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AD sites and services - subnets question

Hi Guys

Hopefully a quick question, how are AD sites and services used in real world scenarios, the way I imagined it you would have a site to site VPN and each site would have to have a different internal IP, e.g. site A = 192.168.1.x, site B = 192.168.2.x, is that correct or does it work on external IP's?

Thanks
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Corp_Jones
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Corp_Jones
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2 Solutions
 
mcsweenSr. Network AdministratorCommented:
Sites and Services work based on your Internal (LAN) addresses so you are correct in the above.

Setting costs on the site links based on the speed of the WAN connection will allow AD to generate it's replication topology and redirect users to the closest logon servers.  Higher cost = slower link speed.
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Corp_JonesAuthor Commented:
Thanks for the quick response, have you got any links for reference.

Also are there any logs or tools which can show the costs are actually working, it seems a bit like set it and forget it, not sure how you would know if its actually working if that makes sense.
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Mike KlineCommented:
You can use tools like repadmin  /showreps or  /showrepl  to monitor replication.  Dcdiag and event logs will also tell you if there are replication issues.

There are also "eyeball tests" (my term).  Create an object and make sure it replicates to the other DC in the remote site.

Thanks

Mike
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Corp_JonesAuthor Commented:
Thanks, have you got any links for ref on your first answer and then i'll close it off.
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mcsweenSr. Network AdministratorCommented:
The answer came from my head (I'm a MCSE) but below is some documentation on Sites and Services as well as some checklists and config guides.

http://technet.microsoft.com/en-us/library/cc730868.aspx



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Mike KlineCommented:
Also the AD team has a good blog entry, see the "status checking" section

http://blogs.technet.com/b/askds/archive/2009/07/01/getting-over-replmon.aspx

Thanks

Mike
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