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Figure 5-13 “Local Events” web page
5.3 SNMP configuration
5.3.1 General function
SNMP is a non-proprietary standard for Ethernet management and it defines commands for
reading and writing information and defines formats for error and status messages. SNMP
is also a structured model, which consists of agents and their relevant MIB (Management
Information Base) and a manager. The manager is a software tool that is executed on a net-
work management station.
The agents are located inside switches, bus terminals, routers, and other devices that sup-
port SNMP. The task of the agents is to collect and provide data in the MIB. The manager
regularly requests and displays this information. The devices can be configured by writing
data from the manager to the MIB. In the event of an emergency, the agents can also send
messages (traps) directly to the manager.
All configuration modifications, which are to take effect after a switch restart, must be saved
permanently using the “flWorkFWCtrlConfSave” object. The objects sysName, sysLoca-
tion, sysContact of the MIB-II are exceptions to this in PROFINET mode. These objects trig-
ger a save operation in PROFINET mode when they are written with a new value.