?
Solved

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

Posted on 2014-02-13
1
Medium Priority
?
838 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
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

Office 365 Training for IT Pros

Learn how to provision tenants, synchronize on-premise Active Directory, implement Single Sign-On, customize Office deployment, and protect your organization with eDiscovery and DLP policies.  Only from Platform Scholar.

Question has a verified solution.

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

Uncontrolled local administrators groups within any organization pose a huge security risk. Because these groups are locally managed it becomes difficult to audit and maintain them.
This article provides a convenient collection of links to Microsoft provided Security Patches for operating systems that have reached their End of Life support cycle. Included operating systems covered by this article are Windows XP,  Windows Server…
This tutorial will walk an individual through the steps necessary to install and configure the Windows Server Backup Utility. Directly connect an external storage device such as a USB drive, or CD\DVD burner: If the device is a USB drive, ensure i…
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
Suggested Courses

777 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