Network support for z/OS Container Extensions

z/OS V2R4 Communications Server has added network support for z/OS Container Extensions.

z/OS Container Extensions provides native z/OS support for Linux® Docker based application workloads. The Communications Server support provides network support for z/OS Container Extensions workloads by introducing a new type of DVIPA called a zCX DVIPA. The zCX DVIPA represents an instance of a Docker server allowing TCP/IP to provide unique IP routing and apply various TCP/IP QoS functions for container workloads running within each Docker server address space.

The Communications Server VTAM® support introduces a new type of zCX network transport that dynamically provides optimized internal network connectivity from each Docker server address space ID (ASID) to TCP/IP for providing access to and from the external network. The VTAM support also introduces the z/OS Container Extensions Direct Network Interface Component (DNIC) that provides a Virtual NIC for the Docker server virtualization environment.

To enable network support for z/OS Container Extensions, perform the tasks in Table 1.
Table 1. Task topics to enable network support for z/OS Container Extensions
Task/Procedure Reference
Use the z/OSMF workflows to create the zCX environment. z/OS Upgrade Workflow
Generate the TCP/IP Docker Server interfaces. Configure a DYNAMICXCF and/or DYNAMICXCF6 statement in z/OS Communications Server: IP Configuration Reference
Configure the VIPARANGE ZCX DVIPA address and start the TCP/IP Docker Server interface. VIPADYNAMIC - VIPARANGE statement in z/OS Communications Server: IP Configuration Reference

To find all related topics about network support for z/OS Container Extensions, see Table 2.

Table 2. All related topics about network support for z/OS Container Extensions
Book name Topics
z/OS Communications Server: IP Configuration Guide
z/OS Communications Server: IP Configuration Reference
z/OS Communications Server: IP Programmer's Guide and Reference
z/OS Communications Server: IP System Administrator's Commands
z/OS Communications Server: IP and SNA Codes Data link control (DLC) status codes
z/OS Communications Server: SNA Operation
z/OS Communications Server: SNA Network Implementation Guide
z/OS Communications Server: SNA Diagnosis Vol 1, Techniques and Procedures
z/OS Communications Server: SNA Diagnosis Vol 2, FFST Dumps and the VIT
z/OS Communications Server: SNA Resource Definition Reference
z/OS Communications Server: Quick Reference
z/OS Communications Server: IP Messages Volume 2 (EZB, EZD)
z/OS Communications Server: SNA Messages