A Windows Client and Site Link Costs

I was thinking that Windows client systems (XP, Vista, 7, 8) respects link costs. Let's use standard Microsoft diagram.

If PC within Site B with default settings lose connection to every site B Domain Controller, it will not contact DC within Site A, it will try to use as a logon server random DC from the domain. And it could be Site D for example. In the real world scenario PC from New York will use DC from Sydney instead of WashingtonJ.

To enable expected behavior we have to set followed policy:

Now our PC will use DC with the lowest link cost – Washington.

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