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Establishing Serial Point-To-Point Connections

Establishing Serial Point-To-Point Connections. Introducing Wide-Area Networks. Outline. Overview WAN Overview WAN Connection Types WAN Components WAN Cabling Layer 2 Encapsulation Protocols Summary. WAN Overview. WANs connect remote sites.

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Establishing Serial Point-To-Point Connections

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  1. Establishing Serial Point-To-Point Connections Introducing Wide-Area Networks

  2. Outline • Overview • WAN Overview • WAN Connection Types • WAN Components • WAN Cabling • Layer 2 Encapsulation Protocols • Summary

  3. WAN Overview • WANs connect remote sites. • Connection requirements vary depending on user requirements, cost, and availability.

  4. WAN Connection Types: Layer 1

  5. Interfacing BetweenWAN Service Providers • Provider assigns connection parameters to subscriber

  6. Serial Point-to-Point Connections

  7. Typical WAN Encapsulation Protocols: Layer 2

  8. Summary • A WAN makes data connections across a broad geographic area so that information can be exchanged between distant sites. • WAN connection types include leased line, circuit-switched, and packet-switched. • WAN components that the provider assigns to your organization include CPE, demarcation, local loop, CO switch, and toll network. • Cisco routers support the EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA/TIA-530 standards for serial connections. • To encapsulate data for crossing a WAN link, a variety of Layer 2 protocols can be used, including HDLC, PPP, SLIP, X.25/LAPB, Frame Relay, and ATM.

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