Gebruiksaanwijzing /service van het product Observer van de fabrikant Network Instruments
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Marc h 2002 Observe r User Manu al Adde ndum 802.1 1b Wireless Install ation & Oper ation.
ii Observer User Manual Addendum (Wi reless) © 2002 by N etwor k Instrum ents, LL C (Limit ed Liabil ity Co rporatio n). All r ights r eserve d. Netw ork Instruments' O bserver for use with Micr o soft W indows 98/M e, W i n dows NT 4.x, W i n d o w s2 0 0 0 ,W i n d o w sX P ,o r g r e a t e rb a s e dc o m p u t e r s .
Cont en ts © Net work Ins tru ment s, LL C iii Hardw are & Sof twar e Suppor t . ..... .. ..... .. ..... ... .... ... .... ... ..... .. .. ..... .. ..... .. ..... ... .... .. 1 Sup ported NI Cs .... .. ..... .. .... .. .. ..... .. .... .. ..... .
iv Observ er User M anual Adde ndum (Wir eless ).
1 Observer ® So ftware and Wireless LAN s An Addendum to the Network Instruments Observer User Ma nual T o use O bs erver in a n 802 .1 1b wireles s env ironm ent, y ou m us t follo w t he i nstructions for custom drive r installation (see below) and Observer setup (see page 6 of this ma nual) .
Ob serv er® So ftwar e an d Wir eles s LANs 2 Obs erve r User Ma nu al Adde nd um (Wir ele ss) T o upd ate the dr iver , fo llo w these s teps : 1. Righ t-cl ick on the ‘My Comput er ’ ic on and choos e Properties . 2. Click t he Hardwa re tab a nd th en th e Devi ce Man ag er .
Ne two rk In str umen ts Cus to m Driv er In stal latio n © Netw ork In s trum e nts , LL C 3 Th e W izard ask s you how you want to update th e driver : 6. Ch oose “Sea rch for a suit able driv er for m y devic e (r ecomme nded) ” and click Next .
Ob serv er® So ftwar e an d Wir eles s LANs 4 Obs erve r User Ma nu al Adde nd um (Wir ele ss) A f ile locator dial og is d ispl ayed: 8. En ter (o r brow se to) the f ollowi ng di rec tory ( assum ing th at C:Obser ver Files is y ou r Ob s erv er dire cto ry) : C:Observer Filesdriverswireless Th e W iz ard dis play s the f ollo wing: 9.
Ne two rk In str umen ts Cus to m Driv er In stal latio n © Netw ork In s trum e nts , LL C 5 10 . Choose th e appr op riat e analy zer dri ver wit h the “N I” pr efix (“NI /Norte l Netwo rks e-mobilit y 802.1 1b W ir eles s LAN PC C ar d,” for example) and click Next.
Ob serv er® So ftwar e an d Wir eles s LANs 6 Obs erve r User Ma nu al Adde nd um (Wir ele ss) Conf igu r ing O bs erve r fo r Wir ele ss Op er atio n Once you hav e installed the wirel ess NIC an d N etwork Instruments’ cu sto m driver , you w ill be able t o see the w ir el ess Probe in the Pro be L ist.
Co nf ig uri ng Obs er ve r f or W ire le ss O p era tio n © Netw ork In s trum e nts , LL C 7 Th e conf igura tio n option s are des cri bed bel ow: Option Descri ption Site P rofiles Sit e Pr o fil.
Ob serv er® So ftwar e an d Wir eles s LANs 8 Obs erve r User Ma nu al Adde nd um (Wir ele ss) Ne w Featu res for Wir ele ss Supp ort In addi tion to de coding and anal yzin g 802.1 1b wir eless LANs (WLANs), Observer has updated a number of statistica l mo des and added some new ones.
New F eatu res f or W ire le ss Sup por t © Netw ork In s trum e nts , LL C 9 A vg Qu alit y (% ) Th e aver a ge sig na l-t o-n oise r at io of t h e sign al, e xp ress ed as a p erc en t- a ge of t he op ti mu m . Avg Data R a te T he a ver age r at e of data pa ck ets on t he wir el es s ne twor k.
Ob serv er® So ftwar e an d Wir eles s LANs 10 Obs erve r User Ma nu al Adde nd um (Wir ele ss) W irel ess Chann el Scan Monitor (New T ool) T he W ir el e ss C ha nn el Sca n Mo nit or s how s act ivi ty by c h an nel s on y our wireless net work. This mo de is a vailabl e on the T ools me n u .
New F eatu res f or W ire le ss Sup por t © N etwork In struments, L LC 11 Net work (W ireless) V ita l S i gns T o start V ital Signs, se lec t Statis tics fro m the m a in m enu , then N etwork V ital Sign s . The W ireless V ital Signs mode shows curre nt wi r eless activit y m apped with cu rr ent wir eless er ror c ondit ion s on your WLAN.
Ob serv er® So ftwar e an d Wir eles s LANs 12 Obs erve r User Ma nu al Adde nd um (Wir ele ss) r ev ealed b y W ireless V ital Sign s, go to Acces s P oint Statis tics, T o p T a lkers , and Errors b y St ation.
New F eatu res f or W ire le ss Sup por t © N etwork In struments, L LC 13 This le ts you imm ed iately see ea ch stat istic in its proper co ntext . For exam ple, an err or rate of 50% is insignifi cant if Observer has onl y analyzed two packets , but q uite significant if thousands of packets have been analyzed.
Ob serv er® So ftwar e an d Wir eles s LANs 14 Obs erve r User Ma nu al Adde nd um (Wir ele ss) Wi rel ess Sp eed s Th is tab show s det ails o f signal strength, qualit y , the o vera ll rate an d data rate, as well a s the packet distributions for di ffer ent rates.
New F eatu res f or W ire le ss Sup por t © N etwork In struments, L LC 15 The Exper t Analysis Wireless Ev ents Button Expert M od e ca n be used in bo th r eal time a nd post-captur e: • For r eal-time analysis , when capturing pac k ets, s elect the V iew ic on fr om Packet Capture.
Ob serv er® So ftwar e an d Wir eles s LANs 16 Obs erve r User Ma nu al Adde nd um (Wir ele ss) The tracked W irel ess Events ar e described below . Note also tha t the Expert Summary n ow displays wir eless events.
New F eatu res f or W ire le ss Sup por t © N etwork In struments, L LC 17 New Filteri ng E nhan cemen ts Y ou can now filter by the wirel ess access point h ardware ad dress in addit ion to th e standar d MAC address a nd IP addre ss fil tering that has al ways been avail able in Obs erver .
Ob serv er® So ftwar e an d Wir eles s LANs 18 Obs erve r User Ma nu al Adde nd um (Wir ele ss) W ir ele ss Obse rv er T ro ub les hoo ting Most p r ob lems w ith w ireless analysis a re the result o f problems un related to the Observer software or its configuration, such as unconfigured or incorrectly configured WE P keys.
NOTES © 20 02 Network In struments, LLC 19.
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Een belangrijk punt na aankoop van elk apparaat Network Instruments Observer (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Network Instruments Observer heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Network Instruments Observer vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Network Instruments Observer leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Network Instruments Observer krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Network Instruments Observer bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Network Instruments Observer kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Network Instruments Observer . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
