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Cisco Systems OL-8376-01 manual

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Table of contents for the manual

  • Page 1

    Corporate He adquarters Cisc o Syst ems , Inc . 170 West Ta sman Drive San Jos e, CA 95 134-1706 USA http://www.ci sco.com Tel: 408 526-4000 800 553- NETS (638 7) Fax: 408 526-4100 F A Q and T r oubleshooting Guide for the CiscoW orks W ireless LAN S olution Engine R ele ase 2 .1 3 Cus tom er Ord er Nu mber: OL -83 76-01[...]

  • Page 2

    THE SPECIFICATIONS AND INFORMATION REGARDING TH E PRODUCTS IN THIS MANUAL ARE SUBJE CT TO CHANGE WITHOUT NO TICE. ALL STATEMENT S, INFORMATI ON, AND RECOMMENDA TIONS IN T HIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRES ENTED WITHOUT WARRANTY OF ANY KIND, EXPRE SS OR IMPLIED. USERS MUST TA KE FULL RESPONSIBILITY FOR THEIR AP PLICATION OF ANY PRO[...]

  • Page 3

    iii FAQ and Trou bleshoo ting Guide for the Cisco Works Wire less LAN Soluti on Engine OL-8376-01 CONTEN TS Preface v Audienc e v Convent ions v Produ ct D ocu ment atio n vi Obtain ing Documentati on vi i Document ation F eedback ix Cisco Pr oduct S ecurit y Overview ix Obtain ing Technical As sistance x Obtain ing Additional Publica tions and In [...]

  • Page 4

    Contents iv FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine OL-8376-01 CHAPTER 2 Fault Desc riptions 2-1 Acce ss P oint /Br idg e Faul ts 2-2 Radio In terface Fault s 2-8 IDS (In t rusion Detect ion Syste m) Faults 2-14 Voice Fa ults 2-24 WLSE Faults 2-24 AAA Server Faults 2-26 Switch Fa ults 2-31 Router Fault 2-33 WLS[...]

  • Page 5

    v FAQ and Troub leshoot ing Guide fo r the Ci scoWorks Wi reless LAN Solu tion Engi ne OL-8376-01 Preface This gui de provides troub lesho oting hints, F A Qs, and info rmat ion on faults fo r the Cisco W o rks Wireless LAN Solut ion Engine and Wireless LAN Engine Express. This gu ide consist s of the fo llowing chap ters: • F A Qs and T roublesh[...]

  • Page 6

    vi FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Preface Product Docu mentatio n Cautio n Means re a d e r b e c a re f u l . In this situation, you might do something that cou ld result in equipment dam age or loss of data. Product Docume ntation Note W e someti mes updat e the docu menta tion afte r[...]

  • Page 7

    vii FAQ and Troub leshoot ing Guide fo r the Ci scoWorks Wi reless LAN Solu tion Engi ne OL-8376-01 Pre face Obtaining Documentation Obtaining Documentation Cisco d ocumenta tion and a ddition al lite rature are av ailable on Cisc o.co m. Cisco also provides s ev eral ways to obtain tec hnical assi stance an d other tec hnical re sources. These sec[...]

  • Page 8

    viii FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Preface Obtaining D ocument ation Cisco.com Y ou can access the mo st curren t Cisco documen tation at this U RL: http://www .cisco.com/tec h support Y ou can access th e Cisco w ebsite at this URL: http://www .cisco.com Y ou can access in ternational[...]

  • Page 9

    ix FAQ and Troub leshoot ing Guide fo r the Ci scoWorks Wi reless LAN Solu tion Engi ne OL-8376-01 Pre face Documentati on Feedba ck Documentatio n Feedback Y ou can rate an d pro vide fe edback abo ut Cisco techni cal document s by co mpleting the online feedbac k form that appears with the te chnical documents on Cisc o.com. Y ou ca n send com me[...]

  • Page 10

    x FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Preface Obtaining Te chnica l Assistance Ti p W e encourage you to use Pretty Good Pri vac y (PGP) or a compatible p roduct to encrypt a ny sensiti ve information that you send to Cisco. PSIR T can work from encrypted informatio n that is compatible with[...]

  • Page 11

    xi FAQ and Troub leshoot ing Guide fo r the Ci scoWorks Wi reless LAN Solu tion Engi ne OL-8376-01 Pre face Obtaining Additional Publications and Information Submitting a Se rvice Request Using the online T A C Service Re quest T ool is the fastest w ay to op en S3 and S4 service requests. (S3 and S4 ser vice request s are those in wh ich you r net[...]

  • Page 12

    xii FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Preface Obtaining A dditional Pub lications and Informa tion • Cisco Pre ss publishes a wide range o f general networkin g, training and cer tifi cation titles. Bot h new and e xperienced user s will benef it from these public ations. F o r current C[...]

  • Page 13

    C HAPTER 1-1 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 1 FAQs and Troubleshooting Revised: June 20, 2006, OL-8376 -01 This chapt er provides F A Qs and trou bleshoo ting h ints for all W LSE f unctions. This cha pter is organi zed as follows: • General Ques tions—Informat ion that is general i[...]

  • Page 14

    1-2 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting General FAQ s and Tro ubleshoo ting • Q.Which po rts and protocol s does the WLSE use ? • Q.Which tra nsport pro tocols and au thentica tion meth ods does WLSE use ? • Q.Can I use a different HTTP port to mana[...]

  • Page 15

    1-3 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting General FAQs and Tr oublesh ooting Q. Can SSH be disable d? A. It cannot be disabl ed on the WLSE itself, b ut you can use the fire wall command to den y all SSH connecti ons. For example, th e follo wing CLI command[...]

  • Page 16

    1-4 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting General FAQ s and Tro ubleshoo ting A. Upgrad ing your WLSE will no t disru pt ser vice on your a ccess points. T he APs conne ctivity will remain intact an d the WLAN will functio n normally . General Tr oubleshoot[...]

  • Page 17

    1-5 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting General FAQs and Tr oublesh ooting Sympto m When I t ry to a ccess an access point we b page thr ough t he WLSE, the fo llowing error me ssage appe ars: Ac tion Can cel led. Possible Cause The SNMP user on the acc es[...]

  • Page 18

    1-6 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting General FAQ s and Tro ubleshoo ting Sympto m After the WLSE 1 130 seri es starts u p, th e setup login prom pt appe ars. Aft er you use the setu p program , th e WLSE cann ot con nect t o the networ k. Possible Caus[...]

  • Page 19

    1-7 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting General FAQs and Tr oublesh ooting 5. If no c onditio ns are preventing the system from c onnectin g to t he networ k, conta ct Cisc o’ s T ech nical Assista nce Cen ter . Sympto m Cannot c onnect to the WLSE usi n[...]

  • Page 20

    1-8 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting General FAQ s and Tro ubleshoo ting Sympto m The system time or date is incor rect. Possible Cause – NTP is misconfigured. – The system c lock is set incorrectly . Recommended Ac tion Mak e sure NTP is conf igur[...]

  • Page 21

    1-9 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting General FAQs and Tr oublesh ooting 2. If you have specif ied hosts using the telnetenable CLI co mmand, ma ke sure the host from which you are attem pting to T elnet is o n the list. 3. If you are using a DN S server[...]

  • Page 22

    1-10 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Deploymen t Wizard Troub leshoot ing Sympto m After pe rform ing certa in operat ions on the WLSE , such as clic king App ly in the Disp lay Faults page, th en cl icking the cl ient br owser Refresh button, a pop-u[...]

  • Page 23

    1-11 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Faults FAQs an d Troublesh ooting Sympto m Access points do not get the e x pected conf iguration applied fro m a W izard templa te. Possible Cause An auto-managed conf iguration template e xists that is assigned to[...]

  • Page 24

    1-12 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Faults FAQ s and Troubl eshooti ng b. Chan ge the F ault Hist ory T runcati on Int erv al parame ter to redu ce the num b er o f days th e cleared faults ar e sav ed. Q. Why didn’ t the fault color on the de vice[...]

  • Page 25

    1-13 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Faults FAQs an d Troublesh ooting A. Y e s. For more detaile d inform ation on which p olicie s can repor t trap s (RF Port Sta tus an d RF Port Admin Status) to the WLSE and how to set it up, see the online help or[...]

  • Page 26

    1-14 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Faults FAQ s and Troubl eshooti ng Sympto m After a dding an AAA serv er to a WLSE, the f ault ‘ AAA serv er is Not a vail able’ is generated for that AAA serv er . Possible Cause Ther e are several re asons fo[...]

  • Page 27

    1-15 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Devices FAQs and Tr oubleshoot ing Sympto m SNMP Unreac hable f aults are displaye d more fr equently than the s et p ollin g interv al. Possible Cause When the WLSE polls f or an y faults, it a lso checks if the de[...]

  • Page 28

    1-16 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Devices FA Qs and Troublesh ooting Q. What is an in valid CDP seed? A. An inv al id seed is a device that does no t ru n Cisco Discovery Prot ocol ( CDP), suc h a s a PC or worksta tion). Such a de vice does not fu[...]

  • Page 29

    1-17 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Devices FAQs and Tr oubleshoot ing Devices Troubl eshooting This se ction conta ins the following trouble shoot ing in formati on: Disco very/Devi ce Managem ent Tr oublesh ooti ng • Symptom De vices were disco ve[...]

  • Page 30

    1-18 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Devices FA Qs and Troublesh ooting Sympto m There is a time di screpa ncy in the schedul ed di scovery jobs. Possible Cause The local or system time is not set correctly on the WLSE. Recommended Ac tion a. Reset th[...]

  • Page 31

    1-19 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Devices FAQs and Tr oubleshoot ing Sympto m An IO S access p oint c onfigured with a n iee802 dot11 view is not d iscovered. Possible Cause The commu nity st ring should be co nfigured w ith a n ISO v iew . Recommen[...]

  • Page 32

    1-20 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Devices FA Qs and Troublesh ooting Sympto m After c reating a cu stomiz ed device na me form at, trunca tion o f device name s in disp lays suc h as device trees makes it diff icult or imp ossible to disti nguish o[...]

  • Page 33

    1-21 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Confi guration FAQs an d Troubleshoot ing Sympto m AP 1230 and A P 1231 are no t sho wn in WLSE displays. Possible Cause These APs ha ve the same sysOb jectID as the AP 12 10. Recommended Ac tion Check t he AP 1 210[...]

  • Page 34

    1-22 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Configuration FAQs an d Troubles hooting • Q.Can I give a configuration job a nam e that is used for a firmware or ra dio manage ment jo b? • Q.Why do I get the fol lowing error mes sage wh en I upload a co nfi[...]

  • Page 35

    1-23 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Confi guration FAQs an d Troubleshoot ing A. The two configur ation s are merged un less you have specified that you want to overwrite t he existing configurati on wh en you r an the job . If you select Apply T empl[...]

  • Page 36

    1-24 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Configuration FAQs an d Troubles hooting Q. What is star tup configurat ion templ ate? Startup c onfiguration t emplate is used right after a de vice (access po int) rebo ots. It requires D HCP server to be properl[...]

  • Page 37

    1-25 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Confi guration FAQs an d Troubleshoot ing Configuration Troubles hooting This section pro vides the follo wing troubleshooting inform ation: • Symptom Wh en I pe rform a con figuration update to t he start up-conf[...]

  • Page 38

    1-26 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Configuration FAQs an d Troubles hooting Sympto m A conf iguration job f ails using a template imported from an IOS access point. Possible Cause It has comm ands such as powe r loca l 100 that cau se it t o fail. R[...]

  • Page 39

    1-27 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Firmware FAQs an d Troublesh ooting Sympto m An SC P jo b fail s wi th us erna me h av ing 15 pr ivil e ge. Possible Cause If the de vice is ha ving the follo wing conf iguration: aaa new-model no aaa aut henticat i[...]

  • Page 40

    1-28 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Firmware F AQs and T roublesho oting Q. What kinds of j ob logs are available? A. There ar e two kinds of job logs: Job run log and the jobvm log. • The job run log is whe re events are l ogged for a pa rticul ar[...]

  • Page 41

    1-29 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Firmware FAQs an d Troublesh ooting Sympto m When uplo ad ing an ima ge to an acce ss point from a fr om a remo te T FTP server, the ac cess point reports an In valid checksu m error o r Unkno wn failure. Possible C[...]

  • Page 42

    1-30 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Firmware F AQs and T roublesho oting For more inf ormat ion on u pdatin g firmware, see the User Guide for the CiscoW orks W ir eless LAN Solutio n Engin e, 2.13 . Y ou can ac cess a PDF version of this gui de by c[...]

  • Page 43

    1-31 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Report s FAQs and Troub leshoot ing Reports FAQs and Troubleshootin g • Reports F A Qs, pa ge 1-31 • Reports T rouble shooting , page 1-32 Reports FAQs Q. When does data for the repor ts get aggregated ? A. The [...]

  • Page 44

    1-32 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Reports FAQs and Trou bleshoot ing A. The As Of column i ndicates th e startin g time of th e aggre gation for the utilizati on report . Therefor e, the starting time show n might be earlier than the dat e range se[...]

  • Page 45

    1-33 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Report s FAQs and Troub leshoot ing Sympto m The T op N Busiest Clients report and the Client Statistics re port display 0 (zero) v alues. Possible Ca use W ireless client polling freq uency is se t to 51 minut es b[...]

  • Page 46

    1-34 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Reports FAQs and Trou bleshoot ing Sympto m After runn ing a job, t he upd ate d data doe s not a ppea r in a rep ort. Possible Ca use A f ull polling c ycle has not c ompleted and th e ne w data has not been en te[...]

  • Page 47

    1-35 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Radio Man ager FAQs and Troubl eshooti ng Possible Cau se This is because th e very first aggregations ar e based on da y and time th at the WLSE’ s system softw a re w as installed, a nd the form ula for co mputi[...]

  • Page 48

    1-36 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Radio Manage r FAQs an d Troubles hooting Auto Re-Site Survey • Q.Is th ere a limit to the number o f floors or acce ss points th at can be enabled for the auto re-site survey? • Q.W ill it cause problems if a [...]

  • Page 49

    1-37 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Radio Man ager FAQs and Troubl eshooti ng Q. What is the t hrough put impa ct i f Radi o Moni toring is ena bled? A. Each A P scans al l support ed non-se rving ch anne ls every 90 seconds. Each non -servin g chan n[...]

  • Page 50

    1-38 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Radio Manage r FAQs an d Troubles hooting Y ou use Assi sted Sit e Survey to gen erate y our power settin gs and apply the fol lowing power settin gs (resp ectiv ely): {5,1 0,20,5 } AP C goes down and Self Healing [...]

  • Page 51

    1-39 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Radio Man ager FAQs and Troubl eshooti ng The radi o in quest ion is det ecting a large am ount of neighbor ing radios. If a radio is de tecting t oo many other radio beac ons (th e warning message incl udes the tot[...]

  • Page 52

    1-40 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Radio Manage r FAQs an d Troubles hooting Q. Why does the Cli ent MA C Spoofing fault reappe ar aft er it has been cleared? A. The WLSE ra ises faults for all clients id entified by MIB ciscoW dsIdsMac SpoofCli ent[...]

  • Page 53

    1-41 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Sites FAQs an d Troublesh ooting Sympto m My clients are not bein g authenticated through WDS. Possible Cause Y ou have not created a server g roup on the WDS for client au thentication. Recommended Acti on T o crea[...]

  • Page 54

    1-42 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Sites FAQs and Tr oubles hooting • Q.When I sel ect devices in the Assisted Site Survey Wizard, why a re some shown in red? • Q.When I’m us ing the Assisted Sit e Surve y W izard, wh y is the Ne xt bu tton di[...]

  • Page 55

    1-43 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Sites FAQs an d Troublesh ooting Q. Why d oes L ocation Manag er sho w a cove rag e map for an AP ba sed o n th e co nfigured t ransmi t power setting even when the radi os are shut dow n? A. If you did n ot sele ct[...]

  • Page 56

    1-44 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Sites FAQs and Tr oubles hooting Q. When I’m usin g the Assis ted Site Surv ey W izard, why is the Next b utton disab led af ter I comp lete step one? A. Y ou ha ve not select ed any ac ceptable de vices that are[...]

  • Page 57

    1-45 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Sites FAQs an d Troublesh ooting Q. In the Constr aints and Goals step in the A ssisted Site S urve y W izard, ho w do I select multiple channels in the chann el list? A. For Wi n do ws users, control-click on the c[...]

  • Page 58

    1-46 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Sites FAQs and Tr oubles hooting Radio Parameter Generation Q. When WLSE is trying t o calculate ne w radio parameter generations, why d o I get an error about walkabou t locations? A. Before WL SE can gener ate ra[...]

  • Page 59

    1-47 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Sites FAQs an d Troublesh ooting Sympto m It tak es a v ery long time to import a building or flo or image in to Loca tion Ma nager . Possible Cause The resolutio n and pix el size of t he image f ile is v ery lar g[...]

  • Page 60

    1-48 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Sites FAQs and Tr oubles hooting There are q uite a fe w r easons wh y an inte rface might be remo ved from the scan. The WLSE exa mines each interf ace sepa rately; af ter that , if al l interf aces ha ve been r e[...]

  • Page 61

    1-49 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Intru sion Detect ion System FAQs and Tr oubleshooting Intrusion Dete ction System FAQs and Troublesho oting • Intrusion De tection System F A Qs • Intrusion Detec tion Sy stem Troubleshoo ting Intrusion Detecti[...]

  • Page 62

    1-50 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Intrusion De tection System F AQs and Trouble shootin g Dete cting Rog ue APs Q. How does WLSE detect rogue APs ? A. Here i s a b rief su mmar y of t he ro gue AP detec tion logic: a. A rogue AP appear s and starts[...]

  • Page 63

    1-51 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Intru sion Detect ion System FAQs and Tr oubleshooting WLSE consi ders hardware , both clien t and access poin ts, to be truste d sources, an d assumes tha t vendors are repor ting the field corre ctly . WL SE expec[...]

  • Page 64

    1-52 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Intrusion De tection System F AQs and Trouble shootin g Q. I understa nd that WLSE does not accept SNMP trap s that indicat e an AP detected a rogue. So why is an A P that is cu rrently d esignat ed as the WD S gen[...]

  • Page 65

    1-53 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Intru sion Detect ion System FAQs and Tr oubleshooting – First, a rogue is detected which has an RSSI value higher than the configur ed thresh old. For exa mple, it has an RSSI va lue of -60dBm and the conf igured[...]

  • Page 66

    1-54 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Admin FAQs and Troub leshooting A. When the Frie ndly-t o-Rogue pol icy e valuat es a site, any device that hasn’t been seen in “too long a time” is reclassified as rogue . This time pe riod star ts when WL S[...]

  • Page 67

    1-55 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Admin FAQs and Tr oublesh ooting • Q.Can I restore a b ackup th at I made on a WL SE run ning be ta sof tware to a WLSE runnin g rele ased software? • Q.Can I rest ore a backup fro m a WLSE 110 5 to a WLSE 1130 [...]

  • Page 68

    1-56 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Admin FAQs and Troub leshooting Check the statu s by using the CLI command redu ndancy statu s, or by sel ecting Admin > A ppliance > Redundancy > Redundancy Status . On the master DN S server , m ake sur [...]

  • Page 69

    1-57 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Admin FAQs and Tr oublesh ooting Admin Troubles hooting This se ction conta ins th e fo llowing inform ation for troubl eshoo ting the app liance : • Symptom A fter add ing users to an extern al au thentic atio n [...]

  • Page 70

    1-58 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Admin FAQs and Troub leshooting • Symptom Cannot back up WLSE conf iguration to a remote serv er when using the secure f ile transf er option. • Symp tom The A CS F ailed L ogin Re port l ink i s mi ssin g. •[...]

  • Page 71

    1-59 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Admin FAQs and Tr oublesh ooting Sympto m When using I nternet Explo rer 6.0 to in stall a ne w image on a WLSE from a r epository loca ted on a W indo ws XP machine , the progress ba r does not ap pear in the In st[...]

  • Page 72

    1-60 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Admin FAQs and Troub leshooting Possible Cause At e ach in stance of synchr onization and fai lover , th e stand by AAA RA DIUS ser ver goes down, there by triggeri ng the “ HA stand by AAA rad ius server not av [...]

  • Page 73

    1-61 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 1 FAQs and Troublesh ooting Admin FAQs and Tr oublesh ooting b. T eln et or SSH into the acti ve 2.13 syste m and e xecu te the CLI com mand rel o ad . W ait until the reload is compl ete. c. T elnet or SSH into th e standby 2.13 syste m and e[...]

  • Page 74

    1-62 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapte r 1 FAQs and Trouble shooting Internal AAA Ser ver (WL SE Express Only) FAQ s and Tro ubleshoo ting Consolidating and Saving Log Files The dum ptech CLI comm and cal ls the diagnostic-info and ta rlog commands, tars thei r output to an archive [...]

  • Page 75

    C HAPTER 2-1 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 2 Fault Descriptions This section p rovides th e follo wing information on the f aults displayed in Faults > Display Faults . The follo wing information is provided: • Fau lt—The f ault as it appear s in the Display Faults t able. • E[...]

  • Page 76

    2-2 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Acces s Point /Bridge Fa ults Access Point /Bri dge Faults T able 2-1 Access P o int F aults Fault Description Explanation Related Setting Recommended Action Access point ssid reclass ifie d from Friendly to Rogue due to ru[...]

  • Page 77

    2-3 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Access Point /Bridge Faults AP CPU utiliz ation is Over loaded ( utilization %) The fault thre shold set for the overload ed s tat e ha s bee n exce eded . When this fau lt has been clea red, the following message disp la[...]

  • Page 78

    2-4 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Acces s Point /Bridge Fa ults Device was not reachab le via SNMP The SN MP Ag ent could be down. Using the SNMP threshold setting, you configure t he WLSE to poll th e sysUpT ime MIB object p eriodically . If at an y time t[...]

  • Page 79

    2-5 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Access Point /Bridge Faults Etherne t ban dwidt h utilization is De graded ( utilization %) The fault thre shold set for the de grade d state has been e xcee ded. When this faul t is cleared, the follo wing mes sage disp [...]

  • Page 80

    2-6 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Acces s Point /Bridge Fa ults HotSta ndBy is act iv e The acce ss point that is configure d for ho t sta ndby has bec ome a ctiv e. The fo llowing co nditions coul d caus e the hot st andby access po int to become acti ve: [...]

  • Page 81

    2-7 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Access Point /Bridge Faults MIC i s di sabled for the VLAN number MIC is not en able d for the s elect ed VLAN on the access point. When the fault is cleared, th e following message disp lays: MIC is enabled. Manage Fault[...]

  • Page 82

    2-8 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Radio Interfac e Faults Radio Interface Faults WEP is disabled WEP is not enabled for the VLAN defined on the access poi nt. (Note that the V LAN nu mber is displa yed in the T ype column under Faul ts > Display F aults.[...]

  • Page 83

    2-9 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Radio Interface Faults Appe ared up|down. Compe nsated fo r b y Up/Down radi o(s). The indi cated radio ap peared up or down on this AP , so other radi os were modif ied to maintain cove ra g e. After self h ealing has be[...]

  • Page 84

    2-10 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Radio Interfac e Faults Compensation calcu lation di d not compl ete due to errors Errors for ced the cance llation of Self Healing compensatio n calculation s. Not applicable. Displ ay the Self Healin g fault deta ils pag[...]

  • Page 85

    2-11 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Radio Interface Faults No t Mo ni tore d be c aus e: re a s o n , Ig nored T o qualify for Self Heal ing, an AP must : • Enable Radio Monitor ing on both Se rving an d Non-Ser ving channe ls. • Be co nfigured with a [...]

  • Page 86

    2-12 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Radio Interfac e Faults Port is do wn The port is operatio nally do wn. When this faul t is cleared, the follo wing message displays: Port is up Manage Fault Settings > Radio-8 02.11x Thresholds > RF Port Admi nSta t[...]

  • Page 87

    2-13 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Radio Interface Faults Retr y Count rate is Degr aded number per minute The retry count ra te alarm indicates if t he wireless medium is congeste d. The alarm will be raised if the MSDU retransmission rate per min ute is[...]

  • Page 88

    2-14 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions IDS (Intrusi on Detect ion Syst em) Fau lts IDS (Intrusion Detection System) Faults WEP Error is in Degr aded sta te ( error rate %) The fault thre shold set for the de grade d state has been e xcee ded. When t his f aul t[...]

  • Page 89

    2-15 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons IDS (Intrusion Detection System) Faults Ad-h oc ne twor k ssid recla ssified f rom Friendly to Rogue due to rule An a d-hoc network t hat was prev iously determ ined to be Friendly has been rec lassif ied to Rogu e. ssi [...]

  • Page 90

    2-16 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions IDS (Intrusi on Detect ion Syst em) Fau lts Bad MI C while MF P enabled This faul t is raised ag ainst the AP that is ob served genera ting t he viol ati on. Not applic able. In vestig ate the possibility that a rogue A P [...]

  • Page 91

    2-17 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons IDS (Intrusion Detection System) Faults Client a u thent ication er ror rate is Degra ded number per m inute The fault thre shold set for the de graded sta te has be en exc eeded. When this faul t is cleared, the followi[...]

  • Page 92

    2-18 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions IDS (Intrusi on Detect ion Syst em) Fau lts Excessive A ssociation Frames in Channel: channel [Fr ames: framecount ,Interv al: wind owsize ] The fa ult thr esholds been exce eded. When this faul t is cleared, the following[...]

  • Page 93

    2-19 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons IDS (Intrusion Detection System) Faults Excessive D isassociatio n Frames from ST A: station [Fram es: framecount ,Interv al: wind owsize ] The fa ult thr esholds been exce eded. When this faul t is cleared, the followin[...]

  • Page 94

    2-20 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions IDS (Intrusi on Detect ion Syst em) Fau lts Number of CCM P Replay Discar ded is Degra ded. The fault thre shold set for the de grade d state has be en exc eeded. When the fault is cleared, th e following message displays:[...]

  • Page 95

    2-21 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons IDS (Intrusion Detection System) Faults Number of TKIP Loca l MIC failures is De graded. The fault thre shold set for the de graded sta te has be en exc eeded. When the fault is cleared, th e following message displays: [...]

  • Page 96

    2-22 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions IDS (Intrusi on Detect ion Syst em) Fau lts Radi o Role m ust be “roleSc anner” to sup port Frame Monitor ing (was x ). This f ault is raised when a rad io is initially con figured for Frame Moni toring (w here x is th[...]

  • Page 97

    2-23 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons IDS (Intrusion Detection System) Faults Unregis tered Clien t(s) present One or mo re u nregister ed cl ients hav e been d etected i n the wir eless network, and a re unsuc essfull y attempting to authent icate w ith the[...]

  • Page 98

    2-24 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Voi ce Faul ts Voice Faults WLSE Faults Ta b l e 2 - 4 V o i c e F a u l t s Fault Description Explanation Related Setting Recommended Action V oic e Bandw idth Exceede d [Bandwidth I n Use: current %,Threshold: thr eshold[...]

  • Page 99

    2-25 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons WLSE Fau lts Duplicate IP Detectio n During disco very , an AP w ith a dupli cate IP is found an d place d in the D uplicat e IP fold er unde r De vice s > Ma naged > Manage/U nmanage. This fol der conta ins acce s[...]

  • Page 100

    2-26 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions AAA Server F aults AAA Server Faults Other no de is runn ing a dif ferent v ersion . Red undan cy will be turned of f. A mismatch of WLSE software version has be en detect ed betwee n the acti ve and th e standb y WLSEs. N[...]

  • Page 101

    2-27 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons AAA Server Faults EAP-F AST server is not av ailable EAP-F AST Can be cause d by an y of the following reas ons: • WLSE IP Address is not conf igured as a N AS on the server . • Shared secr et ke y does not m atch t [...]

  • Page 102

    2-28 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions AAA Server F aults EAP-MD5 ser ver is Degr aded EAP-M D5 The fa ult thr eshold set for the de graded st ate has bee n exce eded. Wh en th is fault has bee n cleare d, the fol lo wing message displays: EAP-MD5 s erv er is O[...]

  • Page 103

    2-29 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons AAA Server Faults LEAP s erv er is Over loaded LEAP The fault thr eshold set for the overloade d state has been e xceeded. Wh en th is fault has bee n cleare d, the fol lo wing message displays: LEAP serv er is OK . Mana[...]

  • Page 104

    2-30 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions AAA Server F aults PEAP server is Over loaded PEAP The fault threshold set for the overloade d state has been e xceeded. Wh en th is fault has bee n cleare d, the fol lo wing message displays: PEAP serv er is OK Manage Fau[...]

  • Page 105

    2-31 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Switch Fau lts Switch Faults Ta b l e 2 - 7 S w i t c h F a u l t s Fault Description Explanation Related Setting Recommended Action CPU utilizati on is Degr aded ( utilization %) The fau lt threshold set for the de grad[...]

  • Page 106

    2-32 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions Swit ch Faults Port is down . The port is operationally do wn. When this f ault is cle ared, the following message displays: Port is UP . Manage Faul t Setti ngs > Swi tc h > Po rt Sta tus Check the switch to determi[...]

  • Page 107

    2-33 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Solution E ngine OL-8376-01 Chapter 2 Fault De scripti ons Router Fault Router Fault WLSM Faults T able 2-8 Router F ault Fault Description Explanation Related Setting Recommended Actio n Device was not reachab le via SNMP The SNMP Agent on the switch is do wn. When this fault h[...]

  • Page 108

    2-34 FAQ and Troub leshooting Guide f or the Ci scoWorks Wirele ss LAN Soluti on Engine OL-8376-01 Chapter 2 Fault Descriptions WLSM Faults[...]

  • Page 109

    IN- 1 FAQ and Trou bleshoo ting Guide for the Cisco Works Wire less LAN Soluti on Engine OL-8376-01 INDE X A AAA serv er AAA server not ava ilable fault, falsely genera ted 1-60 internal ( WLSE Express) 1-62 name, displ ay of 1-21 AAA se rver, external fault descriptio ns 2-26 AAA serv er, in ternal fault descriptio ns 2-26 acces s point as AAA ser[...]

  • Page 110

    Index IN-2 FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine OL-8376-01 B backup (WL SE) backup to remote server with SCP 1-59 backup t o Windows serve r 1-59 restorin g from beta so ftwar e 1-55 restorin g from W LSE 1 105 1-55 bootin g (WL SE) cannot boot from ha rd drive 1-8 from rec overy CD 1-9 bridge template, for [...]

  • Page 111

    IN- 3 FAQ and Trou bleshoo ting Guide for the Cisco Works Wire less LAN Soluti on Engine OL-8376-01 Index devices FAQs 1-15 hostnam e, n ot u pdated 1-15 IP a ddress c hange, not disp laye d 1-20 not displaye d after discove ry 1-17 sysContact not updated 1-15 sysLocati on not updated 1-15 troublesh ooting 1-17 discovery CDP disabled 1- 16 devices [...]

  • Page 112

    Index IN-4 FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine OL-8376-01 Display Faults screen , refresh rate 1-12 Display Fault view, blank 1-14 FAQs 1-11 HA Standby AAA RADIUS server Not Availab le fault 1-59 notificat ion failure 1-14 notificat ion failure, low- priority fa ults 1-14 notificat ions 1-12 polling in terv[...]

  • Page 113

    IN- 5 FAQ and Trou bleshoo ting Guide for the Cisco Works Wire less LAN Soluti on Engine OL-8376-01 Index fault descriptio ns 2-14 interfer ence dete ction settings 1-53 rogue A P, cove rage p robl ems ca used by 1-51 rogue AP, generation of SN MP traps 1-52 rogue AP detec tion, fr eque ncy of rogue A P detection, frequency of 1-51 rogue AP det ect[...]

  • Page 114

    Index IN-6 FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine OL-8376-01 O operating system, on W LSE informa tion about 1-3 P pass words (WLS E), rule s for 1-55 ports used by WLSE 1-2 R radio inter ference, fault descri ptions 2-8 radio mana ger FAQs 1-35 fault descriptio ns radio interfer ence 2-8 jobs, nam e of 1-39 r[...]

  • Page 115

    IN- 7 FAQ and Trou bleshoo ting Guide for the Cisco Works Wire less LAN Soluti on Engine OL-8376-01 Index Group Clie nt Associa tion repor t, differe nt data from Curre nt Client Associ ations report 1-33 Group Perfor mance Re port on RF Utilizatio n 1-31 group repo rt for a user- defined gr oup, empty 1- 33 Historical Associations repor t, data in[...]

  • Page 116

    Index IN-8 FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine OL-8376-01 genera l 1-4 T Telne t on WLSE, disable d by default 1-2 troublesh ooting FAQs 1-1 hints Admin ta b 1-57 configuratio n, access points 1-25 Depl oyment W iza rd 1-10 Devi ces tab 1-17 faults tab 1-13 firmw are 1-28 genera l 1-4 radio mana ger 1-40 re[...]

  • Page 117

    IN- 9 FAQ and Trou bleshoo ting Guide for the Cisco Works Wire less LAN Soluti on Engine OL-8376-01 Index WLSE-WDS authen tication failed 1-41 WLSM discovery log errors 1-20 fault descriptio ns 2-33 manageme nt of multi ple subnet s 1-36[...]

  • Page 118

    Index IN-10 FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine OL-8376-01[...]