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SNMP's Role in the OSI Model
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SNMP's Role in the OSI Model
Task: Understand what SNMP does within the OSI model
Conditions: Small classroom, comfortable temperature
Risks: Low risk, make sure you had a good night sleep so you dont pass out
Standards: For everyone to understand what SNMP does in the OSI model
first lets understand what the OSI Model is
Constructed of 7 layers
The Application layer
- it is the highest layer of the OSI model
- the location where applications work with the network
- provides the necessary services that support applications
- it provides the interface between the network protocol and the software running on the computer such as the Simple Network Management Protocol (SNMP)
Used to communicate with network elements as in routers, swithches, servers, and druckers (printers)
Defines the format of packets between a manager and an agent
Defines 8 different types of packets
Questions?
GetRequest – sent from manager (client) to agent (server)
GetNextRequest – mostly used to retrieve values of the entries in a table
GetBulkRequest – to retrieve a large amount of data
SetRequest – sent from manager to agent to set(store) a value
Response – in response to GetRequest or GetNextRequest
Trap – reports an event. For example, if the agent is rebooted, it informs
the manager and reports the time of rebooting.
InformRequest – sent from one manager to another remote manager to get the values of some variables under the control of the remote manager
Report – to report some types of errors between managers.