Ver.CHAPTER 1. Access Point Controller System Overview© SAMSUNG Electronics Co., Ltd. page 33 of 4962600-00FK1RGA4 3.01.4.4 Configuration of Multiple Sites Consisting of Headquarterand BranchesThe W-EP wireless LAN network environment usually consists of one headquarter andseveral branches.In this case, there are two types of network configuration. Hierarchical type: A APC is installed in a branch as well as headquarter. Branch AP type: A APC is installed only in a headquarter and only a W-EP wirelessLAN AP is installed in a branch.In the hierarchical type, it is advantageous that each branch can use each different servicepolicy. However, the management in a headquarter is complex and many low-capacityAPCs must be installed, so the branch AP type is commonly used.The branch AP type has the same structure as a basic W-EP wireless LAN configuration.A single difference is that a W-EP wireless LAN AP installed in a branch is located at aremote place. The APC in a headquarter provides a wireless LAN service in theheadquarter building and also provides a wireless LAN service to a remote W-EP wirelessLAN AP installed in a branch. As the APC in a headquarter manages all the W-EP wirelessLAN APs using the same policy, it is easy to use and cost-effective.An example of service configuration diagram for the branch AP type is shown in the belowfigure.Figure 15. Example of W-EP Wireless LAN System Configuration for Multiple Sites consisting ofHeadquarter and BranchesPRIFirewallInternetBackboneswitchSBCPSTNIP-PBXMedia G/WAPCWIPSLocServerWEMAAAserverDHCPRouterBranchPoE switchW-EP APHQPoE switch Access switch PoE switch Access switchW-EP AP W-EP AP