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Increase Memory of Virtual Appliance

Parveen Rohilla 0 Reputation points
2025-08-07T06:13:39.2466667+00:00

We have 8000v router appliance for SDWAN setup, and due to memory over usage, we need to increase it. please help me to know how to do if its possible.

Azure Virtual WAN
Azure Virtual WAN
An Azure virtual networking service that provides optimized and automated branch-to-branch connectivity.

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  1. Pranitha Maddi 5 Reputation points Microsoft External Staff Moderator
    2025-08-07T09:57:14.3566667+00:00

    Hi Parveen Rohilla,

    Thanks for your question on the Microsoft Q&A portal!

    I see you're looking to Increase Memory of Virtual Appliance.

    In addition to Michele Arii comment, I'd like to contribute a few more details for clarity

    Yes, you can make your Cisco 8000v router run better in Azure—but it’s not like changing settings on a regular computer because Your router runs as a special app (called a Network Virtual Appliance) inside Azure’s Virtual WAN hub. You don’t change memory or CPU directly. Instead, you pick a bigger version of the app in Azure.

    Here are some more steps and process you can follow as well :

    Sign in to the Azure Portal

    1.Go to  https://portal.azure.com and Use your Azure account credentials to log in.

    1. Navigate to “Virtual machines” and select the VM hosting the 8000v appliance.
    2. Stop (deallocate) the VM then Click “Stop” and Wait for the VM state to show “Stopped (deallocated)”
    3. Under the VM’s Settings blade, select “Size.”
    4. In the available sizes list, filter on “Memory optimized” (e.g., E-series, M-series) and compare RAM and vCPU specs.
    5. Select a size with higher memory (for example, Standard_E8s_v3 has 64 GiB RAM).
    6. Click “Resize” and confirm.
    7. Start the VM by clicking “Start.”

    Here are the commands to Deallocate, Resize and to start the vm

    • Azure CLI

            1. Deallocate the VM:

             az vm deallocate --resource-group MyResourceGroup --name MyRouterVm

            2. Resize to a larger memory-optimized size:

             az vm resize --resource-group MyResourceGroup --name   MyRouterVm --sizeStandard_E8s_v3

            3. Start the VM:

            az vm start --resource-group MyResourceGroup --name MyRouterVm

    • PowerShell

        Stop-AzVM -ResourceGroupName MyRG -Name MyRouterVm -Force

        Update-AzVM -ResourceGroupName MyRG -Name MyRouterVm -Size Standard_E8s_v3

        Start-AzVM -ResourceGroupName MyRG -Name MyRouterVm 

    Please refer to this document for more information:

    Resize a virtual machine - Azure Virtual Machines | Microsoft Learn

    About Network Virtual Appliances - Virtual WAN hub - Azure Virtual WAN | Microsoft Learn

    Please let us know if that works for you.

     

    Thanks,

    Pranitha

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