The SystemEDGE agent provides a mechanism for extending the Systems Management MIB to include information about your systems and applications. Using this feature, you can extend the agent to manage your system environment more effectively. You can also design application-specific MIB variables to manage your applications using SNMP without implementing SNMP support within the application source.
The SystemEDGE agent provides this extension support through the Extension group (extensionGroup) of the Systems Management MIB. This group contains unspecified scalar MIB variables that you can configure. In response to a SNMP GetRequest for one of these variables, the SystemEDGE agent invokes the command that you specify for the variable and returns the value that the command returns. Using the SNMP Set operation, you can also pass parameters to a command.
The Extension group is supported on UNIX and Windows systems. On Windows, you may also configure the agent to report on performance and configuration data available in the Windows registry. To support this reporting, the SystemEDGE agent also provides a Windows registry extension group.
Note: For more information about this group, see the chapter “Windows Registry and Performance MIB Objects.”
The following illustration shows four sample extension variables distributed with the agent:
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