Traps
WebLogic’s SNMP agent can be configured to send a number of notification traps — for instance, when a log message is logged, when an attribute value has changed, or when configured thresholds for a monitor are exceeded.
Each trap notification is sent as a trap protocol data unit (PDU), which includes the following standard information:
- Enterprise OID
The enterprise OID field in all trap notifications sent by WebLogic is set to WebLogic’s OID, .
1.3.6.1.4.140.625.- Agent address
The agent address of the PDU is set to the IP address of the WebLogic server on which the trap was generated.
- Generic trap type
The generic trap type of the PDU indicates the generic type of the trap. A value of
0is used when the trap represents the start of the Administration Server. A value of4indicates an authentication failure and is generated when an incorrect community string is sent to WebLogic. Finally, a value of6is set for all other traps. Note that the Administration Server coldstart trap (0) and the authentication failure trap (4) are sent automatically in any configured SNMP agent.- Specific trap types
Different SNMP agents are permitted to further qualify the enterprise trap types by indicating an enterprise-specific trap type. Table 22-2 lists the specific trap types used in WebLogic.
Table 22-2. WebLogic-specific trap type values and their descriptions
|
Value |
Description |
|---|---|
|
65 |
This trap type is sent when a Managed Server that was previously down is started. |
|
70 |
This trap type is sent when ... |
Get WebLogic: The Definitive Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
