PMG5318-B20B User’s Guide
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SNMP
24.1 SNMP Agent
Simple Network Management Protocol is a protocol used for exchanging management information
between network devices. Your GPON Device supports SNMP agent functionality, which allows a
manager station to manage and monitor the GPON Device through the network. The GPON Device
supports SNMP version one (SNMPv1) and version two (SNMPv2c). The next figure illustrates an
SNMP management operation.
Figure 94
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 GPON 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.
SNMP itself is a simple request/response protocol based on the manager/agent model. The
manager issues a request and the agent returns responses using the following protocol operations:
• Get - Allows the manager to retrieve an object variable from the agent.
