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Turn on Mapper I/O (LLTDIO) driver

This policy setting changes the operational behavior of the Mapper I/O network protocol driver. LLTDIO allows a computer to discover the topology of a network it’s connected to. It also allows a computer to initiate Quality-of-Service requests such as bandwidth estimation and network health analysis. If you enable this policy setting additional options are available to fine-tune your selection. You may choose the “Allow operation while in domain” option to allow LLTDIO to operate on a network interface that’s connected to a managed network. On the other hand if a network interface is connected to an unmanaged network you may choose the “Allow operation while in public network” and “Prohibit operation while in private network” options instead. If you disable or do not configure this policy setting the default behavior of LLTDIO will apply.


Additional Information

  1. Registry path is:

    HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> Windows -> LLTD # EnableLLTDIO; HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> Windows -> LLTD # AllowLLTDIOOnDomain HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> Windows -> LLTD # AllowLLTDIOOnPublicNet HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> Windows -> LLTD # ProhibitLLTDIOOnPrivateNet

  2. The Administrative Template path is:

    Network -> Link-Layer Topology Discovery

Notes

* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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