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Hyper-V: Ensure that All Mandatory Virtual Switch Extensions Are Available - TechNet Articles - United States (English) - TechNet Wiki

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Hyper-V: Ensure that All Mandatory Virtual Switch Extensions Are Available

Table of Contents



This article is intended to provide more information about a specific issue that can be identified by running a Best Practices Analyzer scan for Hyper-V. It also can be used without running a scan, as general troubleshooting and best practice information to help you configure your server appropriately. If you have troubleshooting steps or information that would improve this article, please add it. For instructions on how to edit a TechNet Wiki article, see Wiki: How to Use the Editor.

For more information about best practices and scans, see Run Best Practices Analyzer Scans and Manage Scan Results.

Operating System

Windows Server 2012

Product/Feature

Hyper-V

Severity

Category

Note: The following sections provide details about the specific issue. Italics indicates UI text that appears in the Best Practices Analyzer tool for the specific issue.

Issue

One or more virtual network adapters are connected to a virtual switch with mandatory extensions that are disabled or not installed.

Impact

Network traffic is blocked on one or more virtual network adapters on the following virtual machines: <list of virtual machines>

Resolution

First, make sure that the mandatory extension has been installed on the host and install the extension if necessary. Then, if the mandatory extension is disabled, use Virtual Switch Manager or the Windows PowerShell cmdlet Enable-VMSwitchExtension to enable the extension.