P-660 Series Support Notes
from an agent, it initiates a Get operation, followed by a of GetNext
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 SNMPv1 messages contains two part. The first part contains a version and a
community name. The second part contains the actual SNMP protocol data unit (PDU)
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 Specifies the type of PDU.
• Request ID Associates requests with responses.
• Error status Indicates an error and an error type.
• Error index Associates the error with a particular object variable.
• Variable-bindings Associates particular object with their value.
• 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
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All contents copyright © 2005 ZyXEL Communications Corporation.
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