z/OS Support

Deploying multiple z/OS® TCP/IP stacks under the same virtual OSA TRLE on a virtual switch requires a trunk port connection. All z/OS stacks are connected through the same virtual NIC. Each stack in this group is configured with a Global VLAN ID through its TCP/IP stack configuration. To support multiple VLAN LAN segments across a single NIC, a trunk port connection must be deployed. In this way, each required VLAN ID can be granted for this connection (a VLAN ID associated with each stack in the TRLE group). Even though these stacks are VLAN-unaware, the tagging performed in the IP layer does not cause a problem for the guest.