IP Services: Relink NMI applications using the 64-bit TMI copy buffer function

Description

Starting with z/OS V2R1, the interface between the 64-bit TMI copy buffer function (EZBTMIC4) and the TCP/IP stack is changed. Applications that use the real-time TCP/IP network monitoring network management interface (NMI) and statically link to this function must either relink or change to dynamic linking or loading of the function.

Table 1 provides more details about this migration action. Use this information to plan your changes to the system.

Table 1. Information about this migration action
Element or feature: Communications Server.
When change was introduced: z/OS V2R1.
Applies to migration from: z/OS V1R13.
Timing: Before installing z/OS V2R2.
Is the migration action required? Yes, if your application statically links to the 64-bit TMI copy buffer function (EZBTMIC4). No change is required for applications that use the 32-bit TMI copy buffer function (EZBTMIC1) or that dynamically link or load EZBTMIC4.
Target system hardware requirements: None.
Target system software requirements: None.
Other system (coexistence or fallback) requirements: None.
Restrictions: None.
System impacts: None.
Related IBM Health Checker for z/OS check: None.

Steps to take

If your application statically links to the 64-bit TMI copy buffer function (EZBTMIC4), relink your application, or change your application to dynamically link to the 64-bit TMI copy buffer function (EZBTMIC4).

Reference information

For more information, see "EZBTMIC1 or EZBTMIC4: Copy TCP/IP Management Interface Data Buffer" in z/OS Communications Server: IP Programmer's Guide and Reference.