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What's new in Delivery Optimization aaroncz What's new in Delivery Optimization, a peer-to-peer distribution method in Windows 10 and Windows 11. windows-client cmknox medium carmenf article itpro-updates 12/31/2017 tier3

What's new in Delivery Optimization

Applies to

  • Windows 10
  • Windows 11

Microsoft Connected Cache (early preview)

Microsoft Connected Cache (MCC) is a software-only caching solution that delivers Microsoft content within Enterprise networks. MCC can be deployed to as many bare-metal servers or VMs as needed, and is managed from a cloud portal. Cache nodes are created in the cloud portal and are configured by applying the client policy using management tools such as Intune.

For more information about MCC, see Microsoft Connected Cache overview.

There are two different versions:

New in Delivery Optimization for Windows

  • Delivery Optimization introduced support for receiver side ledbat (rLedbat) in Windows 11 22H2.

  • New peer selection options: Currently the available options include: 0 = None, 1 = Subnet mask, and 2 = Local Peer Discovery. The subnet mask option applies to both Download Modes LAN (1) and Group (2). If Group mode is set, Delivery Optimization connects to locally discovered peers that are also part of the same Group (have the same Group ID)."

  • Local Peer Discovery: a new option for Restrict Peer Selection By (in Group Policy) or DORestrictPeerSelectionBy (in MDM). This option restricts the discovery of local peers using the DNS-SD protocol. When you set Option 2, Delivery Optimization restricts peer selection to peers that are locally discovered (using DNS-SD). If Group mode is enabled, Delivery Optimization connects to locally discovered peers that are also part of the same group, for those devices with the same Group ID).

Note

The Local Peer Discovery (DNS-SD, RFC 6763) option can only be set via MDM delivered policies on Windows 11 builds. This feature can be enabled in supported Windows 10 builds by setting the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeliveryOptimization\DORestrictPeerSelectionBy value to 2. For more information, see Delivery Optimization reference.

  • Starting with Windows 11, the Bypass option of Download Mode is no longer used.