Leased lines are a frequently used type of WAN access, and they are generally priced based on the bandwidth required and the distance between the two connected points. Companies pay for a continuous connection between two remote sites, and the line is continuously active and available. This is because the lines are leased from a carrier (usually a telephone company) and are dedicated for use by the company leasing the lines. Figure 3-1 Serial Point-to-Point CommunicationsĪ LAN-to-WAN point-to-point connection is also referred to as a serial connection or leased line connection.
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