ZyXEL Communications P-2608HWL-Dx Series 用户手册

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P-2608HWL-Dx Series User’s Guide
Chapter 23 Remote Management Configuration
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23.7  SNMP
Simple Network Management Protocol (SNMP) is a protocol used for exchanging 
management information between network devices. SNMP is a member of the TCP/IP 
protocol suite. Your ZyXEL Device supports SNMP agent functionality, which allows a 
manager station to manage and monitor the ZyXEL Device through the network. The ZyXEL 
Device supports SNMP version one (SNMPv1) and version two (SNMPv2). The next figure 
illustrates an SNMP management operation.
Note: SNMP is only available if TCP/IP is configured.
Figure 163   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 ZyXEL 
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.