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Common Scenarios for Networking in System Center 2012 SP1 and System Center 2012 R2

Updated: November 1, 2013

Applies To: System Center 2012 R2 Virtual Machine Manager, System Center 2012 SP1 - Virtual Machine Manager

This topic describes various networking options in Virtual Machine Manager (VMM) in System Center 2012 Service Pack 1 (SP1) and System Center 2012 R2. These options can enhance and extend the ways in which you work with IP addressing, virtual local area networks (VLANs), routers, switches, and other elements of networking that support your virtual machines.

ImportantImportant
This topic describes networking options in VMM in System Center 2012 Service Pack 1 (SP1) and System Center 2012 R2. For information about networking options in VMM in System Center 2012, see Common Scenarios for Networking in VMM in System Center 2012.

Scenarios for creating the networking environment for hosts

The following table describes ways in which you can use networking capabilities in VMM in System Center 2012 SP1 or System Center 2012 R2 when you configure the networking environment for virtual machine hosts. For additional scenarios that apply to System Center 2012 SP1 and System Center 2012 R2, see the following:

 

Scenario Key information For more information

On a host, use only part of the bandwidth of a physical network adapter, or a teamed set of network adapters, for managing that host.

  • Configure a port profile for virtual network adapters that will limit the amount of bandwidth. Also configure a logical switch that includes that port profile.

  • Assign the logical switch to the management adapter, either in the host’s properties, or in a profile that you use to provision Hyper-V hosts.

Configuring Ports and Switches for VM Networks in VMM

How to Configure Network Settings on a Host by Applying a Logical Switch in VMM

How to Create a Host or a Physical Computer Profile to Provision a Hyper-V Host in VMM

On a host, configure teaming of multiple physical network adapters for increased availability.

  • Configure a logical switch and associate it with multiple physical adapters on the host.

  • The logical switch that you create for this purpose must use Team for the uplink mode.

Configuring Ports and Switches for VM Networks in VMM

How to Configure Network Settings on a Host by Applying a Logical Switch in VMM

How to Create a Host or a Physical Computer Profile to Provision a Hyper-V Host in VMM

On a host, integrate a top-of-rack (TOR) switch with VMM in System Center 2012 R2. This can simplify network configuration and help prevent software misconfiguration of networks.

For System Center 2012 R2 only: Add a top-of-rack switch to VMM by using the Add Network Service wizard.

How to Add a Top-of-Rack Switch in VMM in System Center 2012 R2

Scenarios for logical networks, IP address pools, and network load balancing

The following table describes ways in which you can use networking capabilities in VMM to configure logical networks, IP address pools, and network load balancing to support your virtual machine configuration. For additional scenarios that apply to System Center 2012 SP1 and System Center 2012 R2, see the following:

 

Scenario Key information For more information

Connect virtual machines to a network that serves a particular function in your environment, for example, the “Backend,” “Frontend,” or “Backup” network. In other words, associate IP subnets and, if needed, virtual local area networks (VLANs) together into named units, called "logical networks," that virtual machines can use.

  • Logical networks, which were introduced in System Center 2012, provide a foundation for virtual machine networks (VM networks) in System Center 2012 SP1 and System Center 2012 R2. The simplest way to use a logical network that you have created is to create a VM network that uses that logical network with No isolation. The VM network will function as a logical network with no isolated networks within it. For more options with VM networks, see Scenarios for virtual machine networks in this topic.

  • Only one VM network that is configured with No isolation can be assigned to each logical network.

Configuring Logical Networking in VMM Overview

How to Create a Logical Network in VMM

How to Create a VM Network in VMM in System Center 2012 SP1

How to Create a VM Network in VMM in System Center 2012 R2

Simplify IP address management in VMM on networks where you do not use Dynamic Host Configuration Protocol (DHCP).

After you create logical networks, VM networks, or both, you can create IP address pools and, if needed, MAC address pools for those networks.

Configuring Logical Networking in VMM Overview

How to Create IP Address Pools for Logical Networks in VMM

Automatically provision load balancers in your virtualized environment.

  • Either use Microsoft Network Load Balancing (NLB) or add supported hardware load balancers to VMM.

  • NLB is included as an available load balancer with VMM.

Configuring Load Balancing in VMM Overview

Integrate VMM in System Center 2012 R2 with an IP Address Management (IPAM) server. An IPAM server is a server that is running Windows Server 2012 R2 with the IPAM Server feature installed. When two systems are integrated, the network settings are periodically synchronized between them.

For System Center 2012 R2 only: Add the IPAM server as a network service in VMM

How to Add an IPAM Server in VMM in System Center 2012 R2

Scenarios for virtual machine networks

The following table describes ways in which you can use networking capabilities in VMM to configure networks that virtual machines use. For additional scenarios that apply to System Center 2012 SP1 and System Center 2012 R2, see the following:

ImportantImportant
As of System Center 2012 SP1, VM networks and other VMM networking enhancements are based on Hyper-V Network Virtualization, which was introduced in Windows Server 2012. To better understand VM networks that use network virtualization, review the illustrations and descriptions of Hyper-V Network Virtualization in Network Virtualization technical details.

 

Scenario Key information For more information

Move virtual machines and their associated networks in a single operation.

  • When you configure a virtual machine or virtual machine template and you specify a VM network that uses network virtualization, the VM network moves when the virtual machine is moved. A VM network can use network virtualization only if the logical network on which it is configured allows network virtualization.

Configuring VM Networks and Gateways in VMM

How to Create a VM Network in VMM in System Center 2012 SP1

How to Create a VM Network in VMM in System Center 2012 R2

How to Create a Virtual Machine Template

Connect virtual machines on VM networks to computers on connected physical networks.

In System Center 2012 R2: Connect virtual machines on VM networks to computers on connected physical networks, and optionally, use network address translation (NAT).

For a similar scenario for a hosting provider, see the last line in this table.

  • For this scenario, you configure a VM network to use a gateway. First, however, you must ensure that the provider software for the gateway has been installed on the VMM management server. Then you can add the gateway to VMM.

  • Create a VM network that uses network virtualization (on a logical network that allows this), and configure the VM network with the gateway:

    • In System Center 2012 SP1, configure the VM network with a gateway setting of Local networks.

    • In System Center 2012 R2, configure the VM network with a connectivity setting of Connect directly to an additional logical network and optionally, select Network address translation (NAT).

  • The gateway will act as a router to the physical network.

Configuring VM Networks and Gateways in VMM

How to Add a Gateway in VMM in System Center 2012 SP1

How to Use a Server Running Windows Server 2012 R2 as a Gateway with VMM

How to Add a Gateway in VMM in System Center 2012 R2

Manage networks that use familiar VLAN technology for network isolation, but use VMM to simplify the management process.

  • Obtain information about the isolated VLANs that have been created within the physical network. Then, in VMM, create a logical network and specify the appropriate option:

    • In System Center 2012 SP1: In most cases, select Network sites within this logical network are not connected only. However, if you are using private VLAN technology, also select the option for private VLANs.

    • With System Center 2012 R2: In most cases, select VLAN-based independent networks. However, if you are using private VLAN technology, select the option for private VLANs instead.

    Then follow additional steps in Configuring VM Networks and Gateways in VMM.

  • The completed configuration has one VM network for each isolated VLAN in your physical network.

Configuring VM Networks and Gateways in VMM

How to Create a Logical Network in VMM

How to Create a VM Network in VMM in System Center 2012 SP1

How to Create a VM Network in VMM in System Center 2012 R2

In the hosted environment that you provide, enable each tenant, client, or customer to have their own networks that are isolated from the networks of other tenants, clients, or customers.

  • Use network virtualization. To do this, create a logical network as the foundation, specify that the logical network allows for VM networks that use network virtualization, and then create multiple VM networks on top of the logical network. Provide one or more VM networks for each tenant, client, or customer.

Configuring VM Networks and Gateways in VMM

How to Create a Logical Network in VMM

How to Create a VM Network in VMM in System Center 2012 SP1

How to Create a VM Network in VMM in System Center 2012 R2

In the hosted environment that you provide, enable your tenants, clients, or customers to "Bring your own IP". In other words, you offer them an environment in which they can use whatever IP addresses they want for their virtual machines.

  • Use network virtualization. To do this, create a logical network as the foundation, specify that the logical network allows for VM networks that use network virtualization, and then create multiple VM networks on top of the logical network. Provide one or more VM networks for each tenant, client, or customer.

Configuring VM Networks and Gateways in VMM

How to Create a Logical Network in VMM

How to Create a VM Network in VMM in System Center 2012 SP1

How to Create a VM Network in VMM in System Center 2012 R2

In the hosted environment that you provide, enable your tenants, clients, or customers to configure some aspects of their own networks, based on limits that you specify.

  • Use network virtualization, and give each tenant access to the appropriate networks through the Tenant Administrator role in VMM. (See the previous row in this table for information about network virtualization.)

Configuring VM Networks and Gateways in VMM

How to Create a VM Network in VMM in System Center 2012 SP1

How to Create a VM Network in VMM in System Center 2012 R2

How to Create a Tenant Administrator User Role in VMM

In the hosted environment that you provide, enable your tenants to connect their virtual machines to systems on their own premises.

In System Center 2012 R2: In the hosted environment that you provide, enable your tenants to connect their virtual machines to multiple sites on their own premises, and optionally, to use Border Gateway Protocol (BGP).

  • For this scenario, you configure a VM network to use the tenant’s gateway. First, however, you must ensure that the provider software (that works with the tenant’s gateway) has been installed on the VMM management server. Then you can add the gateway to VMM.

  • Create the tenant’s VM network so that it uses network virtualization (on a logical network that allows this option), and configure the VM network with the gateway:

    • In System Center 2012 SP1, configure the VM network with a gateway setting of Remote networks.

    • In System Center 2012 R2, configure the VM network with a connectivity setting of Connect to another network through a VPN tunnel, and optionally, Enable Border Gateway Protocol (BGP).

  • This configuration provides a site-to-site, virtual-private-network (VPN) connection from the tenant’s VM network (in the hosted environment that you provide) to a VPN gateway on the tenant’s premises.

Configuring VM Networks and Gateways in VMM

How to Add a Gateway in VMM in System Center 2012 SP1

How to Create a VM Network in VMM in System Center 2012 SP1

How to Use a Server Running Windows Server 2012 R2 as a Gateway with VMM

How to Add a Gateway in VMM in System Center 2012 R2

How to Create a VM Network in VMM in System Center 2012 R2

Scenarios for virtual switches and switch extensions

The following table describes ways in which you can use networking capabilities in VMM to configure virtual switches and switch extensions that define connectivity and capabilities in networks that are used by virtual machines. For additional scenarios that apply to System Center 2012 SP1 and System Center 2012 R2, see the following:

 

Scenario Key information For more information

In a virtualized network environment, monitor network traffic, use Quality of Service (QoS) to control network bandwidth usage, or enhance the level of security.

  • In VMM, create a logical switch and associate a virtual switch extension with it. For example, use a switch extension that supports QoS (through the switch extension provider).

  • Before you can associate a switch extension with a logical switch, you must install provider software on the VMM management server. Some providers are included in VMM. You can also obtain them from switch manufacturers and add them to VMM.

Configuring Ports and Switches for VM Networks in VMM

Configure settings on your forwarding extension and then apply them consistently in your virtualized environment. Settings can include network objects such as logical networks, network sites, and VM networks.

  • In VMM, add the switch extension manager for your forwarding extension. To do this, you must first install provider software that you obtain from the switch manufacturer.

  • Then create logical switches, which bring together multiple network settings and capabilities that you want to make available on particular hosts.

Configuring Ports and Switches for VM Networks in VMM

How to Add a Virtual Switch Extension Manager in System Center 2012 SP1

How to Add a Virtual Switch Extension or Network Manager in System Center 2012 R2

See Also

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For additional resources, see Information and Support for System Center 2012.

Tip: Use this query to find online documentation in the TechNet Library for System Center 2012. For instructions and examples, see Search the System Center 2012 Documentation Library.
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