Configuring Logical Networking in VMM Illustrated Overview
Updated: March 14, 2013
Applies To: System Center 2012 - Virtual Machine Manager, System Center 2012 SP1 - Virtual Machine Manager
This overview illustrates logical networks, which are part of Virtual Machine Manager (VMM) in System Center 2012 and System Center 2012 Service Pack 1 (SP1). Logical networks are named networks that serve particular functions in your environment, for example, the “Backend,” “Frontend,” or “Backup” network.
For illustrations based on VMM in System Center 2012 SP1 only, showing the relationship between logical networks and virtual machine networks (VM networks), see Configuring VM Networks in VMM in System Center 2012 SP1 Illustrated Overview.
Logical networks in VMM in System Center 2012 and in System Center 2012 SP1
The following illustration shows a logical network in VMM in either System Center 2012 or System Center 2012 SP1. For some networking elements, fictitious names such as “Contoso1” are included to help illustrate the purpose of those elements.
Figure 1 Logical network
This illustration shows how a logical network in VMM is a container for network sites (also called logical network definitions) and IP subnet information, virtual local area network (VLAN) information, or both. It also shows how host groups in VMM can be associated with a network site and how IP address pools can be assigned to subnets within the logical network.
In the preceding illustration, the names of elements that you configure by running a wizard or opening a property sheet are shown in bold text, while elements that are on a page of the wizard or on a tab of the property sheet are shown without bold text.
Network object model for logical networks
The following illustration shows the network object model for logical networks in VMM in System Center 2012 and System Center 2012 SP1. The illustration shows the relationships among network objects only, rather than indicating information about the wizards and property sheets through which the objects are configured in the VMM console. The illustration can be especially useful if you are learning about configuring VMM through Windows PowerShell scripts, which reflect the network object models directly.
For some objects, sample names such as “Contoso1” and “Building1” are included to help illustrate the purpose of those objects. (The object labeled “Network site” is also known as a “logical network definition.”)
Figure 6 Object model for logical networks
The following key explains the notations on the arrows:
1-1 means “one to one.”
1-M means “one to many.”
M-M means “many to many.”
In the preceding illustration, bold text is used for each VMM object name, regardless of how that object is configured through the VMM console.
TasksHow to Create a Logical Network in VMM
ConceptsConfiguring Logical Networking in VMM Overview
Configuring VM Networks in VMM in System Center 2012 SP1 Illustrated Overview
Configuring Ports and Switches in VMM in System Center 2012 SP1 Illustrated Overview
Common Scenarios for Networking in Virtual Machine Manager
For additional resources, see Information and Support for System Center 2012.
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