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Interconnecting Cisco Network Devices, Part 2 (ICND2) by Steve McQuerry

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Chapter 8. Extending the Network into the WAN

<feature><title>This chapter includes the following sections:</title> </feature>

WANs are most often charge-for-service networks, providing the means for users to access resources across a wide geographic area. Some services are considered Layer 2 connections between your remote locations, typically provided by a telephone company (telco) over its WAN switches. Some of these technologies include a serial point-to-point (leased line) connection and Frame Relay connections.

Other connections leverage ...

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