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8
windows/deployment/do/waas-delivery-optimization-faq.yml
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@ -17,7 +17,7 @@ metadata:
- ✅ <a href=https://learn.microsoft.com/windows/release-health/supported-versions-windows-client target=_blank>Windows 10</a> - ✅ <a href=https://learn.microsoft.com/windows/release-health/supported-versions-windows-client target=_blank>Windows 10</a>
- ✅ <a href=https://learn.microsoft.com/en-us/windows/release-health/windows-server-release-info target=_blank>Windows Server 2019, and later</a> - ✅ <a href=https://learn.microsoft.com/en-us/windows/release-health/windows-server-release-info target=_blank>Windows Server 2019, and later</a>
- ✅ <a href=https://learn.microsoft.com/windows/deployment/do/waas-delivery-optimization target=_blank>Delivery Optimization</a> - ✅ <a href=https://learn.microsoft.com/windows/deployment/do/waas-delivery-optimization target=_blank>Delivery Optimization</a>
ms.date: 09/10/2024 ms.date: 10/15/2024
title: Frequently Asked Questions about Delivery Optimization title: Frequently Asked Questions about Delivery Optimization
summary: | summary: |
This article answers frequently asked questions about Delivery Optimization. This article answers frequently asked questions about Delivery Optimization.
@ -42,6 +42,7 @@ summary: |
**Peer-to-peer related questions**: **Peer-to-peer related questions**:
- [How does Delivery Optimization determine which content is available for peering?](#how-does-delivery-optimization-determine-which-content-is-available-for-peering) - [How does Delivery Optimization determine which content is available for peering?](#how-does-delivery-optimization-determine-which-content-is-available-for-peering)
- [Where does Delivery Optimization get content from first?](#where-does-delivery-optimization-get-content-from-first)
- [Does Delivery Optimization use multicast?](#does-delivery-optimization-use-multicast) - [Does Delivery Optimization use multicast?](#does-delivery-optimization-use-multicast)
- [How does Delivery Optimization deal with congestion on the router from peer-to-peer activity on the LAN?](#how-does-delivery-optimization-deal-with-congestion-on-the-router-from-peer-to-peer-activity-on-the-lan) - [How does Delivery Optimization deal with congestion on the router from peer-to-peer activity on the LAN?](#how-does-delivery-optimization-deal-with-congestion-on-the-router-from-peer-to-peer-activity-on-the-lan)
- [How does Delivery Optimization handle VPNs?](#how-does-delivery-optimization-handle-vpns) - [How does Delivery Optimization handle VPNs?](#how-does-delivery-optimization-handle-vpns)
@ -128,6 +129,11 @@ sections:
- question: How does Delivery Optimization determine which content is available for peering? - question: How does Delivery Optimization determine which content is available for peering?
answer: | answer: |
Delivery Optimization uses the cache content on the device to determine what's available for peering. For the upload source device, there's a limited number (4) of slots for cached content that's available for peering at a given time. Delivery Optimization contains logic that rotates the cached content in those slots. Delivery Optimization uses the cache content on the device to determine what's available for peering. For the upload source device, there's a limited number (4) of slots for cached content that's available for peering at a given time. Delivery Optimization contains logic that rotates the cached content in those slots.
- question: Where does Delivery Optimization get content from first?
answer: |
When Delivery Optimization client is configured to use peers and Microsoft Connected Cache (MCC), the client connects to both MCC and peers in parallel. There is no prioritization between the two. Once downloading starts in parallel, Delivery Optimization
will taper off requests to the HTTP source (CDN or MCC) when the peer connections are able to reach the target download speed. For background downloads, Delivery Optimization will drop HTTP connections if peers are meeting the minimum QoS speed. To manage delaying the default behavior
there are a collection of policies that can be used. For more information, see [Delivery Optimization delay policies](waas-delivery-optimization-reference.md#policies-to-prioritize-the-use-of-peer-to-peer-and-cache-server-sources).
- question: Does Delivery Optimization use multicast? - question: Does Delivery Optimization use multicast?
answer: | answer: |
No. It relies on the cloud service for peer discovery, resulting in a list of peers and their IP addresses. Client devices then connect to their peers to obtain download files over TCP/IP. No. It relies on the cloud service for peer discovery, resulting in a list of peers and their IP addresses. Client devices then connect to their peers to obtain download files over TCP/IP.

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windows/deployment/do/waas-delivery-optimization-reference.md
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@ -14,7 +14,7 @@ appliesto:
- ✅ <a href=https://learn.microsoft.com/windows/release-health/supported-versions-windows-client target=_blank>Windows 11</a> - ✅ <a href=https://learn.microsoft.com/windows/release-health/supported-versions-windows-client target=_blank>Windows 11</a>
- ✅ <a href=https://learn.microsoft.com/windows/release-health/supported-versions-windows-client target=_blank>Windows 10</a> - ✅ <a href=https://learn.microsoft.com/windows/release-health/supported-versions-windows-client target=_blank>Windows 10</a>
- ✅ <a href=https://learn.microsoft.com/windows/deployment/do/waas-delivery-optimization target=_blank>Delivery Optimization</a> - ✅ <a href=https://learn.microsoft.com/windows/deployment/do/waas-delivery-optimization target=_blank>Delivery Optimization</a>
ms.date: 05/23/2024 ms.date: 10/15/2024
--- ---
# Delivery Optimization reference # Delivery Optimization reference
@ -106,7 +106,7 @@ When Delivery Optimization client is configured to use peers and Microsoft Conne
##### Microsoft Connected Cache (MCC) delay fallback settings ##### Microsoft Connected Cache (MCC) delay fallback settings
- [Delay foreground download cache server fallback (in secs)](#delay-foreground-download-cache-server-fallback-in-secs) allows you to delay the use of an HTTP source in a foreground (interactive) download that is allowed to use a cache server. - [Delay foreground download cache server fallback (in secs)](#delay-foreground-download-cache-server-fallback-in-secs) allows you to delay the use of an HTTP source in a foreground (interactive) download that is allowed to use a cache server.
- [Delay background download from HTTP (in secs)](#delay-background-download-from-http-in-secs) allows you to delay the use of an HTTP source in a background download that is allowed to use a cache server. - [Delay background download cache server fallback (in secs)](#delay-background-download-cache-server-fallback-in-secs) allows you to delay the use of an HTTP source in a background download that is allowed to use a cache server.
**If both peer-to-peer and MCC are configured, the peer-to-peer delay settings will take precedence over the cache server delay settings.** This setting allows Delivery Optimization to discover peers first then recognize the fallback setting for the MCC cache server. **If both peer-to-peer and MCC are configured, the peer-to-peer delay settings will take precedence over the cache server delay settings.** This setting allows Delivery Optimization to discover peers first then recognize the fallback setting for the MCC cache server.
@ -245,13 +245,13 @@ The default behaviors differ between Windows 10 and Windows 11. In Windows 10, t
MDM Setting: **DODelayForegroundDownloadFromHttp** MDM Setting: **DODelayForegroundDownloadFromHttp**
Starting in Windows 10, version 1803, allows you to delay the use of an HTTP source in a foreground (interactive) download that is allowed to use peer-to-peer. The maximum value is 4294967295 seconds. **By default, this policy isn't configured.** Starting in Windows 10, version 1803, allows you to delay the use of an HTTP source in a foreground (interactive) download that is allowed to use peer-to-peer. **By default, this policy isn't configured.**
### Delay background download from HTTP (in secs) ### Delay background download from HTTP (in secs)
MDM Setting: **DODelayBackgroundDownloadFromHttp** MDM Setting: **DODelayBackgroundDownloadFromHttp**
Starting in Windows 10, version 1803, this allows you to delay the use of an HTTP source in a background download that is allowed to use peer-to-peer. The maximum value is 4294967295 seconds. **By default, this policy isn't configured.** Starting in Windows 10, version 1803, this allows you to delay the use of an HTTP source in a background download that is allowed to use peer-to-peer. **By default, this policy isn't configured.**
### Delay foreground download cache server fallback (in secs) ### Delay foreground download cache server fallback (in secs)