What does router sn mean?

In routers, sn stands for "Serial Number", which means "serial number" and refers to the factory number of the router. The router serial number (SN) and physical address are both hardware identifiers, which are unique; the router will be under warranty only if the router's serial number is kept intact. The router serial number SN can be seen directly in the manual and on the back of the router.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Router (Router) is a device that connects various LANs and WANs in the Internet. It will automatically select and set routes according to the channel conditions, and send signals in order using the best path. It is the main node device of the Internet. Routers decide the forwarding of data through routing. The forwarding strategy is called routing, which is where the name of the router comes from (router, forwarder).

The sn in the router is the serial number, also called Serial Number (SN for short).

The router serial number and physical address are both hardware identifiers, which are unique. The SN on the back of the router is the serial number of the router. The router will be under warranty only if the serial number of the router is kept intact.

For some key products, or relatively expensive products, a serial number will be assigned to each individual product from the beginning of purchase or from the beginning of finished product storage, and this serial number will be used throughout the entire sales of the product. , delivery, maintenance, service and other processes; some companies even use the serial number as a certificate for providing services. This type of enterprise requires the management of serial numbers to be accurate to a certain individual product, and uses this as the core basis for tracking sales and services. Common application examples: laptops, cameras, etc., all use SN management.

You can directly see the router serial number SN in the manual and on the back of the router.

The letters indicate the content as follows:

1. SN is the serial number of the router, which is the serial number of the product when it leaves the factory.

2. MAC is the physical address of the router, which is translated as media access control, or physical address or hardware address. It is used to define the location of network devices. Therefore each machine has a unique MAC address.

3. PIN is the PIN code for wireless connection, which is the identification code for the router’s QSS quick connection function.

Extended knowledge

Router is a device that connects various local area networks and wide area networks in the Internet. It will automatically select and Set the routing to send signals in order using the best path. Routers have been widely used in all walks of life, and products of various grades have become the main force in realizing internal connections of various backbone networks, interconnection between backbone networks, and interconnection between backbone networks and the Internet. Routers are divided into local routers and remote routers. The local router is used to connect network transmission media, such as optical fiber, coaxial cable, and twisted pair; the remote router is used to connect remote transmission media and requires corresponding equipment, such as telephone lines. Equipped with a modem, wireless must go through a wireless receiver and transmitter.

The router is the main node device of the Internet. Routers decide the forwarding of data through routing. The forwarding strategy is called routing, which is where the name of the router comes from (router, forwarder). As a hub for interconnection between different networks, the router system forms the main body of the Internet, an international Internet based on TCP/IP. It can also be said that routers form the skeleton of the Internet. Its processing speed is one of the main bottlenecks of network communication, and its reliability directly affects the quality of network interconnection. Therefore, router technology has always been at the core in campus networks, regional networks, and even the entire Internet research field, and its development history and direction have become a microcosm of the entire Internet research. At a time when my country's network infrastructure and information construction are in the ascendant, this paper discusses the role, status and development direction of routers in interconnection networks, as well as the domestic network technology research and network construction, as well as the clear understanding of routers and network interconnection in the network market. Various specious concepts have important significance.

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