?
Solved

AD Site Topology Design [Inter Site Link Metric, Cost value, replication schedule]

Posted on 2014-02-13
1
Medium Priority
?
886 Views
Last Modified: 2014-03-03
Hello,

I'm in charge of auditing our AD Site topology  (number of Site link, cost value, Replication schedule and Site link Bridge)

The thing is that i don't know what cost i should advise. I know the lower the cost value the more prioritize it will be)

Our environment is one Forest
Root Domain
Child domain is region domain (4 domains => One domain per region)


We have on our topology
1- Strategic sites where one of each site (Region big site) contain more than 10 RWDCs; and should replicate with one another. Good WAN => what site link Cost Value i should advise  ?

2- Hub Site (Region sites smaller than big sites) contain 2 RWDCs that should replicate with strategic sites  Good WAN => what site link Cost Value i should advise  ?

3- Remote site (Region sites smaller than Hub sites) contain 1 RODC or RWDC that should replicate with Hub sites. Poor Network WAN =>  what site link Cost Value i should advise  ?

NB: I know the numbers don't really matter, but i want is a cost value strategy that make sens, so that users from smaller Remote site don't authenticate on DCs in strategic site.

I need advise or related Document i can rely on.

Thank You
0
Comment
Question by:AMATERASOU
1 Comment
 
LVL 37

Accepted Solution

by:
Jamie McKillop earned 1500 total points
ID: 39857228
Hello,

You site link costs have nothing to do with what DCs your clients authenticate against. Your client will try to authenticate against all DCs in the same site then start randomly trying DCs in other site if none of the local DCs respond. The site link costs only control replication. In your case, I would put all your site link costs at 100. You only create links of different costs when you want to have backup links that are only used if the primary link goes down. For example, you create a link between A and B at 100, B to C at 100 and A to C at 200. In that case B would always replicate to A and C. A would only replicate with C if B is down.

-JJ
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Compliance and data security require steps be taken to prevent unauthorized users from copying data.  Here's one method to prevent data theft via USB drives (and writable optical media).
Transferring FSMO roles is done when an admin wants to split roles between certain Domain Controllers or the Domain Controller holding the Roles has been forcefully demoted using dcpromo / forceremoval
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …
Suggested Courses

850 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question