Router becomes the entire Internet research epitome. In the current situation of network infrastructure and information construction in China, the paper probes into the role, status and development direction of routers in interconnection networks, Router and it is of great significance for the research of Domestic network technology, network construction and the definition of the specious concepts of routers and networks interconnection in the network market.