Simplification

Description: z/OS® Communications Server includes the following enhancements for simplification:
  • IBM Health Checker for TFTP daemon - A new Health Checker for z/OS migration health check is provided to help determine whether you are using the Trivial File Transfer Protocol daemon (TFTPD). Support for the TFTPD is removed in z/OS V2R3.
    Dependency: You must start the IBM Health Checker for z/OS to use the new migration health check.

    When change was introduced: z/OS V2R2 with the PTF for TCP/IP APAR PI61806 and SNA APAR OA50445.

  • IBM Health Checker for additional z/OS legacy device types - A new migration health check is provided to use with the IBM® Health Checker for z/OS function. The new migration health check determines whether you are using legacy device type configuration statements in your TCP/IP profile.
    DEVICE and LINK profile statements for the following TCP/IP legacy device types are not supported in z/OS V2R3.
    • FDDI and Token Ring (LCS with LINKs FDDI and IBMTR)
    • Token Ring (MPCIPA with LINK IPAQTR)
    • Ethernet and FDDI (MPCOSA with LINKs OSAENET and OSAFDDI)
    When the TCP/IP stack processes a legacy device type profile statement, it issues message EZZ0717I. See this message, and the associated profile processing messages, for information about the profile data set that contains the statements.
    Dependency: You must start the IBM Health Checker for z/OS to use the new migration health check.

    When change was introduced: z/OS V2R2 with the PTF for TCP/IP APAR PI49962 and SNA APAR OA49071.

  • Removed support for the GATEWAY statement in the TCP/IP profile - The GATEWAY profile statement cannot be used to configure IPv4 static routes to the TCP/IP stack. You can use the BEGINROUTES profile statement to configure your IPv4 static routes. The BEGINROUTES statement provides more functionality than the GATEWAY statement and the statement syntax is easier to use.

    When change was introduced: z/OS V2R2

Reference information: See the following topics in z/OS Communications Server: New Function Summary for detailed descriptions that include any applicable restrictions, dependencies, and steps on using the functions:
  • IBM Health Checker for TFTP daemon
  • IBM Health Checker for additional z/OS legacy device types
  • Removed support for the GATEWAY statement in the TCP/IP profile