Configuration Manager boundaries are locations on your network that contain devices that you want to manage. The boundary a device is on is equivalent to the Active Directory site, or network IP address that is identified by the Configuration Manager client that is installed on the device.
Let’s create a boundary In the Configuration Manager console, click Administration > Hierarchy Configuration > Boundaries
On the Home tab, in the Create group, click Create Boundary
On the General tab of the Create Boundary dialog box you can specific a Description to identify the boundary by a friendly name such as Boundary Accra.
Specify the network and subnet mask to have the subnet ID automatically specified.
Here I have Created the second Boundary named Boundary Kumasi
Create a boundary group Go to the Administration expand Hierarchy Configuration, and select the Boundary Groups node.
Go to the Administration expand Hierarchy Configuration, and select the Boundary Groups node. Right-click on Boundary Groups and choose Create Boundary Group.
In the Create Boundary Group dialog box, on the General tab, specify a Name for this boundary group and Select OK to save the new boundary group.
To add boundaries, select Add. In the Add Boundaries window,
Select the check box for one or more boundaries, and select OK.
Boundary group created successfully
Switch to the References tab in the boundary group Properties window. To enable this boundary group for use by clients for site assignment, select Use this boundary group for site assignment. Then select a site from the Assigned site dropdown list.
To associate available site system servers with this boundary group, select Add. The Add Site Systems window only lists servers that have supported site system roles. Select the check box for one or more servers, and select OK
To configure fallback behavior, switch to the Relationships tab in the boundary group Properties window. Select Add. In the Fallback Boundary Groups window, select the boundary group to configure.
Set a fallback time for the following site system roles:
Software update point
Select OK to save the configuration.