IP Services: Replace configuration of TCP/IP legacy device types

Description: Support for the DEVICE and LINK profile statements for the following TCP/IP legacy device types are planned to be removed from IBM Communications Server in the release following z/OS V2R1:

ATM
CDLC
CLAW
HYPERchannel
SNALINK (LU0 and LU6.2)
X.25

Because support will be eliminated for the ATM device type, the following associated TCP/IP profile statements will no longer be supported:

ATMARPSV
ATMLIS
ATMPVC

If you are using these profile statements, migrate to a later interface type, such as OSA-Express QDIO or HiperSockets.

Element or feature:

z/OS Communications Server.

When change was introduced:

The planned removal was announced in IBM United States Hardware Announcement 114-009, dated February 24, 2014.

Applies to migration from:

z/OS V1R13 and z/OS V1R12.

Timing:

Before installing z/OS V2R1.

Is the migration action required?

No, but recommended because z/OS V2R1 is planned to be the last z/OS release to support these TCP/IP device types.

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:

The ZOSMIGV2R1_CS_LEGACYDEVICE migration health check determines whether you are using any legacy device statements in your TCP/IP profile. This check is available on the following releases:

z/OS V1R13 with APARs PI12977 and OA44669 applied.
z/OS V2R1 with APARs PI12981 and OA44671 applied.

If any of these device type profile statements are processed, warning message EZZ0717I is issued.

Steps to take: Migrate to a later TCP/IP interface type, such as OSA-Express QDIO or HiperSockets.

Reference information: For more information on using OSA-Express QDIO or HiperSockets interfaces, see Considerations for networking hardware attachment in z/OS V2R1.0 Communications Server: IP Configuration Guide.