
Explanation/Reference:
Explanation:
Create a Site Link
To create a site link
Open Active Directory Sites and Services. To open Active Directory Sites and Services, click Start,

click Administrative Tools, and then click Active Directory Sites and Services.
To open Active Directory Sites and Services in Windows Server® 2012, click Start, type dssite.msc.
In the console tree, right-click the intersite transport protocol that you want the site link to use.

Use the IP intersite transport unless your network has remote sites where network connectivity is intermittent or end-to-end IP connectivity is not available. Simple Mail Transfer Protocol (SMTP) replication has restrictions that do not apply to IP replication.

Reference: Create a Site Link
p://technet.microsoft.com/en-us/library/cc731294.aspx