Basic functions of SNMP

Next we will briefly introduce the content about the SNMP protocol. We all know that this Protocol is mainly used for network management. In addition, it is also a type of learning protocol that needs to be mastered. The most common Network Management Protocol in a router is the SNMP protocol. SNMP is the abbreviation of "Simple Network Management Protocol", which means "Simple Network Management Protocol" in Chinese ". SNMP was first proposed by an Internet Engineering Task Force (IETF) research team to solve router management problems on the Internet.

SNMP is currently the most common environment management protocol. SNMP is designed to be Protocol Independent, so it can be used on IP, IPX, AppleTalk, OSI, and other transport protocols used. SNMP is a series of protocol groups and specifications listed in the table below), which provides a method to collect Network Management Information from devices on the network. SNMP also provides a way for devices to report problems and errors to network management workstations.

At present, almost all network equipment manufacturers have achieved support for the SNMP protocol. SNMP is a public communication protocol that collects management information from devices on the network. The Device Manager collects the information and records it in the management information library MIB. This information reports device features, data throughput, communication overload, and errors. MIB are in common format. Therefore, SNMP management tools from multiple vendors can collect MIB information and present it to the system administrator on the Management Console.

By embedding SNMP in data communication devices, such as routers, switches, or hubs, you can manage these devices from a central station and view information graphically. Currently, many management applications can be run in most operating systems, such as Windows 95, Windows 98, Windows NT, and UNIX of different versions.

A managed device has a management agent responsible for requesting information and actions from the Management site. The agent can also provide information for the management site by means of traps. Therefore, some key network devices, such as hubs, routers, and switches, provide this management proxy, also known as SNMP proxy, for management through the SNMP protocol management site.