ZyXEL Communications VMG1312-T10C, User Manual

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Chapter 25 Remote Management
VMG1312-T10C User’s Guide
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one (SNMPv1) and version two (SNMPv2c). The next figure illustrates an SNMP management
operation.
Figure 145
SNMP Management Model
An SNMP managed network consists of two main types of component: agents and a manager.
An agent is a management software module that resides in a managed device (the Device). An
agent translates the local management information from the managed device into a form
compatible with SNMP. The manager is the console through which network administrators perform
network management functions. It executes applications that control and monitor managed
devices.
The managed devices contain object variables/managed objects that define each piece of
information to be collected about a device. Examples of variables include such as number of
packets received, node port status etc. A Management Information Base (MIB) is a collection of
managed objects. SNMP allows a manager and agents to communicate for the purpose of accessing
these objects.