I planted a cliffhanger in my post managing Windows MDM policies with JC cmd about Windows Update Delivery Optimisation, figure it's time to unpack it - before the Xmas! 😀
Let's dive into it.
I got a few customers (especially the ones with large flee of windows devices) ask:
Is it possible to have some kinda cache "server" on their local network to distribute the update files on local network, to save the precious internet bandwidth? In combination of using JC's patch mgmt policy.
I hate to say "no" to this validate ask, so I spent some time on Delivery Optimisation to make it work with the policy.
Quoting from the MSFT link:
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. 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 cloud-managed solution 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 don't need extra subscription with MSFT in this case. 😉
There are a few things to consider before we go straight to the configurations, which is relatively straightforward.
Setting it up
# Ref Test Case: #https://learn.microsoft.com/en-us/windows/deployment/do/delivery-optimization-test $groupGuid = "fde820f5-362c-4eb3-b7fa-0b961b40ff32" #Generate by ([guid]::NewGuid()).guid for a GUID based Group ID $session.DODownloadMode = 2 $session.DOGroupID = $groupGuid $session.DOAbsoluteMaxCacheSize = 10000 $session.DOMonthlyUploadDataCap = 10000
$session.DODownloadMode = 2 $session.DOGroupIDSource = 3 #DHCP Option ID $session.DOAbsoluteMaxCacheSize = 10000 $session.DOMonthlyUploadDataCap = 10000
Get-DeliveryOptimizationStatus | select DownloadDuration,filesize,status,NumPeers,DownloadMode,SourceURL | ft DownloadDuration FileSize Status NumPeers DownloadMode SourceURL ---------------- -------- ------ -------- ------------ --------- 00:00:00.3240000 473943581 Complete 0 Group http://1d.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/6757f91d-e0bf-4b13-9f9... 00:00:01.5510000 61115755 Caching 0 Group http://tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/9b429a11-819c-4fc3-8a54-e... 00:01:08.7530000 132024555 Complete 1 Group http://tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/fe435c57-1c78-4b7e-bd8b-1... 00:00:05.3060000 101532152 Caching 0 Group http://2.au.download.windowsupdate.com/d/msdownload/update/software/defu/2022/12/am_base_8ba... 00:02:08.9170000 238620000 Complete 1 Group http://tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/9f1ffde8-d38e-4d0d-93b6-a... 00:01:03.0940000 72536066 Complete 1 Group http://au.download.windowsupdate.com/d/msdownload/update/software/secu/2022/12/windows11.0-k... 00:00:00.8680000 64253505 Caching 0 Group http://1d.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/d37a3355-d18c-4dc6-86a... 00:00:01.6760000 60801000 Caching 0 Group http://1d.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/ff4d82a1-4a4a-4475-bbb... 00:00:01.4670000 132922035 Complete 0 Group http://1d.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/64fd9c37-a52a-424a-870...
That's it! 😃
(p.s. I only managed to test the whole thing in a tiny env with 2 Windows instances, please share your thoughts here if you are planning to implement this in a large env).