Prior to App Layering 4.13, the ELM was provisioned with a NIC that did not have Azure Accelerated Networking enabled. This feature was not fully supported by Microsoft on Linux guests prior to this point. Please note that upgrading to App Layering 4.13 will NOT change the NIC configuration. The ELM will need to be either redeployed starting at version 4.13 or have the NIC manually changed per this guide.

Enabling this feature should noticeably speed up all tasks that involve network transfers. Such as copying an image or layer to a storage account and importing a finalize layer, or a new gold image.

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Instructions

The Azure guide to creating a NIC with Accelerated Networking enabled can be found here:
https://docs.microsoft.com/en-us/azure/virtual-network/create-vm-accelerated-networking-cli

A quick and easy way to create a new NIC with Accelerated Networking enabled is listed below. This will not cover making security groups, public IP's, etc. Please see the Microsoft link found above for that process.

• First make sure you have Azure CLI installed from the above link.
• Open the Windows command prompt and run:

az login
 

• A browser window will open and confirm your credentials to log into Azure.
• Next run the following to create the NIC, please fill in the names per your Azure instance:

az network nic create --resource-group RG_NAME --name NEW_NIC_NAME --vnet-name VNET_NAME --subnet SUBNET_NAME --accelerated-networking true
 

• Within the Azure Portal, please find the ELM.
• From the ELM overview page select "Networking" and then "Attach network interface."
• Select the newly created NIC.
• Once attached please remove the original NIC before powering on the ELM.

You now have an Azure Accelerated Networking NIC assigned to the ELM. No additional changes need to be made to the ELM appliance as the changes will be auto configured by the OS.
 

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