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http://www.3com.com/tns Par t No. DU A15 1 0-0 AAA 04- P DF Publ ished Apr il 2001 Gett in g the Be st from 3Co m ® Net wor k Superv isor S oftwa re Ver sion 3. 0 for Window s ®[...]

3C om Corporation 54 00 Bayfr ont Plaza Sa nta Clara, Cal if or nia 95 052-8145 Copy right © 2001, 3Co m T echnolog ies. All rights reserve d. No part of this d ocum entatio n m ay be repro d uced in any for m or by a ny means or used t o mak e any d eriva tive w ork (such as t r anslat ion , t ra nsfor mati on, or adapta tion) withou t wr itten p[...]

C ONT EN T S A BOUT T HI S G UI DE How to U se Th is Guide 5 Who Is This Guid e For ? 5 Conventio ns 5 Relat ed Doc umentation 6 Y ear 2 000 Compliance 6 Document ation Comment s 6 1 O VE R V I E W OF N ETW ORK M AN AGEME NT Why Use Netw ork Mana gement? 7 The Be nefits of N etwork Ma nagement 7 F u l l Net w o r k V i ew f r o m a S i n g le PC 7 [...]

Monitorin g Core D evices and Li nks 14 Reacting t o Network Events 15 V i e w i n g t h e S t r e s s o n y o ur Ne t w or k 1 5 Viewi n g Deta iled Str es s I n dica to rs 16 Managing a nd Ma nipulat ing Ev ents 1 9 Intelli gent Event Gene ration 19 Ins tant Not i fic ation of Sig nificant Activ i ty Using A l e rts 20 V i e w ing N e t w o r k T[...]

A BOU T T HIS G UI DE Ho w t o Us e Th i s Gu i de T hi s gui de i s designed to be read befo re you s t art t o u se 3Com ® Netwo rk Supe r vi sor . I t shou ld ena bl e yo u t o g a in a n o ve rv iew of the ap p l ica ti on and h ow y ou ca n ben efi t f rom i t. Thi s gui de out li n es: ■ Th e mai n con ce pt s and benefits of network manag[...]

6 A BO UT T HI S G UI D E Rel ate d Do c um en ta t i o n The fol lo win g docu ment prov id es usef ul backg round i nfo rma ti on on net work s and n et work in g. The 3C om I nt rodu ct io n t o Net wor ki ng ( su ppl i e d wi th Ne t work Supe r vi sor ) . This document can be accessed from the W indows St ar t menu , t hen by f ol lo w ing th [...]

1 O VERV IEW OF N ET W ORK M AN AGEMENT This cha pter gives you an overview of the basic con cepts of network manag ement . I t out li ne s: ■ Why Use Net wor k Mana gemen t? ■ The Ben efi t s o f Ne twor k Mana gemen t ■ Key Net wor k M anag ement Fu nct i ons Why Us e Ne t wo r k M an age me nt? Many bus i nes se s toda y run t he i r c omp[...]

8 C H A PTER 1: O V E R V I E W OF N ET W O R K M ANA G E M E NT R educing Dow n ti m e Ne twork d ownt ime c an aff ect y our bus in ess a nd it s product i vi t y . W h en th is happen s , i t i s i m p or tant tha t yo u res tore co nne ct io ns a s qu ic k ly a s poss i bl e. Rea ct i ve net wor k m ana geme nt does redu ce downt im e by re spo[...]

K e y N e t w o r k M a nag e m e nt F un c t i o ns 9 Pr e d ictin g Pro b lem Li nks a n d Devi ces Thi s l ets y ou pr ovi de p reve ntat i ve sol ut i ons us i ng le ss s taff-h o urs and reduces the amo unt of t ime tha t your n etwork i s ei th er i neffi c ien t or unav a il abl e . Fo r ex ampl e, net wor k manag ement sof twa re ca n show [...]

10 C H A PTER 1: O V E R V I E W OF N ET W O R K M ANA G E M E NT[...]

2 U SI NG N ETWORK S UPERVIS OR TO M AN AGE Y OU R N ETW O RK 3Co m ® Net wor k Supe r vi sor is a power fu l and e as y- t o- u s e net wor k manag ement to ol in the 3Com ® ne t wor k manage m ent rang e. Thi s chap ter co ntai n s a n ove rv iew of h ow you and y our net wor k can bene f it from Ne two rk S up e r vis o r. T h is app l ie s wh[...]

12 C HA PTER 2: U SI NG N ETW ORK S UPERVISOR TO M ANAGE Y OU R N ETW ORK Ov er vi ew o f Network Supe rvisor W i za r ds Wiz a r d s a re provided to guide you through the setup and configuration of Netwo rk Super visor p arameter s . The Wiza rds of ten su gges t use f ul def a ul t set ti ng s whi ch can hel p you sta r t monit or in g y our net[...]

Set ti n g up Ne two rk Sup e rv is or fo r t he First T im e 13 N e t w or k S u p er vi so r colo r -c od es o bje cts t o i n di cate stress leve ls, p r ovidin g an a ccu ra te and eas y- to -r e ad indic atio n o f c ur re nt lev el s o f str es s o n a n y moni tore d obj ect s . A war ni ng zone hel ps y ou pred ic t whe n a dev i ce or li n[...]

14 C HA PTER 2: U SI NG N ETW ORK S UPERVISOR TO M ANAGE Y OU R N ETW ORK There are two steps which ar e used to construct a map of your network. Net w ork Supervisor: 1 Fi nd s th e dev ic es co nne ct ed to yo ur net wor k ( and bui l ds a mo del of eac h one) A ping m essag e is sent by Ne tw ork Sup ervisor t o each IP address in t he ra ng e y[...]

Vi ewi ng the St res s on your N etw ork 15 Reacting to N etwo rk Eve nts W he n y o u s ta rt m o nito ring for t he firs t ti me , y ou ma y st art t o see man y even ts i n the Event Lis t. If the numb er o f events in the lis t appears to be exce ssive , thi s may indicate that the activit y thresho lds set a re t oo low for your ne t work. I f[...]

16 C HA PTER 2: U SI NG N ETW ORK S UPERVISOR TO M ANAGE Y OU R N ETW ORK The sign if icant advantage of having a yel low (w arning) zone is that it gives you a clea r ind i cation t hat a mon i tor i s approaching a serious co ndi ti on. Thi s ma y al lo w yo u t o pred i ct s ome ne two rk pro bl ems b e fore they becom e crit ical . Fo r exampl [...]

Vi ewi ng the St res s on your N etw ork 17 Plain T ext Interpre tation o f a Netw ork Pr oble m A t ext ua l i nter pre tat i on o f a ne t work probl em i s a usef ul s t art in g p o int o r m a y prov ide eno ug h inf ormat ion f o r you to i dent ify and solv e a prob lem. N et w ork S u pe rv iso r p ro vid es t his i nfor mati o n with i ts [...]

18 C HA PTER 2: U SI NG N ETW ORK S UPERVISOR TO M ANAGE Y OU R N ETW ORK The Al l Moni t ors Di alog Bo x (s h own in Fi gure 3 ), l ets yo u : ■ View w hich m onito r s are being used. ■ Ch an ge the thresho lds on each mo nitor . ■ Swit ch m o ni to rs o n or of f. A mon i tor is a sp ecific stress m easure for a n etwork device or li nk. [...]

Man aging and Mani pulating Ev ent s 19 Manag ing an d Manipu l ati ng E vents The N et w o r k S uper visor Event List gr eat ly impro v e s yo ur abili ty to pr io ri t iz e and r eac t to pr oblem s on you r ne two r k . I n tellig e nt E ven t G eneration N etw ork Supe rvisor generates events intell i gen tly . For exam ple, t o prev ent ut i [...]

20 C HA PTER 2: U SI NG N ETW ORK S UPERVISOR TO M ANAGE Y OU R N ETW ORK In t he longer term, the Comment fa cility lets y ou buil d a pro ble m s olvin g dat ab a se fo r y our net wor k whi ch can help you t o s o lv e common prob lem s qui ckl y . Sorting Sor ti ng let s yo u or der e ve nts by the column headin gs o f t he E ve nt Li s t . Fo [...]

Vie wi ng Netw ork T ren d s and Patter ns 21 Vie wing Net work T ren ds and P at t er ns So m e tim es it is he l pf u l to ha v e a n o ver vie w or s t ati s ti c al s u m mar y o f cer ta i n aspec ts of you r n etwor k. Thi s ty pe o f i nf or mat io n i s use f ul f or out l in in g pa t te rns a nd tre nd s i n t he u se o f yo ur n etw o rk[...]

22 C HA PTER 2: U SI NG N ETW ORK S UPERVISOR TO M ANAGE Y OU R N ETW ORK Pl anni ng Y ou r Ne t wor k Ca p ac i t y Y ou can use the Network Capa city Repo rt to ca lc u late the number of por t s available on your network and identify which devices they belong to. Thi s prov id es a power fu l pl anni ng to ol whi c h a ll ows you to qui c kly vi[...]

3 L IV E U PDA TE This chapter describes the features an d benefits of using 3C om ® Ne t wor k Supe r vi sor Li ve Updat e. I t out li nes : ■ About Li ve U p date ■ Usi ng L i ve Up date About Li ve U pda te 3C om N etwork Superv isor Li ve Update pr ovides a method fo r act ively del i ve ri ng cu rr ent hardwa re and s of tw are i nformat [...]

24 C HA PTER 3: L IV E U PDATE T o ensure sec uri ty , some netw orks use a proxy server as an i nterme d iary bet ween th e wor ks tat io n and th e s erv er . If you r de faul t brows er i s usi ng speci f ic proxy set ti ngs, Li ve Upd a te will automati cal l y us e them to c on ne ct t o t he In tern et. Ot h erw ise , y ou w ill nee d t o sp [...]

3COM END USER SO FT WA R E LIC ENSE AG R EEMENT YOU SHOULD CA REFULLY R EAD T HE FOLLO W ING TERMS AND CO N DITIO NS BEFO RE USIN G T HIS PROD UC T. I T CO NTAI NS SOF TWA RE, TH E USE OF WH ICH IS LICE NSED B Y 3C OM CORP ORATI ON (" 3C OM") T O ITS CU ST OMER S F OR THE IR US E ON L Y AS SE T FOR TH BELO W . IF Y OU DO N OT A GR EE T O [...]

GOVERNING LA W This Li cense Agree ment shall be governed b y th e la ws of Eng land . You agree th at the Unite d Nations Co n ve ntion o n Cont racts for the Internati onal Sale of G oods (1980) is h ereby e xcluded in its e ntirety from ap pli c at ion to th is Li c en se Ag r ee me n t . NO W ARRANT Y T HE SOFT WARE AN D RE LAT ED DO CUM E NT A[...]