ZyXEL Communications P-660R-T1 Support Notes page 86

from a agent, it initiates a Get operation, followed by a of G n
operations.
•
Set
Allows the NMS to set values for object variables within an agent.
•
Trap
Used by the agent to inform the NMS of some events.
The N S MPv1 message
com u m nity name. The second part contain
specifying the operation to be performed (Get, Set, and so on) and the object values
involved in the operation. The following figure shows the SNMPv1 message format.
The SNMP PDU contains the following fields:
•
PDU type
•
Request ID
•
Error status
•
Error index
•
Variabl e-bindings
• ZyXEL SNMP Implementation
ZyXEL currently includes SNMP support in some P-660 routers. It is implemented
based on the SNMPv1, so it will be able to communicate with SNMPv1 NMSs.
Further, users can also add ZyXEL's private MIB in the NMS to monitor and control
additional system variables. The ZyXEL's private MIB tree is shown in figure 3. For
All contents copyright © 2005 ZyXEL Communications Corporation.
s contains two part. The first part contains a version and a
Specifies the type of PDU.
Associates requests with responses.
Indicates an error and an error type.
Associates the error with a particular object variable.
Associates particular object with their value.
P-660 series Support Notes
s the actual SNMP protocol data unit (PDU)
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