Initiating Replication
You can use several different methods to force replication. Microsoft Knowledge Base article 232072, “Initiating Replication Between Active Directory Direct Replication Partners”, discusses the fol?lowing four methods:
1.Using the Active Directory Sites and Services MMC snap-in (Dssite.msc)
2.Using Repadmin
3.Using Replmon
4.Using a script
All of these methods, except for using a script, are illustrated in the exercises and examples in this chapter, A sample script for initiating replication named Repli-cate.vbs can be found in the \70-294\Labs\Chapter05 folder on the Supplemental CD-ROM.
If you work for an organization that spans multiple time zones, you must consider this when configuring your site link schedule. Although the site link schedule interface displays the schedule based on local time, this information is stored in Coordinated Universal Time (UTC). This means that someone in another time zone looking at the same schedule will see different link availability. Ensure that when you schedule site link availability for two locations in different time zones, you take into account what is happening at both locations at the scheduled time.
Site Link Transitivity By default, all site links are transitive, which simply means that if sites A and B are linked and sites B and C are linked, then site A and site C are transitively linked. Site link transitivity is enabled or disabled by selecting the Bridge All Site Links check box in the Properties dialog box for either the IP or the SMTP intersite transport. By default, site link transitivity is enabled for each transport.
If you disable site link transitivity for a transport, all site links for that transport are affected and none of them are transitive. You must manually create site link bridges to provide transitive replication. The following are some reasons “why you might want to disable site link transitivity:
To have total control over replication traffic patterns
To avoid a particular replication path, such as a path that involves a firewall
If your IP network is not fully routed
Carefully consider the needs of your organization before disabling site link transitivity.
A site link bridge connects two or more site links in a transport where transitivity has been disabled in order to create a transitive and logical link between two sites that do not have an explicit site link. For example, in Figure 5-1, site link Ber-Lu connects the Bern and Lucerne sites. Site link Lu-Zur connects the Lucerne and Zurich sites. Site link bridge connects site links Ber-Lu and Lu-Zur.
