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Merge branch 'main' into release-mcc-ent

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Alma Jenks
2024-06-07 22:35:55 +00:00
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8
windows/deployment/do/waas-delivery-optimization-reference.md
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@ -37,7 +37,7 @@ In MDM, the same settings are under **.Vendor/MSFT/Policy/Config/DeliveryOptimiz
| [Download mode](#download-mode) | DODownloadMode | 1511 | Default is configured to LAN(1). The Group [Download mode](#download-mode) (2) combined with [Group ID](#group-id), enables administrators to create custom device groups that share content between devices in the group.|
| [Group ID](#group-id) | DOGroupID | 1511 | Used with Group [Download mode](#download-mode). If not configured, check [GroupIDSource](#select-the-source-of-group-ids). When GroupID or GroupIDSource policies aren't configured, the GroupID is defined as the AD Site (1), Authenticated domain SID (2) or Microsoft Entra tenant ID (5), in that order. |
| [Select the source of Group IDs](#select-the-source-of-group-ids) | DOGroupIDSource | 1803 | If not configured, check [Group ID](#group-id). When the GroupID or GroupIDSource policies aren't configured, the Group is defined as the AD Site (1), Authenticated domain SID (2) or Microsoft Entra tenant ID (5), in that order. |
| [Select a method to restrict peer selection](#select-a-method-to-restrict-peer-selection) | DORestrictPeerSelectionBy | 1803 | Starting in Windows 11, a new option to use 'Local discovery (DNS-SD)' is available to configure via this policy. |
| [Select a method to restrict peer selection](#select-a-method-to-restrict-peer-selection) | DORestrictPeerSelectionBy | 1803 | Windows 10 - default isn't configured. Windows 11 - default peer selection is restricted to the Subnet only in LAN [Download mode](#download-mode) (1). |
| [Minimum RAM (inclusive) allowed to use peer caching](#minimum-ram-inclusive-allowed-to-use-peer-caching) | DOMinRAMAllowedToPeer | 1703 | Default value is 4 GB. |
| [Minimum disk size allowed to use peer caching](#minimum-disk-size-allowed-to-use-peer-caching) | DOMinDiskSizeAllowedToPeer | 1703 | Default value is 32 GB. |
| [Max cache age](#max-cache-age) | DOMaxCacheAge | 1511 | Default value is 259,200 seconds (three days). |
@ -96,7 +96,7 @@ More options available that control the impact Delivery Optimization has on your
#### Policies to prioritize the use of peer-to-peer and cache server sources
When Delivery Optimization client is configured to use peers and Microsoft Connected Cache (MCC), to achieve the best possible content delivery experience, the client connects to both MCC and peers in parallel. If the desired content can't be obtained from MCC or peers, Delivery Optimization will automatically fallback to the HTTP source to get the requested content. There are four settings that allow you to prioritize peer-to-peer or MCC sources by delaying the immediate fallback to HTTP source, which is the default behavior.
When Delivery Optimization client is configured to use peers and Microsoft Connected Cache (MCC), to achieve the best possible content delivery experience, the client connects to both MCC and peers in parallel. If the desired content can't be obtained from MCC or peers, Delivery Optimization will automatically fall back to the HTTP source to get the requested content. There are four settings that allow you to prioritize peer-to-peer or MCC sources by delaying the immediate fallback to HTTP source, which is the default behavior.
##### Peer-to-peer delay fallback settings
@ -235,10 +235,12 @@ MDM Setting: **DORestrictPeerSelectionBy**
Starting in Windows 10, version 1803, configure this policy to restrict peer selection via selected option. In Windows 11, the 'Local Peer Discovery' option was introduced to restrict peer discovery to the local network. Currently the available options include: 0 = NAT, 1 = Subnet mask, and 2 = Local Peer Discovery. These options apply to both Download Modes LAN (1) and Group (2) and therefore means there's no peering between subnets.
If Group mode is configured, Delivery Optimization connects to locally discovered peers that are also part of the same Group (have the same Group ID).
If Group mode is configured, Delivery Optimization connects to locally discovered peers that are also part of the same Group (have the same Group ID) and prevents devices that aren't using the same Group ID from participating.
In Windows 11, the Local Peer Discovery (DNS-SD) option can be configured via MDM or Group Policy. However, in Windows 10, this feature can be enabled by setting the `HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeliveryOptimization\DORestrictPeerSelectionBy` value to **2**.
The default behaviors differ between Windows 10 and Windows 11. In Windows 10, there is no restriction configured. In Windows 11, the default peer selection is restricted to the Subnet only in LAN [Download mode](#download-mode) (1)
### Delay foreground download from HTTP (in secs)
MDM Setting: **DODelayForegroundDownloadFromHttp**