Manuel d'utilisation / d'entretien du produit SG200 du fabricant Cisco Systems
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Cis c o Small Busine s s S G200 S erie s 8-p or t Sm ar t Switche s ADMINISTR A TION GUIDE.
Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 2 Con t e n ts Chapter 1: Getting Started 8 Starting the Web-Based Swit ch Configuration Utility 8 Launching the Utility 9 Logging In 9 Logging.
Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 3 Con t e n ts Adding IPv6 Addresses 36 IPv6 Default Router Table 37 Viewing and Adding IPv6 Neighbors 38 Managing User Accounts 39 Adding a Us.
Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 4 Con t e n ts Downloading an Image or Boot Code File Using TFTP 71 Downloading an Image or Boot Code File Using XMODEM 72 Rebooting the Switch.
Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 5 Con t e n ts Configuring VLAN Inte rface Settings 104 Changing the Interface VLAN Mode 106 Configuring VLAN Membership 108 Configuring Port t.
Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 6 Con t e n ts Configuring MAC Address Group Port Membership 135 Configuring Gr oup-to-Port 135 Configuring IGMP Snooping 136 Configuring MLD S.
Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 7 Con t e n ts Modifying Port PAE Capabilities 159 Configuring Port Authentication 160 Configuring Supplicant Port Authentication 162 Displayin.
1 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 8 Get ting St ar te d This chapter pr ovide s an intr oduction to the web-b ased switch configuration utility and include s the f ollowing to.
Get ting Star ted Star ting the W eb -Bas ed Switch Configur ation Ut ilit y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 9 1 La unching the Utilit y T o open the web -based swit ch c onfiguration utility: STEP 1 Open a web browser .
Get ting Star ted Star ting the W eb -Bas ed Switch Configur ation Ut ilit y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 10 1 Select D on’t show this page on star tup to pr event the Get ting S tar te d page from being displayed each time that you logon t o the system.
Get ting Star ted Quick Star t Devic e Configur ation Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 11 1 Quick Star t D evic e Co nfigura tion T o simplify device configuratio n through quick na vigation, the Get ting S tar te d page provides links t o the mo st commonly-use d pages .
Get ting Star ted W indow Naviga tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 12 1 Window Na vigation This section de scribes the f eatur es of the web -based switch configuration utility. Applic a tion He ader The Application Header is displa yed on every page.
Get ting Star ted W indow Naviga tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 13 1 O ther Res ourc es Y ou can use the f ollowing links on the Getting Star ted page f or additional inf ormati on and assistanc e with using your swit ch: • Suppor t —Displa ys the suppor t web page f or Cisco Small B usiness Managed Switches .
Get ting Star ted W indow Naviga tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 14 1 Na viga tion Window A navigation window is locat ed on the left side of each page.
Get ting Star ted W indow Naviga tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 15 1 Select the number of table entries to displa y on each page. Indicates a mandat or y field. Add Click t o display the r elated Add page and add an entr y t o a table.
Get ting Star ted W indow Naviga tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 16 1 Cop y Sett i ng s A table typically c ontains one or more entries containing configurat ion sett ings.
Get ting Star ted W indow Naviga tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 17 1 Sort b utto ns If the This table is sor table mes sage app ears below a table, each column heading is a sor t button. Click a colu mn he adi ng t o sort the r ecor ds in asce nd in g o r der , base d on the contents of the select ed column.
2 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 18 Viewing Sta tistic s This chapter describe s how t o displa y switch statistics . It contains the f ollowing t opics . • System Su mmar y • Interfac e Statistics • Etherlik e Statistics • 802.
Viewing Statistic s Syst em Summar y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 19 2 • System Con tact —Name of a contact pers on. Click Edit to d isp lay th e Sys tem Settin g s page and ent er this value. ( The characters ', ", %, and ? ar e not suppor ted.
Viewing Statistic s Syst em Summar y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 20 2 Language Pack T able This table displays inf ormation ab out th e languages available on the swit ch. A language can be sele ct ed by the administ rator when logging into the configuration utilit y .
Viewing Statistic s Syst em Summar y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 21 2 • Por t — The Internet As signed Numbers Authorit y (IANA) por t number f or the ser vice. • IP Addres s — The I P add res s , if any , of a rem ote de vic e th at is co nne cted to this ser vic e on the switch.
Viewing Statistic s Inte r fac e S tati stic s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 22 2 Inter face St a tistic s Use the Int e r f a ce page to displa y statistics f or received and transmit ted packets.
Viewing Statistic s Et he rl i ke St at ist ic s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 23 2 Etherlik e St a tistic s The system collects and r epor ts statistics on por ts and LAGs in acc or d ance with RFC2665. T o display this page, click Statu s and Statistics > Etherlik e in the navigation window .
Viewing Statistic s 802 . 1 X E AP Statistics Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 24 2 802. 1 X E AP St a tistic s The switch port s can be configured t o use the IEEE 802. 1 X Extensible Authentication Pr otocol (E AP) to control network acces s (see 802.
Viewing Statistic s IPv6 DHCP Statis tic s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 25 2 IP v 6 DHCP Sta tistic s The switch can be configured to allow mana gement over an IPv6 inter face, and to r ec eive its management IPv6 addres s thr ough the Dynamic Host Configuration Prot o col (DHCP v6).
Viewing Statistic s RAD IU S S t a ti s t i cs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 26 2 R ADIUS St a tistic s The switch can be configured t o communicate with a RADIUS s er ver f or us er authentication.
Viewing Statistic s RMON Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 27 2 RMON RMON (Remote Networ king Monitoring) is an SNM P specification that enables an SNMP agent in the switch t o monitor traffic statistics over a given period and send traps to an SNMP manag er .
Viewing Statistic s RMON Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 28 2 • Multic ast Pack et s Rec eive d —Goo d multicast packets r e ceived on the interface sinc e the swit ch was last refr eshed. • CRC & Align Errors —CRC and Align errors that ha ve occurr ed on the interface sinc e the swit ch was last refr eshed.
Viewing Statistic s Lo gs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 29 2 Lo gs The switch generat es mes sages to identify th e state of the syst em and to assist in diagnosing issue s that arise during swit ch operation.
Viewing Statistic s Lo gs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 30 2 - Informational (6) —Inf ormational messages . - Deb u g ( 7) —Pr o vides detailed information about an event . Y ou can use the Lo g S e t t i n g s page to select the s everity levels that ar e re c o rde d i n t h e lo g .
Viewing Statistic s Lo gs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 31 2 The V ersion 1 log is the current or most recently creat ed log file, the V er sion 2 log is the next most recent , and the Ve rsion 3 log is the olde st file.
3 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 32 Administra tion This chapter describe s how t o configure global system settings and p er f orm diagnostics .
Admin ist ra tion Configuring Sys tem S ettings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 33 3 C onfiguring System S et tings The Sy ste m Se ttin gs page enables you t o c onfigur e inf ormation that identifie s the switch within the network .
Admin ist ra tion Management I n ter f ace Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 34 3 Management Inter face Swit ch management int er face enable acce ss to the web-based switch configuration utilit y fr om a management station on the net work .
Admin ist ra tion Management I n ter f ace Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 35 3 STEP 3 Select one of the f ollowing options f or the IP Addr es s T ype : • DHCP — The management int er face obtains its IP v 4 address from a DHCP ser ver .
Admin ist ra tion Management I n ter f ace Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 36 3 C onfiguring an IP v 6 Management Interfac e Use the IP v6 Inter face page to enable acces s t o the web-b ased switch configuration utilit y over IP v6.
Admin ist ra tion Management I n ter f ace Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 37 3 • DA D Status — T he Duplicat e Addr es s Detection status.
Admin ist ra tion Management I n ter f ace Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 38 3 Viewing and Adding IP v 6 Neighb ors When IP v6 management is enabled, the switch identifies IP v6-enable d devices on attache d links.
Admin ist ra tion Managing Us er Acc ounts Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 39 3 STEP 4 Click Apply and then click Clo se . Y our changes are sav ed t o the Running Configuration.
Admin ist ra tion Managing Us er Acc ounts Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 40 3 As you enter a password, the number and color of ver tical bars changes to in di ca te t h e p as s wo rd s tre ng th , as f ol lo ws : • Red— The password f ails t o meet the mi nimum comple xity requir ements.
Admin ist ra tion Managing Us er Acc ounts Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 41 3 As you enter a password, the number and color of ver tical bars changes to in di ca te t h e p as s wo rd s tre ng th , as f ol lo ws : • Red— The password f ails t o meet the mi nimum comple xity requir ements.
Admin ist ra tion Enabling Management Se r vice s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 42 3 Enabling Man agement Ser vic e s Use the Ma na g e me nt S e r vi c e s page t o enable and disable the available type s of management connections .
Admin ist ra tion Lo gi n Hi sto r y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 43 3 • Authentication Method —Lists the pr ot ocol us ed t o authenticat e the ses sion login.
Admin ist ra tion Ti m e S e t t i n g s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 44 3 By defa ult , the time is configured locally on the swit ch. NOTE The actual syst em time, dat e, time zone inf ormation, and daylight savings time status appears at the bot t om of the page.
Admin ist ra tion Ti m e S e t t i n g s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 45 3 • USA /Europe an/Other —Select USA or Eur op ean t o ha ve the DST o ffset c o n f i g u r e d t o t h e v a l u e s u s e d i n t h o s e l o c a t i o n s .
Admin ist ra tion Ti m e S e t t i n g s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 46 3 NOTE : If the T imezone Source - DHCP set ting is enabled and time zone informa tio n is re cei v.
Admin ist ra tion Ti m e S e t t i n g s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 47 3 • Client Port — The logical p ort numb er t o use f or the S NTP client on the switch. The def ault is the well-known IANA por t number f or this ser vic e, 123.
Admin ist ra tion Ti m e S e t t i n g s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 48 3 - Ser v er Kiss of De ath —SNTP ser ver has replied with a kiss of death packet, instructing the switch to st op s ending r equests to the ser ver , due t o traffic spikes or other error conditions.
Admin ist ra tion Ti m e S e t t i n g s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 49 3 • Por t —Specif y the UDP por t number to be specifie d in the SNTP mes sage headers. By default , the por t numbe r is the well-known IANA value of 123.
Admin ist ra tion Ti m e S e t t i n g s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 50 3 • Last Unic ast Attempt Time — The time of the most recent at tempt by the switch to synchr onize with an SNTP unicast s er ver . • Client Mode — The configur ed S NTP client mode (Unicast or Broadcast) .
Admin ist ra tion Syst em L ogs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 51 3 STEP 4 In the SNTP Authentication T able, click Add t o add a k ey t o the list . STEP 5 Enter the paramet ers: • Authentication K ey ID — The key number .
Admin ist ra tion Syst em L ogs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 52 3 C onfiguring Log S et tings Use the L og S et tings page to enable logs globally , and to define which ev ent t yp e s are lo gg e d i nto tem po ra r y m em or y ( R AM ) a nd p er si ste nt me mo r y (f l as h) .
Admin ist ra tion Syst em L ogs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 53 3 • Informational —Device inf ormation. • Deb u g —Pr ovide s detailed inf ormation ab out an event. NOTE: When you select a severity level, any ev ents of that level or higher ar e automatically selected f or lo gging.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 54 3 STEP 6 Click Apply and then click Clo se . Y our changes are sav ed t o the Running Configuration.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 55 3 Files and File Types The f ollowing t ypes of c onfiguration and operational files ar e f ound on the switch: • Running Configuration —Paramet ers that are curr ently used by the switch t o operate.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 56 3 • Lan gua ge F il e — The dictionar y that allows the windows to be displayed in the selected language. • Flash Lo g —S Y SL O G mes sage s st ored in Flash memor y .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 57 3 T o upgrade or backup the firmwar e or t o up date the boot code or language file : STEP 1 Click Admin ist ra tion > Fil e M an a ge m ent > Upgrade/B ackup Firmware/ Langua ge in the na vigation window .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 58 3 WA R N I N G Ensur e that power to the swit ch r emains uninterrupt e d while downloading an im age or a boot code file to the swit ch. If a p ower failur e occurs while downloading a file, the file contents in persistent memor y are lost .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 59 3 STEP 4 Enter the f ollowing paramet ers: • TFTP S er ver ( TF TP only)—Specify the IP v 4 or IPv6 address of the TF TP ser ver . Or spe cify the ser ver name if DNS is enabled in the IP configuration (see Domain Name Syst em ).
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 60 3 STEP 4 Enter the paramet ers: • TFTP S er ver ( TF TP only)—Specify the IP address of the TF TP ser ver . Or speci fy the ser ver ’ s domain name if DNS i s enabled in t he IP configuratio n (see Domain Name Syst em ).
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 61 3 F or HT TP backups , you ar e pr ompted t o browse to a location to sa ve the file.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 62 3 • Running Configuration —Curre nt configuration, including any changes applied in the current management ses sion. • Star tup C onfigura tion —Configuration file t ype use d when the switch last booted.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 63 3 O ver view During star tup, the swit ch attempts communication wit h a DCHP ser ver to obtain its IP address and other information.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 64 3 1. T h e sname field in a DHCP or BO OTP r eply . 2. The TFTP s er ver name (option 66) field in a DHCP r e ply . 3. The TFTP s er ver addr e ss (option 150) field in a DHCP reply .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 65 3 NOTE The swit ch r equires the boot file name to ha ve a .cf g extension. Default Network Configuration File If Default Network C onfiguration Mode is enabled, the switch downloads the configuration file <hostname> .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 66 3 When the switch gets the def ault configurat ion file, the configuration is validated f or errors. If the validation is suc ces sful, then the switch copies the configuration t o the Star tup Configuration file t ype an d reboots .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 67 3 Set ting DHCP Auto C onfiguration Y ou can use the DHCP Auto Configuration page to enable and disable the f eature, configure TFTP ser ver and file name settings , and view status information.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 68 3 T o configur e DHCP Aut o C onfiguration: STEP 1 Click Admin ist ra tion > Fil e M an a ge m ent > DHCP Auto Configuration in the na vigation window .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 69 3 F irmwar e Rec over y O ver HT TP The swit ch has a firmwar e r ecover y f eatur e that enables the rest oration of a valid image on the swit ch after a failed download.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 70 3 NOTE: The HTTP firmware r ecover y f eatures suppor ts the following br owsers : • Fi ref o x 3.0 and later v ersions • Int ernet Explorer 6 and lat er versions A Firm ware Recover y page displays.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 71 3 D ownloading an Im age or B o ot Co de File F rom the System B o ot Prompt Y ou can download and install a new image or bo ot code file at the system boot pr ompt using the TFTP and XMODEM protocols.
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 72 3 STEP 5 Enter the command to ha ve an IP addr es s assigned to the por t fr om a DHCP ser ver on the attache d network : CFE> ifconfig eth0 -auto When the switch receives a DHCP r eply , the IP inf ormation displays on the te rm i na l .
Admin ist ra tion F ile Management Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 73 3 STEP 3 St op the control at boot co de by pr es sing and holding < Ct r l > + C continuously as t.
Admin ist ra tion Rebooting the Switch Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 74 3 Reb o oting the Switch Use the Reb oot page r eboot the switch. T o r eboot the switch: STEP 1 Click Admin ist ra tion > Rebo ot in the na vigation window .
Admin ist ra tion Configuring Contr ol P acke t Forwar ding Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 75 3 STEP 3 F or an IPv4 addr e ss , ent er the f ollowing par amet ers: • IP Addres s/Host name —Enter the IP addr es s or the hostname of the station you want the swit ch to ping.
Admin ist ra tion Diagno stics Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 76 3 • LLDP —Net work devices use the Link Layer Discover y Prot oc ol t o advertise their capabilities to other devices. See LLDP -MED f or inf ormation on configuring the LLDP f e atur e on the switch.
Admin ist ra tion Diagno stics Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 77 3 T esting C opp er Por ts Use the Copper Por t s page to per f orm tests on copp er cables . These physical lay er diagnostics can b e used to help dete rmine where in the cable a br eak might exi s t .
Admin ist ra tion Diagno stics Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 78 3 C onfiguring Por t Mirr oring Use the por t mirroring f eature t o s end network traffic on a p ort c opied to another por t f or analysis by a net work analyzer .
Admin ist ra tion Diagno stics Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 79 3 T o configure a mirr oring s es sion: STEP 1 In the P or t Mirr oring Source Interface T able, click Add . STEP 2 Select a S ess ion ID . STEP 3 Select the Source Interface and the typ e of traffic t o be mirror ed .
Admin ist ra tion Enabling Bon jour Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 80 3 T o clear the curr ent configuration f or a ses sion, select the s es sion and click Edit . Then select En able f or Reset S es sion field. CPU /Memor y Utilization Use the CPU /Memory Utiliz ation pa ge to mo ni tor CP U an d m em or y us a ge .
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 81 3 • Cis co-sp ecific devic e des cription (c sco-sb)— This ser vic e enables clients t o discover C isco swit che s and other products deplo yed in small busines s networks .
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 82 3 The switch suppor ts the LLDP Media Endpoint Discover y (LLDP -MED) extensions t o the LLDP pr otocol.
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 83 3 • Co ordina tes —Switch GPS coordinates in he xade cimal f ormat . • ELIN Addre ss — The ELIN number . • Co untr y —Countr y where the city is located.
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 84 3 STEP 4 Select the A vailable TL V s that you want the por t t o include in LLDP adver tisements: • Net work Polic y — VLAN ID , the 802. 1 p clas s-of -ser vice value, and the Diff erentia ted Ser vice s Code P oint (DS CP) value.
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 85 3 LLDP -MED Por t St a tus D et ails The LLDP-MED Por t Status Details page displays the LLDP -MED configuration f or all por ts on which the f eature is enabled.
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 86 3 • Management Addres s — The management int er face IP address (see the IP v4 Inter face page or the IPv 6 In ter face page) . • Por t ID SubType — The t ype of the por t identifier .
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 87 3 LLDP -MED Neighb or Information The Neigh bor Inf ormation page displays inf ormation received from other LLDP - MED -capable devices in the net work .
Admin ist ra tion LLDP - MED Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 88 3 Inventory • Hard wa re Re vis ion —Swit ch har dware r evision ID . • Fir mw ar e R ev is io n —Swit ch firmwar e revision number . • Softwa r e Re vis ion —Switch soft ware r evision numb er .
Admin ist ra tion Configuring DHCP Clien t V endor Options Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 89 3 • PoE Power Priorit y —Displays High, L ow , or Critical to indicat e how the por t is prioritized when there is less PoE power to deliver than r eque st ed by all powered device s.
4 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 90 Por t Management This chapter describe s how t o configure swit ch por t set tings, c ombine por ts into link aggregation groups, and configure por t power f eatures .
Por t Management Configuring P or t Settings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 91 4 • Administrative Duplex Mode —If Aut o Ne gotiation is disabled, sele ct Half f or half-dup le x or Full f or full- duple x operation.
Por t Management Link Aggrega tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 92 4 Link Aggre ga tion Link Aggregation allows one or mor e full- duplex Ethernet links to be aggregat ed t ogether to f orm a Link Aggregation Gr oup (LAG) .
Por t Management Link Aggrega tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 93 4 LAGs can b e as signed memb ership in VL ANs; ho wever , individual por ts los e their individual VLAN memb erships when they bec ome LAG members .
Por t Management Link Aggrega tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 94 4 • Lo ad Ba lance Algorithm —S elect one of the options to enable the swit ch t o load-b alance outgoing pack ets among member p orts of a LAG. The switch selects one of the links in the channel f or transmitting sp ecific pack ets.
Por t Management Link Aggrega tion Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 95 4 • Admin K ey —A number that determines the dynamic L AG(s ) that the interface can join. All inter faces in a dynamic L AG must shar e the same admin key .
Por t Management Configuring P oE Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 96 4 - Long —Long LACP timeout is 3 time s the long periodic timer to transmit LACP packets. The default L ong L ACP timeout is 90 seconds . STEP 3 Click Apply and then click Clo se .
Por t Management Configuring P oE Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 97 4 • Power Management Mo de —Select how the switch prioritizes the power that it provides to multiple por ts: - Static with Port Priorit y —Static with priorit y power management .
Por t Management Configuring P oE Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 98 4 C onfiguring PoE Por t Set tings Y ou can use the Por t Set tings page t o view and configure settings f or por ts acting as PSEs .
Por t Management Configuring P oE Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 99 4 - Dot3AF and LLDP -MED — T he maximum power that can be deliver ed by the por t is limit e d by the value in LLDP -MED TL V s received from a por t device.
Por t Management Gree n Ethe rnet Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 100 4 • Invalid Signa ture Counter —Number of times an in valid signature was r ece ived. Signatur e s ar e the means by which the powered device identifies itself to the PSE .
Por t Management Gree n Ethe rnet Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 101 4 T o configure global Green Ethernet pr oper ties : STEP 1 Click Port Management > Green Ethernet > Proper tie s in the navigation windo w . By default , Energy Detect mode is enabled globally and on all por ts .
Por t Management Gree n Ethe rnet Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 102 4 - Link up — There is activity on the link . - Admin Dow n —Energy det ect mode is administr ativ ely disabled. STEP 2 Select the p or t t o configure and click Edit .
5 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 103 VL AN Man agement This chapter describe s how t o configure virtual L ANs. It includes the following t opic s: • Creating VL ANs • Co.
VL AN Management Crea ting VL ANs Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 104 5 Creating VL ANs The Create VL AN page enables you to define and configur e VLANs on the network . T o display this page VL AN Management > Cr eate VL AN in the na vigation window .
VL AN Management Configuring VL AN In ter f ace S e ttings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 105 5 T o configure VLAN interface s ettings : STEP 1 Select the por t or L AG t o configure and click Edit .
VL AN Management Configuring VL AN In ter f ace S e ttings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 106 5 • Fra m e T yp e —Spe cifies the frame type ac cepted on the por t: - Admit Untagged Only —Only untagged frames are accepted on the por t .
VL AN Management Configuring VL AN In ter f ace S e ttings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 107 5 Changing from Trunk Port to Access Port If the original trunk por t has an untagg ed VLAN memb er on the por t , the po rt is r emoved from all its VLANs ex cept the untagged VL AN on the por t .
VL AN Management Configuring VL AN Memb ership Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 108 5 • If an Acces s por t was a member of the deleted VLAN, the Acces s por t bec omes a member of the default VLAN and its PVID is changed to the default VLAN.
VL AN Management Configuring VL AN Memb ership Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 109 5 C onfiguring Por t to VL AN Use the Por t to V L AN page t o : • Configure por ts as members of a selected VL AN.
VL AN Management Configuring VL AN Memb ership Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 110 5 C onfiguring Por t VL AN Memb ership T o configure VLAN set tings f or po rts : STEP 1 Click VL AN Man agement > Port VL AN Memb ership in the na v igation window .
VL AN Management Se ttin g the Def au l t V L AN Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 111 5 • PVI D —When this option in selected, the por t us es the selected VL AN ID as its por t VL AN ID (PVID). The p ort assigns the PVID to all untagged frames r ec eived on the por t bef ore f or warding.
VL AN Management Vo i c e a n d M e d i a Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 112 5 • The typ e of the original default VLAN is change d fr om Default t o Static, and it can be deleted. One ex c eption is VL AN 1 . Ev en if it is no longer desi gnat ed as the default VLAN, VL AN 1 cannot be deleted.
VL AN Management Vo i c e a n d M e d i a Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 113 5 • Media VL AN • Auto V oIP S es sions Displa ying and Adding T elephony OUI The Te l e p h o n y O U I page lists the Organizational ly Unique Identifiers (OUIs ) as sociated with dif f erent voice VLANs .
VL AN Management Vo i c e a n d M e d i a Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 114 5 • Enable por ts f or this f eatur e. When enabled on a por t , the por t is automatically mad.
VL AN Management Vo i c e a n d M e d i a Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 115 5 STEP 1 Click VL AN Management > V oic e and Medi a > SIP /H323 B ase d in the na vigation window .
VL AN Management Vo i c e a n d M e d i a Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 116 5 When a por t is LLDP - MED enabled with network p olicy , the switch will adv er tise its Media VL ANs in the LLDP -MED network p olicy TL V s out to the por t .
VL AN Management Vo i c e a n d M e d i a Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 117 5 STEP 6 F o r Application Status, sele ct Enable to enable priority as signment f or the selected application. Uncheck the b o x t o disable this f eature.
6 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 118 Sp anning T r e e This chapter describe s how t o c onfigur e the Spanning T ree Prot oc ol (S TP) on the switch.
Sp anning Tree Configuring S TP Status and Global Sett ings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 119 6 When the r oot bridge is s elected and each r oot por t is establ ished, each netw ork segment can then determine which bridge pr ovide s the lowest cost path to the r oot por t .
Sp anning Tree Configuring S TP Status and Global Sett ings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 120 6 • STP Op era tion Mo de —Select one of the f ollowing STP mode s: - Class ic STP —Operates acc or d ing t o the original IEEE 802.
Sp anning Tree Configuring S TP Int er f ace S ettings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 121 6 The f ollowing information appears in the Designated Root section of the page: • Bridge ID — The bridge identifier , which is a c oncat enation of the bridge priorit y and the base MAC addr e s s of the bridge.
Sp anning Tree Configuring S TP Int er f ace S ettings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 122 6 • STP —Select t o enable S TP operation on the port /L AG. • Auto Edge —Sele ct Enable t o allow the swit ch t o automatically det ermine if t he po rt i s a n ed ge po rt o r P o rt F as t.
Sp anning Tree RS TP In ter face S ettings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 123 6 • Por t State —Curr ent ST P stat e of a por t . If enabled, the por t state det ermines the forwarding action that is taken on tra ffic. Pos sible por t states are: - Disa bled —STP is curr ently dis abled on the por t .
Sp anning Tree RS TP In ter face S ettings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 124 6 By default, the RSTP Interface Set tings T able displays inf ormation f or each p or t . Use the Interface T ype list to displa y p ort s or LAGs in the table.
Sp anning Tree RS TP In ter face S ettings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 125 6 MSTP Instanc e Set tings MSTP Interfac e Set tings.
Sp anning Tree RS TP In ter face S ettings Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 126 6.
7 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 127 MA C A ddr e s s T able s This chapter describe s the static config uration and dynamic learning of Media Acces s Control (MA C) addr es ses into the filt ering datab ase of the swit ch.
M A C Ad dr ess T a bl es Configuring Sta tic MAC Address es Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 128 7 • MA C Addres s — Ent er the static MAC address . • Status —Select a status f or this static MAC address: - Permanent — When this status is s elected, the static MAC addr es s does not ex pir e.
M A C Ad dr ess T a bl es Configuring the Aging T ime for Dynamic Address es Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 129 7 C onfiguring the Aging Time for D ynamic A ddr e s s e s The.
M A C Ad dr ess T a bl es Dynamic MAC Addr ess es Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 130 7 The Dynamic Address T ab le displa ys the following fields f or each entr y it learns : • VL AN ID — VL AN on which the MAC address was learne d.
8 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 131 Multic ast This chapter describe s how t o configur e the multicast pr ot ocols that f or war d packets fr om one s our ce to multiple destinations.
Multic ast Multicas t Pr op er ties Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 132 8 Multicast entrie s can be learne d by snoopin g (list ening in on ) the lay er 3 prot oc ols that manage multicast membership s: • IP v 4 multicast group addr e ss es can be learned through the Int ernet Gr oup Management prot o col (IGMP).
Multic ast Configuring MAC Gr oup Address es Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 133 8 • For ward All —All multicast pack ets r eceived fr om a VLAN ar e flooded to al l por ts in the VLAN, regardless of p or t r egistrations to multicast addr e ss es.
Multic ast Configuring MAC Gr oup Address es Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 134 8 Viewing the MA C Group Addres s T able T o view the MAC Gr oup Addr es s T able, click Multic ast > MAC Gr oup Addres s in the na vigation window .
Multic ast Configuring Gr oup -to-Por t Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 135 8 C onfiguring MA C A ddres s Group Port Memb ership By default , pack ets destined to a multicast MAC addr e ss are floode d on all por ts.
Multic ast Configuring IGMP Sn ooping Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 136 8 STEP 4 Set the type to indicat e whether the entr y is statically configured or dynamically learned.
Multic ast Configuring IGMP Sn ooping Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 137 8 T o configure IGMP snooping: STEP 1 Click Multic ast > IGMP Snooping in the navigation window . STEP 2 Select Enable f or the IGMP Snooping Status .
Multic ast Configuring MLD S nooping Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 138 8 STEP 7 Ensur e that an IGMP Mr outer int erface has b een configured f or this VLAN (or all VLANs). S ee C onfiguring IGMP Multicast Router Inter face s .
Multic ast Configuring MLD S nooping Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 139 8 STEP 4 Fo r VL AN ID , s elect the VLAN that is t o suppor t MLD snooping.
Multic ast Configuring IGMP Multicas t Router In ter face s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 140 8 C onfiguring IGMP Multic ast Router In ter fac e s An IGMP r outer must e xist to manage th e IGMP clients in a VL AN.
Multic ast Configuring MLD M ulticas t Rout er In ter face s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 141 8 C onfiguring MLD Multic ast Router Inter face s An MLD multicast router must e xist to manage the MLD clients in a VL AN.
9 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 142 IP C onfigura tion This chapter describe s the Addr es s Resolution Prot o col (ARP) and Domain Name Syst em (DNS) client f eatures .
IP Configuration Domain Name Syst em Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 143 9 S e e t h e fo l l o w i n g t o p i c s fo r m o re i n fo r m a t ion on the configuration pages available in the IP Configuration > Doma i n Na m e S ys tem menu.
IP Configuration Domain Name Syst em Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 144 9 NOTE: Default domain names may be learne d fr om r eply mes sage s fr om a DHCP ser ver . These name s display in the Default Domain Name List . STEP 4 Click Apply .
IP Configuration Domain Name Syst em Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 145 9 STEP 5 Click Apply and then click Clo se . Y our changes are sav ed t o the Running Configuration.
10 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 146 Sec u r i t y This chapter describe s the securit y f eatures f or the por t , user , and ser ver . It includes the following t opic s: • RA D IU S • Password Strength • Management Ac ce s s Profile Rules • Authentication Methods • Storm Control • Por t Se curit y • 802.
Secu rity RAD IU S Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 147 10 C onfiguring Global R ADIUS S et tings T o configure the global set tings : STEP 1 Click Secu r i ty > RA DI US in the na vigation window .
Secu rity RAD IU S Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 148 10 T o add a R ADIUS Ser ver to the R ADIUS T able : STEP 1 Click Add STEP 2 Enter the paramet ers: • RA D I U S Se r v er —IP addres s or hostname of the ser ver . • Priorit y — The lower the priority numb er value, higher the priority of the ser ver .
Secu rity Passw or d Str ength Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 149 10 Pas sword Str ength Y ou can use the Pas sw ord St rength page to configur e characteristics of secure management user pas swor ds.
Secu rity Management Acce ss Pro file Rules Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 150 10 Management Ac c e s s Profile Rule s Use the Management Acces s Profile Rule s page t o define a pr ofile and rules for acce ssing the device f or management purpos es .
Secu rity Management Acce ss Pro file Rules Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 151 10 T o limit acc ess to the web-b ased switch configuration utilit y only to specifie d users, .
Secu rity Management Acce ss Pro file Rules Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 152 10 Mo dif ying and De leting Ac ce s s Profiles and Rule s Bef ore you can delet e an Acc ess Profile or modify the rules , you must disable the pr ofile.
Secu rity Authentica tion Methods Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 153 10 STEP 3 Click Apply , and then click Close . Authentication Methods Y ou can use the Authe nti ca tion M ethods page t o sp ecify how users are allowed access t o swi t ch ports.
Secu rity Storm Cont rol Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 154 10 Storm C ontr ol A traffic storm is the r esult of an ex c es s ive number of br oadcast , multicast , or unknown unicast mes sages simultane ously transmitted across a net work by a por t .
Secu rity Por t S e cu ri t y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 155 10 NOTE : The actual rate of ingr es s traffic required to activat e Storm Control is base d on the actual siz e of incoming packets and the har d-c oded average packet siz e (512 by t es) paramet er .
Secu rity Por t S e cu ri t y Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 156 10 • Interfac e Status —Select Lock t o enable por t securit y on the int er face.
Secu rity 802 . 1 X Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 157 10 • Res et Por t —Select to r eset the p or t if it has been shut down by the Port Security f eatu re. STEP 4 Click Apply and then click Clo se . Y our changes are sav ed t o the Running Configuration.
Secu rity 802 . 1 X Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 158 10 on the network —the au thenticat or —use s t o request authentication from a ser ver . • Authenticat or: An entity that facilitat es the authentication of the supplicant on the r emot e end of a link .
Secu rity 802 . 1 X Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 159 10 • Lo cal — The switch per f orms local authentication of a remot e supplicant base d on EAP -MD5. The supplicant identification must be one of the management users configured on the switch ( see Man aging User Accounts ).
Secu rity 802 . 1 X Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 160 10 STEP 3 Select the role f or the por t : • Authenticator —Select this option if the por t must authenticate the remot e supplicant bef ore granting acce ss to a local por t .
Secu rity 802 . 1 X Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 161 10 - auto —Select this option if the por t control is based on the result of the authentication pr oc ess . If the supplicant is authenticat ed, the por t control status bec omes Authorized, meaning the supplicant is granted ac ces s t o the por t .
Secu rity 802 . 1 X Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 162 10 • Max EAP Re quests — The pr econfigu r ed maximum number of time s the switch can send an E AP r eques t bef ore restar ting the authentication proces s if it does not r eceive a response .
Secu rity 802 . 1 X Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 163 10 • Us er Name —S elect the user to be used by the por t to identify itself as a supplicant . The user must be one of the switch management users configured in the switch.
11 Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 164 Qualit y of S er vic e This chapter describe s the QoS f eatures of the device. • QoS Prop er ties • Defi nin g Qu eues • Mapping CoS/802.
Qualit y of Ser vice QoS Proper tie s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 165 11 The switch suppor ts f our egress queues for each por t or LAG.
Qualit y of Ser vice De fin ing Qu eues Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 166 11 • trust ip -pr ec e dence — The p or t uses the IP Precedence value in the IP packet header . If no value is provided, the def ault priority is as signed.
Qualit y of Ser vice De fin ing Qu eues Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 167 11 Queue C onfigura tion Rec ommendations It is r eco mmended that higher number ed queues be configured with higher priority , weight , and minimum-bandwidth set tings.
Qualit y of Ser vice Mapping CoS/802. 1 p Priorities to Queue s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 168 11 • WRR —S elect to ha ve the sche duler ser vice the queue in turn with other WRR queues , based on bandwidth p er centage of the queue relativ e t o other W R R q u e u e s .
Qualit y of Ser vice Mapping CoS/802. 1 p Priorities to Queue s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 169 11 NOTE If you click Restore D efaults , the f ollowing mappings are applied t o the selected interface.
Qualit y of Ser vice Ma pp in g I P P r eced en ce t o Q ue u es Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 170 11 Mapping IP Prec e denc e to Queue s The priority of a packet arriving at an int erfac e can be identified by the T yp e of Ser vice ( T oS) field in an IP pack et header .
Qualit y of Ser vice Mapping DSCP V alues to Queue s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 171 11 NOTE If you click Restore D efaults , the f ollowing mappings are applied t o all interfaces .
Qualit y of Ser vice Defining R a te Limit Pr ofiles Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 172 11 NOTE If you click Restore D efaults , the f ollowing mappings are applied t o all interfaces . D efining Rate Limit Pr ofile s The rat e-limiting f eature enables yo u to set a maximum i ncoming traffic rat e f or a por t .
Qualit y of Ser vice App lyin g Ra te Lim it P ro file s to Inter fac e s Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 173 11 • CB S —Spe cify a c ommitted burst size, which is the guaranteed amount of bandwidth f or burst y traffic on the por t .
Qualit y of Ser vice Tr a f f i c S h a p i n g Cisco Small Busines s SG200 Serie s 8-por t Smart Switch 174 11 T ra f fic Shaping Y ou can use the Tr a f f i c S h a p i n g page t o smooth the packet output rat e. Y ou can configure the maximum output rat e f or each p or t and LAG, expr e ss ed as a percentage of bandwidth.
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Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Cisco Systems SG200 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Cisco Systems SG200 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Cisco Systems SG200, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Cisco Systems SG200 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Cisco Systems SG200, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Cisco Systems SG200.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Cisco Systems SG200. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Cisco Systems SG200 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
