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9
windows/deployment/do/waas-delivery-optimization-faq.yml
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@ -12,7 +12,7 @@ metadata:
- highpri - highpri
- tier3 - tier3
ms.topic: faq ms.topic: faq
ms.date: 04/17/2023 ms.date: 06/28/2023
title: Delivery Optimization Frequently Asked Questions title: Delivery Optimization Frequently Asked Questions
summary: | summary: |
**Applies to** **Applies to**
@ -111,7 +111,7 @@ sections:
The recommended configuration for Delivery Optimization Peer-to-Peer to work most efficiently along with cloud proxy solutions (for example, Zscaler) is to allow traffic to the Delivery Optimization services to go directly to the internet and not through the cloud proxy. The recommended configuration for Delivery Optimization Peer-to-Peer to work most efficiently along with cloud proxy solutions (for example, Zscaler) is to allow traffic to the Delivery Optimization services to go directly to the internet and not through the cloud proxy.
At a minimum, the following FQDN that is used for communication between clients and the Delivery Optimization service should be allowed with direct Internet access and bypass the cloud proxy service: At a minimum, the following FQDN that is used for communication between clients and the Delivery Optimization service should be allowed with direct Internet access and bypass the cloud proxy service:
- *.prod.do.dsp.mp.microsoft.com - `*.prod.do.dsp.mp.microsoft.com`
If allowing direct Internet access isn't an option, try using Group Download Mode '2' to define the peering group. [Learn more](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) about using Group Download mode. If allowing direct Internet access isn't an option, try using Group Download Mode '2' to define the peering group. [Learn more](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) about using Group Download mode.
@ -119,7 +119,8 @@ sections:
answer: | answer: |
Delivery Optimization is an HTTP downloader used by most content providers from Microsoft. When a device is configured to use Delivery Optimization peering (on by default), it does so with the HTTP downloader capabilities to optimize bandwidth usage. Delivery Optimization is an HTTP downloader used by most content providers from Microsoft. When a device is configured to use Delivery Optimization peering (on by default), it does so with the HTTP downloader capabilities to optimize bandwidth usage.
If you'd like to disable peer-to-peer capabilities of Delivery Optimization, change the Delivery Optimization [Download mode](waas-delivery-optimization-reference.md#download-mode) setting to '0', which will disable peer-to-peer and provide hash checks. [Download mode](waas-delivery-optimization-reference.md#download-mode) set to '99' should only be used when the device is offline and doesn't have internet access. If you'd like to disable peer-to-peer capabilities of Delivery Optimization, change the Delivery Optimization [Download mode](waas-delivery-optimization-reference.md#download-mode) setting to '0', which will disable peer-to-peer and provide hash checks. [Download mode](waas-delivery-optimization-reference.md#download-mode) set to '99' should only be used when the device is offline and doesn't have internet access.
Don't set **Download mode** to '100' (Bypass), which can cause some content to fail to download. Starting in Windows 11, Download mode '100' is deprecated.
> [!NOTE] > [!NOTE]
> Disabling Delivery Optimization won't prevent content from downloading to your devices. If you're looking to pause updates, you need to set policies for the relevant components such as Windows Update, Windows Store or Edge browser. If you're looking to reduce the load on your network, look into using Delivery Optimization Peer-to-Peer, Microsoft Connected Cache or apply the [network throttling policies](waas-delivery-optimization-reference.md#maximum-download-bandwidth) available for Delivery Optimization. > Disabling Delivery Optimization won't prevent content from downloading to your devices. If you're looking to pause updates, you need to set policies for the relevant components such as Windows Update, Windows Store or Edge browser. If you're looking to reduce the load on your network, look into using Delivery Optimization Peer-to-Peer, Microsoft Connected Cache or apply the [network throttling policies](waas-delivery-optimization-reference.md#maximum-download-bandwidth) available for Delivery Optimization.
@ -129,4 +130,4 @@ sections:
- question: What Delivery Optimization settings are available? - question: What Delivery Optimization settings are available?
answer: | answer: |
There are many different Delivery Optimization [settings](waas-delivery-optimization-reference.md) available. These settings allow you to effectively manage how Delivery Optimization is used within your environment with control s on bandwidth, time of day, etc. There are many different Delivery Optimization [settings](waas-delivery-optimization-reference.md) available. These settings allow you to effectively manage how Delivery Optimization is used within your environment with control s on bandwidth, time of day, etc.

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windows/deployment/do/waas-delivery-optimization-reference.md
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@ -8,7 +8,7 @@ ms.localizationpriority: medium
ms.author: carmenf ms.author: carmenf
ms.topic: article ms.topic: article
ms.technology: itpro-updates ms.technology: itpro-updates
ms.date: 12/31/2017 ms.date: 06/28/2023
ms.collection: tier3 ms.collection: tier3
--- ---
@ -128,11 +128,8 @@ Download mode dictates which download sources clients are allowed to use when do
| Group (2) | When group mode is set, the group is automatically selected based on the device's Active Directory Domain Services (AD DS) site (Windows 10, version 1607) or the domain the device is authenticated to (Windows 10, version 1511). In group mode, peering occurs across internal subnets, between devices that belong to the same group, including devices in remote offices. You can use GroupID option to create your own custom group independently of domains and AD DS sites. Starting with Windows 10, version 1803, you can use the GroupIDSource parameter to take advantage of other method to create groups dynamically. Group download mode is the recommended option for most organizations looking to achieve the best bandwidth optimization with Delivery Optimization. | | Group (2) | When group mode is set, the group is automatically selected based on the device's Active Directory Domain Services (AD DS) site (Windows 10, version 1607) or the domain the device is authenticated to (Windows 10, version 1511). In group mode, peering occurs across internal subnets, between devices that belong to the same group, including devices in remote offices. You can use GroupID option to create your own custom group independently of domains and AD DS sites. Starting with Windows 10, version 1803, you can use the GroupIDSource parameter to take advantage of other method to create groups dynamically. Group download mode is the recommended option for most organizations looking to achieve the best bandwidth optimization with Delivery Optimization. |
| Internet (3) | Enable Internet peer sources for Delivery Optimization. | | Internet (3) | Enable Internet peer sources for Delivery Optimization. |
| Simple (99) | Simple mode disables the use of Delivery Optimization cloud services completely (for offline environments). Delivery Optimization switches to this mode automatically when the Delivery Optimization cloud services are unavailable, unreachable, or when the content file size is less than 10 MB. In this mode, Delivery Optimization provides a reliable download experience over HTTP from the download's original source or a Microsoft Connected Cache server, with no peer-to-peer caching. | | Simple (99) | Simple mode disables the use of Delivery Optimization cloud services completely (for offline environments). Delivery Optimization switches to this mode automatically when the Delivery Optimization cloud services are unavailable, unreachable, or when the content file size is less than 10 MB. In this mode, Delivery Optimization provides a reliable download experience over HTTP from the download's original source or a Microsoft Connected Cache server, with no peer-to-peer caching. |
| Bypass (100) | This option is deprecated starting in Windows 11. If you want to disable peer-to-peer functionality, it's best to set DownloadMode to (0). If your device doesn’t have internet access, set Download Mode to (99). Bypass Delivery Optimization and use BITS, instead. You should only select this mode if you use WSUS and prefer to use BranchCache. You don't need to set this option if you're using Configuration Manager. | | Bypass (100) | Starting in Windows 11, this option is deprecated. Don't set **Download mode** to '100' (Bypass), which can cause some content to fail to download. If you want to disable peer-to-peer functionality, set DownloadMode to (0). If your device doesn't have internet access, set Download Mode to (99). When you set Bypass (100), the download bypasses Delivery Optimization and uses BITS instead. You don't need to set this option if you're using Configuration Manager. |
> [!NOTE]
> Starting in Windows 11, the Bypass option of Download Mode is deprecated.
>
> [!NOTE] > [!NOTE]
> When you use Azure Active Directory tenant, AD Site, or AD Domain as the source of group IDs, the association of devices participating in the group should not be relied on for an authentication of identity of those devices. > When you use Azure Active Directory tenant, AD Site, or AD Domain as the source of group IDs, the association of devices participating in the group should not be relied on for an authentication of identity of those devices.