Description: Prior to z/OS V1R13, for any dynamic VIPA (DVIPA) creation request, the first matching VIPARANGE statement is used when creating a DVIPA. Beginning in z/OS V1R13, the most specific VIPARANGE statement match is used when creating a DVIPA.
| Element or feature: | Communications Server. |
| When change was introduced: | z/OS V1R13. |
| Applies to migration from: | z/OS V1R12. |
| Timing: | Before the first IPL of z/OS V2R1. |
| Is the migration action required? | No, but recommended to ensure DVIPAs are created as intended. |
| 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: Follow these steps:
Reference information: For details, see the following: