Instruction/ maintenance manual of the product 2250-SFP 3Com
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www.3Com.c om Part No. 100166 22 Published May 2008 Baseline Switch 2226-SFP Plus Baseline Switch 2426-PWR Plus Baseline Switch 2250-SFP Plus Installation and User Guide Installations- und Bed ienungs.
3Com Corporation ■ 350 Campus Drive ■ Ma rlborough ■ MA 01752-30 64 Copyri ght © 2 008, 3C om Corp oration. A ll righ ts reserv ed. No p art of t his documen tation may be reproduced in any for.
C ONTENTS A BOUT T HI S G UIDE Conv enti ons 7 Docume ntation Comm ents 8 Product R egistrati on 8 1 I NTR ODUCING THE B AS ELIN E S WITCH Over view of th e Basel ine Swi tch 9 Features and Ca pabilit.
Automat ic IP Configur ation 37 IP Setup 38 Backup Co nfigurat ion 3 8 Restore Con figuration 39 Firmw are Upgrad e 39 Rese t 40 System Access 40 System Name 43 System Ti me 43 SNMP 43 Conf iguring VL.
PC-A T Serial Cable 88 Modem Cabl e 88 Ethernet P ort RJ -45 Pi n Assign ments 89 D 3C OM CLI R EFERENCE G UID E Getting S tarted wit h the Comma nd Line Int erface 91 Cons ole P ort 91 Logging on to .
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A BOUT T HIS G UIDE Thi s guid e descri bes ho w to inst all yo ur 3Com Sw itch and perf orm initial man agemen t confi gurations. It covers th e following switch es: Baseline Sw itch 2226- SFP Plus (.
8 A BOUT T HIS G UIDE Docum entation Co mmen ts Y our suggestio ns ar e very impo rtant to us. Th ey will help m ake o ur docu menta tion mo re useful to you.
1 I NTR ODU CING THE B ASELINE S WITCH This cha pter provides an overvi ew of the fe atures and capabi lities of the 3 Com Base line Swit ch 2226-SF P Plus, 3Com Bas eline Switch 2426-PW R Plus, and 3Co m Base line Switc h 2250-SF P Plus.
10 I NTRODUCING THE B ASEL INE S WITCH 10/100 M bps port s can oper ate in either ha lf-dupl ex or full-d uplex mode. Power - over -Et her net Capabi lity The Switc h 2426-PW R Plus (3CB LSF26PW R) provides 24 front panel RJ-45 ports that support the IEE E 802.
Physical Feat ures 11 Figure 3 3CBL SF50 Fr ont and Rear Pane ls Front Panel The f ront pane l of th e Switc h cont ains a series o f indi cator lig hts (LEDs ) that help describ e the stat e of vario us n etwo rking and conne cti on op erat ions . (1) RJ-45 10 /100 Ports WARNING : RJ-45 Ports.
12 I NTRODUCING THE B ASEL INE S WITCH netwo rk devic es, such as IP phones or wireless acces s points, and aut omatica lly suppl y the requi red DC power , up to a maxi mum of 29.
Physical Feat ures 13 (4) 10/100 BASE-TX Link/A ctivity Stat us LEDs The top ro w (3CBLSF5 0) and the fir st (top) and thir d rows (3C BLSF26/ 3CBLSF2 6PWR) of LED s, which are colored y ellow o r gre.
14 I NTRODUCING THE B ASEL INE S WITCH 1000B ASE-T Mode Ta b l e 3 1000B ASE-T Link/ Activity S tatus LE Ds Ta b l e 4 1000B ASE-T SFP /Duplex Status LED s 1000BAS E-T only operates in full -duplex m ode. 10/100 BASE-TX ca n operate in half- or full-dupl ex mode.
Physical Feat ures 15 Ta b l e 6 SFP Mode SFP/Du plex Status LEDs The SFP module wi ll only disa ble the 1000B ASE-T inte rface onc e there i s a valid link on the modul e.
16 I NTRODUCING THE B ASEL INE S WITCH Package C ontents Before insta lling and usi ng the Switch , verify that your Switch pa ckage is comple te. The Swi tch com es with: ■ One power cord ■ One c.
2 I NSTALLING THE S WITCH This chapt er contain s informati on that you ne ed to install and set up the Switc h. It covers the following topi cs: ■ Import ant Safety Info rmation ■ Positi oning t .
18 I NSTALLING THE S WITCH vorh anden i st. Sie kö nnen diese Sicherhe itsanlei tung a uf der CD-RO M finden die im Liefer umfan g Ihres Netz werkschalt ers enth alten is t. Sie könne n die Anleitun gsdatei auc h von der 3Co m Webseite: www .3Com.com herunt erla den.
Rack-Moun ting or F ree-Stan ding 19 It is al ways go od prac tice to we ar an anti-st atic wri st strap when i nstall ing netw ork e quipment , conn ected to a groun d point. If one is not av ailable , try to ke ep in conta ct with a groun ded rack a nd avoid touc hing the unit's ports and con nectors, if possible.
20 I NSTALLING THE S WITCH Montagesat z Anweisun gen Der Switc h wird mit zwei H alterunge n und vier Schr aube n geli efer t. Di ese wer den für den Einba u in einem Baug ruppent räger be nutzt. Bei der Montage de r Baugrup pe beac hten S ie die A nweisun gen a us “Positioni ng the Switch” auf page 1 8 .
Supplying Power to the Switch 21 CAUTION: The Switch has no ON/OF F switch . The only way t o power on and power of f the Switch is by conne cti ng and di scon nect ing th e power cord. This is called “power cycling”. T o po wer on th e Switch: 1 Plu g the po wer c ord into the po wer so cket on the rear pane l of the Switc h.
22 I NSTALLING THE S WITCH Using SFP T ranceivers The follow ing se ctions des cribe ho w to insert an SFP transc eive r into an SF P slot. SFP tr ansc eivers a re h ot-inse rtable and hot-sw appabl e. Y ou can remove them fr om and inse rt t hem into an y SFP por t wit hout ha ving to power down the S witch.
Performing Spot Checks 23 Figure 5 Insertin g an SFP T ransceiver 2 Gently slide the transc eiver in to the SFP s lot until it clicks into pl ace. CAUTION: SFP trans ceivers are keyed an d can be pro perly ins erted onl y one way . If the tran sceive r does not cli ck when yo u insert it, remove it, tu rn it over , and reinsert it.
24 I NSTALLING THE S WITCH Ta b l e 9 Items to Check If y ou ex peri ence a ny pr oblems op erat ing th e Swi tch, re fer to “T r ouble sho oting ” on page 75 . Cabli ng Chec k tha t all ext ernal cabl ing conne c- tions are secure and that no cables are pulled t aut.
3 C ONNECTI NG TO THE W EB I NTERFACE The Swi tch has a b uilt-in Web interf ace that you can use to set the ad min passw ord, chang e the IP ad dress that is assigned to the Sw itch, and configu re its advan ced sett ings.
26 C HAPTER 3: C ONNE CTIN G TO THE W EB I NTERFACE switch will try to obta in an IP addr ess fr om a DHCP ser ver (as sumin g the Swit ch is c onnec ted i nto a network where one is a vailable).
Logging On to the W eb Inte rface 27 summary to display the new IP s ettings. Figure 7 shows what you shoul d expect to see. Not e that w hen a m anual I P address ha s be en assign ed it will not revert back to th e DHCP mod e on subseque nt re-boo ts.
28 C HAPTER 3: C ONNE CTIN G TO THE W EB I NTERFACE Navigating the Web Interface The Web inte rfac e has been design ed to e nable yo u to easily perfor m adv anced config uration tasks and v iew inform atio n about the Switc h. Menu The men u is loca ted on the left si de of th e Web interf ace.
Navigating the We b Interfa ce 29 Figure 11 3CBLSF 50 Switch Screen Layout L W P Ta b l e 1 lists the av ailabl e items o n the m enu. Ta b l e 1 A vailable M enu Items Menu Sub-Me nu T abs System Inf.
30 C HAPTER 3: C ONNE CTIN G TO THE W EB I NTERFACE SNMP Contains tabs that allo w you to: ■ Set S NMP Ag ent Stat us. ■ Add communit y strings . ■ Remove community s trings. Device Configures the d evice. VLAN Contains tabs that allo w you to: ■ Create a VLAN.
Accessing the Switch using the 3Com Switc h Detect Application 31 Buttons Depe nding o n the sc reen that is currently displaye d, the following butt ons may appear: ■ Apply – Cli ck t o save and .
32 C HAPTER 3: C ONNE CTIN G TO THE W EB I NTERFACE Running the 3Com Sw itch Dete ct Appl ication The 3Co m Baselin e Switch CD-ROM contai ns, in addi - tio n to the docume ntat ion, the 3Com Switc h D etect App lic atio n.
Accessing the Switch using the 3Com Switc h Detect Application 33 Figure 13 The 3C om Switch D etect Search Screen 4 Once your Swi tch or Swi tches have been locate d, you will be pr esented with a list ( Figure 14 ). Select t he switc h to which you want to co nnect an d click on "Open.
34 C HAPTER 3: C ONNE CTIN G TO THE W EB I NTERFACE.
4 C ONFIGURI NG THE S WITCH F RO M T HE W EB I NTERFACE This cha pter provides info rmation on how to configure the Swi tch’ s advanced features. T opics inc lude: ■ Device Summary In formati on .
36 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Device V iew Cont ains field s that displ ay th e syst em, swit ch, and manageme nt informati on to identify th e Switch.
Administra tion Setti ngs 37 Color Key Desc ript ion of the colo r codi ng. Figure 17 Color Key Administration Settings The Adminis trat ion menu inclu des eight ad ministra tion items: ■ IP Setup .
38 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE T o determin e the exac t IP addre ss that t he Switch assign s to itself du ring aut o IP config uration, refer to the label on the top cove r of the Swit ch. This la bel contai ns the MAC a ddress and defa ult IP addre ss of the Switch.
Administra tion Setti ngs 39 Rest or e Config urati on T o rel oad co nfig urat ion set ting s that you pr evio usly saved to a file : 1 Cli ck Administration , Backup & Re store, then t he Resto re Conf iguration tab. The Rest ore Conf igurat ion scr een a ppear s.
40 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE A progress screen displ ays while th e upgrade is taking place. The upgra de procedure can tak e a few minut es, and is compl ete when th e progress bar has f inished ru nning and the Po wer LED has s topped fla shing an d is perma nentl y green.
Administra tion Setti ngs 41 T o en sure that un authorize d users d o not acc ess the Web inte rfac e, 3Com reco mmend s that yo u set an admin pas sword wh en you f irst co nfigur e the Swi tch.
42 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Modify User This p age a llows you to mod ify a user’ s acce ss lev el and passw ord. Figure 24 Modify User Screen Remove User T o remove a user from the S witch, c lick on the u ser name, then cl ick Remove .
Administra tion Setti ngs 43 System N ame Use these user defin able field s to h elp identi fy yo ur switch. Figure 26 System Name Screen System Ti me Cli ck Administration , then Syst em Time on the me nu. This s creen allo ws yo u to set th e syst em time .
44 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE SNMP Add This pag e all ows you to create comm uni ty s tring s fo r management access.
Configuring VLANs 45 Y ou can u se the Swi tch to create VL ANs to orga nize any group of ports in to sepa rate broadca st domai ns. VLAN s confine broadcast tra ffic to the origina ting group and help el iminat e broadcast storm s in large ne twork s.
46 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Setup Use the S etup sc reen to create VLANs on the Swi tch. T o propagate inf ormation a bout VLAN groups used on t his Switch t o exter nal de vices, you must specify a VL AN ID for ea ch VLA N.
Configuring VLANs 47 1 Enter a set of VLAN s or select al l VLANs to confi gure, then c lick Sele ct . 2 Fr om the dr op down menu, sele ct a VLAN to modif y .
48 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE 1 Ente r a set of VLANs or select all VLANs to add to the re name list, then click Select . 2 From t he list o f selected VLANs, choose a VLAN t o r enam e. Ent er a new V LAN n ame a nd cl ick Apply .
Configuring VLANs 49 VLAN Detail Use this scr een to displa y detailed VLAN informa tion. 1 Enter a set o f VLANs o r selec t all V LANs to a dd to the details li st, then cl ick Select . 2 From the drop d own me nu, ch oose a VLAN to di splay the as sociate d tagge d and unt agged memb er ports .
50 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Setting Up T wo VLANs on the Same Switch Figure 38 illus trates how y ou can set u p a simple VLAN on the Sw itch using de sktop connect ions.
Configuring VLANs 51 Figure 39 T agged VLAN Configura tion T o s et up the co nfigurat ion shown in Fi gur e 39 , do the following: 1 Create VLAN 2 on both Sw itch 1 and Swi tch 2. Y ou need not create VLAN1 s ince it e xists b y default. 2 On Switc h 1, set the port s that you want to be pa rt of VLAN2 to Untagge d .
52 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE tree networ k. The bridg ing device , known as the Root Bridge, ge nerates br idge protocol da ta units (B PDUs) on all ports at a r egular inte rval, known as the Hello Time. All other spa nning tree-com pliant devices on the netwo rk have a de signat ed Root Por t.
Configuring VLANs 53 Set up T o use s panning t ree, use t he Setup tab an d choos e Enabl ed fr om the St ate drop d own me nu , f ill i n t he setup pa rameter s, and click Apply . Figure 41 Spann ing T ree Setup Screen Port Set up This a dministra tive tool sup ports t he configur ation of the S witch to forwa rd, or blo ck and discard 80 2.
54 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE ■ Stat us – Enab les and di sable s spann ing tr ee for the port. ■ Edged Port – Enabl es and disabl es edged port for the po rt. ■ Link T yp e – Choose be tween Poi nt-to-Poin t, Shared, or Auto f or the li nk type.
Configuring VLANs 55 Br oadca st S torm A broadcas t storm occ urs wh en an inco rrect packet i s sent ou t on a networ k, caus ing most ho sts to respo nd all at onc e and ty pically with wrong a nswer s that star t the proce ss over agai n. Broadcast storms use s ubstan tial netw ork bandw idth and may caus e netwo rk time-out s.
56 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Modify Use the M odify tab to set the Switc h’ s br oadcast st orm contr ol and thr eshol d limits. The se ttings in clude: ■ Status – Ena bles a nd dis ables broadcast storm control.
Configuring VLANs 57 Set up Use th e Setup tab to confi gure t he global setti ngs for the Voice VLAN. The f ollowing op tions a re available: ■ V oice VL AN Stat us – Ena ble or disabl e V oice VL AN for the s witch. ■ V oice VLAN ID – Input the Vo ice VLAN ID for the switch.
58 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Port Detail Use the Port Detail tab to display th e V oice VL AN info rma tion for se lected ports . Figure 49 QoS Port Detail Scr een OUI Summary Use the OUI Summar y tab to displa y the l ist of Organiz ational Un ique Identi fier for a com pany and the ir de scri ptio n.
Configuring VLANs 59 Figure 51 QoS OUI M odify Screen PoE (3CB LSF26-P WR only ) Cli ck Device , then PoE on the menu. A screen appe ars wit h two ta bs tha t inclu de: ■ Summary ■ Setup Summary Use the Summary tab to display t he devic e and por t PoE settings .
60 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Note th at th e Switc h operat es a por t base d PoE p riority scheme. Lower n umbered p orts hav e priorit y over higher numbered on es.
Configu ring Port S ettings 61 Figure 54 Port Administrati on Summary Scr een Detail Use the Det ail tab to displ ay de taile d po rt set tin g info rmati on fo r a port . Figure 55 Port Admin istration D etail Scr een Setup Use the Se tup tab to conf igur e the po rt s ettin gs.
62 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE disabled , pack ets may be drop ped und er certain period s of high traffic. Flow cont rol is disabled by d efault. ■ Speed – Sets the spe ed mode of the po rt. Available option s include au to, 10, 100, and 1000.
Configu ring Port S ettings 63 1000 Mb ps c onnec tion s ar e al ways f ull -dupl ex. Half- duplex con nection s are only ava ilable for 1 0 Mbps and 10 0 Mbps sett ings . CAUTION: Befo re manual ly sett ing a port to full-dupl ex, ver ify tha t the devic e conne cted to th e port is also ma nually set to t he same spe ed and dupl ex setting .
64 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Summary Use the Summary tab to display a list of co nfigured link aggregati on Group IDs an d the asso ciated member Port s. Figure 57 Link Aggregation Summary Screen Create Use the Crea te tab to add po rts to a group membership.
Configu ring Port S ettings 65 Modify Use th e Modify tab t o rea ssign me mber port s of a lin k aggregat ion group. Figure 59 Link A ggregation Mod ify Screen T o modify a link aggregat ion group: 1 Selec t the aggregatio n group to modif y , the n click Sele ct .
66 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Stat istics The Switch allows you t o display detailed st atistics o f one, severa l, or all ports. Figure 61 Port Statistics S creen T o display statisti cs for a port: 1 Access the Web inte rface.
Security 67 Configur e The fol lowin g paramet ers ar e availa ble: ■ Max Ret ries – Sets the number o f re tries o f sendin g authen ticati on r eques ts. ■ Ti meout – Sets the in terval betw een send ing authen ticati on r eques ts. ■ IP Address – The IP add ress of the RADI US server .
68 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE Summary Use the Summary tab t o display t he 802.1X authentic ation se ttings fo r all th e ports . Figure 63 802.1X Summary Scre en Setup Use the Se tup ta b to configu re the 802.1X auth enticaio n sett ings.
Monitorin g 69 used to detect if a ne w device is plugged int o a switch port. (Default: Disabled) ■ Max Coun t – The ma ximum numb er of h osts t hat can conn ect t o a po rt w hen t he Mu lti-H ost oper atio n mode is select ed.
70 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE entering the Switc h. Y ou can disp lay the ad dress table to fi nd specif ic MAC addr esses, or vie w MAC addr esses associ ated wit h a specifi c port or VL AN.
Monitorin g 71 Switch t akes all the traf fic going in or out of t he mirro r port and copies it to the monitor port. CAUTION: The monit or port shou ld have a high er bandw idth th an the mirro r port. Otherwi se, the Switc h may no t be able to co py all traf fic effec tively du ring peri ods of high tra ffi c.
72 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE T o re move a port mirr or sessio n: 1 From th e port mir ror sessio n list, select the se ssio n to rem o ve . 2 Click Remov e . Cable Dia gnostic s The Swit ch provides a cable diagn ostic uti lity , which help s you de tect and reso lve issu es wi th the attache d cables .
Monitorin g 73 Diagnostics Use th e Dia gnosti cs tab t o displ ay indi vid ual port inform ation on T est Result , Cable Fault Di stance (in mete rs) , and Last Upd ate. Figure 70 Cable D iagnostic Sc r een In the example: "0,0", t he firs t digit refers to the le ngth of t he tr ansmi t pai rs.
74 C HAPTER 4: C ONFIGURI NG THE S WITCH F ROM T HE W EB I NTERFACE.
5 T R O UBLESHOOTING This c hapter lists some iss ues that you may encount er while installi ng, usin g, and mana ging the Switc h, with sugge sted cou rses of c orrectiv e action to take. If you e ncoun ter an i ssue that is not lis ted here an d you canno t solve it, ch eck the 3Co m Kno wledgeba se at http://knowledgebase.
76 C HAPTER 5: T ROUBLESHOOTING The Swit ch will perfor m automa tic IP conf iguration afte r you reset i t. See “ Automatic IP Config uration ” on page 37 for more infor mation.
If the Problem Persists 77 The Link/Activity LED is on, but network performance is poor The Switch supp orts full-dup lex autonegot iation. If th e conn ected devi ce does no t suppor t autoneg otiatio n, ensure that it is c onfigured for hal f-duplex ope ration only .
78 C HAPTER 5: T ROUBLESHOOTING.
A O BTAINING S UPPORT FO R Y OUR P RO D U C T Registe r Y our Product W arrant y and othe r service be nefits st art from the date of purcha se, so it is importan t to register y our produc t quickl y to ensur e you get full use of the warranty and other se rvice bene fits availa ble to you.
80 A PPENDIX A: O BT AINI NG S UPPOR T FOR Y OUR P RODU CT Upda tes yo u must fir st regi ster your pr od uct on t he 3Com Web si te at http://eSupport.3com.com/ . Firs t time use rs wil l need t o appl y for a user name and passw ord. A link to softw are download s can be foun d at http://eSupport.
Contact Us 81 . Country T elep hone Number Asia, Pa cific Rim T elephone T echnical Sup port and Rep air Australia Hong Kon g India Indonesia Japan Malaysia New Z ealand Philippines PR of China Singapor e South.
82 A PPENDIX A: O BT AINI NG S UPPOR T FOR Y OUR P RODU CT Country T elephone Number Latin America T elepho ne T echnical Support a nd Repair From the Caribbean, Central a nd South America, call: Anti.
B T ECHNICAL I NFORMATION 3CBLSF26 Relat ed Standards The Base line Swi tch 2226 -SFP Plus has been design ed to the follo wing standa rds: Environmental Physical Electri cal Function al IEEE 802.3 (Eth ernet), IEEE 802 .3u (Fast Ethernet), IEEE 802 .
84 A PPENDIX B: T ECHN ICAL I NFORMATION 3CBLSF26PWR Related St andards The Bas eline Switch 242 6-PWR Pl us has been design ed to the fo llowing st andards: Environmental Physical Electrical Function al IEEE 802.3 (Eth ernet), IEEE 802 .3u (Fast Ethernet), IEEE 802 .
3CBL SF50 Rela ted S tanda rds 85 3CBLSF50 R elated S tandards The Baseline Switch 2250- SFP Plus ha s been de signed to the fo llowing st andar ds: En vironmen tal Physica l Electrical Functiona l ISO 8802-3, IEE E 802.3 (Ethernet), IEEE 802.3u (Fas t Ethernet), IE EE 802.
86 A PPENDIX B: T ECHN ICAL I NFORMATION.
C P IN -O UTS Consol e Cable A Cons ole ca ble is an 8-co nduc tor RJ 45- to-DB9 cable . One end of the cable has an RJ-45 plug for conne cting to the switc h’ s Consol e port, and th e other end has a DB-9 s ocket connec tor f or conn ectin g to th e seria l port on th e termi nal , as sho wn in Fi gur e 71.
88 A PPENDIX C: P IN -O UTS Null Mode m Cabl e RJ-45 to RS-232 25-pi n PC-A T S erial Cable RJ-45 to 9-p in Modem Cable RJ-45 to RS- 232 25-pin Screen TxD RxD Ground RTS CTS DSR DCD DTR Screen RxD TxD.
Ethernet Port RJ-45 Pin A ssignments 89 Ether net Po rt RJ-45 Pin A ssignments Ta b l e 2 RJ-45 MDI Pin Assignme nts Ta b l e 3 RJ-4 5 MDIX Pin As sign ment s Pin Num ber 10/1 00 1000 Ports configur e.
90 A PPENDIX C: P IN -O UTS.
D 3C OM CLI R EFERENCE G UIDE This se ction de scribes us ing the Com man d Line Inte rface (CLI ) to manag e the devi ce. The de vice is managed thr ough the C LI fr om a dir ec t conn ecti on to th e devi ce consol e port.
92 A PPENDIX D: 3C OM CLI R EFERENCE G UIDE If the passwor d is invalid, the follo wing message appea rs and Login process restarts . Automatic Logout The user se ssion is automa tically terminated af ter 30 minutes in which no device con figuratio n activit y has occu rr ed.
CLI Com mand s 93 ? The ? comma nd displays a lis t of CLI comma nds on the devi ce. Syntax ? Default Configuration This command ha s no defaul t configurat ion.
94 A PPENDIX D: 3C OM CLI R EFERENCE G UIDE Ping The Ping co mmand sends I CMP ec ho request packets to another node on the ne twork. Synt ax ping [ IP ad dress | URL | host name ] Parameters ■ IP A ddr ess — I P addr ess to p ing. ■ URL — URL add ress to ping.
CLI Com mand s 95 ipSetup The ipSetup command allows the us er to define an IP addr ess on the devi ce eith er manua lly or vi a a DHCP server . Syntax ipSetup Default Configuration No defa ult IP ad dre ss is d efined fo r interf aces.
96 A PPENDIX D: 3C OM CLI R EFERENCE G UIDE Upgrade The Upgrade comman d star ts a sy stem do wnload and thereby a llowing a system up grade . Synt ax upgrade Default Configurati on Thi s co mmand h as n o def aul t conf igur ation. User Guidelin es The Upgrade comm and promp ts the u ser fo r required inf ormat ion.
CLI Com mand s 97 Init ia lize The Initialize command resets the devic e conf iguratio n to factory defaults, r etaining the cu rre nt IP conf igur atio n. Syntax Initialize Default Configuration This command ha s no defaul t configurat ion. User Guidelines The sys tem prompts fo r confirmat ion of the reques t.
98 A PPENDIX D: 3C OM CLI R EFERENCE G UIDE Logout The Log out command terminates the CLI sess ion. Synt ax logout Default Configurati on Thi s co mmand h as n o def aul t conf igur ation. User Guidelin es Ther e are no us er g uidel ines f or t his c ommand.
99 R EGULATORY N OTICES FCC Statement This equipm ent has been t ested and found to comply with the limits fo r a Class A digital device, p ursuant to Part 15 of the FCC Rules. T hese limit s are desi gned to pr ovide reasonable pro tection against harmfu l interference in a commerical environmen t.
100.
G LOSSARY 10BASE-T The IEEE specifica tion fo r 10 Mbps Et her net over Categor y 3, 4 or 5 twisted pa ir cable. 100BASE- TX The IEEE specificatio n for 100 Mb ps Fast Ethe rnet over Category 5 tw isted-pa ir cable. 1000BASE -LX IEE E 802. 3z spe cifi cat ion fo r Giga bit Et herne t ove r 9/125 micron core singl e-mode fibe r cable.
102 G LOSSARY Category 3 Cables One of five gr ades of T wisted Pai r (TP) cabling de fined by the EIA /TIA-568 sta ndard. Categor y 3 is voice grad e cab le a nd ca n onl y be used in Etherne t ne twork s (10BASE -T) to transm it data at s peeds of up to 10 Mbps.
103 Full Dup lex A system that al lows pack ets to be transm itte d and rec eived at the same ti me and, i n ef fect, doubles the potent ial throughput of a link . Half Duplex A system that al lows pack ets to be transm itte d and rec eived, but not at the same time.
104 G LOSSARY switches) that cover a relative ly small geographic ar ea (usual ly not la rger tha n a floor or buildin g). LAN s are charac terized by high tran smission s peeds ove r short distan ces (up to 100 0 metres). Layer 2 Data L ink l ayer in th e ISO 7- Laye r Data Com mun icati ons Protoco l.
105 Server A comp uter in a network that is shared by m ultiple end stat ions . Se rvers pr ovide end s tati ons w ith acces s to shared netw ork ser vices such as com pute r files and printer queues .
106 G LOSSARY VLAN A Virtual LAN is a co llection of net work nodes that shar e the sa me collisio n domain r egar dless of t heir physic al location or connect ion point in th e network . A VLAN serv es as a logical workgroup with no physical barriers , and allows u sers t o shar e informa tion and resources as though located on the same L AN.
I NDEX Numbers 1000BASE -LX 101 1000BASE -SX 101 1000BASE -T 101 100BA SE-TX 101 10BASE- T 101 A auto I P conf iguration 37 B bandwid th 101 Baseline Switc h 28 48-SFP 83, 84 C categor y 3 cables 102 .
108 I NDEX P passw ord cha ngi ng 40 default (bl ank) 40 sett ing 36 port setti ngs config uring 56, 6 0, 66 position ing the S witch 18 POST 2 1 pr otocol defi ned 104 R r epai r auth oriz atio n num.
An important point after buying a device 3Com 2250-SFP (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3Com 2250-SFP yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com 2250-SFP - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 2250-SFP you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 2250-SFP will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 2250-SFP, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com 2250-SFP.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 2250-SFP. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 2250-SFP along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
