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Prestige 2802HW(L)-Ix Support Notes
All contents copyright (c) 2007 ZyXEL Communications Corporation.
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2. SNMPv1 Operations
SNMP itself is a simple request/response protocol. 4 SNMPv1 operations are defined as below.
• Get
Allows the NMS to retrieve an object variable from the agent.
• GetNext
Allows the NMS to retrieve the next object variable from a table or list within an agent. In
SNMPv1, when a NMS 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 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