ZyXEL Communications SBG5500 Series User Manual page 214

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.
• GetNext - Allows the manager to retrieve the next object variable from a table or list within an agent.
In SNMPv1, when a manager wants to retrieve all elements of a table from an agent, it initiates a Get
operation, followed by a series of GetNext operations.
• Set - Allows the manager to set values for object variables within an agent.
• Trap - Used by the agent to inform the manager of some events.
Click Configuration > Network Management > SNMP to open the following screen. Use this screen to
configure the SBG SNMP settings.
Figure 154 Configuration > Network Management > SNMP
The following table describes the fields in this screen.
Table 97 Configuration > Network Management > SNMP
LABEL DESCRIPTION
SNMP Agent Select the check box to allow a manager station to manage and monitor the SBG through
the network via SNMP.
Get Community Enter the password for the incoming Get and GetNext requests from the management
station. The default is public and allows all requests.
Set Community Enter the Set community, which is the password for incoming Set requests from the
management station. The default is public and allows all requests.
Trap Community Enter the Trap Community, which is the password sent with each trap to the SNMP manager.
System Name Enter the system name of the SBG.
System Location Specify the geographic location of the SBG.
System Contact Enter the name of the person in charge of the SBG.
Trap Destination Type the IP address of the station to send your SNMP traps to.
Chapter 12 Network Management
SBG5500/3310 Series User's Guide
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