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articles/virtual-network/accelerated-networking-how-it-works.md

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@@ -241,7 +241,9 @@ You can disable or enable Accelerated Networking on a virtual NIC in a nonrunnin
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$ az network nic update --name u1804895 --resource-group testrg --accelerated-network false
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```
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Disabling Accelerated Networking that's enabled in the guest VM produces a `dmesg` output. It's the same as when the VF interface is removed for Azure host servicing. Enabling Accelerated Networking produces the same `dmesg` output as when the VF interface is readded after Azure host servicing. You can use these Azure CLI commands to simulate Azure host servicing. You can then verify that your applications don't incorrectly depend on direct interaction with the VF interface.
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Disabling Accelerated Networking that's enabled in the guest VM produces a `dmesg` output. It's the same as when the VF interface is removed for Azure host servicing. Enabling Accelerated Networking produces the same `dmesg` output as when the VF interface is readded after Azure host servicing.
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You can use these Azure CLI commands to simulate Azure host servicing. You can then verify that your applications don't incorrectly depend on direct interaction with the VF interface.
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## Next steps
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articles/virtual-network/accelerated-networking-overview.md

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# Accelerated Networking overview
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This article describes the benefits, constraints, and supported configurations of Accelerated Networking. Accelerated Networking enables [single root I/O virtualization (SR-IOV)](/windows-hardware/drivers/network/overview-of-single-root-i-o-virtualization--sr-iov-) on supported virtual machine (VM) types, greatly improving networking performance. This high-performance data path bypasses the host, which reduces latency, jitter, and CPU utilization for demanding network workloads.
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This article describes the benefits, constraints, and supported configurations of Accelerated Networking. Accelerated Networking enables [single root I/O virtualization (SR-IOV)](/windows-hardware/drivers/network/overview-of-single-root-i-o-virtualization--sr-iov-) on supported virtual machine (VM) types, greatly improving networking performance. This high-performance data path bypasses the host, which reduces latency, jitter, and CPU utilization for the most demanding network workloads.
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The following diagram illustrates how two VMs communicate with and without Accelerated Networking.
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- The benefits of Accelerated Networking apply only to the VM that enables it.
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- For best results, you should enable Accelerated Networking on at least two VMs in the same Azure virtual network. This feature has minimal effect on latency when you communicate across virtual networks or connect on-premises.
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- For best results, enable Accelerated Networking on at least two VMs in the same Azure virtual network. This feature has minimal effect on latency when you communicate across virtual networks or connect on-premises.
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- You can't enable Accelerated Networking on a running VM. You can enable Accelerated Networking on a supported VM only when the VM is stopped and deallocated.
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- Windows Server 2019 Standard/Datacenter
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- Windows Server 2016 Standard/Datacenter
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- Windows Server 2012 R2 Standard/Datacenter
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- Windows 10, version 21H2 or later, including Windows 10 Enterprise multisession
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- Windows 10 version 21H2 or later, including Windows 10 Enterprise multisession
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- Windows 11, including Windows 11 Enterprise multisession
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The following Linux and FreeBSD distributions from Azure Marketplace support Accelerated Networking out of the box:
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- Debian "Buster" or later
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- Oracle Linux 7.4 and later with Red Hat Compatible Kernel (RHCK)
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- Oracle Linux 7.5 and later with UEK version 5
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- FreeBSD 10.4, 11.1, 12.0 or later
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- FreeBSD 10.4, 11.1, 12.0, or later
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### Supported VM instances
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```
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>[!NOTE]
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>We strongly advise against running competing network interface software (such as ifupdown and networkd) on custom images and running dhcpclient directly on multiple interfaces.
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>We strongly advise that you don't run competing network interface software (such as ifupdown and networkd) on custom images, and that you don't run dhcpclient directly on multiple interfaces.
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