Manuale d’uso / di manutenzione del prodotto 1900 del fabbricante Cisco Systems
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Corporate Headquarters: Copyright © 2002. Cisco Systems, Inc. All rights reserved. Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA Release Notes for t he Catalyst 1900 and Catalyst 2820 Series Swit ches, Version 9.
2 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Using Previous Releases of the Switch Firmware Using Previous Releases of the Switch Firmware The Catalyst 1900 and Catalyst 2820 switches are sh i pped with fir mware v ersion 9.
3 Release Notes for the Catalyst 1900 and Cata lyst 2820 Series Switches, Version 9.00.06 OL-2901-01 Features Features The Catalyst 19 00 and 2820 sw itches running firmware v ersion 9.
4 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Limitations Limitations These sections provide usage limitations for the swit ches. Limitation Specific to the Catalyst 2820 Switches After removing o r inserting a module, click Reloa d to display a fr esh switch ima ge on the Ho me page.
5 Release Notes for the Catalyst 1900 and Cata lyst 2820 Series Switches, Version 9.00.06 OL-2901-01 Usage Guidelines • If you connect an auton egotiating 100B ASE-TX port of a Catalyst 1900 switch to a device that do es not autone gotiate, there could be pro blems establ ishing a link.
6 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Usage Guidelines • If the switch is directly connected to a termi nal or terminal emulator rather than to a modem connection, you must con figure t he switch to the same baud rate and character f ormat as the terminal or emulator .
7 Release Notes for the Catalyst 1900 and Cata lyst 2820 Series Switches, Version 9.00.06 OL-2901-01 Caveats • While performing a f irmware upgrade, the switch might n ot respond to commands for as lon g as 1 minute. This is nor mal and correct. I f you interrupt t he transfer by turning the swi tch of f and on, the fir mware could be corru pted.
8 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Caveats • CSCdk66781 Networks that use IBM T ype 1 cabling with ports configured as monitor ports can hav e problems if the cabl e becomes d isconnect ed.
9 Release Notes for the Catalyst 1900 and Cata lyst 2820 Series Switches, Version 9.00.06 OL-2901-01 Caveats • CSCdk01961 If you use VTP pruning with Fast Et herChannel, losing one conn ection on one high-speed lin k pre vents pruning fr om working prop erly .
10 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Caveats – Enable port security on the switch port connected to the serv er , set the upper limit of the number of addresses the secure port can hav e, and set the Action U pon Address V iolation option to Ignore.
11 Release Notes for the Catalyst 1900 and Cata lyst 2820 Series Switches, Version 9.00.06 OL-2901-01 Caveats Resolved Caveats in Previous Versions These problems were resolved in v ersion 9.
12 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Caveats This problem was resolv ed in ve rsion 9.
13 Release Notes for the Catalyst 1900 and Cata lyst 2820 Series Switches, Version 9.00.06 OL-2901-01 Related Documentation • CSCdm58378 Whether in VTP transparent or server mode, the switch drops VTP packets from block ed ports and no longer recei ves and sends t hese packets to unblock ed ports.
14 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Obtaining Documentation Ordering Documentation Cisco documentation is a vail able in the follo wing w ays: • Registered Cisco Direct Customers can order Cisco product d ocumentation from the Net working Products MarketPlace: http://www .
15 Release Notes for the Catalyst 1900 and Cata lyst 2820 Series Switches, Version 9.00.06 OL-2901-01 Obtaining Documentation Cisco.com Cisco.com is the foundation of a suite of interacti ve, network .
16 Release Notes for the Catalyst 1900 and Catalyst 2820 Seri es Switches, Version 9.00.06 OL-2901-01 Obtaining Documentation Cisco TAC Web Site The Cisco T A C W e b Site allo ws you to resolv e P3 and P4 issues yourself , saving both cost and time. The site provides around-the-clock access to online tool s, kno wledge bases, and software.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Cisco Systems 1900 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Cisco Systems 1900 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cisco Systems 1900 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cisco Systems 1900 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cisco Systems 1900, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Cisco Systems 1900.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Cisco Systems 1900. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cisco Systems 1900 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
