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Update waas-delivery-optimization-reference.md

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Update accuracy for cache server fallback behavior.
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Carmen Forsmann 2024-02-14 10:43:13 -07:00 committed by GitHub
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windows/deployment/do/waas-delivery-optimization-reference.md
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@ -59,8 +59,8 @@ In MDM, the same settings are under **.Vendor/MSFT/Policy/Config/DeliveryOptimiz
| [Set hours to limit foreground download bandwidth](#set-business-hours-to-limit-foreground-download-bandwidth) |DOSetHoursToLimitForegroundDownloadBandwidth | 1803 | Default isn't set. |
| [Delay background download from HTTP (in secs)](#delay-background-download-from-http-in-secs) | DODelayBackgroundDownloadFromHttp | 1803 | Default isn't set. For peering, use this policy to delay the fallback to the HTTP source. [Learn more](#policies-to-prioritize-the-use-of-peer-to-peer-and-cache-server-sources) about the different delay options. |
| [Delay foreground download from HTTP (in secs)](#delay-foreground-download-from-http-in-secs) | DODelayForegroundDownloadFromHttp | 1803 | Default isn't set. For peering, use this policy to delay the fallback to the HTTP source. [Learn more](#policies-to-prioritize-the-use-of-peer-to-peer-and-cache-server-sources) about the different delay options.|
| [Delay foreground download Cache Server fallback (in secs)](#delay-foreground-download-cache-server-fallback-in-secs) | DelayCacheServerFallbackForeground | 1903 | Default isn't set. For Microsoft Connected Cache content, use this policy to delay the fallback to the HTTP source. [Learn more](#policies-to-prioritize-the-use-of-peer-to-peer-and-cache-server-sources) about the different delay options. |
| [Delay background download Cache Server fallback (in secs)](#delay-background-download-cache-server-fallback-in-secs) | DelayCacheServerFallbackBackground | 1903 | Default isn't set. For Microsoft Connected Cache content, use this policy to delay the fallback to the HTTP source. [Learn more](#policies-to-prioritize-the-use-of-peer-to-peer-and-cache-server-sources) about the different delay options.|
| [Delay foreground download Cache Server fallback (in secs)](#delay-foreground-download-cache-server-fallback-in-secs) | DelayCacheServerFallbackForeground | 1903 | Default isn't set. For Microsoft Connected Cache content, use this policy to delay the fallback to the HTTP source. [Learn more](#policies-to-prioritize-the-use-of-peer-to-peer-and-cache-server-sources) about the different delay options. |
| [Cache Server Hostname](#cache-server-hostname) | DOCacheHost | 1809 | No value is set as default. |
| [Cache Server Hostname Source](#cache-server-hostname-source) | DOCacheHostSource | 2004 | No value is set as default. |
| [Maximum download bandwidth](#maximum-download-bandwidth) | DOMaxDownloadBandwidth | 1607 (deprecated in Windows 10, version 2004); use [Maximum background download bandwidth (in KB/s)](#maximum-background-download-bandwidth-in-kbs) or [Maximum foreground download bandwidth (in KB/s)](#maximum-foreground-download-bandwidth-in-kbs) instead)| Default is '0' which will dynamically adjust. |
@ -335,7 +335,7 @@ The device can download from peers while on battery regardless of this policy.
MDM Setting: **DOCacheHost**
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.somerandomhost.com,10.10.1.7. **By default, this policy has no value.** Delivery Optimization client will connect to the listed Microsoft Connected Cache servers in the order as they are listed. When multiple FQDNs or IP Addresses are listed, the Microsoft Connected Cache server priority order is determined based on the order as they are listed. If the first server fails, it will move the next one. When the last server fails, it will fallback to the CDN.
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.somerandomhost.com,10.10.1.7. **By default, this policy has no value.** Delivery Optimization client will connect to the listed Microsoft Connected Cache servers in the order as they are listed. When multiple FQDNs or IP Addresses are listed. Fallback to the CDN occurs immediately after the first failure in downloading from a cache server, unless the [DelayCacheServerFallbackBackground](#delay-background-download-cache-server-fallback-in-secs) or [DelayCacheServerFallbackForeground}(#delay-foreground-download-cache-server-fallback-in-secs) policies are set. When these delay policies are set, the fallback occurs only after the configured delay time and the client continues to attempt connecting to the cache servers in round robin order before the delay time expires.
>[!IMPORTANT]
> Any value will signify that the policy is set. For example, an empty string ("") isn't considered empty.