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38
windows/deployment/update/waas-delivery-optimization-reference.md
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@ -21,7 +21,7 @@ ms.custom: seo-marvel-apr2020
- Windows 10
> **Looking for consumer information?** See [Windows Update: FAQ](https://support.microsoft.com/help/12373/windows-update-faq)
> **Looking for more Group Policy settings?** See the master spreadsheet available at the [Download Center](https://www.microsoft.com/download/details.aspx?id=102158).
There are a great many details you can set in Delivery Optimization to customize it to do just what you need it to. This topic summarizes them for your reference. If you just need an overview of Delivery Optimization, see [Delivery Optimization for Windows 10 updates](waas-delivery-optimization.md). If you need information about setting up Delivery Optimization, including tips for the best settings in different scenarios, see [Set up Delivery Optimization for Windows 10 updates](waas-delivery-optimization-setup.md).
@ -34,7 +34,7 @@ In MDM, the same settings are under **.Vendor/MSFT/Policy/Config/DeliveryOptimiz
[//]: # (something about Intune UX--perhaps link to relevant Intune docs?)
### Summary of Delivery Optimization settings :
### Summary of Delivery Optimization settings:
| Group Policy setting | MDM setting | Supported from version |
| --- | --- | --- |
@ -87,7 +87,7 @@ Additional options available that control the impact Delivery Optimization has o
- [Maximum Download Bandwidth](#maximum-download-bandwidth) and [Percentage of Maximum Download Bandwidth](#percentage-of-maximum-download-bandwidth) control the download bandwidth used by Delivery Optimization.
- [Max Upload Bandwidth](#max-upload-bandwidth) controls the Delivery Optimization upload bandwidth usage.
- [Monthly Upload Data Cap](#monthly-upload-data-cap) controls the amount of data a client can upload to peers each month.
- [Minimum Background QoS](#minimum-background-qos) lets administrators guarantee a minimum download speed for Windows updates. This is achieved by adjusting the amount of data downloaded directly from Windows Update or WSUS servers, rather than other peers in the network.
- [Minimum Background QoS](#minimum-background-qos) lets administrators guarantee a minimum download speed for Windows updates. This setting adjusts the amount of data downloaded directly from Windows Update or WSUS servers, rather than other peers in the network.
- [Maximum Foreground Download Bandwidth](#maximum-foreground-download-bandwidth) specifies the **maximum foreground download bandwidth** that Delivery Optimization uses, across all concurrent download activities, as a percentage of available download bandwidth.
- [Maximum Background Download Bandwidth](#maximum-background-download-bandwidth) specifies the **maximum background download bandwidth** that Delivery Optimization uses, across all concurrent download activities, as a percentage of available download bandwidth.
- [Set Business Hours to Limit Background Download Bandwidth](#set-business-hours-to-limit-background-download-bandwidth) specifies the maximum background download bandwidth that Delivery Optimization uses during and outside business hours across all concurrent download activities as a percentage of available download bandwidth.
@ -110,7 +110,7 @@ Download mode dictates which download sources clients are allowed to use when do
| Download mode option | Functionality when set |
| --- | --- |
| HTTP Only (0) | This setting disables peer-to-peer caching but still allows Delivery Optimization to download content over HTTP from the download's original source. This mode uses additional metadata provided by the Delivery Optimization cloud services for a peerless reliable and efficient download experience. |
| LAN (1 – Default) | This default operating mode for Delivery Optimization enables peer sharing on the same network. The Delivery Optimization cloud service finds other clients that connect to the Internet using the same public IP as the target client. These clients then attempts to connect to other peers on the same network by using their private subnet IP.|
| LAN (1 – Default) | This default operating mode for Delivery Optimization enables peer sharing on the same network. The Delivery Optimization cloud service finds other clients that connect to the Internet using the same public IP as the target client. These clients then try to connect to other peers on the same network by using their private subnet IP.|
| 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. |
| 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, with no peer-to-peer caching. |
@ -121,7 +121,7 @@ Download mode dictates which download sources clients are allowed to use when do
### Group ID
By default, peer sharing on clients using the group download mode is limited to the same domain in Windows 10, version 1511, and the same domain and Active Directory Domain Services site in Windows 10, version 1607. By using the Group ID setting, you can optionally create a custom group that contains devices that should participate in Delivery Optimization but do not fall within those domain or Active Directory Domain Services site boundaries, including devices in another domain. Using Group ID, you can further restrict the default group (for example, you could create a sub-group representing an office building), or extend the group beyond the domain, allowing devices in multiple domains in your organization to be peers. This setting requires the custom group to be specified as a GUID on each device that participates in the custom group.
By default, peer sharing on clients using the group download mode is limited to the same domain in Windows 10, version 1511, and the same domain and Active Directory Domain Services site in Windows 10, version 1607. By using the Group ID setting, you can optionally create a custom group that contains devices that should participate in Delivery Optimization but do not fall within those domain or Active Directory Domain Services site boundaries, including devices in another domain. Using Group ID, you can further restrict the default group (for example, you could create a subgroup representing an office building), or extend the group beyond the domain, allowing devices in multiple domains in your organization to be peers. This setting requires the custom group to be specified as a GUID on each device that participates in the custom group.
[//]: # (Configuration Manager boundary group option; GroupID Source policy)
@ -144,11 +144,11 @@ When set, the Group ID is assigned automatically from the selected source. If yo
### Minimum RAM (inclusive) allowed to use Peer Caching
This setting specifies the minimum RAM size in GB required to use Peer Caching. For example if the minimum set is 1 GB, then devices with 1 GB or higher available RAM will be allowed to use Peer caching. The recommended values are 1 to 4 GB, and the default value is 4 GB.
This setting specifies the minimum RAM size in GB required to use Peer Caching. For example if the minimum set is 1 GB, then devices with 1 GB or higher available RAM will be allowed to use Peer caching. The recommended values are 1 to 4, and the default value is 4 GB.
### Minimum disk size allowed to use Peer Caching
This setting specifies the required minimum disk size (capacity in GB) for the device to use Peer Caching. The recommended values are 64 to 256 GB, and the default value is 32 GB.
This setting specifies the required minimum disk size (capacity in GB) for the device to use Peer Caching. The recommended values are 64 to 256, and the default value is 32 GB.
>[!NOTE]
>If the [Modify Cache Drive](#modify-cache-drive) policy is set, the disk size check will apply to the new working directory specified by this policy.
@ -156,7 +156,7 @@ This setting specifies the required minimum disk size (capacity in GB) for the d
### Max Cache Age
In environments configured for Delivery Optimization, you might want to set an expiration on cached updates and Windows application installation files. If so, this setting defines the maximum number of seconds each file can be held in the Delivery Optimization cache on each Windows 10 client device. The default Max Cache Age value is 259,200 seconds (3 days). Alternatively, organizations might choose to set this value to "0" which means "unlimited" to avoid peers re-downloading content. When "Unlimited" value is set, Delivery Optimization will hold the files in the cache longer and will clean up the cache as needed (for example when the cache size exceeded the maximum space allowed).
In environments configured for Delivery Optimization, you might want to set an expiration on cached updates and Windows application installation files. If so, this setting defines the maximum number of seconds each file can be held in the Delivery Optimization cache on each Windows 10 client device. The default Max Cache Age value is 259,200 seconds (three days). Alternatively, organizations might choose to set this value to "0" which means "unlimited" to avoid peers re-downloading content. When "Unlimited" value is set, Delivery Optimization will hold the files in the cache longer and will clean up the cache as needed (for example when the cache size exceeded the maximum space allowed).
### Max Cache Size
@ -168,19 +168,19 @@ This setting specifies the maximum number of gigabytes the Delivery Optimization
### Minimum Peer Caching Content File Size
This setting specifies the minimum content file size in MB enabled to use Peer Caching. The recommended values are from 1 to 100000 MB.
This setting specifies the minimum content file size in MB enabled to use Peer Caching. The recommended values are from 1 to 100000.
### Maximum Download Bandwidth
This setting specifies the maximum download bandwidth that can be used across all concurrent Delivery Optimization downloads in kilobytes per second (KB/s). A default value of 0 means that Delivery Optimization will dynamically adjust and optimize the maximum bandwidth used.
This setting specifies the maximum download bandwidth that can be used across all concurrent Delivery Optimization downloads in kilobytes per second (KB/s). A default value of "0" means that Delivery Optimization will dynamically adjust and optimize the maximum bandwidth used.
### Maximum Foreground Download Bandwidth
Starting in Windows 10, version 1803, specifies the maximum foreground download bandwidth that Delivery Optimization uses across all concurrent download activities as a percentage of available download bandwidth. The default value of 0 means that Delivery Optimization dynamically adjusts to use the available bandwidth for foreground downloads. However, downloads from LAN peers are not throttled even when this policy is set.
Starting in Windows 10, version 1803, specifies the maximum foreground download bandwidth that Delivery Optimization uses across all concurrent download activities as a percentage of available download bandwidth. The default value of "0" means that Delivery Optimization dynamically adjusts to use the available bandwidth for foreground downloads. However, downloads from LAN peers are not throttled even when this policy is set.
### Maximum Background Download Bandwidth
Starting in Windows 10, version 1803, specifies the maximum background download bandwidth that Delivery Optimization uses across all concurrent download activities as a percentage of available download bandwidth. The default value of 0 means that Delivery Optimization dynamically adjusts to use the available bandwidth for foreground downloads. However, downloads from LAN peers are not throttled even when this policy is set.
Starting in Windows 10, version 1803, specifies the maximum background download bandwidth that Delivery Optimization uses across all concurrent download activities as a percentage of available download bandwidth. The default value of "0" means that Delivery Optimization dynamically adjusts to use the available bandwidth for foreground downloads. However, downloads from LAN peers are not throttled even when this policy is set.
### Percentage of Maximum Download Bandwidth
@ -188,7 +188,7 @@ This setting specifies the maximum download bandwidth that Delivery Optimization
### Max Upload Bandwidth
This setting allows you to limit the amount of upload bandwidth individual clients can use for Delivery Optimization. Consider this setting when clients are providing content to requesting peers on the network. This option is set in kilobytes per second (KB/s). The default setting is 0, or "unlimited" which means Delivery Optimization dynamically optimizes for minimal usage of upload bandwidth; however it does not cap the upload bandwidth rate at a set rate.
This setting allows you to limit the number of upload bandwidth individual clients can use for Delivery Optimization. Consider this setting when clients are providing content to requesting peers on the network. This option is set in kilobytes per second (KB/s). The default setting is "0", or "unlimited" which means Delivery Optimization dynamically optimizes for minimal usage of upload bandwidth; however it does not cap the upload bandwidth rate at a set rate.
### Set Business Hours to Limit Background Download Bandwidth
Starting in Windows 10, version 1803, specifies the maximum background download bandwidth that Delivery Optimization uses during and outside business hours across all concurrent download activities as a percentage of available download bandwidth.
@ -198,7 +198,7 @@ Starting in Windows 10, version 1803, specifies the maximum foreground download
### Select a method to restrict peer selection
Starting in Windows 10, version 1803, set this policy to restrict peer selection via selected option.
Currently the only available option is **1 = Subnet mask** This option (Subnet mask) applies to both Download Modes LAN (1) and Group (2).
Currently the only available option is **1 = Subnet mask**. The subnet mask option applies to both Download Modes LAN (1) and Group (2).
### Delay background download from http (in secs)
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.
@ -214,19 +214,19 @@ Starting in Windows 10, version 1903, set this policy to delay the fallback from
### Minimum Background QoS
This value specifies the minimum download speed guarantee that a client attempts to achieve and will fulfill by downloading more kilobytes from Windows Update servers or WSUS. Simply put, the lower this value is, the more content will be sourced using peers on the network rather than Windows Update. The higher this value, the more content is received from Windows Update servers or WSUS, versus peers on the local network.
This value specifies the minimum download speed guarantee that a client attempts to achieve and will fulfill by downloading more kilobytes from Windows Update servers or WSUS. The lower this value is, the more content will be sourced using peers on the network rather than Windows Update. The higher this value, the more content is received from Windows Update servers or WSUS, versus peers on the local network.
### Modify Cache Drive
This setting allows for an alternate Delivery Optimization cache location on the clients. By default, the cache is stored on the operating system drive through the %SYSTEMDRIVE% environment variable. You can set the value to an environment variable (e.g., %SYSTEMDRIVE%), a drive letter (e.g., D:), or a folder path (e.g., D:\DOCache).
This setting allows for an alternate Delivery Optimization cache location on the clients. By default, the cache is stored on the operating system drive through the %SYSTEMDRIVE% environment variable. You can set the value to an environment variable (for example, %SYSTEMDRIVE%), a drive letter (for example, D:), or a folder path (for example, D:\DOCache).
### Monthly Upload Data Cap
This setting specifies the total amount of data in gigabytes that a Delivery Optimization client can upload to Internet peers per month. A value of 0 means that an unlimited amount of data can be uploaded. The default value for this setting is 20 GB.
This setting specifies the total amount of data in gigabytes that a Delivery Optimization client can upload to Internet peers per month. A value of "0" means that an unlimited amount of data can be uploaded. The default value for this setting is 20 GB.
### Enable Peer Caching while the device connects via VPN
This setting determines whether a device will be allowed to participate in Peer Caching while connected to VPN. Specify "true" to allow the device to participate in Peer Caching while connected via VPN to the domain network. This means the device can download from or upload to other domain network devices, either on VPN or on the corporate domain network.
This setting determines whether a device will be allowed to participate in Peer Caching while connected to VPN. Specify "true" to allow the device to participate in Peer Caching while connected via VPN to the domain network. The device can download from or upload to other domain network devices, either on VPN or on the corporate domain network.
### Allow uploads while the device is on battery while under set Battery level
@ -238,7 +238,7 @@ The device can download from peers while on battery regardless of this policy.
### Cache Server Hostname
Set this policy to to designate one or more Microsoft Connected Cache servers to be used by Delivery Optimization. You can set one or more FQDNs or IP Addresses that are comma separated, for example: myhost.somerandomhost.com,myhost2.somrandomhost.com,10.10.1.7.
Set this policy to designate one or more Microsoft Connected Cache servers to be used by Delivery Optimization. You can set one or more FQDNs or IP Addresses that are comma separated, for example: myhost.somerandomhost.com,myhost2.somrandomhost.com,10.10.1.7.
### Cache Server Hostname Source

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windows/deployment/update/waas-delivery-optimization.md
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@ -23,9 +23,9 @@ ms.custom: seo-marvel-apr2020
- Windows 10
> **Looking for consumer information?** See [Windows Update: FAQ](https://support.microsoft.com/help/12373/windows-update-faq)
> **Looking for Group Policy objects?** See [Delivery Optimization reference](waas-delivery-optimization-reference.md) or the master spreadsheet available at the [Download Center](https://www.microsoft.com/download/details.aspx?id=102158).
Windows updates, upgrades, and applications can contain packages with very large files. Downloading and distributing updates can consume quite a bit of network resources on the devices receiving them. You can use Delivery Optimization to reduce bandwidth consumption by sharing the work of downloading these packages among multiple devices in your deployment. Delivery Optimization can accomplish this because it is a self-organizing distributed cache that allows clients to download those packages from alternate sources (such as other peers on the network) in addition to the traditional Internet-based servers. You can use Delivery Optimization in conjunction with Windows Update, Windows Server Update Services (WSUS), Windows Update for Business, or Microsoft Endpoint Manager (when installation of Express Updates is enabled).
Windows updates, upgrades, and applications can contain packages with very large files. Downloading and distributing updates can consume quite a bit of network resources on the devices receiving them. You can use Delivery Optimization to reduce bandwidth consumption by sharing the work of downloading these packages among multiple devices in your deployment. Delivery Optimization is a self-organizing distributed cache that allows clients to download those packages from alternate sources (such as other peers on the network) in addition to the traditional Internet-based servers. You can use Delivery Optimization with Windows Update, Windows Server Update Services (WSUS), Windows Update for Business, or Microsoft Endpoint Manager (when installation of Express Updates is enabled).
Delivery Optimization is a cloud-managed solution. Access to the Delivery Optimization cloud services is a requirement. This means that in order to use the peer-to-peer functionality of Delivery Optimization, devices must have access to the internet.
@ -65,7 +65,7 @@ For information about setting up Delivery Optimization, including tips for the b
- Office installs and updates
- Xbox game pass games
- MSIX apps (HTTP downloads only)
- Edge browser installs and updates
- Microsoft Edge browser installations and updates
- [Dynamic updates](https://techcommunity.microsoft.com/t5/windows-it-pro-blog/the-benefits-of-windows-10-dynamic-update/ba-p/467847)
## Requirements
@ -159,14 +159,14 @@ For the payloads (optional):
**Does Delivery Optimization use multicast?**: 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.
**How does Delivery Optimization deal with congestion on the router from peer-to-peer activity on the LAN?**: Starting in Windows 10, version 1903, Delivery Optimization uses LEDBAT to relieve such congestion. For more details see this post on the [Networking Blog](https://techcommunity.microsoft.com/t5/Networking-Blog/Windows-Transport-converges-on-two-Congestion-Providers-Cubic/ba-p/339819).
**How does Delivery Optimization deal with congestion on the router from peer-to-peer activity on the LAN?**: Starting in Windows 10, version 1903, Delivery Optimization uses LEDBAT to relieve such congestion. For more details, see this post on the [Networking Blog](https://techcommunity.microsoft.com/t5/Networking-Blog/Windows-Transport-converges-on-two-Congestion-Providers-Cubic/ba-p/339819).
**How does Delivery Optimization handle VPNs?**
Delivery Optimization attempts to identify VPNs by checking the network adapter type and details and will treat the connection 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](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 policy to 0 for that boundary group to ensure that there will be no peer-to-peer activity over the VPN. When the device is not connected via VPN, it can still leverage 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 policy to 0 for that boundary group to ensure that there will be no peer-to-peer activity over the VPN. When the device is not 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:
@ -202,34 +202,34 @@ If you don't see any bytes coming from peers the cause might be one of the follo
### Clients aren't able to reach the Delivery Optimization cloud services.
If you suspect this is the problem, try these steps:
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 DownloadMode setting. For peering to work, DownloadMode should be 1, 2, or 3.
3. If **DownloadMode** is 99 it could indicate your device is unable to reach the Delivery Optimization cloud services. Ensure that the Delivery Optimization hostnames are allowed access: most importantly **\*.do.dsp.mp.microsoft.com**.
3. If **DownloadMode** 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**.
### The cloud service doesn't see other peers on the network.
If you suspect this is the problem, try these steps:
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 **DownloadMode** 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 you have **DownloadMode** = 1, ensure that both devices are using the same public IP address to reach the internet. To do this, open a browser Windows and search for “what is my IP”. You can **DownloadMode 2** (Group) and a custom GroupID (Guid) to fix this if the devices aren’t reporting the same public IP address.
4. If the number of peers is zero and you have **DownloadMode** = 1, ensure that both devices are using the same public IP address to reach the internet. Open a browser Windows and search for “what is my IP”. You can **DownloadMode 2** (Group) and a custom GroupID (Guid) to fix this if the devices aren’t reporting the same public IP address.
### Clients aren't able to connect to peers offered by the cloud service
If you suspect this is the problem, try a Telnet test between two devices on the network to ensure they can connect using port 7680. To do this, follow these steps:
Try a Telnet test between two devices on the network to ensure they can connect using port 7680. Follow these steps:
1. Install Telnet by running **dism /online /Enable-Feature /FeatureName:TelnetClient** from an elevated command prompt.
2. Run the test. For example, if you are on device with IP 192.168.8.12 and you are trying to test the connection to 192.168.9.17 run **telnet 192.168.9.17 7680** (the syntax is *telnet [destination IP] [port]*. You will either see a connection error or a blinking cursor like this /_. The blinking cursor means success.
1. Install Telnet by running `dism /online /Enable-Feature /FeatureName:TelnetClient` from an elevated command prompt.
2. Run the test. For example, if you are on device with IP 192.168.8.12 and you are trying to test the connection to 192.168.9.17 run `telnet 192.168.9.17 7680` (the syntax is *telnet [destination IP] [port]*. You will either see a connection error or a blinking cursor like this /_. The blinking cursor means success.
### None of the computers on the network are getting updates from peers
If you suspect this is the problem, check Delivery Optimization settings that could limit participation in peer caching. Check whether the following settings in assigned group policies, local group policies, are MDM policies are too restrictive:
Check Delivery Optimization settings that could limit participation in peer caching. Check whether the following settings in assigned group policies, local group policies, or MDM policies are too restrictive:
- Minimum RAM (inclusive) allowed to use peer caching
- Minimum disk size allowed to use peer caching
@ -260,4 +260,4 @@ If you suspect this is the problem, check Delivery Optimization settings that co
- [Walkthrough: use Intune to configure Windows Update for Business](/intune/windows-update-for-business-configure)
- [Deploy Windows 10 updates using Windows Server Update Services](waas-manage-updates-wsus.md)
- [Deploy Windows 10 updates using Microsoft Endpoint Configuration Manager](/mem/configmgr/osd/deploy-use/manage-windows-as-a-service)
- [Manage device restarts after updates](waas-restart.md)
- [Manage device restarts after updates](waas-restart.md)