The DPI is an application interface used by the SNMP agent to communicate with subagents. With DPI, you can dynamically add, delete or replace management variables supported by the SNMP agent and its subagents. z/OS® Communications Server provides DPI V2.0 for z/OS UNIX C socket users and DPI V1.1 for traditional C socket users. DPI V2.0 provides additional function, making it easier to write subagents and simplifying the task of developing and administering your application.
For more information about the DPI, see z/OS Communications Server: IP Programmer's Guide and Reference.