http://blogs.technet.com/asksbs/archive/2008/03/28/troubleshooting-active-directory-replication.aspx[Today's post comes to us courtesy Lavinder Kumar.] Though uncommon, there are times when we see an SBS network with multiple domain controllers, placed in multiple sites. This is mainly done to reduce bandwidth consumption for intra-site LDAP queries.en-USCommunityServer 2.1 SP1 (Build: 61025.2)