3Com 3C16710 manuale d’uso

Part N o. DUA 1671- 0AAA03 Published October 1997 O F F I C E C O N N E C T ® H U B 8/TPM 3C1 6710 U S E R G U I D E 16710.bk : FRONT.FRM Page 1 Tuesday, October 7, 1997 11:38 AM[...]

3 C om C o r p o r a t ion ■ 5 40 0 B a y f ront Pl a za ■ S an t a C l a r a , Ca l i f o r n ia ■ 9 505 2 - 8 145 © 3 C om T e c h nolo g i e s , 19 9 7 . Al l ri g hts r e s e r v e d . N o p a r t o f this docum e ntatio n m a y b e r e p roduc e d in a ny f orm or b y a ny m e ans o r u s e d t o m a k e a n y d e r i v a t i v e w o r [...]

C O N T E N T S I M P O R T A N T S A F E T Y I N F O R M A T I O N W I C H T I G E S I C H E R H E I T S H I N W E I S E L’ I N F O R M A T I O N D E S É C U R I T É I M P O R T A N T E Y O U R H U B A D D R E S S E S A B O U T T H I S G U I D E Introduction 1 How t o Use This Gu id e 1 Conventio ns 2 I N T R O D U C T I O N Ne tworki ng T erm[...]

M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R In stal ling Q uick Confi g M a nage r 4-1 In stal lati on R eq ui reme nts 4 -1 In stal lati on Proc edur e 4 -2 Ru nn ing Q ui ck C on f ig Man ager 4-2 Confi gurin g Mu ltipl e Hu bs 4- 3 Quic k Confi g Mana ger Wi ndow M ap 4- 3 Acces sin g th e Hub 4-6 Givin g the H ub[...]

Vi ewing I nterna l Versi on Nu mb ers 5- 20 Dow nl oadin g a So ft ware U pg rade 5 -21 P R O B L E M S O L V I N G Is olati ng a Pro bl em 6- 1 Problem s Wh en Usin g Y ou r Hu b 6 -2 Problem s Wh en Usin g Qu ic k Con fig M a nage r 6- 3 P roble ms When Usi ng VT100 6-3 Problem s Wh en Usin g an IP /I P X- ba sed Ma na gem ent Ap plic ati on 6 -[...]

16710.bk : 16710.TOC Page vi Tuesday, October 7, 1997 11:38 AM[...]

I M P O R T A N T S A F E T Y I N F O R M A T I O N WA R N I N G : Warnin gs co nta i n dire c tion s t ha t yo u must follow for your personal safet y . F o llow all instructions carefully . Please read carefully the followin g informatio n before installing the OfficeConnec t® hub: ■ Exc eption al ca re mus t be t aken duri ng inst allat ion a[...]

W I C H T I G E S I C H E R H E I T S H I N W E I S E AC H T UN G : Die W arnungen ent halten A nweisungen, die Sie zu r eigenen Sicherheit zu befolgen haben. Les en Sie bitte die folgenden Informat ionen sorgfältig du rch, bevor Sie d en Hu b einba uen: ■ Auf beson dere Vorsic ht m uß wä hren d d es Ein- u nd Ausbaus d es Hubs geachtet we rde[...]

L’ I N F O R M A T I O N D E S É C U R I T É I M P O R T A N T E A VER TISS EME NT : Les avertissements contiennen t les ins tructions que vo us devez suivr e pour vot re sécurité per sonnelle. Suivre toutes l es instructions avec soin. V euillez lire à fon d l’informat ion suivante a v ant d’installer le m o yeu: ■ Le soin exce p tion[...]

Y O U R H U B A D D R E S S E S U si ng Quic k Con fig Mana ge r , yo u can co nf igu re address information for your hub, which affects the way you can mana ge i t. It is important that you n ote dow n th is in fo rm a tio n as yo u m ay nee d to ente r it wh en man aging th e hu b a gain. Use th is p a ge t o no te do wn y our se tt ings. If yo u[...]

A B O U T T H I S G U I D E Intr o duction T his gu ide des cribes how to se t up and manage the OfficeCo nnect® Hu b 8/TPM. The hub is ready for use in yo ur netw or k. It do es not requi re mana g ement to get it wo rk ing . Management simpl y allo ws you t o perform add itional networ k fun ctions , for e xample mo nitor ing you r n et work and[...]

2 A B O U T T H I S G U I D E C on v entions The icon conv en tions that ar e use d in t his gu ide a re: The te xt co nventio ns that are us ed in thi s gui de are: Icon Typ e Des cri p ti on Information N ote Inf orma tion not es ca ll atte ntion to important features or instructions. Caution C auti ons al ert you to per sona l safety risk, s yst[...]

1 I N T R O D U C T I O N W elc ome to the w orld o f netw orking wit h 3C om ® . In the mod ern b usiness environ me nt, com mun icat ion an d shar ing in fo rmat ion i s cruc ial. Co mpu ter ne twor ks ha ve p r ov ed t o be on e o f t he faste st modes of communica tion but until now only large busi nesses c ould af ford the net worki ng advant[...]

1-2 C H A P T E R 1: I N T R O D U C T I O N a stac k (each hub i s a sing le rep eater ) . Th e Office Connec t Hub 8/TP M h as ei ght 1 0BA SE-T por ts and a ni nth 10B A SE - 2 (C oa x) por t. This guide helps you ge t the m os t o ut of y o ur h u b . Netw orking T ermino logy A Netw ork is a c olle ction of wor kstat ions (for example , IBM-co[...]

Networking Terminology 1- 3 A Segment i s t he l engt h of Eth ernet cabl e c onnect ed t o a port, wh ether th is c able i s 10BASE- T , 10BASE- 2 (Coax) , or oth e r ty p e. Wh en yo u da is y- ch ai n equ ipmen t t ogeth er wi th 10BASE- 2 (C oa x) cab le, al l of the cab le form s a single seg ment . Pa c k e ts a re the un it s of in fo rma t [...]

1-4 C H A P T E R 1: I N T R O D U C T I O N IP (In terne t Protoc ol) is a data communicati on protocol use d to conne ct comput ers an d data equi pment in to com puter net work s. I t is used on a large intern atio na l ne twor k ca l led t he Inte rnet , which is composed o f univ ersit ies, gove rnment fa ciliti es , rese arch inst ituti ons a[...]

2 C R E A T I N G Y O U R N E T W O R K All of th e pr oducts in the Offic e Connec t ® r ange are design ed fo r ease of use. This cha pter descri bes how t o u s e y o ur Of f ice Connec t Hub 8/TP M to create your ne twor k, and h as i nfor ma tio n o n: ■ The hu b ’ s L ED s an d por ts ■ Wha t you need to create yo ur net work ■ Whe r[...]

2-2 C H A P T E R 2: C R E A T I N G Y O U R N E T W O R K Fi gur e 2-1 The LEDs And How T o U se Them 16710.bk : CREYRNET.FRM Page 2 Tuesday, October 7, 1997 11:38 AM[...]

LEDs an d P orts 2- 3 Figure 2-2 The P o rt s And H ow T o Us e Them 16710.bk : CREYRNET.FRM Page 3 Tuesday, October 7, 1997 11:38 AM[...]

2-4 C H A P T E R 2: C R E A T I N G Y O U R N E T W O R K Before Y ou Start Y our O ff iceCo nn ect hub com es with: ■ One p ower ad apt er for use with t he O ffice Co n n ec t hub ■ A Wa r rant y Regist ration card for you to fi ll out an d return ■ F our rubber feet ■ F our st acki ng cl ip s ■ One 3 .5 ” T ranscen d ® Quic k Confi[...]

Posi t ion ing t he Off ic e Connect H ub 2- 5 In o rder to c omply wit h th e 10BAS E-T s ta ndar d , po rts designed f o r workstation connections have b een marked with the graphical symbol ‘x ’ . This denotes a crossov er in t he por t’ s in ternal wiring, for example 1x, 2x, 3x... Hu b Con n ec tio ns If you have add ition al hubs you w [...]

2-6 C H A P T E R 2: C R E A T I N G Y O U R N E T W O R K Using th e Rubb er F e et and Stac ki ng Cl ips The four se lf- adhe sive rubb er fe et prevent your hub fr om slid ing arou nd on your desk. S tick the f eet to the m arke d areas at each corn er of t he und erside of you r hu b. The four s tac ki ng cl ips are us ed for neat ly and secure[...]

Wa ll Mou nting the Offi ce Connect H ub 2- 7 W all M oun ting th e Offic e Conne c t H ub There a re two slots on t he und erside of the OfficeCo nnect hub which are used for wall mo unti ng. Y o u can m ount the hu b wi th t he LED s faci ng u p wards or downw ards , to suit your needs. When wall mou nting your hub, ens ure that i t is within rea[...]

2-8 C H A P T E R 2: C R E A T I N G Y O U R N E T W O R K The hu b det ect s al l por t co nn ect io ns, so you ca n st art usi n g y our ne two rk im me dia t ely . Wh en y ou nee d mo re po rts, si mply ad d mor e Offi ce Conne ct hub s. If y ou are usi ng port 8 to c onne ct a wor ksta tion, ensure the MDI/MDIX switch is set to MD IX . If y ou [...]

Conne cti ng Of fic e Co nnect H ubs To ge t he r 2- 9 Connectin g Hubs Using 10BASE-2 (C oax) When using 10BASE-2 (Coax) cable, it is impo rtant that bo th ends o f the segment are properly terminated with 50 O hm terminators ( end pieces ) . Only use 50 O hm 1 0BASE-2 (Coax) cables and u se a ‘Y ’ piece for ea ch hub. Y ou can use ‘T ’ pi[...]

2-10 C H A P T E R 2: C R E A T I N G Y O U R N E T W O R K Connecting Hubs Using 1 0BASE-T Y ou c an connect hubs t ogether with 1 0BASE-T in a number of ways, but f or si mplicity we recommend the fo llo wing metho d: 1 Star ting from the bottom , connec t por t 8 of the l ower hub to po rt 7 of th e hub im mediat ely abo ve. Re peat for ea ch h [...]

S pot Checks 2-11 Check ing H ub C onne ction s When y ou ha ve con nected yo ur hubs, power the m on. The Por t Sta tus LED s for t he por ts yo u have us ed sh ould be gre en for 10 BASE-T , or off for 10B ASE-2 (C oa x). If th ey ar e not , ch ec k your conn e ction s . I f t h e 1 0 B A S E - 2 ( C oa x ) p or t i s n o t u s ed a n d i s n o t[...]

2-12 C H A P T E R 2: C R E A T I N G Y O U R N E T W O R K 16710.bk : CREYRNET.FRM Page 12 Tuesday, October 7, 1997 11:38 AM[...]

3 A B O U T N E T W O R K M A N A G E M E N T Net wor k man agem e nt is not requir ed t o get your hub wor ki ng, it simp l y al lows you t o c hang e th e w ay it work s a nd to mon itor w hat is ha pp ening to y our network. Each Of fi ceConne ct® Hub 8/TPM is a separa te man agea ble enti ty , tha t mea ns you ma na ge ea ch O ffi ceConn ec t [...]

3-2 C H A P T E R 3: A B O U T N E T W O R K M A N A G E M E N T inform ati on throu gh a variet y of ser vi ces. Thi s appendi x describes t hese services.” on page C-1 . Why Mana ge Y our H ub ? With ma na gem ent , you ca n chan g e an d vie w the way you r h ub and network operate s: ■ Con figure IP info rmation for the h ub so th at a n IP[...]

Conne ctin g to the H ub an d Managi ng 3- 3 ■ Con figure securi ty for th e hub , in clud ing settin g up new users and spec ifyi ng wha t equip men t is al lo we d to com m u ni ca te t hro u gh th e hu b . ■ Set up r es ilienc e; s pecify a ba ckup co nnection tha t takes over sh ould a ma in connec tion fai l. ■ Config ure the h ub to sen[...]

3-4 C H A P T E R 3: A B O U T N E T W O R K M A N A G E M E N T Fi gur e 3-1 Dif ferent M anag ement C on nections T o The Hub Mana gin g T hr ough the C onsol e P ort This s ect ion d esc ribes ho w to co nnec t an d se t up equ ipmen t t o co mmuni ca te wi th th e hub thr ough the co nsole p or t (call ed out-of-ban d ma nage me nt ). By defaul[...]

Conne ctin g to the H ub an d Managi ng 3- 5 Using Qui ck Config M anage r C onnec t one end of the null mo dem c able to the co nsole port on th e hub , a nd the o the r to the s eri al (RS 232) port on y our man agement s tat ion. Qu ic k Co n fig M a na g e r u se s SL IP to ma n a g e yo u r hu b . Whe n you have made your c onnec ti on an d in[...]

3-6 C H A P T E R 3: A B O U T N E T W O R K M A N A G E M E N T Mana g ing O ver th e N et wor k Th is se c tio n de sc r ib es how to se t up eq u ip m en t to allow yo u to com munic ate with the hub over the ne twor k (c alled in-b and mana gement ) . Be fore yo u can m an age yo ur hu b over the net wor k u sing IP , you m us t co n ne c t to [...]

Re mot e M a nag e me n t Ser v ice 3- 7 Refer to Chap t e r 5 for info rmat ion on pe r for ming add iti on al m a nage me nt u sing t he V T100 mana g em ent in ter fac e. Re mo te Ma n age me nt S e rv i ce Th e Of ficeCon ne ct h ub ha s a sp ecia l modem d ial-out fea ture which can be s et up by yo ur supplie r to infor m them when yo ur h ub[...]

3-8 C H A P T E R 3: A B O U T N E T W O R K M A N A G E M E N T 16710.bk : ABOUTMAN.FRM Page 8 Tuesday, O ctober 7, 1997 11:38 AM[...]

4 M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R This c hapter d escri bes how t o in stall a nd use Qui ck Config Man ager. F o r an over view of wha t you ca n do wh en mana gin g the h ub, see Chap t e r 3 . The sections in th is chapt er are i n the o rder you wo ul d normally p er for m the m wh en m a nagi ng th e[...]

4-2 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Ins tall atio n Proc edure Quick Conf ig Manag er can be insta lled o n it s own or on to a wor kst ati on tha t alrea d y has ot he r T ran scend ® ma na gem ent app licat io ns in sta lle d on it . CA UTION: Do not install Quick Config Manager in t h[...]

Confi guring Mul tiple Hubs 4- 3 If yo u ar e go in g to ma na ge ove r a s er ia l li n k fro m your ma na gem ent statio n, Q uick Confi g M anag er uses COM 1 as the d efault seria l por t. Y ou can chang e this by e ditin g the foll owing line u nder the [slip] subs ection o f the QUICKMGR .INI fil e : Seri al At trib= CO M1 :960 0, n, 8,1 Edit[...]

4-4 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Fi gur e 4-1 Quic k Config Ma nage r Wind ow Ma p 16710.bk : MANAGING.FRM Page 4 Tuesday, Oc tober 7, 1997 11:38 AM[...]

Quick Conf ig Manager Wi ndow Map 4- 5 16710.bk : MANAGING.FRM Page 5 Tuesday, Oc tober 7, 1997 11:38 AM[...]

4-6 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Accessing t he Hub The O fficeCon ne ct Hub 8/TP M use s com mu nit y strings a s a sec uri ty me asu re, to ch ec k m an agem en t acces s to the hu b . T he co mmun ity stri ng you use mu st ma tch one of th e co mmu ni ty strin gs c onf i gu red for [...]

Giving t he Hub an IP Addres s 4- 7 Y ou ca n a lso use t he Comm unit y/Polling screen to: ■ Au tomat ica lly di sp la y a gr aph ic al r epr ese nt ati on of the hu b e ver y ti me y ou star t Q u ick Con fi g M ana ger. ■ Def ine h ow regu larly th e grap hic al represe ntat ion of th e hu b is up d at ed. ■ Def ine how re gula rly any dis[...]

4-8 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R T o di splay th e IP Setup dialo g box a nd view o r configure the hub’ s address set ting s: 1 Fr o m t h e Conf igure men u , sele ct IP Setup ... Quic k Config Mana ger d isplays eit her the IP S et u p d ialog box or the Eas y Setup Op tion, as sh[...]

Giving t he Hub an IP Addres s 4- 9 2 Ent er the relevan t informat ion in to th e IP Se tu p diolog b ox or Easy Set up screen s an d clic k on OK to exit th e screen s. 3 Res et t he hub for an y c ha nges to t ake ef fe ct, se e “R esetti ng th e Hub” o n pa ge 4-11 . A ft er r es et ti ng th e hu b , yo u may need to sel ect Reset View fro [...]

4-10 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R ■ Subnet M ask — Pro vid es a box for y ou to type the subn et mas k for the I P address. ■ En ab le IP — If disa bl ed, the IP field s for th is dial og box are bl an ked a nd g rayed-o ut. I f enabl ed, the I P fi eld s a re en abl ed , a ll [...]

Rese tting the Hub 4-11 Resetti ng the Hub Resett ing t he h ub simul ates sw itching t he hub off and on. Y ou may want to reset th e hub if you wa nt to: ■ Apply a ny c hanges made t o th e hub ’ s IP c onf i gur atio n. ■ Re sets th e h ub’ s stat is tic s coun te rs . CA UTION: Performing a reset may cause some o f the data being transm[...]

4-12 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Vie wing the Hub Quic k Con fig M ana ge r ca n disp lay a g rap hic al represe nt atio n of th e hub yo u are ma na ging, with : ■ T he ports co lor cod e d to sho w the ir c onditio n ■ The Aler t LED refle ctin g its phys ica l state T o di spla[...]

Displaying I n formation About the Hub 4-13 Displa ying Informat io n About th e Hub Qu ick Conf ig Mana ge r enabl es you to d isplay det aile d infor m ation abou t th e hu b . Thi s info rmat ion is store d withi n the hub in a list, c alled a MI B (Ma n ageme n t In fo rmat ion Base ). T he M IB d e fi nes what in formation can be obt ained fro[...]

4-14 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R sysD esc r Shows the sy stem des cript ion suppl ied by t he h ub ’ s Ma nage me nt Ag en t s of twa re . sysO b je c tId Shows the SN MP objec t identifier for t he h ub ’ s Ma nage me nt Ag en t s of twa re . sysU p Tim e Show s the ti me t hat h[...]

Setting U p t he Ale rt L ED 4-15 Settin g Up the A lert LED T he A lert LE D ca n war n y ou of p ote n tia l pr o bl ems with your networ k. Quick Con fig Manager allows yo u to : ■ T est th e Al ert LE D. ■ Config ure the c ond ition s th at cau se the A ler t LED to li ght. ■ View what c onditi o ns hav e c aused t he Al er t LED to li gh[...]

4-16 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Fi gur e 4-6 Alert s P anel 3 Config ure the co nd ition s fo r the Al er t LED. 4 Cl i ck on OK wh en th e Aler t LE D se tu p i s comp let e. If any Aler t con diti ons are ac ti ve, the con d itions ar e dis playe d in r e d. The other c ondi tions [...]

Setting U p t he Ale rt L ED 4-17 C oa x P ort P arti t io n Enabled / Dis ab led Allows y ou to s pecif y whethe r th e Alert LED lig hts if the c oaxial por t be comes pa rtitioned. If this condit ion i s resolve d after causi ng the Ale rt LE D to lig ht, th e L ED g o es off (i t st ays lit if ot he r condi tions also ca used it t o lig ht). Lo[...]

4-18 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Networ k U til izati on Hi g h / M ed / Low / Di sabled Allows y ou to s peci fy whet her th e Alert LED ligh ts if a c er tain leve l of ne twork uti lizat ion is exce eded for fiv e seco nds. The level s are: ■ High — 80% ne twork uti liza tion ?[...]

Monitor ing 4-19 M oni toring Ac tivit y an d Er rors S tatisti cs Quick Config Manage r allows you t o display the total n et work acti vi ty an d err or s se en by a po rt or the h ub (all p or ts) in any one tim e peri od. T o d isplay the Ac tivity /Errors gra ph for a p ort : 1 Double-c lick on the po r t for which you wan t to di splay t h e [...]

4-20 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R T ota l Error s Shows t he total n umber of errors th at ha ve occurre d per poll, it should be a small percent age of th e reada ble fram es figure. Ru nt s Sho ws the nu mber of f r am es r ec ei ved with oc te t cou nts le ss th a n th e min im um l[...]

Monitor ing 4-21 F rame T y pe s S t ati s tic s Quick Config Manage r allows you t o display the total netw ork f rame t yp es seen by a po rt or the h ub (al l ports) in a ny one t ime period. A ny fra mes producin g erro rs are not includ ed, these are shown in the Acti vi ty/Err ors g raph , se e “Mon itoring Activit y and Errors Statist ics?[...]

4-22 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Unic ast Show s t he pe rcen tage of re adab le fr ame s received that are addre ssed to singl e devic es. Multi cast Show s t he pe rcen tage of re adab le fr ame s re cei ved th at a re address ed t o mult iple de vices . The to tal nu mber of multi [...]

Monitor ing 4-23 Figure 4-9 Networ k Tr affic Grap h Ne twork Er rors Statist ics Quick Confi g Manager allows y ou to d ispla y the nu mbe rs of fram es with error s seen by a p or t or the hub (all por ts ) in any one time period. T o di splay the Network Errors g raph for a por t: 1 Double-c lick on the po r t for which you wan t to dis play the[...]

4-24 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Fi gur e 4-10 Network Errors G raph FCS Er rors Shows t he num ber of f rames rec eived wit h ch ecks u m er r ors tha t do not have a lig nmen t erro rs. FCS erro rs are m ost lik ely ca used b y nois e on the c able and should be a very small pe rc e[...]

Config uring a P ort 4-25 Check th e cab le routin g and reroute any ca bl ing which may be aff ected by other noi se sources . Lat e Ev en ts Shows t he num ber of fram es for w hich a collis ion was dete cted afte r the val id pack et mi ni mum ti me. A l at e eve n t can o ccu r if y ou ha ve a Local Area Ne two r k that is lon ge r than Ethe rn[...]

4-26 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Y ou ca n co nf igu re a por t so th at it sen ds a trap to a ne twor k ma nage me nt ap plic atio n w h en the st atus of the li n k ch anges ( for e xample , if a devic e is conne cted to or discon nec ted from the por t ), or when t he port partitio[...]

Config uring a P ort 4-27 5 Select eit her En able or Disable fo r Lin k T raps, Par titio n Traps, and Learn Stat ions . 6 Clic k o n OK . In the Repeater Port Info panel: Medi a T ype Sho ws the type of me di a co nnect ed to th e p or t . Pa r ti t i o n S t a t e Shows whe ther t he port is on a nd repe ating traffic , or h as been a utomati c [...]

4-28 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Hub Security The O fficeCon ne ct Hub 8/TP M provid es flex ible com mu nic atio n bet ween you r wor ks tatio ns and other net work eq uipme nt. I t is a good idea to co nfigu re security for the hub to prote ct y our networ k from unwanted commun ica[...]

Hub Security 4-29 Co nfig uring S ecurity at Port Level T o co nfi gure sec urit y fo r a por t: 1 Fr o m t h e Vi ew menu , se le ct Zo o m I n to d isp lay th e re pres entati o n of t h e h ub . 2 Double-c lick on the po r t for which you wan t to con fig ure s ecu ri ty. Qu ick Conf ig Mana ge r displays the Por t Confi gurat ion d ialo g b ox.[...]

4-30 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R ■ MAC Address — Allo ws you to ent er the MA C add ress f or a devi ce to b e au thori zed to t ran sm it thro ugh th is port. When you hav e typed t he MA C addr ess , clic k on <A dd . Use th e forma t xx-x x- xx -xx-x x- xx for th e MAC ad dr[...]

Hub Security 4-31 ■ Disable on Intrusion — Comp ares th e source add ress of all fra mes rece i ved on the p or t to the auth orized ad dresse s fo r that por t. If th e source addr es s o f t he in comi n g fram e does n ot m at ch the autho rized a ddres ses fo r thi s p or t, the por t is disa bled to preven t comm un icat ion. Th is op tion[...]

4-32 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Fi gur e 4-13 Security Configu r ation Panel Quick Conf ig Manager d isplays the Se curity Confi gurat ion panel , as s how n in Figu r e 4-1 3 . 3 Config ure the se cur it y featur es for ea ch po rt. 4 Cl i ck on OK whe n the s ecur ity se tup is c o[...]

Res ilien ce 4-33 Resilien ce Y ou can make your network more robust by adding re s il ie nce to it. When a lin k fai ls, as shown in Fi gure 4- 14 , all comm un icatio n betw een eq uip ment o n each side of the li n k is lo st. It wo uld be very inc onv enient for a manager to physic ally rein state the network im medi at ely and i mportan t comm[...]

4-34 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Resilient L inks are av ailable over twist e d p air media (10BASE-T ) because it carries a link test pulse which is used to decide whether the main link h as failed and the standby link should take over . However , there is no such lin k signal ov er [...]

Res ilien ce 4-35 CA UTION: Remember that you m ust always follow the hub conn ection requirements when linking hubs together , which involves the use of port 8 a nd the MDI/MD IX sw itch. If por t 8 is already in use, you may need to use special cross over cabli ng for any fu r ther lin ks you wis h t o make. C rossov er cabl es allow y ou to make[...]

4-36 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R Fi gur e 4-16 Create Resili ent P air Dialog Bo x In th e Resilie nce Links panel: Main P ort Shows the po rt numbe r of the main link. Sta n dby Por t Shows t he por t numbe r of the stand by lin k. Li nk St ate Shows wheth er the r esilie nt l ink pa[...]

Using the Hub to Mo nitor Oth er Device s 4-37 Dele te Remov es the r esilie nt l ink pair from the tabl e when a n entry in t he res ilien ce table is sele cted. If yo u de le te a n en tr y i n t he re sil ie n ce tab l e, t he cu rrent ac ti ve link rem a ins en abl ed and the c urre nt st an db y l ink i s ca nc el le d . If t he main l ink f a[...]

4-38 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R 2 In the General Info dial og bo x, choose the WorkGroup ca te go r y . 3 In the Work Gro up M oni tor p ane l, clic k on Add . Quick Conf ig Manag er dis plays t he A dd Re mote P oll dia log b ox, as s how n in F igure 4- 17 . 4 In the Ad d/Ed it Rem[...]

Additional Ma nagement 4-39 Wh en y ou h av e ad ded a devi ce t o t he Wo rk Gr oup Monit or table , it s entry i s co lor- code d: ■ Gr een — De vic e be ing polled and c ommu ni ca ti ng . ■ Red — Device being polle d but is not c ommu ni ca ti ng . ■ Blue — Devi ce not be ing polle d by t he hub . In th e W orkGrou p Monitor panel: [...]

4-40 C H A P T E R 4: M A N A G I N G Y O U R H U B U S I N G Q U I C K C O N F I G M A N A G E R 16710.bk : MANAGING.FRM Page 40 Tuesday, Oc tober 7, 1997 11:38 AM[...]

5 A D D I T I O N A L M A N A G E M E N T U S I N G VT100 Th is c ha pte r de s cr ibe s th e ad di ti on al man a ge men t tasks you can per for m using VT100®. F or an overview of th e ma nag em ent you can per f or m and the di ff er ent w ay s y ou can ma ke a manage ment conne c tion to th e hub, see Chap ter 3 . Onl y the ad ditio nal m anag[...]

5-2 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 Scree n Compon e nts The ma in pa r t of a typical scree n contai ns sev eral diffe rent types o f it em. This tabl e give s an exampl e of each c om pone nt, an d ex plai ns its use: Componen t De scr iptio n ◆ Enabled ◆ Choice Field T ext enclosed in markers is a lis[...]

VT100 User Interface 5- 3 Specia l Key stroke s As well as the k eyst rokes prev io usly de scr ibed, there are severa l othe r keys trok es for contro lling the VT100 in t er face . Th ese keys trokes allow y ou to mo ve the cursor a round the sc ree n, ente r i nforma tion and move from on e screen to ano ther : When you have finished entering or[...]

5-4 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 Repeater , Unit and P o r t Screens There a re three l eve ls at whi ch yo u can mana g e the hu b using VT100: ■ Repea ter — If you manage a t Repeate r lev el, y ou are mana gi n g or v iew ing the de vi ce a s a who le. Any st ackable produ cts, f o r ex ample 3Com [...]

S cr een M ap 5- 5 Figure 5-1 VT100 Scr een Map 16710.bk : MANVT100.FRM Page 5 Tuesday, October 7, 1997 11:38 AM[...]

5-6 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 Getting S tarted Th is s ec t ion ex pl a in s l o gg i ng on t o th e VT 10 0 manag ement fac ility , dis playin g the main menu and logging off. Main B anne r If y ou ar e usi n g a VT1 00 t ermi nal c onnect ed ( di rect ly or throug h mod ems) to the con sole por t, yo[...]

Getti ng S tarte d 5- 7 If you cannot see the main ban ner o r it displays incorrectly , it may b e tha t: ■ Y our terminal is not configured as a VT100 terminal. Check t hat your term inal is set u p to operate with the same pa rameters that the h ub ’ s console p ort uses. The console port ’ s a utoconf igu r e o pti on onl y operates if yo[...]

5-8 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 If you a re loggi ng on for t he first time (af ter installat ion or initializa tion), use on e of the default user nam es and passwords sh own in th e followin g table. Th e use r name to use d epe nds on w hich acce ss level you requir e: At the ear l iest op port unity [...]

Getti ng S tarte d 5- 9 Mai n M enu T he Ma i n Me n u, as sh own i n F ig ure 5-4 , is us ed f or acc essin g the vari ous VT100 scr een s. Figure 5-4 Main Menu If you are using th e man agem en t facilit y fo r the fi rst ti me , w e sugg est that you : ■ Set up logo ns f or any ot he r user s a nd ass ign e ach use r an ap prop riate s ecuri t[...]

5-10 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 C onfig uring an d Viewing Setup Inform ation The Ma na gem ent Set up scre en , as sho wn in F ig ure 5-5 , is used t o con figure IP , IPX an d SLIP parame ters fo r the hub. This scree n also provi des access to other screens for you to se t up traps and console port p[...]

Confi guring and V iewing Setup I nformation 5-11 SLIP A ddress SLIP (Seria l Line Inter net P rotoc ol) allow s IP to run over th e consol e por t instead of th e netwo rk. SLIP allows you to use out-of-ba nd T elnet or SNMP m anagement, eith er locally or r emote ly throug h a mo dem . SLIP operat es wi th any v a lid IP addr ess . Th e defa ult [...]

5-12 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 Stat us En ab le d / Disabled This fiel d shows w het her the data link protocol is enab led. Choo se Disab led if yo u wish to preve nt acces s for any re aso n, su ch as s ecu rit y con side rat ions . Dat a Li nk Pr otoco l Th is fi el d sho ws the na m e o f th e IP X[...]

Co nne c ti ng a Mo de m to t he Con sol e P or t 5-13 IP or IPX Address En ter the IP o r IP X a ddr e ss of th e remot e netwo rk manageme nt sta tion t o which SNM P traps sho uld be sent. C ommuni ty Stri ng The c ommunity s tring allo ws a ver y si m ple me th o d o f a ut hen ti c atio n be twe en th e hu b and the rem ote netw ork ma nag em [...]

5-14 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 Fi gur e 5-7 Cons ole Por t Se tup Sc ree n If you alte r th e co ns ole port set tings a nd sel ect OK , y ou terminat e any existi n g sessio n u si ng the console po r t . To a vo id te rm in at i ng th e s es s io n comple tely , ensure t hat th e sett ing s are cor r[...]

Co nfigurin g Loc al Se curity 5-15 Flow Con trol NONE / XON / XOF F / RTS - CT S Bidirec ti onal / R TS - CT S U ni direct iona l Sele ct the flow con trol option that corre sponds wit h yo ur ter m in a l o r m o d em . Sp ee d Auto -Con fig / 1 200 / 2400 / 48 00 / 9600 / 19200 Selec t the baud rate fo r your term ina l or mod em. The hub c an a[...]

5-16 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 The ac ce ss level s are def ine d as : ■ Monitor — Th is allo ws the user t o v iew th e essenti al ope ratio ns of the hub and to esta blish wheth er or not th e hub is opera ting corr ectly . A user at this level cann ot change th e ope rating param eters of the hu[...]

Configu ring User s 5-17 Co nfi gur ing User s Crea tin g Us er s The Cre ate Use r screen, as show n in F ig ure 5-9 , is used to ad d new us ers. This o ptio n is a va ilable only for use rs with secu rit y access l e vel. There can be up to 1 0 u ser s, inc lu di ng th e th r ee d ef au lt u se rs . Up to three use rs c an c onc urre ntly acce s[...]

5-18 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 Editing Users T he E di t Us er sc re en , a s sho wn i n F igure 5- 10 , is used to cha nge your ow n passw ord or commu nity st ring. This option is av ailable only for users with securit y acc ess l evel. No user can d irectl y change another user’ s password or comm[...]

Pollin g a Remote Device 5-19 Dele tin g U ser s The Del ete Users sc reen, as shown in Fi g u r e 5 - 1 1 , is used to re move users f rom th e User List . The Use r List show s all of the users config ured fo r the hub. This o ption is av aila ble only for user s wit h securit y acces s le vel. Figure 5-11 D elete U ser s Sc reen Sele ct the user[...]

5-20 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 The O ffice Co nnec t Hub 8 /TP M must have an IP or IPX address confi gured for it, to enable it t o receiv e responses from the d evice it is polling. T a rget Add res s Enter the IP or IPX ad dress of the de vice t o p ol l. If there ar e multiple instances of the R em[...]

Downloading a Software Upgrade 5-21 Syst em Up T im e This field indicate s how long the hub h as been run nin g since t he last rese t. Numbe r o f Reset s This fie ld shows the total nu mbe r of res ets si nce the hub was first in stal led, or init ializ ed . Last Reset T ype T his field i ndicat e s t he c ause of th e last re set. Mana gem ent [...]

5-22 C H A P T E R 5: A D D I T I O N A L M A N A G E M E N T U S I N G VT100 inform ati on throu gh a variet y of ser vi ces. Thi s appendi x describes t hese services.” on page C-1 . The s oftware download can be perfo rmed t hrough a serial connection (over SLIP) bu t it is much fa ster over the ne tw ork . Fil e Na m e Ent er th e n am e of t[...]

6 P R O B L E M S O L V I N G The Office Conne ct® H ub 8/T PM has b een de signed to aid y ou whe n dete cting and s olving possi ble proble ms with your network. These pr oblems a re rarely ser ious, the c ause is u sually a disconnec ted or damage d cable , or incorre ct configur ation . If this chapte r does not so lve yo ur pr oblem, co ntact[...]

6-2 C H A P T E R 6: P R O B L E M S O L V I N G P rob lems Wh en Usin g Y our Hub P owe r LED not l it. Check you r powe r adapte r connection. If ther e is sti ll no power , yo u may have a fault y po wer ad apter w hic h need s repl acin g wit h ano ther O ffi ce C o nnec t pow er a da pte r . Do not use any oth er po wer a dapter with t he hu b[...]

Problems When Using Quick Config Manager 6- 3 P rob lems Wh en Usin g Quic k Co nfig Man ager Y ou cannot ac ce ss the hub . F or a s uc ces sf ul l oc a l mana g ement con ne ctio n, yo u need to use a stand a rd nul l mod em cable, a nd have t he h ub’ s co nsole po rt set t o 96 00 bau d (or auto conf igura tion enab led ), th e seria l conn e[...]

6-4 C H A P T E R 6: P R O B L E M S O L V I N G Check the set ting s on yo ur term inal or em ulat or . The par ity must be se t to ‘ non e ’ , th e s top bi t ‘ 1 ’ and t he chara c ter si ze ‘ 8 ’ . T he ma na geme nt fa cil ity ’ s auto co nfigurati on works o nly wit h spee ds fr om 120 0 to 19200 baud . Th e T el net mana gement[...]

Problem s Wh en Using an IP/IPX - ba se d Ma nage m ent Ap plic ation 6- 5 Th e IP /IPX -based ma nageme nt a ppli cat ion can no lo ng e r a c cess t he d e vic e. Chec k t hat Comm unity-SNMP acc ess is e nabled , see “C onfiguring L ocal Se curity” on pag e 5- 15 . Check th at the p or t th rough w hic h you are t r ying to acces s th e h ub[...]

6-6 C H A P T E R 6: P R O B L E M S O L V I N G 16710.bk : PROBSOLV.FRM Page 6 T uesday, October 7, 1997 11:38 AM[...]

A D I M E N S I O N S , S T A N D A R D S A N D C A B L I N G Dime nsions and Opera tin g Env ir onmen t Fi g ur e A -1 Dim ens ions And Op erati ng E nviro nment For Th e Hu b BABT Appr ov al ( for U.K . Users On ly) The O ffi ceConne ct® Hub 8/TPM is covered by O fte l Gener al Appr o val , N S/G/123 45/J /100 003, f or in dire ct conne ction to[...]

A-2 A P P E N D I X A: D I M E N S I O N S , S T A N D A R D S A N D C A B L I N G Ca b l i n g 10BASE-T Fig ur e A- 2 Pin Numberin g For 10BASE- T Straight-throug h Fig ur e A- 3 Straight-thr ough 10BASE-T Cabling Cr oss over Fig ur e A -4 Crossover 10BASE-T Cabling 16710.bk : DIMSNSTA.FRM Page 2 Tuesday, October 7, 1997 11:38 AM[...]

Cablin g A-3 C o nsol e P ort Fi g ur e A -5 Pi n Nu mb eri n g F or Ser ia l C on ne ctio n Ex am pl es of Nu ll Mod e m C ab l es Y ou Can U s e Fi g ur e A -6 Exampl e Of Null Modem Cabli n g F or 9 P in W orkst atio n Fi g u re A- 7 Example O f Null Mo dem Cabling F or 25 Pin Workstation 16710.bk : DIMSNSTA.FRM Page 3 Tuesday, October 7, 1997 1[...]

A-4 A P P E N D I X A: D I M E N S I O N S , S T A N D A R D S A N D C A B L I N G Mod em C abl e Fig ur e A- 8 M odem Cabl ing For 25 Pi n Modem Mana ge ment Se ttings Y ou ne ed to set yo ur mana g ement equi pme nt to: ■ Character size — 8 ■ St op bit — 1 ■ P arity — No n e 16710.bk : DIMSNSTA.FRM Page 4 Tuesday, October 7, 1997 11:3[...]

B IP A N D IPX A D D R E S S E S IP Addresses A wor ld -wi de ne t wor k su ch a s th e Inte rn et nee ds a gl oball y-a cce pte d met hod of ide ntifyi ng indiv idua l de vi ce s (wo r k sta tio n s an d ne two r k e qu ipm en t) . Dev ices on th e Int ernet ar e as s ign e d uni que add resses. The I ntern et then behave s lik e a vir tua l n et [...]

B-2 A P P E N D I X B: IP A N D IPX A D D R E S S E S Obtainin g a Network Nu mber There a r e th ree organ izatio ns respo nsibl e for allo cat in g networ k number s. Th ese de tai ls are cor rect at th e time of printi ng, but ma y change . USA - Inte rNIC, Netwo rk Soluti ons A tt ent ion: InterNIC Registr ation Servic es 505 Huntm ar P ark Dri[...]

IP Address es B-3 Asia Pa ci fi c Ne twor k In f orm ati o n C e nt re (APN IC- DO M) A tt ent ion: Asia Pa cif ic Ne two rk In form atio n Centre (APN IC- DOM) c/o Com puter Ce nt re Univers ity of T okyo 2-11- 16 Y ay o i Bunkyo- ku, T okyo 113 Japan Admi n . Contac t: Nakayama, Masa ya (MN89) Te l e p h o n e : +81 3 38 12 2111 ext2 720 e-ma i l[...]

B-4 A P P E N D I X B: IP A N D IPX A D D R E S S E S Cl ass A . Th e hi g hes t o rd er b i t is set to 0, g i vi ng a seve n-b it net wor k nu mbe r an d a 2 4-bi t dev i ce addr es s. Y ou ca n ha ve 125 netwo rks wi th 16,777,2 14 de vice s per ne two r k, an d t he add res s es are in th e ra nge 001.xx x.xxx .xxx to 126.xx x.xx x.xx x (wh ere[...]

IP Address es B-5 The bi ts of the su bnet m ask are set to 1 if the devi ce sh ould tr ea t the co rrespo nding bit in th e IP a ddr ess as par t of the origi nal netw ork numb er or as par t of the subn et number. These b its in th e mask are set to 0 if the de vic e sho uld t reat th e bit a s part of t he de vi ce nu mbe r , as sho wn i n F igu[...]

B-6 A P P E N D I X B: IP A N D IPX A D D R E S S E S IPX Addresses If you a re using th e IPX p rotocol, t he O ffice Connec t® Hub 8/TP M is allo cat ed an IPX addr ess auto matica lly b y the local I PX router or NetW ar e Fil e S erver. This happen s appro ximate ly 60 s econds after the hub is po w ere d up f o r th e f ir st ti me . Y ou sh [...]

C T E C H N I C A L S U P P O R T 3Com provid es easy access to techn ical suppo r t infor mation th rough a var iety of services. This appe ndi x descri bes thes e ser vi ces. Informat ion con tained in thi s appen dix is c orrect at time of public ation . F or the v ery late st, we reco mm en d th at you acce ss 3Co m Cor porat io n’ s W or ld [...]

C-2 A P P E N D I X C: T E C H N I C A L S U P P O R T Ac ce s s by Di gi ta l M o d e m ISD N us ers c an di al in to 3 Com BB S us ing a dig i ta l mo de m for fas t ac ce ss u p to 5 6 K bp s. T o acc es s 3 ComBBS using ISDN , us e the fol lowi ng numb er: 408 654 2 703 3ComFac ts Auto m ate d F ax Ser vice 3 Com Cor po rat io n’ s in ter a c[...]

On line Te chnical Serv ices C-3 3C omF oru m on C omp uSe rve O n li ne Servi c e 3ComForum is a Com puS er ve-b ased ser vi ce co ntain- ing pat c hes , software , driver s, and te chni cal artic les about all 3C o m pr oducts , as well as a mes saging section fo r peer su ppor t. T o u se 3Co mForu m, you need a Com puSer ve accou nt . To u s e [...]

C-4 A P P E N D I X C: T E C H N I C A L S U P P O R T Supp or t from Y our N etwork S upplie r If add iti onal assi st an ce i s r equi red , co nt act yo ur ne twor k supp li er . Ma ny sup plie rs are autho rize d 3C om service part ners who ar e quali fie d to prov ide a varie t y of se r vice s, incl udi ng ne t work p lan ning, i nstallati on[...]

Support fro m 3Com C-5 3Com B enel ux B.V . Belgium Netherlan ds 32 2 725 0202 31 30 6029700 3C om Ca nada Calgary Montre al Otta wa Toronto Vancouver 403 26 5 3266 514 68 3 3266 613 56 6 7055 416 49 8 3266 604 43 4 3266 3Com Eur opean HQ 49 89 627320 3Com Fr ance 33 1 69 86 68 00 3C om G mbH Aus tri a Czech R epublic/Slovak Re pu bl ic Ge rm an y [...]

C-6 A P P E N D I X C: T E C H N I C A L S U P P O R T Re turning P roducts for Repair Before yo u send a produc t d irec tly to 3Com for re pair , you mu st f ir st obta in a Retu rn Mat eria ls Author izat ion (R MA ) num ber. Produ cts sent to 3Co m wi thout RM A numbers will be r e turne d to th e sen der uno pene d, at the sen der ’ s exp en[...]

I N D E X Num erics 10BASE-2 1-2 , 2- 5 conn ecti ng hubs 2-9 segment 1-3 10BASE-T 1-2 , 2-4 , 2-5 , A-2 conn ecti ng hubs 2-10 3Com Bu lle tin Bo ard S e rv ic e (3C om BBS ) C-1 3C om sales off ices C-4 3C om URL C-1 3C omF a cts C-2 3C omF orum C-3 A abo ut net wor k manag ement 3-1 acces s level s 5-17 manag er 5-16 monit or 5-16 secure m onito[...]

a modem to th e c onsole port 5-13 manag emen t 3-3 wor ksta tions 2-7 c o nne c ti ng hub s tog et her 2-8 using 10BASE-2 ( Coax) 2- 9 using 10BASE-T 2-10 con nec t io ns checking 2-11 hu b 2-5 wor ksta tion 2-4 c onso l e port 3-4 , 5-13 , A- 3 aut oco nfi gur atio n 5-1 5 chan ging th e mana gement st ati on ’ s port 4- 3 enab li ng/d isabl in[...]

conn ect ing to anothe r hub 2-8 connections 2-5 d oub le- cli ck i ng 4-12 g ene ral inf o rma tio n 4- 13 gettin g started 1-1 gr ap hi cal repr e sen t ati on 4-7 , 4- 12 ini tia lizi ng 4-11 IP a ddr ess 4-7 manag ing 3-2 moni tor ing ot her dev ices 4-37 port co nfi gur at ion 4- 25 posi tioni ng 2- 5 pro blems 6-2 resetti ng 4- 11 security 4-[...]

MIB I I d ialo g b ox 4-13 mo dem 1-4 , 5-13 , A-4 mo dem d ia l-ou t 3-7 mo nit or f ail u re 4-17 monit ori ng 4-18 other devices 4-37 mo u nti ng 2-7 mu ltic a st fr am e s 4-22 N Ne ed To K no w 4-28 Ne tWare fil e s er ver B-6 netwo rk 1-2 erro r rate 4-18 ex pan di ng C-1 glossary 1-2 loop 1-2 , 2- 8 manag emen t 3-1 , 3-6 manag er commu nity[...]

re mote mana gement service 3-7 Rem ote Poll screen 5-19 re mote t elnet acce ss 5-16 reseller support tool 3-7 rese tti ng the hu b 4-11 resi li ence 4-33 Res il ienc e di alog b ox 4-35 resi li ent li nk s 4-33 , 4-34 rest ar t c ou nt 5-21 re turni n g pr od uct s f or repa ir C-6 RJ4 5 1- 2 roun d tr ip 4- 39 ro und tr i p tim e 5-20 rout er IP[...]

te mpe r atu re A-1 Te r m i n a l 3-5 te rm in al em ul ato r 3- 3 , 3-5 connecti ng 3-5 te rm in al sp e ed 5-15 terminology 1- 2 te sti n g t he Al er t LE D 4-16 TF T P s e rver ad dr es s 5-22 th ro ttl e 5-13 too lo ng er ro rs 4-24 tota l er rors 4-20 TP 1-2 T rans cen d Q uic k Con fig ura ti on M an ager 3-1 tr ap 4-26 Tr a p S e t u p s c[...]

L I M I T E D L I F E T I M E W A R R A N T Y HA RDW ARE: 3Co m wa r rants i t s ha rdware pro du cts to be free fr om de fects in wor kmansh ip an d mat erials , under nor mal u se and service, for the follow ing lengths of time from the date of purchase fr om 3Com or its Authorize d R ese ller : I nt ern etw o rking produ cts One y ear Netw ork a[...]

W ARRA NTIE S EXCL USIVE: IF A 3CO M PRODU CT DOES NO T OPERA TE AS W ARRANTED ABOVE, CUSTOMER’ S SOLE REMEDY F OR BREACH OF THA T W ARRANT Y SHALL BE RE P AIR, RE PL A CEM EN T , OR RE F UND O F TH E P URCH ASE PRICE P AID , A T 3COM ’S OPTI ON. TO T HE FU LL EXTENT ALL OWED BY LA W , THE FOR EGOING W ARRANTI ES A ND REMEDIES ARE EXCL USIVE A [...]

EMC S T A T E M E N T S FCC STA TEM E NT: This eq ui pment has been teste d and found t o comply with t he limits for a Class B digit al device , pur suant to par t 15 of the FCC ru les. Th ese l imits are de sign ed to prov ide r easo nab le pro te ctio n ag ain st har m ful inte rfe rence in a r esidential instal lation. This equipment gener ates[...]

16710.bk : EMCSTATE.FRM Page 128 T uesda y, October 7, 1997 11:38 AM[...]