Sysplex and Network Topology Considerations

In this session we will look at how to provide optimized network access to the images and between the images of a z/OS Sysplex. Various newer networking technologies will be reviewed and explained, such as multiple virtual LAN support by OSA, the use of virtual MAC addresses, QDIO acceleration, using WLM service level information to choose QDIO outbound priority queue, Multiple Inbound Queueing, etc. The session will also review various Sysplex access network topology examples and discuss aspects of each. In particular, the session will discuss the recent high availability features, techniques for achieving network interface resilience in a flat network and the impacts of using state-full firewalls in the Sysplex access network.

Tracks: Network Support and Management