Manuale d’uso / di manutenzione del prodotto OL-6157-01 del fabbricante Cisco Systems
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iii Catalyst 2940 Hardware Installation Guide OL-6157-01 CONTENTS Preface vi i Audienc e vii Pur pose vii Conv enti ons vii Relat ed P ubl icatio ns xiii Obtain ing Documentati on xiv Cisco.
Cont ents iv Catalyst 2940 Hardwar e Installation Guide OL-6157-01 Rear-P anel Descripti on 2-9 Power C onnector 2-9 Consol e Port 2-10 Securi ty Slots 2-10 Management Options 2-1 1 CHAPTER 2 Insta ll.
Content s v Catalyst 2940 Hardware Installation Guide OL-6157-01 100BA SE-FX Port B-4 SFP Module Slot B-4 Consol e Port B-5 Cable an d Adapter Specifi cation s B- 5 Two T wiste d-Pair Cable Pinouts B-.
Cont ents vi Catalyst 2940 Hardwar e Installation Guide OL-6157-01.
vii Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Preface Audience This guide is for the netwo rking or computer tech nician responsible for installing a Catalyst 2940 switch, hereaft er refe rred to as the switch . W e assume that y ou are f amiliar with the concepts and termino logy o f Et hernet an d loca l are a net working.
viii Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Preface Conv entions War ni n g IMPORT AN T SAFE TY INST RUCTIONS This warning symbol means danger .
ix Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Pre face Convent ions Avvertenza IMPOR T ANTI ISTRUZIO NI SULLA SI CUREZZA Questo simbolo di avvertenza indica un pericolo.
x Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Preface Conv entions.
xi Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Pre face Convent ions Av is o INSTR UÇÕES IM PORT AN TES DE SEGURAN ÇA Este símbolo de aviso signi fica perigo. Você se encontra em uma situação em que há risco de lesões corporais.
xii Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Preface Conv entions.
xiii Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Pre face Relate d Publicati ons Related Publications These do cuments p rovid e comple te informati o n about th e switch and ar e av ailable from this U RL: http://www .cisco.com/uni vercd/ cc/td/doc/pr oduct/lan/ca t2940/inde x .
xiv Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Preface Obtain ing Do cument ation Obtaining Documentation Cisco provides several ways to obtain docume ntatio n, techni cal assistan ce, a nd other techni cal resourc es. These secti ons expla in how to obta in tec hnical informa tion fr om Ci sco System s.
xv Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Pre face Obtaining Technical Assistance Documentatio n Feed back Y ou can submit co mments electr onicall y on Cisco.com . On the Cisco D ocument atio n home page, click F eedback at the top of the page.
xvi Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Preface Obtainin g Addi tional Pub lications and Informat ion T o open a ca se by te lephone, use o ne of the following nu mbers: Asi.
xvii Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Pre face Obtaining Additional Publications and Information • Intern et Protocol Jour nal is a quarte rly jour nal publis hed by Cisco Systems for engin eering professiona ls inv olved in de signin g, developing, and ope rating p ublic and pr i vate interne ts and intranets .
xviii Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Preface Obtainin g Addi tional Pub lications and Informat ion.
C HAPTER 1-1 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 1 Overview This ch apter pro vides information about these topics: • Setting up the Switch, page 1-1 • Feat ures , page 1-.
1-2 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Ch apter 1 Over vi ew Front-Pa nel De scripti on • Conf iguration – Supports manu al and autoc onfiguratio n for 10/100 port s .
1-3 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 1 Ov erview Front -Panel Descr iption Port Numberin g Ta b l e 1 - 1 lists the port and slot numb ering for the Catalyst 2940 switch es. 10/100 P orts The 10/ 100 ports use RJ-45 conn ectors and t wisted- pair cab ling.
1-4 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Ch apter 1 Over vi ew Front-Pa nel De scripti on Note Whe n connec ting the sw itch to a 1000 B ASE-T device, be sure to use a fou r twiste d-pair, Cate gory 5 cable .
1-5 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 1 Ov erview Front -Panel Descr iption SFP Modu les The Catalyst 2940-8TF-S switch uses a field-repl aceable SFP module to establish Gi gabit connections. Y ou insert an SFP module into the SFP mo dule slot on the f ront of the switch.
1-6 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Ch apter 1 Over vi ew Front-Pa nel De scripti on The Cisco CWDM SFPs operate on single-mode f iber . The SFPs support both Gigabit Ethernet as well as fiber channel (1 Gigabit and 2 Gig abit) links.
1-7 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 1 Ov erview Front -Panel Descr iption All of the LED s descri bed in this sec tion ar e visible through the GUI managem ent appl ications— the Network Assist ant app licatio n for mu ltiple switche s and t he device mana ger fo r a single sw itch.
1-8 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Ch apter 1 Over vi ew Front-Pa nel De scripti on T able 1 -6 Meaning o f Por t LED Colors in Diff erent M odes Port Mod e Color Meaning ST A T Off No link. Solid gree n Link prese nt. Flashing gre en Activity .
1-9 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 1 Ov erview Rear-P anel Descr iption Rear-Panel Descrip tion The rear panel of the switche s, as shown in Figure 1-4 , have an AC power connec tor and an R J-45 console port.
1-10 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Ch apter 1 Over vi ew Rear-Panel Descr iption Console P ort Y o u can co nnect a swi tch to a PC throu gh the conso le port by using a RJ-45-to-D B-9 adap ter cable . If you want t o con nect a switc h to a term inal, you ne ed t o provide an RJ-4 5-to- DB-25 fema le DTE adap ter .
1-11 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 1 Ov erview Manageme nt Options Management Options Catalyst 2940 swi tches offer these manage ment o ptions: • Network Assistant The Networ k Assistant is a GUI-based ap plicat ion that you can instal l and run on your deskto p; you do not need a web b rowser to run it.
1-12 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Ch apter 1 Over vi ew Managem ent Opt ions.
C HAPTER 2-1 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 2 Installation This chapte r describes ho w to install your switch, ho w to interpret the po wer-o n self-test (POST) , and how to connec t the switch to oth er devices.
2-2 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Prepar ing for Inst allat ion War ni n g Do not stack the chassis on any other equipment. If t he chassis falls, it can cause severe bodily injury and equipment da mage.
2-3 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Preparing for Installation Installation Guidelines When dete rmining wh ere to place the switch, ob serv e these guid elines. • Before installi n g the switch , f irst v erify that the s witch is oper ational b y po wering it on and run ning POST .
2-4 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Verifying Sw itch Op eration • Re gulato ry Complian ce and Safe ty Inform ation for th e Catalyst 2940 Swit.
2-5 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Install ing the Switch Installing the Switch Y ou ca n i ns ta ll th e switc h on or und er a d esk or on a wa ll.
2-6 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Instal ling the Swi tch Figur e 2-1 In stalling the Mounting Scr ews on T op of a Des k Step 3 Peel the adhesi ve strip of f the bottom of the scre w template, an d attach it to the top of the desk.
2-7 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Install ing the Switch Step 7 Place the switch onto the moun ting screw s and slide the swi tch forwar d until it locks in place, as show n in Figu re 2-2 .
2-8 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Instal ling the Swi tch Figur e 2-3 In stalling the Mounting Scr ews Unde r a Desk Step 3 Peel th e ad hesiv e stri p off the b ottom of the screw templa te, and atta ch it to the under side of the desk.
2-9 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Install ing the Switch Step 7 Place the switch onto the moun ting screw s and slide the swi tch forwar d until it locks in place, as show n in Figu re 2-4 .
2-10 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Instal ling the Swi tch Figur e 2-5 In stalling the Mounting Scr ews on a W all Step 3 Peel the adhesi ve strip of f the bottom of the screw temp late. Step 4 Attach the screw t em plate to the w a ll.
2-11 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Install ing the Switch Step 8 Place the switc h onto the mounting scre ws and slide it do wn until it locks in place , as shown in Figu re 2-6 .
2-12 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Connecting t o an SFP Modul e Installing the Switch (Magnet Mount) T o mount a switch by using the magnet, fo.
2-13 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Connecting to an SFP Module Note Refer to the release notes for the latest inform ation about SFP modules supported by the swi tch.
2-14 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Conne cting to 10/ 100 Ports and the 10/100/10 00 Port Connecting to 10/100 Port s and the 10/100/1000 Port The 10/1 00 ports configure themsel ves to operate a t the speed an d duplex setti ngs of attach ed devices.
2-15 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Conne ctin g to t he 10 0BA SE- FX P ort Step 2 Insert th e othe r ca ble end int o an RJ-45 connec tor on the target device. Step 3 Obser ve th e port sta tus LED.
2-16 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Connecting t o an SFP Modul e Step 4 Obser ve th e port sta tus LED.
2-17 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 2 Installation Where t o Go Next The LED turns gree n when the switch and the target device ha ve an establis hed link. The LED turns ambe r while the STP discovers the network topol ogy and sear ches fo r loops.
2-18 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 2 Installation Where to Go Nex t.
C HAPTER 3-1 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 3 Troubleshooting The front -pan el LED s provide troub leshooti ng inform ation about the switch. They show power -on self-te st (POS T) failu res, port-c onnect ivity proble ms, and overall sw itch p erfor mance.
3-2 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 3 Trouble shooti ng Diagno sing Com mon Problem s T able 3-1 Common Connectivity Pro blems and Their Solution s Symp tom Possibl e Caus e Resolu tion No conne ctivity to 10/ 100 ports or 10/100/ 1000 port.
3-3 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 3 Troubleshoot ing Di agno sin g Comm on Pr oblems No connectivity to SFP module.
3-4 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 3 Trouble shooti ng Diagno sing Com mon Problem s T able 3-2 P oor P erfor mance Pr oblems and Their Sol utions Symp tom Possibl e Caus e Resolu tion Poo r perf ormance or ex cessiv e erro rs.
3-5 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 Chapter 3 Troubleshoot ing Di agno sin g Comm on Pr oblems T able 3-3 Cor r upted Sof twar e Pr oblems and Their Solutions Symp tom Possibl e Caus e Resolu tion System LED is amber , and all port LEDs are off .
3-6 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Chapter 3 Trouble shooti ng Diagno sing Com mon Problem s.
A- 1 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 APPEND IX A Technical Specifications Ta b l e A - 1 t hrough Ta b l e A - 3 li st the technical specif ications for the Catal yst 2940 switch es.
A- 2 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendi x A Technical Speci fication s T able A -2 F iber -Optic P ort Sp ecifications for Cata lyst 2950-8 TF-S witch Fiber -Port Power Levels 100BASE-FX po rt SFP module slot 1 1. SFP-dep endent Optical transmitte r wa velength 1300 nm 2 2.
A-3 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Append ix A Technical Spec ification s EN61000- 4-11/IE C1000- 4-11: I mmunity to V oltage Dips, V ol tage V ariatio ns, and Short V.
A- 4 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendi x A Technical Speci fication s.
B-1 Catalyst 2940 Switch Hard wa re Installation Gui de OL-6157-01 APPEND IX B Connecto rs and Cable s This a ppend ix descri bes th e conne ctors, cabl es, and adapt ers th at you use to conn ect th e sw itch to other devices.
B-2 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendi x B Connector s and Cables Connecto r Specificati ons Figur e B-2 1 0/1 00 RJ-45 Pinouts When co nnectin g 10/ 100 port s to .
B-3 Catalyst 2940 Switch Hard wa re Installation Gui de OL-6157-01 Append ix B Connectors and Cables Connec tor Specif icati ons 10/100/1 000 Ports The 10/1 00/1000 Et hernet port on the Catal yst 2940-8T T -S switch use s a standard RJ-45 conn ector .
B-4 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendi x B Connector s and Cables Connecto r Specificati ons 100BASE-FX Port The 100BASE-FX port o n the Catal yst 2940 8TF- S uses an MT -RJ c onnector, sho wn in Figure B-4 . Th is port uses 50/ 125- or 62.
B-5 Catalyst 2940 Switch Hard wa re Installation Gui de OL-6157-01 Append ix B Connectors and Cables Cable and Adapter Specif ications Console P ort The c onsol e port uses an 8-pin RJ-45 c onnect or . Y ou c an co nnect a switc h to a PC thro ugh the console port and the supplied RJ-45-t o-DB -9 adap ter cable .
B-6 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendi x B Connector s and Cables Cable and A dapter Spec ifications Four Twis ted-Pa ir Cable Pin outs for 1 0/100 Ports Figure B-8 and Figur e B-9 sh ow the schem atics of four t wist ed-pair cable s for 10/100 ports.
B-7 Catalyst 2940 Switch Hard wa re Installation Gui de OL-6157-01 Append ix B Connectors and Cables Cable and Adapter Specif ications Four Twis ted-Pa ir Cable Pin outs for 1 000BA SE-T Ports Figure B-1 0 and Figure B-11 show the schema tics of fou r twisted -pair ca bles for the 10/100/1 000 port .
B-8 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendi x B Connector s and Cables Cable and A dapter Spec ifications Cable and Adap ter Pino uts This sect ion descri bes the ca ble and adapter p inouts an d also descri bes how to identify a rol lover cable.
B-9 Catalyst 2940 Switch Hard wa re Installation Gui de OL-6157-01 Append ix B Connectors and Cables Cable and Adapter Specif ications Identifying a Rollover Cable Y o u can iden tify a rol lover cable, al so known as a “crossover” cabl e, by compari ng the two modul ar cable end s.
B-10 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendi x B Connector s and Cables Cable and A dapter Spec ifications.
C-1 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 APPEND IX C Configuring the Switch with the CLI-Based Setup Program This ap pendi x provides a com mand-l ine in terface (C LI)-b as ed setup proce dure for a st andal one swi tch.
C-2 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendix C Configuring the Switch with the CLI-Based Setup Program Taking Out W hat Y ou Ne ed After you ha ve entered the conf iguration information for the switc h, sav e it to flash memory b y using the wri te memory privileged EXEC command .
C-3 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Append ix C Configuring the Swi tch with the CLI -Based Se tup Program Connecting to a Power Source Connecting to a Powe r Source Fo.
C-4 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendix C Configuring the Switch with the CLI-Based Setup Program Starting the Terminal Emu lation Softwa re Figur e C-3 Connecting .
C-5 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Append ix C Configuring the Swi tch with the CLI -Based Se tup Program Entering the Initial Configuration Information Step 3 Conf ig.
C-6 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendix C Configuring the Switch with the CLI-Based Setup Program Completing t he Setup Progra m Completing the Setup Program Foll ow these steps to complete the setup prog ram and to create an initial con figur ation for the switch: Step 1 Enter Ye s at the se two prompt s.
C-7 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 Append ix C Configuring the Swi tch with the CLI -Based Se tup Program Completing the Setup Program Step 9 Ente r Y to conf igure the switc h as the c luster c ommand switch. Enter N to conf igure it as a memb er swit ch or as a s tandalone switch.
C-8 Catalyst 2940 Swi tch Hardware In stallation Guid e OL-6157-01 Appendix C Configuring the Switch with the CLI-Based Setup Program Where to Go Nex t Where to Go Next After you co mplet e the setup pr ogram , the switc h can run th e default con figuration th at you creat ed.
IN-1 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 INDEX Numerics 10/100/10 00 ports cable l ength s 3-3 connec ting t o 3-14 to 3-15 conn ectors and cables B-3 describe d 2-3 to 2-4.
Index IN-2 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 CLI 2-11 accessin g by using Express Set up D-1 accessin g throu gh co nsole p ort D-2 comm and-l ine i nte rfac e See CLI confi.
Inde x IN-3 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 G ground connec tion warning 3-2 ground ed equi pmen t warni ng 3-2 H HP OpenView 2-11 humidity A-1 I installati on conn ect.
Index IN-4 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01 P pack age co ntent s 3-3 to 3-4 patch cables , MT-RJ 2-4 PC, connecti ng to switc h B- 8 perform ance p roblem s, sol ving 4-4 .
Inde x IN-5 Catalyst 2940 Switch Hard wa re Installation Gui d e OL-6157-01 connec tivity proble ms 4-2 pinout four twist ed-pai r, 10/10 0 ports B-6 four twiste d-pair , 1000BASE- T ports B- 7 two tw.
Index IN-6 Catalyst 2940 Switch Hardware Installation Gui de OL-6157-01.
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 OL-6157-01 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 OL-6157-01 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cisco Systems OL-6157-01 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cisco Systems OL-6157-01 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cisco Systems OL-6157-01, 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 OL-6157-01.
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 OL-6157-01. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cisco Systems OL-6157-01 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.
