June 2017
Beginner to intermediate
742 pages
18h 29m
English
Content preview from Mastering Active Directory
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The site cost
The site link cost defines the nearest resources, if the on-site resource is not available. In a network topology, the site link is mainly based on the link's bandwidth. But here, a site link is decided based on the bandwidth, latency, and reliability. For example, let's assume site A and site B are connected via a 100 Mbps link. Site A and site C are connected via the 512 Kbps link. If we only consider the bandwidth, site A will prefer site B as the closest site. But this link had a few failures last month and 512 Kbps is more reliable. By changing the site link cost, I can force site A to use site C as the preferred closest resource site. In the following example, we have three sites, and each site has two site links to connect ...