as well.
A.3.2. Applications that Receive Responses
The SNMP engine matches the incoming response messages to outstanding
messages sent by this SNMP engine, and forwards the response to the
associated application using the processResponsePdu primitive, as
described in section 4.2.
A.3.3. Applications that Receive Asynchronous Messages
When an SNMP engine receives a message that is not the response to a
request from this SNMP engine, it must determine to which application
the message should be given.
An Application that wishes to receive asynchronous messages registers
itself with the engine using the primitive registerContextEngineID as
described in section 4.2.
An Application that wishes to stop receiving asynchronous messages
should unregister itself with the SNMP engine using the primitive
unregisterContextEngineID as described in section 4.2.
Only one registration per combination of PDU type and contextEngineID
is permitted at the same time. Duplicate registrations are ignored.
An errorIndication will be returned to the application that attempts
to duplicate a registration.
All asynchronously received messages containing a registered
combination of PDU type and contextEngineID are sent to the
application which registered to support that combination.
The engine forwards the PDU to the registered application, using the
processPdu primitive, as described in section 4.2.
A.3.4. Applications that Send Responses
Request operations require responses. An application sends a
response via the returnResponsePdu primitive, as described in section
4.2.
The contextEngineID, contextName, securityModel, securityName,
securityLevel, and stateReference parameters are from the initial
processPdu primitive. The PDU and statusInformation are the results
of processing.
A.4. Access Control Model Design Requirements
An Access Control Model determines whether the specified securityName
is allowed to perform the requested operation on a specified managed
object. The Access Control Model specifies the rules by which access
control is determined.
The persistent data used for access control should be manageable
using SNMP, but the Access Control Model defines whether an
instantiation of the MIB is a conformance requirement.
The Access Control Model must provide the primitive isAccessAllowed.
B. Full Copyright Statement
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