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Module 8: Using Active Directory Sites to Manage Replication Traffic. Overview. Active Directory Sites Implementing Sites Planning for Sites. Active Directory Sites. The Role of Sites in Active Directory Replication How Active Directory Uses Site Information Intra-Site Replication

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Module 8: Using Active Directory Sites to Manage Replication Traffic


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    Presentation Transcript
    1. Module 8: Using Active Directory Sites to Manage Replication Traffic

    2. Overview • Active Directory Sites • Implementing Sites • Planning for Sites

    3. Active Directory Sites • The Role of Sites in Active Directory Replication • How Active Directory Uses Site Information • Intra-Site Replication • Intra-Site Replication Topology • Inter-Site Replication • Inter-Site Replication Topology

    4. The Role of Sites in Active Directory Replication • Sites Control • Workstation logon traffic and replication traffic • Distributed file system (Dfs) topology • Sites Can Contain • All domain controllers in a single domain • Some of the domain controllers in a single domain • Domain controllers from different domains • Sites Consist of Server Objects • First Site Is Set Up Automatically

    5. How Active Directory Uses Site Information • The KCC Generates a Replication Topology • Client Computers Use Site Information to Find Nearby Domain Controllers for Logon Operations • Helps Find the Closest Computer That Offers a Network or a Third-party Service

    6. Intra-Site Replication Domain Controller Domain Controller Domain Controller • Replication BetweenDomain Controllersin the Same Site • Avoids UnnecessaryTraffic Though ChangeNotification Mechanism • Security-Sensitive Changes Immediately Replicated Intra-Site Replication Domain Controller Domain Controller

    7. Intra-Site Replication Topology Domain Controller Domain Controller • Intra-Site Replication Topology Can Be Automatically Generated • A Single Replication Topology Can Handle All Replication Traffic Domain Controller Intra-Site Replication Domain Controller Domain Controller

    8. Inter-Site Replication Domain Controller Domain Controller Domain Controller Inter-Site Replication Site 1 Domain Controller Domain Controller Domain Controller Domain Controller Domain Controller Site 2 Domain Controller Domain Controller

    9. Inter-Site Replication Topology • Create Site Links to Connect Domain Controllers in Different Sites • Bridgeheads Link Replicas That Span Multiple Sites

    10. Implementing Sites • Using Active Directory Sites and Services • Understanding Site Links • Site Link Costs • Creating Site Link Bridges

    11. Using Active Directory Sites and Services • Create Sites • Create Subnets • Group Subnets Within Sites • Move Servers Into Sites • Create Site Links • Create Site Link Bridges

    12. Understanding Site Links • Site Link Components • Transport • Transport • Cost • Schedule • Connected by Different Network Technologies • Site Links Use a Specific Inter-site Transport

    13. Site Link Costs • Represents the Priority of Replication Traffic Between the Sites Identified in the Site Link • Higher Cost Numbers Represent Lower Priority Replication Paths • Control Topology by Setting the Costs on Site Links • Control the Replication Frequency by Setting the Number of Minutes Between Replication Attempts • Control Link Availability Using the Schedule onSite Links

    14. Creating Site Link Bridges Site Link Bridge XYZ Site X Site Y Site Link XY Site Z Site Link YZ

    15. Planning for Sites • Placing Domain Controllers and Global Catalog Servers • Determining Connectivity and Available Bandwidth • Planning Sites to Control Workstation Logon Traffic • Planning Sites to Control Replication Traffic • Controlling Both Logon and Replication Traffic • Planning Single Master Operations Server Placement

    16. Placing Domain Controllers and Global Catalog Servers • Placement of Domain Controllers • Should respond to client requests quickly • Capable of supporting the number of objects • Domain controller in each site that contains users or computers of that domain • Placement of Global Catalog Servers • Must have the capacity to hold partial replicas of all domain objects • Place global catalog server at small sites

    17. Determining Connectivity and Available Bandwidth • Only Subnets That Are Considered Fast, Inexpensive, and Reliable Should Be Combined into a Site • Consider Controlling Replication Traffic and Logon Requests • An Important Consideration Is Available Bandwidth

    18. Planning Sites to Control Workstation Logon Traffic • Use Sites to Control Which Domain Controller Each Workstation Should Use to Log On • Design Sites That Mirror the Organization’s Topology of Fast Network Connections • Design Sites So That Only Specific Domain Controllers Are in the Same Site As the Workstation • Multiple Sites at a Single Physical Location

    19. Planning Sites to Control Replication Traffic • Use Sites to Control When and How Replication Occurs • Consider How Much Replication Traffic Will Be on the Network • The Amount of Expected Changes in a Directory Will Have an Affect on the Amount of Data to Be Replicated

    20. Controlling Both Logon and Replication Traffic • Create a Site Structure That Provides Balance • Carefully Examine Each of the Network Links Between Locations • Determine Whether the Link Should Be Utilized for Logon Traffic or Replication Traffic

    21. Planning Single Master Operations Server Placement • Designate a Standby Operations Master • Separate RID and PDC Emulator Operations Masters in Large Domains • Separate Infrastructure Operations Master from Global Catalog Server • Plan Per Forest Roles After Per Domain Roles • Perform Role Transfer • Respond to an FSMO Failure

    22. Lab A: Creating a Site

    23. Lab B: Configuring SMTP Replication

    24. Lab C: Planning a Site Structure

    25. Review • Active Directory Sites • Implementing Sites • Planning for Sites