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Remove a Software Defined Network (SDN) from VMM fabric

  • Article

To remove an SDN from the System Center Virtual Machine Manager (VMM) fabric, you must remove the following objects in the specified order:

  • VM networks (associated with the NC managed logical networks).
  • Logical networks (managed by NC).
  • Software load balancer (if deployed or deployed and configured).
  • Gateway (if deployed or deployed and configured).
  • Network controller (if deployed or deployed and configured).

Remove the VM networks

Note

Ensure that no VMs or NICs are connected to the VM networks that you want to remove.

  1. Select VMs and Services > VM Networks, and select the VM network to remove.
  2. Right-click the VM network and select Delete.
  3. Repeat steps 1 and 2 for each VM network that you need to remove.

Remove the logical networks

Note

Ensure that no port profiles are associated with the logical networks that you want to remove. You can only remove HNV logical network. Do not remove transient network.

  1. Select Fabric > Logical networks and select the logical network to remove.
  2. Right-click the logical network and select Remove.
  3. Repeat steps 1 and 2 for each logical network that you need to remove.

Note

Logical networks associated with the SLB cannot be removed from the console. Use force delete to remove these (by using -Force flag).

Remove the software load balancer

  1. Select Fabric > Network Services and select the software load balancer role.

  2. Under Services > Associated Services, select Browse, and then select Clear Selection.

    This action removes the software load balancer service. Ensure the job is complete. If the job fails, restart the job after making the required changes that the error message details you.

  3. Uncheck the pools that are associated with the SLB, except for the private VIP pool that is associated with the SLB Manager VIP.

  4. To complete the removal of the SLB, force delete the private VIP pool, the corresponding logical network definition, and the logical networks (by using -Force flag).

Remove the gateway

  1. Select Fabric > Network Services and select the Gateway manager role.

  2. Under Services > Associated Services, select Browse, and then select Clear Selection.

    This action removes the gateway service. Ensure the job is complete. If the job fails, restart the job after making the required changes that the error message details you.

  3. To complete the removal of the gateway, remove the gateway pool by using the following PowerShell scripts:

    $nc=get-scnetworkservice | Where {$_.Model -eq "Microsoft Network Controller"}
$gwrole=get-scfabricrole -NetworkService $nc | Where {$_.RoleType -eq "Gateway"}
Set-SCFabricRole -FabricRole  $gwrole  -GatewayConfiguration $null

Remove the network controller

Note

Ensure that SLB/GW and associated logical networks are successfully removed.

  1. Select Fabric > Network Services and select the network controller.

  2. Right-click the NC and select Remove.

    This action removes the NC service. Ensure that the job is complete. If the job fails, restart the job after making the required changes that the error message details you.