Enterprise-class router

Basic introduction

Router is usually used for many large enterprise network environments, compared with the switch and bridge, the router, especially the high-end router is implemented in the interconnection of backbone network compared to the switch and bridge. obvious advantage. The high intelligence of the router, extensive support for various routes, network protocols, and network interfaces, and its unique security and access control, etc. It is not available to other interconnects such as bridges and switches.

Enterprise router is actually a computer because its hardware and computer are similar; routers typically include processors (CPUs); different types of memory - mainly used for storage information; various ports - Mainly used to connect peripherals or allow it to communicate with other computers; operating systems - mainly provide various functions.

Common enterprise router typically has a 3-layer exchange function, providing the rate, quality of service (QoS), multipoint broadcast, powerful VPN, traffic control, support for IPv6, multicast, and The support capabilities of the characteristics of MPLS meet the requirements of enterprise users on security, stability, reliability, etc. The role of the router is connected to different networks, and the other is to select the line of information transmission. Choose a smooth shortcomings, which can greatly improve communication speed, mitigate enterprise network system communication load, save network system resources, and improve network system smoothness, so that enterprise network systems have played greater benefits.

Therefore, it is suitable for large-scale enterprise network connections, which can use complex network topology, load sharing and optimal paths to better handle multimedia, high security; save local area network Circular width, unwanted traffic, reduce host burden. The disadvantage of corporate routers is also very obvious, that is, non-routing protocols, complex installation, and high prices.

Buy Precautions

Keywords 1: Performance and redundancy, stability

The work efficiency of the router determines its performance, but also determines the operation The amount of load data and applications are applied. There are two ways to routers: software methods and hardware forwarding. Software methods generally use centralized routing, hardware forwarding can be divided into centralized and distributed hardware forwarding methods, the latter is a representative of a new generation of networks. Hardware forwarding methods can effectively improve the delay in data transmission and improve the performance of the network. The software stability and hardware redundancy of the router is also a factor that must be considered. The router with complete redundant design can greatly improve the reliability in the equipment operation, and the stability of the software system can also ensure the development of user applications.

Keywords 2: Interface

Enterprise network construction must consider bandwidth, continuity, and compatibility, the core router interface must consider interface types that can be supported simultaneously in one device For example, various copper core cables and fiber optic interfaces, 100M / Gigabit Ethernet, ATM interface, and high speed POS interfaces.

Keywords 3: Port Quantity

Select an applicable router inevitably consider the number of ports of routing, there are many choices on the market, you can go to hundreds of ports from several ports. Users must consider them according to their actual needs and future demand extensions. In general, for SMEs, dozens of ports generally meet the needs of enterprises; truly important is the choice of large enterprise port numbers, usually according to the number of network segments, and to enterprises The network may develop in the future to make a prediction, then do the choice, from dozens to hundreds of ports, can be reasonably selected according to the needs.

Keywords 4: Router support standard protocols and features

must consider various open standard protocols supported by routers when selecting routers, open standard protocols are a good premise of equipment interconnection The supported protocols describe flexible and efficient design. For example, see if it is not a full multicast routing protocol, is it supported by MPLS, is it supporting redundant routing protocol VRRP. In addition, while considering conventional IP routing, some companies will consider whether the router supports IPX, AppleTalk routing. Some equipment vendors will develop a number of private agreements for improving the efficiency of routing, and users should make their own needs in the choice of these features, but also to pay attention to the core technology should avoid adopting such technologies because The non-standard protocol illustrates the incompatibility between the products between different equipment vendors, which will sleep in a device manufacturer; and the non-standard protocol is often replaced by the new open protocol.

Keywords 5: Determining the difficulty of management method

The management of routers is particularly important. There are three mainstream configurations of the router. One is a fool-type router. It does not need to be configured. Its main user group is a family or SOHO; the second is the router using the simplest web configuration interface, its main user group is low SMEs, because it is an ordinary non-professional, so its configuration is not too complicated; the third way is to do direct configuration by means of the terminal through the dedicated configuration line to the router port, because the router that just bought There is no content in the configuration file, so after the user purchases the router, you must use this way to do basic configuration. This router is a large enterprise and professional user, so it is complicated than the low-end router. Many, and now high-end routers use full-English command configuration, which should be managed, configured by specialized professional people.

Keywords 6: Safety

Due to the popular network hackers and viruses, the protection and low ability of network equipment itself is also an important factor in choosing routers. The router itself uses RADIUS / TACACS + and other certifications, using a large number of access control list (ACL) to shield and isolation, users should pay attention to the ACL control when selecting the router. If the CPU check is used, the running performance of the router will be reduced, and the way to use hardware implementation will not have an additional burden on the operation.

Function value

With the arrival of the informationization era, the competition faced by modern enterprises is increasingly fierce, and the network has become an important part of the company, and the core equipment of the network is set up. Performance and unity directly determine the quality of the corporate network. Stable and reliable network is the foundation of enterprise development, and efficient work is the source of development.