Titlebook: Data Communications and Network Technologies; Huawei Technologies Co., Ltd. Textbook‘‘‘‘‘‘‘‘ 2023 Posts & Telecom Press 2023 Open Access.C

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WAN Fundamentals,in different geographical areas. The network of each branch office is considered as a Local Area Network (LAN), and communication between headquarters and branch offices needs to span a certain geographical area. Therefore, enterprises need to connect these geographically dispersed branch offices th