Open Active Directory Sites and Services

Rename "Default-First-Site-Name" to "Beijing-Site"

Right click "Sites", and create new site "Shanghai-Site"

Right click "Sites", and create new site "Shenzhen-Site"

Right click "Subnets", and create 172.16.0.0/16 and associate to Beijing-Site

Right click "Subnets", and create 172.17.0.0/16 and associate to Shanghai-Site

Right click "Subnets", and create 172.18.0.0/16 and associate to Shenzhen-Site

Go to Sites->Inter-Site Transports-IP, rename "EFAULTIPSITELINK" to "Beijing-Shanghai", and make sure contain Beijing-Site and Shanghai-Site

Right click on "IP", select "New Site Link...", Name "Beijing-Shenzhen", and add Beijing-Site and Shenzhen-Site


By default, "Bridge all site links" is enabled

By default, it needs 180 minutes to sync data between sites (the minimum is 15 minutes)