The functional level of the router

Router usage level:
Routers can be seen everywhere in various levels of the internet network. Access to the network enables households and small businesses to connect to an internet service provider; Routers in enterprise networks connect thousands of computers on a campus or within a company; Router terminal systems on backbone networks are usually not directly accessible. They connect ISPs and enterprise networks on long-distance backbone networks. The rapid development of the Internet has brought different challenges to backbone network, enterprise networks and access networks. The backbone network requires the router to forward a few links at high speed. Enterprise level routers not only require a large number of ports and low prices, but also require simple and convenient configuration, and provide QoS. Enterprise level routers like Feiyuxing provide SmartQoS III. 5G Outdoor Cpe
1. Access router

Connect small business customers within a home or ISP through an access router. Access routers have begun to not only provide SLIP or PPP connections, but also support virtual private network protocols such as PPTP and IPSec. These protocols need to be able to run on each port. Technologies such as ADSL will soon increase the available bandwidth of households, which will further increase the burden on access routers. Due to these trends, access routers will support many heterogeneous and high-speed ports in the future, and can run multiple protocols on each port, while also avoiding telephone switching networks. 4G Outdoor CPE

2. Enterprise level router
Enterprise or campus level routers connect many terminal systems, with the main goal of achieving as many endpoint interconnections as possible in a cost-effective manner and further requiring support for different quality of service. Many existing enterprise networks are Ethernet segments connected by hubs or bridges. Although these devices are cheap, easy to install, and do not require configuration, they do not support service levels. On the contrary, networks with routers can divide machines into multiple collision domains and thus control the size of a network. In addition, routers also support a certain level of service, allowing for at least multiple priority levels. But the cost per port of the router is higher, and a lot of configuration work needs to be done before it can be used. Therefore, the success or failure of enterprise routers depends on whether they provide a large number of ports with low cost per port, whether they are easy to configure, and whether they support QoS. Additionally, it is required that enterprise level routers effectively support broadcasting and multicast. Enterprise networks also need to handle various LAN technologies left over from history and support multiple protocols, including IP, IPX, and Vine. They also need to support firewalls, packet filtering, and a large number of management and security policies, as well as VLANs. Wifi 5 Outdoor Wireless Ap
3. Backbone level router
Backbone level routers enable the interconnection of enterprise level networks. The requirements for it are speed and reliability, while the cost is secondary. Hardware reliability can be achieved through technologies used in telephone switching networks, such as hot backup, dual power supplies, and dual data paths. These technologies are almost standard for all backbone routers. The main performance bottleneck of backbone IP routers is the time spent searching for a certain route in the forwarding table. When a packet is received, the input port looks up the destination address of the packet in the forwarding table to determine its destination port. When the packet is shorter or when it needs to be sent to many destination ports, it will inevitably increase the cost of routing lookup. Therefore, placing some frequently accessed destination ports in the cache can improve the efficiency of routing lookup. Both input buffering and output buffering routers have bottleneck issues in routing lookup. In addition to performance bottlenecks, the stability of routers is also a frequently overlooked issue.
4. Terabit router
Among the three main technologies used in the future core internet, fiber optic and DWDM are already mature and readily available. Without routers that correspond to the original bandwidth provided by existing fiber optic and DWDM technologies, the new network infrastructure will not be able to fundamentally improve performance. Therefore, developing high-performance backbone switches/routers (terabit routers) has become an urgent requirement. The technology of terabit routers is currently mainly in the development and experimental stage.
5. Multiple WAN routers

The dual WAN router has two physical WAN ports as external network access, allowing internal computers to use two external network access lines simultaneously through the load balancing function of the dual WAN router, greatly improving network bandwidth. Currently, dual WAN routers mainly have the advantages of "bandwidth convergence" and "one network, two lines", which traditional single WAN routers cannot achieve.

1. Broadband router
Broadband router is an emerging network product in recent years, which has emerged with the popularization of broadband. Broadband routers integrate functions such as routers, firewalls, bandwidth control, and management in a compact box, featuring fast forwarding capabilities, flexible network management, and rich network status. Most broadband routers are optimized and designed for Chinese broadband applications, which can meet different network traffic environments and have good grid adaptability and network compatibility. Most broadband routers adopt highly integrated designs, integrating 10/100Mbps broadband Ethernet WAN interfaces and built-in multi port 10/100Mbps adaptive switches, making it convenient for multiple machines to connect internal networks and the Internet. They can be widely used in homes, schools, offices, internet cafes, community access, government, enterprises, and other occasions.
2. Modular router
Modular routers mainly refer to routers whose interface types and some extended functions can be configured according to the actual needs of users. These routers generally only provide the most basic routing functions when leaving the factory, and users can choose corresponding modules based on the type of network they want to connect to. Different modules can provide different connection and management functions. For example, the vast majority of modular routers can allow users to choose the type of network interface. Some modular routers can provide functional modules such as VPN, while others also provide firewall functionality, and so on. Currently, most routers are modular routers.
3. Non modular router
Non modular routers are all low-end routers, and they are commonly used in household use. This type of router is mainly used to connect small business customers within homes or ISPs. It not only provides SLIP or PPP connections, but also supports virtual private network protocols such as PPTP and IPSec. These protocols need to be able to run on each port. Technologies such as ADSL will soon increase the available broadband for households, which will further increase the burden on access routers. Due to these trends, this type of router will support many heterogeneous and high-speed ports in the future, and be able to run multiple protocols on each port, while also avoiding telephone switching networks.
4. Virtual router
Virtual routers rely on virtual reality. Recently, some new technological breakthroughs related to IP backbone network equipment have paved the way for the realization of new Internet services in the future. Virtual routers are such a new technology that makes some new internet services possible. Through these new services, users will be able to control network performance, internet addresses and routing, as well as network security. RND Network Company in Israel is a manufacturer that provides solutions from local area networks to wide area networks, and the company was the first to propose the concept of virtual routing.
5. Core router
Core routers, also known as "backbone routers," are routers located at the center of the network. A router located at the edge of a network is called an access router. Core routers and edge routers are relative concepts. They all belong to routers, but have different sizes and capacities. The core router of one layer is the edge router of another layer.
6. Wireless Router
A wireless router is a router with wireless coverage function, mainly used for users' internet access and wireless coverage. The popular wireless routers in the market generally support four access methods: dedicated line XDSL/cable, dynamic XDSL, and PPTP. They also have other network management functions, such as dhcp services, nat firewalls, MAC address filtering, and so on.
7. Single arm router

The concept of a single arm router appeared before a three-layer switch, where communication between various VLANs in the network can be achieved through ISL association. In that way, the router becomes a "single arm router", and data transmission between VLANs needs to be processed by the router before being output, so that most packets in the network within the same VLAN will be transmitted at high speed between switching devices without passing through the router. The disadvantage of this routing method is that it is still a centralized routing strategy. Therefore, multiple redundant "single arm" routers are generally set up on the backbone network to share data processing tasks, which can reduce bottleneck problems caused by routers and add redundant links. However, if the data transmission volume between VLANs in the network is relatively large, bottlenecks will form at the router. Single arm routers are now largely replaced by layer 3 switches.

8. Wireless network router
A wireless network router is a communication device used to connect wired and wireless networks. It can transmit and receive wireless signals through Wi Fi technology to communicate with devices such as personal digital assistants and laptops. Wireless network routers can easily establish a computer network without cables.
However, when transmitting data through wireless networks outdoors, its speed may be affected by the weather. Other wireless networks include infrared, Bluetooth, and satellite microwave.
9. Intelligent flow control router
The intelligent flow control router can automatically adjust the bandwidth of each node, so that each node can achieve the fastest network speed without limiting the speed of each node, which is its biggest feature. Intelligent flow control routers are often used on the backbone of telecommunications, such as Huawei and Cisco. Internet cafes, hotels, etc. often use internet star routers.
10. Dynamic speed limiting router
Dynamic speed limit router is a type of router that can calculate the bandwidth required by each user in real time, accurately analyze the type of user's internet connection, and allocate bandwidth reasonably to achieve on-demand allocation and reasonable utilization. It also has the intelligent allocation function of priority channels. This function is mainly applied to internet cafes, hotels, residential areas, schools, etc. The most commonly used internet cafes are Olay routers.
11. Soft router
The use of desktop computers or servers in conjunction with software to form routing solutions mainly relies on software settings to achieve the functionality of routers, commonly including small grass soft routing, sea spiders, and so on.