Over on Steve Rachui’s Manageability blog he has a great write-up on how to minimize your network utilization by enabling Multicast for your OSD image deployments. If you’re deploying to a lot of machines at the same time then you’ll definitely want to take a look at this:
Multicasting is a new feature of R2 in SCCM and is a welcome addition to the OSD feature. Multicast allows for image deployment with a much reduced network load. If, for example, you are deploying a 500 MB image to 20 workstations that have just arrived from the OEM then with normal OSD imaging you would see network traffic equal to around 5 Gig! Using multicasting would result in a significant decrease in network utilization. Depending on the configuration, as little as about 500 MB of traffic required to deploy to a single machine!
How do you setup multicast? Let’s walk through the configuration that is required step by step.
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J.C. Hornbeck | Manageability Knowledge Engineer