By Donna L. Harrington
Designed for aspiring CCNP and CCIE(r) pros, this imperative lab consultant builds on Cisco(r) Internetwork Troubleshooting (CIT) subject matters that organize you for the CCNP Troubleshooting examination. choked with functional routines that get you prepared for demanding situations at the task, CCNP sensible reviews: Troubleshooting can provide an part over the contest via realworld program of LAN and WAN subject matters.
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Additional info for CCNP practical studies: troubleshooting
This layer hides lower-layer problems from Troubleshooting exam. Full of practical exercises that get you ready for challenges on the job, layers in that it provides error detection and correction on the receiving end (host). In addition, it segment CCNP Practical Studies: Troubleshooting gives you an edge over the competition through realre-assembles data for upper-layer applications based on various TCP and UDP port numbers. Application world application of LAN and WAN topics. multiplexing is common (just like when you press Alt+Tab to cycle through your open programs in Window example, you may be running a web browser (HTTP 80), telnetted into a router (TCP CCNP Practical Studies: Troubleshooting provides youport with practical information on all the port 23), and co configurations to a TFTP server (UDP port 69) or FTP server (TCP ports 20 and 21) all at the same time.
In the Cisco environment, compression is often Pub Date: April 04, 2003 thought to relate to Layer 2; I will cover that detail in the WAN chapters (Chapter 8, "Shooting Trouble wit 1-58720-057-0 Frame ISBN: Relay," and Chapter 9, "Shooting Trouble with HDLC, PPP, ISDN BRI, and Dial Backup"). Presentatio 840 include ASCII, Extended Binary Coded Decimal Interchange Code (EBCDIC), Tagged Imag Layer Pages: examples Format (TIFF), Joint Photographic Experts Group (JPEG), Musical Instrument Digital Interface (MIDI), MPE Audio Layer III (MP3), Moving Picture Experts Group (MPEG), Rivest Shamir Adleman (RSA), Data Encrypt Standard (DES), Secure Sockets Layer (SSL), and Transport Layer Security (TLS).
Routers filter based on Layer 3 logical network addresses. The router strips and rebuild • Index Layer 2 framing according to the outbound interface. Route filters, such as access control lists (ACLs), CCNP Practical Studies: Troubleshooting distribution lists, route maps, and prefix lists, allow further filtering. ByDonna L. Harrington TCP handles end-to-end connectivity, whereas the transport of the data is handled by the connectionless IP router fromCisco the Press source to the destination makes a decision.