Cisco Networking Academy Connecting Networks Companion Guide: Point- to- Point Connections > Objectives. All rights reserved. Serial interfaces are used to communicate with other local Cisco Routers or to establish a connection to the WAN through a CSU/DSU device. The required.What Is an Internetwork? An internetwork is a collection of individual networks, connected by intermediate networking devices, that functions as a single large network. T1 or E1 Interface Troubleshooting. To troubleshoot the T1 or E1 interface, perform the following steps: SUMMARY STEPS. This chapter covers the terms, technology, and protocols used in serial connections, introducing the High-Level Data Link Control (HDLC) and Point-to-Point Protocol. This chapter describes configuring the serial interface for Cisco 800M Series ISRs in the following sections: Configuring the Serial Interface.
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August 2017
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