of logical networks. It may seem strange that your first configuration is to disable
functionality, but it will help ensure your SCVMM modeling consistency. With
automatic logical network creation enabled, when a Hyper-V host that already has a
virtual switch defined is added to SCVMM, a logical network will automatically be
created in SCVMM if SCVMM does not find a match for an existing logical network
based on the first DNS suffix label for the network adapter network (which is the
default behavior). For example, if the DNS suffix for a network connection is
lab.savilltech.net, a logical network named lab will be used, and if not found, it will
automatically be created.
This automatic creation of logical networks may be fine in a test environment, but in
production, where you have planned for your logical networks in detail and deployed
accordingly, the automatic creation of logical networks based on DNS suffix labels
would likely be undesirable. Therefore, disable this automatic logical network creation
as follows:
1 . Open Virtual Machine Manager.
2 . Open the Settings workspace.
3 . Select the General navigation node.
4 . Double-click Network Settings in the details pane.
5 . In the Network Settings dialog box, uncheck the Create Logical Networks
Automatically option, as shown in Figure 3.17, and click OK. Notice also in this
dialog box that you can change the logical network matching behavior to a scheme
that may better suit your naming conventions and design.