Technical Reference; About Snmp - ZyXEL Communications XGS2210-28 User Manual

Table 203 Management > Access Control > Remote Management (continued)
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45.7 Technical Reference

This section provides technical background information on the topics discussed in this chapter.

45.7.1 About SNMP

Simple Network Management Protocol (SNMP) is an application layer protocol used to manage and
monitor TCP/IP-based devices. SNMP is used to exchange management information between the
network management system (NMS) and a network element (NE). A manager station can manage and
monitor the Switch through the network via SNMP version 1 (SNMPv1), SNMP version 2c or SNMP version
3. The next figure illustrates an SNMP management operation. SNMP is only available if TCP/IP is
configured.
Figure 353 SNMP Management Model
An SNMP managed network consists of two main components: agents and a manager.
An agent is a management software module that resides in a managed Switch (the Switch). An agent
translates the local management information from the managed Switch 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 Switch. Examples of variables include number of packets received,
node port status and so on. 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.
Chapter 45 Access Control
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your changes to the non-volatile memory when you are done configuring.
Click Cancel to begin configuring this screen afresh.
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