Creating Subnets

By Author: Mike Jones
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Computers on TCP/IP networks are assigned to sites based on their location in a subnet or a set of Microsoft exam 70-297 subnets. Subnet information is used to find a domain controller in the same site as the computer that is authenticated during the logon process, and is used during Active Directory replication to determine the best routes between domain controllers. Subnets must be defined in Active Directory to ensure accurate and efficient directory replication and resource usage. Each site must have at least one subnet, but a subnet can be assigned to only one site.
When you create a subnet, you must specify the subnet address and mask. Then you must assign the subnet to a specific site. A subnet name is automatically assigned based on the subnet address you entered and the number of subnet mask bits you specified in the subnet mask. For example, if you specify a subnet address of 192.168.16.0 and a subnet mask of 255.255.255.0, the subnet name assigned is 192.168.16.0/24.
To create a subnet, complete the following steps:
1.Click Start, point to Administrative Tools, ...
... and then click Active Directory Sites And Services.
2.Double-click the Sites folder.
3.Right-click the Subnets folder, and then click New Subnet.
In the New Object-Subnet dialog box, shown in 70-297 practice test, type the subnet address in the Address box. In the Mask box, type the subnet mask that describes
the range of addresses included in this site's subnet. Choose a site to associate this subnet, and then click OK.
If an entire network consists of fast, reliable links, the network can be considered a single site. Similarly, if bandwidth between networks is plentiful and it is acceptable for a client on one network to communicate with a server on another network, the networks can together be considered a single site.
To create a site, complete the following steps:
1.Click Start, point to Administrative Tools, and then click Active Directory Sites And Services.
2.Right-click the Sites container, and then click New Site. In the New Object-Site dialog box, shown in Figure 5-4, type the name of the new site in the Name box. Assign a site link to the site by selecting a site link in the Link Name column, and then click OK.
Because site links are transitive by default, it is seldom necessary to create site link bridges. In other words, if site link transitivity is enabled, then manually creating a site link bridge is redundant and has no effect. However, if site link transitivity is disabled, you need to manually create a site link bridge if a transitive link is required free Microsoft certification exam papers to handle your organization's replication strategy.