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Updates to commonly asked questions for DO
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windows/deployment/do/TOC.yml
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@ -65,7 +65,7 @@
href: mcc-isp-support.md
- name: MCC for ISPs (early preview)
href: mcc-isp.md
- name: Content endpoints for Delivery Optimization and Microsoft Connected Cache
- name: Endpoints for Microsoft Connected Cache content and services
href: delivery-optimization-endpoints.md

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windows/deployment/do/waas-delivery-optimization-faq.yml
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@ -23,13 +23,13 @@ sections:
- name: Ignored
questions:
- question: Does Delivery Optimization work with WSUS?
answer: Yes. Devices will obtain the update payloads from the WSUS server, but must also have an internet connection as they communicate with the Delivery Optimization cloud service for coordination.
answer: Yes. Devices obtain the update payloads from the WSUS server, but must also have an internet connection as they communicate with the Delivery Optimization cloud service for coordination.
- question: Which ports does Delivery Optimization use?
answer: |
Delivery Optimization listens on port 7680 for requests from other peers by using TCP/IP. The service will register and open this port on the device. The port must be set to accept inbound traffic through your firewall. If you don't allow inbound traffic over port 7680, you can't use the peer-to-peer functionality of Delivery Optimization. However, devices can still successfully download by using HTTP or HTTPS traffic over port 80 (such as for default Windows Update data).
Delivery Optimization listens on port 7680 for requests from other peers by using TCP/IP. The service registers and opens this port on the device. The port must be set to accept inbound traffic through your firewall. If you don't allow inbound traffic over port 7680, you can't use the peer-to-peer functionality of Delivery Optimization. However, devices can still successfully download by using HTTP or HTTPS traffic over port 80 (such as for default Windows Update data).
Delivery Optimization will use Teredo to create peer groups, which include devices across NATs (or any form of internal subnet that uses gateways or firewalls between subnets). To enable this scenario, you must allow inbound TCP/IP traffic over port 3544. Look for a "NAT traversal" setting in your firewall to set this up.
Delivery Optimization uses Teredo to create peer groups, which include devices across NATs (or any form of internal subnet that uses gateways or firewalls between subnets). To enable this scenario, you must allow inbound TCP/IP traffic over port 3544. Look for a "NAT traversal" setting in your firewall to set this up.
Delivery Optimization also communicates with its cloud service by using HTTP/HTTPS over port 80.
@ -40,12 +40,11 @@ sections:
answer: |
**For communication between clients and the Delivery Optimization cloud service**:
- `*.do.dsp.mp.microsoft.com`
- `*.prod.do.dsp.mp.microsoft.com`
**For Delivery Optimization metadata**:
- `*.dl.delivery.mp.microsoft.com`
- `*.emdl.ws.microsoft.com`
**For the payloads (optional)**:
@ -66,11 +65,11 @@ sections:
- question: How does Delivery Optimization handle VPNs?
answer: |
Delivery Optimization attempts to identify VPNs by checking the network adapter type and details. A connection will be treated as a VPN if the adapter description contains certain keywords, such as "VPN" or "secure."
Delivery Optimization attempts to identify VPNs by checking the network adapter type and details. A connection is treated as a VPN if the adapter description contains certain keywords, such as "VPN" or "secure."
If the connection is identified as a VPN, Delivery Optimization will suspend uploads to other peers. However, you can allow uploads over a VPN by using the [Enable Peer Caching while the device connects via VPN](../do/waas-delivery-optimization-reference.md#enable-peer-caching-while-the-device-connects-via-vpn) policy.
If the connection is identified as a VPN, Delivery Optimization suspends uploads to other peers. However, you can allow uploads over a VPN by using the [Enable Peer Caching while the device connects via VPN](../do/waas-delivery-optimization-reference.md#enable-peer-caching-while-the-device-connects-via-vpn) policy.
If you have defined a boundary group in Configuration Manager for VPN IP ranges, you can set the [DownloadMode](../do/waas-delivery-optimization-reference.md#download-mode) policy to 0 for that boundary group, to ensure that there will be no peer-to-peer activity over the VPN. When the device isn't connected using a VPN, it can still use peer-to-peer with the default of LAN.
If you have defined a boundary group in Configuration Manager for VPN IP ranges, you can set the [DownloadMode](../do/waas-delivery-optimization-reference.md#download-mode) policy to 0 for that boundary group, to ensure that there's no peer-to-peer activity over the VPN. When the device isn't connected using a VPN, it can still use peer-to-peer with the default of LAN.
With split tunneling, make sure to allow direct access to these endpoints:
@ -80,7 +79,6 @@ sections:
Delivery Optimization metadata:
- `http://emdl.ws.microsoft.com`
- `http://download.windowsupdate.com`
- `http://*.dl.delivery.mp.microsoft.com`
@ -108,3 +106,27 @@ sections:
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.
- question: What is the recommended configuration for Delivery Optimization used with cloud proxies (for example, Zscaler)?
answer: |
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:
- *.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.
- question: How do I turn off Delivery Optimization?
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.
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.
> [!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.
- question: Delivery Optimization is using device resources and I can't tell why?
answer: |
Delivery Optimization is used by most content providers from Microsoft. A complete list can be found [here](waas-delivery-optimization.md#types-of-download-content-supported-by-delivery-optimization). Oftentimes customers may not realize the vast application of Delivery Optimization and how it's used across different apps. Content providers have the option to run downloads in the foreground or background. It's good to check any apps running in the background to see what is running. Also note that depending on the app, closing the app may not necessarily stop the download.
- question: What Delivery Optimization settings are available?
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.

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windows/deployment/do/waas-delivery-optimization-setup.md
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@ -26,15 +26,15 @@ ms.collection: tier3
You can use Group Policy or an MDM solution like Intune to configure Delivery Optimization.
You'll find the Delivery Optimization settings in Group Policy under **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization**.
You find the Delivery Optimization settings in Group Policy under **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization**.
Starting with Microsoft Intune version 1902, you can set many Delivery Optimization policies as a profile, which you can then apply to groups of devices. For more information, see [Delivery Optimization settings in Microsoft Intune](/mem/intune/configuration/delivery-optimization-windows).
**Starting with Windows 10, version 1903**, you can use the Azure Active Directory (Azure AD) Tenant ID as a means to define groups. To do this set the value for [DOGroupIDSource](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) to its new maximum value of 5.
**Starting with Windows 10, version 1903**, you can use the Azure Active Directory (Azure AD) Tenant ID as a means to define groups. To set the value for [DOGroupIDSource](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) to its new maximum value of 5.
## Allow service endpoints
When using a firewall, it's important that the Delivery Optimization Service endpoints are allowed and associated ports are open. For more information, see [Delivery Optimization FAQ](waas-delivery-optimization-faq.yml#what-hostnames-should-i-allow-through-my-firewall-to-support-delivery-optimization) for more information.
When using a firewall, it's important that the Delivery Optimization Service endpoints are allowed and associated ports are open. For more information, see [Delivery Optimization FAQ](waas-delivery-optimization-faq.yml#what-hostnames-should-i-allow-through-my-firewall-to-support-delivery-optimization).
## Allow content endpoints
@ -42,9 +42,9 @@ When using a firewall, it's important that the content endpoints are allowed and
## Recommended Delivery Optimization settings
Delivery Optimization offers a great many settings to fine-tune its behavior (see [Delivery Optimization reference](waas-delivery-optimization-reference.md) for a comprehensive list), but for the most efficient performance, there are just a few key parameters that will have the greatest impact if particular situations exist in your deployment. If you just need an overview of Delivery Optimization, see [Delivery Optimization for Windows 10 updates](waas-delivery-optimization.md).
Delivery Optimization offers a great many settings to fine-tune its behavior see [Delivery Optimization reference](waas-delivery-optimization-reference.md) for a comprehensive list, but for the most efficient performance, there are just a few key parameters that have the greatest impact if particular situations exist in your deployment. If you just need an overview of Delivery Optimization, see [Delivery Optimization for Windows 10 updates](waas-delivery-optimization.md).
- Does your topology include multiple breakouts to the internet (i.e., a "hybrid WAN") or are there only a few connections to the internet, so that all requests appear to come from a single external IP address (a "hub and spoke" topology)?
- Does your topology include multiple breakouts to the internet that is, a "hybrid WAN" or are there only a few connections to the internet, so that all requests appear to come from a single external IP address a "hub and spoke" topology?
- If you use boundary groups in your topology, how many devices are present in a given group?
- What percentage of your devices are mobile?
- Do your devices have a lot of free space on their drives?
@ -69,17 +69,17 @@ Quick-reference table:
For this scenario, grouping devices by domain allows devices to be included in peer downloads and uploads across VLANs. **Set Download Mode to 2 - Group**. The default group, when the GroupID or GroupIDSource policies aren't set, is the AD Site (1), Authenticated domain SID (2) or AAD Tenant ID (5), in that order. If your domain-based group is too wide, or your Active Directory sites aren't aligned with your site network topology, then you should consider other options for dynamically creating groups, for example by using the [DOGroupIDSource](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) policy.
To do this in Group Policy go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Download mode** to **2**.
In Group Policy go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Download mode** to **2**.
To do this with MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DODownloadMode](/windows/client-management/mdm/policy-csp-deliveryoptimization#dodownloadmode) to 1 or 2.
Using with MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DODownloadMode](/windows/client-management/mdm/policy-csp-deliveryoptimization#dodownloadmode) to 1 or 2.
### Hub and spoke topology with boundary groups
The default download mode setting is **1**; this means all devices breaking out to the internet using the same public IP will be considered as a single peer group. To prevent peer-to-peer activity across your WAN, you should set the download mode to **2**. If you have already defined Active Directory sites per hub or branch office, then you don't need to do anything else since those will be used by default as the source for creation of Group IDs. If you're not using Active Directory sites, you should set a different source for Groups by using the [DOGroupIDSource](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) options or the [DORestrictPeerSelectionBy](waas-delivery-optimization-reference.md#select-a-method-to-restrict-peer-selection) policy to restrict the activity to the subnet.
The default download mode setting is **1**; this means all devices breaking out to the internet using the same public IP is considered as a single peer group. To prevent peer-to-peer activity across your WAN, you should set the download mode to **2**. If you have already defined Active Directory sites per hub or branch office, then you don't need to do anything else since the Active Directory sites are used by default as the source for creation of Group IDs. If you're not using Active Directory sites, you should set a different source for Groups by using the [DOGroupIDSource](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) options or the [DORestrictPeerSelectionBy](waas-delivery-optimization-reference.md#select-a-method-to-restrict-peer-selection) policy to restrict the activity to the subnet.
To do this in Group Policy go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Download mode** to **2**.
With Group Policy go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Download mode** to **2**.
To do this with MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DODownloadMode](/windows/client-management/mdm/policy-csp-deliveryoptimization#dodownloadmode) to **2**.
Using MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DODownloadMode](/windows/client-management/mdm/policy-csp-deliveryoptimization#dodownloadmode) to **2**.
> [!NOTE]
> For more information about using Delivery Optimization with Configuration Manager boundary groups, see [Delivery Optimization for Configuration Manager](/mem/configmgr/core/plan-design/hierarchy/fundamental-concepts-for-content-management#delivery-optimization).
@ -88,25 +88,25 @@ To do this with MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimiza
If you have a mobile workforce with a great many mobile devices, set Delivery Optimization to allow uploads on battery power, while limiting the use to prevent battery drain. A setting for **DOMinBatteryPercentageAllowedToUpload** of 60% is a good starting point, though you might want to adjust it later.
To do this in Group Policy, go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Allow uploads while the device is on battery while under set Battery level** to 60.
With Group Policy, go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Allow uploads while the device is on battery while under set Battery level** to 60.
To do this with MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DOMinBatteryPercentageAllowedToUpload](/windows/client-management/mdm/policy-csp-deliveryoptimization#dominbatterypercentageallowedtoupload) to 60.
Using MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DOMinBatteryPercentageAllowedToUpload](/windows/client-management/mdm/policy-csp-deliveryoptimization#dominbatterypercentageallowedtoupload) to 60.
### Plentiful free space and large numbers of devices
Many devices now come with large internal drives. You can set Delivery Optimization to take better advantage of this space (especially if you have large numbers of devices) by changing the minimum file size to cache. If you've more than 30 devices in your local network or group, change it from the default 50 MB to 10 MB. If you've more than 100 devices (and are running Windows 10, version 1803 or later), set this value to 1 MB.
Many devices now come with large internal drives. You can set Delivery Optimization to take better advantage of this space (especially if you have large numbers of devices) by changing the minimum file size to cache. If you have more than 30 devices in your local network or group, change it from the default 50 MB to 10 MB. If you have more than 100 devices (and are running Windows 10, version 1803 or later), set this value to 1 MB.
To do this in Group Policy, go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Minimum Peer Caching Content File Size** to 10 (if you've more than 30 devices) or 1 (if you've more than 100 devices).
With Group Policy, go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Minimum Peer Caching Content File Size** to 10 (if you have more than 30 devices) or 1 (if you have more than 100 devices).
To do this with MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DOMinFileSizeToCache](/windows/client-management/mdm/policy-csp-deliveryoptimization#dominfilesizetocache) to 100 (if you've more than 30 devices) or 1 (if you've more than 100 devices).
Using MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DOMinFileSizeToCache](/windows/client-management/mdm/policy-csp-deliveryoptimization#dominfilesizetocache) to 100 (if you have more than 30 devices) or 1 (if you have more than 100 devices).
### Lab scenario
In a lab situation, you typically have a large number of devices that are plugged in and have a lot of free disk space. By increasing the content expiration interval, you can take advantage of these devices, using them as excellent upload sources in order to upload much more content over a longer period.
In a lab situation, you typically have a large number of devices that are plugged in and have a lot of free disk space. By increasing the content expiration interval, you can take advantage of these devices, using them as excellent upload sources in order to upload more content over a longer period.
To do this in Group Policy, go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Max Cache Age** to **604800** (7 days) or more (up to 30 days).
With Group Policy, go to **Computer Configuration\Administrative Templates\Windows Components\Delivery Optimization** and set **Max Cache Age** to **604800** (7 days) or more (up to 30 days).
To do this with MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DOMaxCacheAge](/windows/client-management/mdm/policy-csp-deliveryoptimization#domaxcacheage) to 7 or more (up to 30 days).
Using MDM, go to **./Device/Vendor/MSFT/Policy/Config/DeliveryOptimization/** and set [DOMaxCacheAge](/windows/client-management/mdm/policy-csp-deliveryoptimization#domaxcacheage) to 7 or more (up to 30 days).
[Learn more](delivery-optimization-test.md) about Delivery Optimization testing scenarios.
@ -140,7 +140,7 @@ Try these steps:
1. Start a download of an app that is larger than 50 MB from the Store (for example "Candy Crush Saga").
2. Run `Get-DeliveryOptimizationStatus` from an elevated PowerShell window and observe the [DODownloadMode](waas-delivery-optimization-reference.md#download-mode) setting. For peering to work, download mode should be 1, 2, or 3.
3. If the download mode is 99, it could indicate your device is unable to reach the Delivery Optimization cloud services. Ensure that the Delivery Optimization host names are allowed access: most importantly **\*.do.dsp.mp.microsoft.com**.
3. If the download mode is 99, it could indicate your device is unable to reach the Delivery Optimization cloud services. Ensure that the Delivery Optimization host names are allowed access: most importantly **\*.prod.do.dsp.mp.microsoft.com**.
### The cloud service doesn't see other peers on the network
@ -148,8 +148,8 @@ Try these steps:
1. Download the same app on two different devices on the same network, waiting 10 – 15 minutes between downloads.
2. Run `Get-DeliveryOptimizationStatus` from an elevated PowerShell window and ensure that **[DODownloadMode](waas-delivery-optimization-reference.md#download-mode)** is 1 or 2 on both devices.
3. Run `Get-DeliveryOptimizationPerfSnap` from an elevated PowerShell window on the second device. The **NumberOfPeers** field should be non-zero.
4. If the number of peers is zero and **[DODownloadMode](waas-delivery-optimization-reference.md#download-mode)** is 1, ensure that both devices are using the same public IP address to reach the internet (you can easily do this by opening a browser window and do a search for “what is my IP”). In the case where devices aren't reporting the same public IP address, configure **[DODownloadMode](waas-delivery-optimization-reference.md#download-mode)** to 2 (Group) and use a custom **[DOGroupID (Guid)](waas-delivery-optimization-reference.md#group-id)**, to fix this.
3. Run `Get-DeliveryOptimizationPerfSnap` from an elevated PowerShell window on the second device. The **NumberOfPeers** field should be nonzero.
4. If the number of peers is zero and **[DODownloadMode](waas-delivery-optimization-reference.md#download-mode)** is 1, ensure that both devices are using the same public IP address to reach the internet (you can easily do this by opening a browser window and do a search for “what is my IP”). In the case where devices aren't reporting the same public IP address, configure **[DODownloadMode](waas-delivery-optimization-reference.md#download-mode)** to 2 (Group) and use a custom **[DOGroupID (Guid)](waas-delivery-optimization-reference.md#group-id)**.
> [!NOTE]
> Starting in Windows 10, version 2004, `Get-DeliveryOptimizationStatus` has a new option `-PeerInfo` which returns a real-time list of potential peers per file, including which peers are successfully connected and the total bytes sent or received from each peer.

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windows/deployment/do/waas-delivery-optimization.md
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@ -23,9 +23,9 @@ ms.date: 12/31/2017
> **Looking for Group Policy objects?** See [Delivery Optimization reference](waas-delivery-optimization-reference.md) or the master spreadsheet available at the Download Center [for Windows 11](https://www.microsoft.com/en-us/download/details.aspx?id=104594) or [for Windows 10](https://www.microsoft.com/en-us/download/details.aspx?id=104678).
Windows updates, upgrades, and applications can contain packages with large files. Downloading and distributing updates can consume quite a bit of network resources on the devices receiving them. Delivery Optimization is a reliable HTTP downloader with a cloud-managed solution that allows Windows devices to download those packages from alternate sources if desired (such as other devices on the network and/or a dedicated cache server) in addition to the traditional internet-based servers (referred to as 'HTTP sources' throughout Delivery Optimization documents). You can use Delivery Optimization to reduce bandwidth consumption by sharing the work of downloading these packages among multiple devices in your deployment however, the use of peer-to-peer is completely optional.
Windows updates, upgrades, and applications can contain packages with large files. Downloading and distributing updates can consume quite a bit of network resources on the devices receiving them. Delivery Optimization is a reliable HTTP downloader with a cloud-managed solution that allows Windows devices to download those packages from alternate sources if desired (such as other devices on the network and/or a dedicated cache server) in addition to the traditional internet-based servers (referred to as 'HTTP sources' throughout Delivery Optimization documents). You can use Delivery Optimization to reduce bandwidth consumption by sharing the work of downloading these packages among multiple devices in your deployment however, the use of peer-to-peer is optional.
To use either the peer-to-peer functionality or the Microsoft Connected Cache features, devices must have access to the Internet and Delivery Optimization cloud services. When Delivery Optimization is configured to use peers and Microsoft Connected Cache (MCC), to achieve the best possible content delivery experience, the client will connect to MCC and peers in parallel. If the desired content can't be obtained from MCC or peers, Delivery Optimization will seamlessly fall back to the HTTP source to get the requested content.
To use either the peer-to-peer functionality or the Microsoft Connected Cache features, devices must have access to the Internet and Delivery Optimization cloud services. When Delivery Optimization is configured to use peers and Microsoft Connected Cache (MCC), to achieve the best possible content delivery experience, the client connects to MCC and peers in parallel. If the desired content can't be obtained from MCC or peers, Delivery Optimization seamlessly falls back to the HTTP source to get the requested content.
You can use Delivery Optimization with Windows Update, Windows Server Update Services (WSUS), Microsoft Intune/Windows Update for Business, or Microsoft Configuration Manager (when installation of Express Updates is enabled).
@ -50,9 +50,9 @@ The following table lists the minimum Windows 10 version that supports Delivery
| Windows Client | Minimum Windows version | HTTP Downloader | Peer to Peer | Microsoft Connected Cache (MCC)
|------------------|---------------|----------------|----------|----------------|
| Windows Update (feature updates quality updates, language packs, drivers) | Windows 10 1511, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Windows 10 Store files | Windows 10 1511, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Windows 10 Store for Business files | Windows 10 1511, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Windows Update ([feature updates quality updates, language packs, drivers](../update/get-started-updates-channels-tools.md#types-of-updates)) | Windows 10 1511, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Windows 10 Store apps | Windows 10 1511, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Windows 10 Store for Business apps | Windows 10 1511, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Windows Defender definition updates | Windows 10 1511, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Intune Win32 apps| Windows 10 1709, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| Microsoft 365 Apps and updates | Windows 10 1709, Windows 11 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |

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windows/deployment/do/waas-microsoft-connected-cache.md
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@ -23,8 +23,9 @@ ms.collection: tier3
> Microsoft Connected Cache is currently a preview feature. For more information, see [Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/).
Microsoft Connected Cache is a software-only caching solution that delivers Microsoft content. Microsoft Connected Cache has two main offerings:
- Microsoft Connected Cache for Internet Service Providers
- Microsoft Connected Cache for Enterprise and Education (early preview).
- Microsoft Connected Cache for Enterprise and Education (early preview)
Both products are created and managed in the cloud portal.

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windows/deployment/do/whats-new-do.md
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@ -25,14 +25,19 @@ Microsoft Connected Cache (MCC) is a software-only caching solution that deliver
For more information about MCC, see [Microsoft Connected Cache overview](waas-microsoft-connected-cache.md).
## New in Delivery Optimization for Windows 10, version 20H2 and Windows 11
There are two different versions:
- 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 will connect 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](waas-delivery-optimization-reference.md#select-a-method-to-restrict-peer-selection)** (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 will restrict peer selection to peers that are locally discovered (using DNS-SD). If Group mode is enabled, Delivery Optimization will connect to locally discovered peers that are also part of the same group, for those devices with the same Group ID).
- [Microsoft Connected Cache for Enterprise and Education](mcc-ent-edu-overview.md)
- [Microsoft Connected Cache for ISPs](mcc-isp-overview.md).
## 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](waas-delivery-optimization-reference.md#select-a-method-to-restrict-peer-selection)** (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](https://datatracker.ietf.org/doc/html/rfc6763)) 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](waas-delivery-optimization-reference.md).
- Starting with Windows 11, the Bypass option of [Download Mode](waas-delivery-optimization-reference.md#download-mode) is no longer used.

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windows/deployment/update/wufb-reports-do.md
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@ -11,12 +11,14 @@ ms.technology: itpro-updates
---
# Delivery Optimization data in Windows Update for Business reports
<!--7715481-->
***(Applies to: Windows 11 & Windows 10)***
[Delivery Optimization](../do/waas-delivery-optimization.md) (DO) is a Windows feature that can be used to reduce bandwidth consumption by sharing the work of downloading updates among multiple devices in your environment. You can use DO with many other deployment methods, but it's a cloud-managed solution, and access to the DO cloud services is a requirement.
Windows Update for Business reports provides Delivery Optimization information in the following places:
- The Windows Update for Business reports [workbook](wufb-reports-workbook.md)
- [UCDOAggregatedStatus](wufb-reports-schema-ucdoaggregatedstatus.md)
- [UCDOStatus](wufb-reports-schema-ucdostatus.md)
@ -32,6 +34,7 @@ Windows Update for Business reports uses the following Delivery Optimization ter
- LAN (1)
- Group (2)
- Internet (3)
- **Peering 'OFF'**: Devices where DO peer-to-peer is disabled, set to one of the following modes:
- HTTP Only (0)
- Simple Mode (99)
@ -45,7 +48,7 @@ Windows Update for Business reports uses the following Delivery Optimization ter
- **MCC Device Count**: The device count is the number of devices that have received bytes from the cache server, for supported content types.
- **Total # of Devices**: The total number of devices with activity in last 28 days.
- **LAN Bytes**: Bytes delivered from LAN peers.
- **Group Bytes**: Bytes from Group peers. If a device is using Group DownloadMode, Delivery Optimization will first look for peers on the LAN and then in the Group. Therefore, if bytes are delivered from LAN peers, they'll be calculated in 'LAN Bytes'.
- **Group Bytes**: Bytes from Group peers. If a device is using Group DownloadMode, Delivery Optimization first looks for peers on the LAN and then in the Group. Therefore, if bytes are delivered from LAN peers, they are calculated in 'LAN Bytes'.
- **CDN Bytes**: Bytes delivered from Content Delivery Network (CDN).
- **City**: City is determined based on the location of the device where the maximum amount of data is downloaded.
- **Country**: Country is determined based on the location of the device where the maximum amount of data is downloaded.
@ -53,7 +56,7 @@ Windows Update for Business reports uses the following Delivery Optimization ter
## Calculations for Delivery Optimization
There are several calculated values that appear on the Delivery Optimization report. Listed below each calculation is the table that's used for it:
Each calculated values used in the Delivery Optimization report are listed below.
**Efficiency (%) Calculations**:
@ -92,7 +95,7 @@ There are several calculated values that appear on the Delivery Optimization rep
In the **Efficiency By Group** subsection, the **GroupID** is displayed as an encoded SHA256 hash. You can create a mapping of original to encoded GroupIDs using the following PowerShell example:
```powershell
$text = "<myEncodedGroupID>`0"; (the null-terminator (`0) must be included in the string hash)
$text = "<myOriginalGroupID>" ;
$hashObj = [System.Security.Cryptography.HashAlgorithm]::Create('sha256') ; $dig = $hashObj.ComputeHash([System.Text.Encoding]::Unicode.GetBytes($text)) ; $digB64 = [System.Convert]::ToBase64String($dig) ; Write-Host "$text ==> $digB64"
```
@ -106,8 +109,8 @@ Get-DeliveryOptimizationLog -Flush | Set-Content C:\dosvc.log
The below two lines are together in verbose logs:
```text
2023-02-15T12:33:11.3811337Z 1514 1F4 {CGlobalConfigManager::GetGroupId} Using groupID = **<myEncodedGroupId>**
2023-02-15T12:33:11.3811432Z 1514 1F4 {CGlobalConfigManager::GetGroupId} Hashed groupID = **<myDecodedGroupId>**
2023-02-15T12:33:11.3811337Z 1514 1F4 {CGlobalConfigManager::GetGroupId} Using groupID = **<myOriginalGroupId>**
2023-02-15T12:33:11.3811432Z 1514 1F4 {CGlobalConfigManager::GetGroupId} Hashed groupID = **<myEncodedGroupId>**
```
## Sample queries
@ -142,6 +145,19 @@ DeviceCount = count_distinct(GlobalDeviceId) by GroupID | top 10 by DeviceCount
| project GroupID , P2PPercentage , MCCPercentage , VolumeBytesFromPeers , VolumeBytesFromMCC ,VolumeByCDN , DeviceCount
```
### Delivery Optimization Supported Content Types
There are many Microsoft [content types](waas-delivery-optimization.md#types-of-download-content-supported-by-delivery-optimization) that are supported by Delivery Optimization. All of these content types show up in the 'Content Distribution' section in the Delivery Optimization report. See the [complete table](waas-delivery-optimization.md#windows-client) for P2P/MCC support types.
| Content Category | Content Types Included |
| --- | --- |
| Apps | Windows 10 Store apps, Windows 10 Store for Business apps, Windows 11 UWP Store apps |
| Driver Updates | Windows Update [Driver updates](get-started-updates-channels-tools.md#types-of-updates) |
| Feature Updates | Windows Update [Feature updates](get-started-updates-channels-tools.md#types-of-updates) |
| Office | Microsoft 365 Apps and updates |
| Other | Windows Language Packs, Windows Defender definition updates, Intune Win32 apps, Edge Browser updates, Configuration Manager Express updates, Dynamic updates, MDM Agent, Xbox Game Pass (PC), Windows Package Manager, MSIX Installer (includes Windows 11 Store Win32 apps, Windows 11 Teams updates) |
| Quality Updates | Windows Updates [Quality updates](get-started-updates-channels-tools.md#types-of-updates)) |
## Frequency Asked Questions
- **What time period does the Delivery Optimization data include?**
@ -166,4 +182,10 @@ A row in UCDOStatus represents data downloaded by a combination of a single devi
A row in UCDOAggregatedStatus represents data summarized at the tenant level (AzureADTenantID) for each content type (ContentType).
- **How are BytesFromCache calculated when there's a Connected Cache server used by my ISP?**
If there's a Connected Cache server at the ISP level, BytesFromCache will filter out any bytes coming the ISP's Connected Cache.
If there's a Connected Cache server at the ISP level, BytesFromCache filters out any bytes coming the ISP's Connected Cache.
- **How do the results from the Delivery Optimization PowerShell cmdlets compare to the results in the report?**
[Delivery Optimization PowerShell cmdlets](waas-delivery-optimization-setup.md#monitor-delivery-optimization) can be a powerful tool used to monitor Delivery Optimization data on the device. These cmdlets use the cache on the device. The data calculated in the report is taken from the Delivery Optimization telemetry events.
- **The report represents the last 28 days of data, why do some queries include >= seven days?**
The data in the report does represent the last 28 days of data. The query for last seven days is just to get the data for the latest snapshot from past seven days. It's possible that data is delayed for sometime and not available for current day, so we look for past 7 day snapshot in log analytics and show the latest snapshot.