Simple Network Management Protocol (SNMP) is a standard network management protocol widely used in TCP/IP networks. SNMP provides a way to manage devices through a central computer running network management software (that is, a network management workstation).
After studying this chapter, we should be able to:
- Familiar with basic concepts of SNMP
- Master the basic configuration of SNMP
18.1 Why SNMP is needed
With the rapid development of network technology, while the network is becoming popular, it also brings some problems to network management:
- The number of network devices increases geometrically, which makes it more and more difficult for network administrators to manage devices. At the same time, as a complex distributed system, the network covers an ever-expanding area, which also makes it possible to monitor and control these devices in real time. Troubleshooting becomes extremely difficult.
- There are various types of network devices, and different device manufacturers provide different management interfaces (such as command line interfaces), which makes network management more complicated.
In this context, SNMP came into being, and SNMP is widely used in T