By Donna L. Harrington

Designed for aspiring CCNP and CCIE(r) pros, this essential lab consultant builds on Cisco(r) Internetwork Troubleshooting (CIT) issues that arrange you for the CCNP Troubleshooting examination. choked with functional routines that get you prepared for demanding situations at the activity, CCNP functional stories: Troubleshooting provides an side over the contest via realworld software of LAN and WAN themes.

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Do you ask the equipment or the user? Who is waiting ByDonna L. trouble Harrington for the results? What has happened? When did it occur? Why? Where did it happen? Are you using 10/100-Mbps Ethernet to the desktop; 155-Mbps ATM; or carrier services such as cable Publisher: Cisco Press modems, digital subscriber line (DSL), wireless, ISDN, Frame Relay, Switched Multimegabit Data Pub Date: April 04, 2003 Service (SMDS), ATM, or long-haul Ethernet? The protocols, technologies, media, and topologies ISBN:of 1-58720-057-0 entail lots complexity and the only thing constant is change.

If it is truly a proprietary solution and other vendors cannot use it, it probably is not environments a standard. A standard really refers to a solution available to multiple vendors. Designed for aspiring CCNP and CCIE(r) professionals, this indispensable lab guide builds on Now that I have defined standards and the standards process, what about the need for Cisco(r) Internetwork Troubleshooting (CIT) topics that prepare you for the CCNP protocols? Communications protocols are rules governing the transmitting (Tx) and receiving Troubleshooting exam.

TCP is connection-oriented, which means the host must establish a logica connection, such as a 3-way handshake, before communications can occur. Flow control occurs through windowing, and TCP is reliable in that it uses acknowledgements (acks) and negative acknowledgements (n UDP is connectionless, which means it does not require an established connection before communications c occur. It is unreliable at the Transport Layer, which means that the reliability is left up to the Application La • Table of Contents TCP is like the certified mail protocol; whereas, UDP is like the regular mail protocol.

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CCNP practical studies: troubleshooting by Donna L. Harrington
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