HP StorageWorks XP24000 SNMP Agent Reference Guide, v01 (AE131-96006, June 2007)

Table 4 SNMP Trap Triggering Events
Events
Description
Acute failure detected.
All operations in a subsystem stopped.
Serious failure detected. Operation in a component where a failure occurred stopped.
Moderate failure detected. Partial failure.
Service failure detected. Minor failure.
An SNMP agent logs the most recent 256 traps, so you can see the trap history of a particular device.
SNMP Agent Command
Table 5 on pag e 13 shows the types SNMP Agent o perations.
Table 5 SNMP Agent O perations
Operation Description
GET
Obtains a specificMIB object value.
GET REQUEST is the request from an SNMP manager, and GET RESPONSE is the
agent’s response to that request.
GETNEXT
Continuously finds a MIB object.
GETNEXT REQUEST is the request from an SNMP manager, and GETNEXT RESPONSE
is the
agent’s response to that request.
TRAP
Reports an event (failure) to an SNMP manager.
TRAP occurs without a request from the SNMP manager.
Error Reporting
Table 6 on page 13 s hows errors to be reported for the REQUEST operations.
Table 6 SNMP Agent REQUEST Operations
Error
Description Corrective Act ion
noError(0)
Normal N/A
noSuch-
Name(2)
• There are no MIB objects that are
required. (Not supported).
•
The GETNEXT REQUEST command
that is specified for the following object
identifier of the last supported MIB
object is received.
Verify that the requested object is correct.
readOnly(4) SET REQUEST is received. SET operation is not supported.
genErr(5)
Error occurred for other reasons. Retry the operation.
SNMP Manager and SNMP Agent Interaction
When an SNMP Manager polls the agent, the following dialogue takes place:
• An SNMP manager sends a request packet to an SNMP agent, which requests data regarding
the
status of managed node.
• The SNMP agent sends a response packet back to the SNMP manager.
XP24000 SNMP Agent Reference Guide
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