// Module included in the following assemblies:
//
// * virt/vm_networking/virt-connecting-vm-to-secondary-udn.adoc

:_mod-docs-content-type: REFERENCE
[id="virt-udn-considerations-ibm-z_{context}"]
= Considerations when running {VirtProductName} on {ibm-z-name}

[role="_abstract"]
When running {VirtProductName} on {ibm-z-name}, the required network configuration depends on the hardware generation and the network adapter in use. Network interfaces on {ibm-z-name} behave differently from standard Ethernet devices, which affects how the bridge forwards virtual machine traffic.

Review the following considerations before configuring a user-defined network (UDN) for virtual machines on {ibm-z-name}. Applying the correct settings ensures stable layer 2 connectivity between the virtual machine and the network bridge.
