Domains and AD sites may be used as network boundaries

Group (2) - HTTP blended with peering across a private group - is used in large networks that consist of multiple segments connected by WAN links.

LAN (1) – HTTP Peering behind the same NAT - is recommended if all your computers are on the same LAN.

To force Delivery Optimization on Windows clients, the Download Mode policy is used.

By default, it is allowed to get files from the computers in the current local network (LAN) only.ĭelivery Optimization settings are available under Settings -> Windows Update -> Advanced Options -> Delivery Optimization. How to Enable Delivery Optimization in Windows 10 or 11?ĭelivery Optimization is enabled in all Windows 10 (build 1511 and newer) and Windows 11 versions.

In modern Windows 11/10 builds, Delivery Optimization supports Windows updates and MS Store apps, as well as Microsoft Office updates (common ones, C2R, or MSIX) and SCCM packages. It means that your computers must have Internet access (direct or through a proxy). To coordinate the activity, the Microsoft Delivery Optimization cloud service is used. If such a is found, the computer downloads the file from a neighboring computer without loading the WAN link. Before downloading a Windows update file or an app from Windows Store, a computer tries to find the file on the nearby computers in the local network.

The Delivery Optimization service is similar to torrents and based on Peer to Peer (P2P) principles.

Delivery optimization network usage