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Prestige 2602RL-D3A 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