Training
Certification
Microsoft Certified: Azure Network Engineer Associate - Certifications
Demonstrate the design, implementation, and maintenance of Azure networking infrastructure, load balancing traffic, network routing, and more.
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Applies to: Azure Local 2311.2 and later; Windows Server 2022, Windows Server 2019, Windows Server 2016
Software Defined Networking (SDN) infrastructure components include Network Controller and optionally, Software Load Balancers (SLBs), and SDN gateways that run on virtual machines (VMs).
When you update each component, you use any of the standard methods for installing Windows updates, and you also use Windows PowerShell. You can update the SDN infrastructure in any order, but we recommend that you update the Network Controller virtual machines (VMs) first.
Hyper-V hosts can be updated before or after updating the SDN infrastructure.
Complete the following steps for updating the Network Controller:
On the first Network Controller VM, install all updates and restart the VM if required by the update. During restart, the Network Controller node goes down and then comes back up again. When you restart the VM, it may take a few minutes before it goes back to Up
status.
Before updating the next Network Controller VM, ensure that the status of the node is Up
by running the following PowerShell Get-NetworkControllerNode
cmdlet:
PS C:\> get-networkcontrollernode
Name : NCNode1.contoso.com
Server : NCNode1.Contoso.com
FaultDomain : fd:/NCNode1.Contoso.com
RestInterface : Ethernet
NodeCertificate :
Status : Down
Name : NCNode2.Contoso.com
Server : NCNode2.contoso.com
FaultDomain : fd:/ NCNode2.Contoso.com
RestInterface : Ethernet
NodeCertificate :
Status : Up
Name : NCNode3.Contoso.com
Server : NCNode3.Contoso.com
FaultDomain : fd:/ NCNode3.Contoso.com
RestInterface : Ethernet
NodeCertificate :
Status : Up
Complete Steps 1 and 2 for the other Network Controller VMs.
Install updates on each SLB VM one at a time to ensure continuous availability of the load balancer infrastructure.
Install updates on each gateway VM one at a time. During the update, the VM may be unavailable or may need to be restarted. In this case, the active connections on that gateway are migrated to a standby gateway VM, if so configured. This results in some downtime for the tenant connections as they're migrated to the standby gateway.
To minimize downtime, install updates on the redundant gateway VM first. If you haven't configured any redundant gateway VMs, ignore this step. To find out whether a particular gateway VM is redundant or not, run the following command on a Network Controller VM:
(Get-NetworkControllerGateway -ConnectionUri <your_REST_URI_for_Network_Controller_deployment> -ResourceId <your_resource_ID_of_gateway>).Properties.State
The state can be either Active
or Redundant
.
After a gateway is updated, ensure that the HealthState of the gateway is set to Healthy
and the State is Redundant
or Active
before moving on to the next gateway. If there are no redundant gateways, ensure that the State is Active
before moving to the next gateway.
To check the HealthState
status of a gateway VM, run the following PowerShell command on the Network Controller VM:
(Get-NetworkControllerGateway -ConnectionUri <REST uri of the Network Controller deployment> -ResourceId <Resource ID of gateway>).Properties.HealthState
Learn more about SDN infrastructure. See Plan a Software Defined Network infrastructure.
Training
Certification
Microsoft Certified: Azure Network Engineer Associate - Certifications
Demonstrate the design, implementation, and maintenance of Azure networking infrastructure, load balancing traffic, network routing, and more.
Documentation
Manage tenant virtual networks - Azure Local
This topic provides step-by-step instructions on how to use Windows Admin Center to create, update, and delete Hyper-V Network Virtualization (HNV) virtual networks after you have deployed Software Defined Networking (SDN).
Manage tenant logical networks - Azure Local
This topic provides step-by-step instructions on how to use Windows Admin Center to create, update, and delete logical networks after you have deployed Network Controller.
Learn how to troubleshoot the deployment of Software Defined Networking (SDN) in Azure Local, version 23H2 via Windows Admin Center.