Manuale d’uso / di manutenzione del prodotto ELS100-24TXG del fabbricante Cabletron Systems
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SmartST ACK 100 ELS100-24TXG ETHERNET SWITCH INSTALL ATION AND USER GUIDE.
NOTICE Cabl etr on Sys tems rese rve s th e right to make chang es in spe cif i cat i ons and oth er i nfo rm a- tion cont ai ne d in this doc um ent wit hout prior not i ce . The rea der s hould in al l cas es co nsu lt Cabl etr on Sy s tems to determ i ne whet her any such cha nges have be en made.
DOC NOTICE This digit al app aratus does not exceed the C lass A limits fo r ra dio noise em iss i ons fro m d ig - ital appa rat us set out in the Radio In t er fe renc e Regulatio ns of the Ca nadian Depar tmen t of Communi cat ions.
EXCLUSION OF WARRANTY AND DISCLAIM ER OF LIABI LITY 1. EXCL USION O F W ARRA NT Y . E x ce pt as may be s pec i fic al l y p rovided by C abletron i n writ ing, Cabl etron makes no warra nty, ex press ed or impli ed, c oncerni ng the P ro- gram (i nc l udi ng its docu mentatio n and medi a).
DECLARATION OF CONFORMITY Applicatio n of Council Directive (s): 89/336/EEC 73/23 / EEC Manu fac t urer’s Name: Cabl et ron Systems , Inc. Manu f acturer ’s Addres s: 35 I ndustrial W ay PO Box 50 0 5 Ro che ster, NH 038 67 Euro pean Repres ent at ive Name: Mr.
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9032947 Table Of Con tents i TABLE OF CONTENT S PREFA CE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Purp ose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii Table Of Contents ELS100-24TXG Net work Cable R equirem ents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Cop per . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Fibe r . . . . . . . .
9032947 Tabl e Of Cont ents iii Con figur ing Spa nnin g Tree Parame ters . . . . . . . . . . . . . . . . . . . . . . . . 58 Con figur ing VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Con figur ing Class of Service .
iv Table Of Contents ELS100-24TXG APPEND IX C. FL OW CONTR OL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 APPEND IX D. VIRT UAL L AN S (VLA NS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 VLAN s and Fram e Tagg i n g .
9032947 Pref ace v PREFACE Purpose This guide prov ides i nforma tion ab out th e featu r e s and applica tions of the Cab l etron ELS100 - 24TXG switch as we ll as inst ruc tio ns for config uri ng and m onitor ing the switch .
vi Prefac e ELS1 00-24TXG Other C onv entions Th i s guide us e s th e follo win g typogra phical co nvention s: • Init i al Caps Men u title s and con sole me nu s el ections . • [Ente r] Used to desi g nat e the E nter or R eturn key . • ALL C APS Used to desi gnat e field s wit hin the c o nso l e menu s (Exampl e: CONN EC TION).
9032947 Pref ace vii Appendix E. Clas s of Ser vice : Des cri bes how th e tra ffic C l a ss of Servic e featu res can be use d to assi gn missi on-cri tical data a h igher priority thro ugh the s wi tch by de laying l e ss c rit i ca l traffic d uring p eriods of co nges ti on .
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9032947 Product Over view 1 1. PRODUC T OVERVIEW Descrip tion This i nst allati on an d u ser gu id e d esc r ib es t he Cabletr on EL S100- 24 TXG Et herne t swit ch. T h e sw itc h is IEEE 80 2.1D-com plian t and su pports 24 IE EE 802.3 u 100B ase-TX F ast E thern et por ts.
2 Product Overview ELS100-24TXG Feat ures • Port s: - 24 d ua l-s pe ed 10 Bas e -T / 100 B ase - T X p or ts u s in g R J- 45 co nn ectors (M DI-X ) - 2 1000Ba se-X Gig abit Ethe r net por ts usi n.
9032947 Product Over view 3 • Softw are: - Ex te nsiv e dia gnostic s fo r pro d uct te sti ng and tr oubles hooti ng - Up grades us i n g t he f r ont pan el con sole port o r in-b an d wi th TFTP Fr on t Pa nel Fi gure 1-1 sh ows the front pa nel of th e Cablet ron ELS10 0-24T XG.
4 Product Overview ELS100-24TXG Fi gure 1-2 s hows the L ink a nd Acti vity LEDs f or the 2 100 0Base-X G igabi t Ethe rnet ports. T he LEDs ar e po sitio ned to the left of t heir associated por t.
9032947 Product Over view 5 The p ort LEDs are grou ped to the left of the ir cor respo nding R J-45 por ts. Tab le 1-2 de fines t he per forman ce of th e port LE Ds for th e 1 0Bas e-T / 100B ase-TX p orts i n both the d efaul t configu ration and wit h the LED mod e butto n p ress ed.
6 Product Overview ELS100-24TXG Feat ure Summaries Th e follo win g su m mari es p rov ide a brief descri ption of ELS10 0-24TXG f eat ures in a reas su ch as s tanda rds compl ianc e, f uncti onal ity, per form ance , and opt i o ns. IEEE 802.1D Bridge Th e ELS100- 24TXG sw itch is f ully c ompl iant with IE EE 802.
9032947 Product Over view 7 Softwa re Do wnload The ELS10 0-24TX G switc h suppo r ts the indus try -sta nd ard T ri vial Fil e Tr ansf er Proto col (T F TP ) for do wnload i ng so ftwar e to t he switch . All swi tch softw are is s t ored in a 2 MB s e ctor ed flas h RO M.
8 Product Overview ELS100-24TXG RMON RMON ( Rem ote Monito ring) is a fa cility used to ma nage netwo rks rem o t e l y w hil e pro v id i n g mul ti-ve ndor i nte rope rabil ity b etwee n moni toring dev ices a nd ma nagemen t stati ons. RMON is d efined b y an SN MP M IB.
9032947 Product Over view 9 co nnec te d to th e sw itc h su ppo rt s au to- nego ti ati on as t he E LS1 00- 24T XG switch automatically adjusts to the network device's co m munication set tings. Auto-ne gotiati on is c onfigur able i n the Port Config uratio n Menu of the con sol e menus or via SNM P.
10 Product Overview ELS100-24TXG (C SMA/C D) p roto c ol , allowing for two - way tr affic. Fu l l duple x is co nfigur able using the Dupl e x Mo de para m eter i n the Port M enu o f th e co nsole menu s or v ia S NMP.
9032947 Product Overvi ew 11 Clie nt/Ser ver Ne twork A ppli cat ion To i mpr ove w ork stati o n p erfor mance in a client/s e rver environ ment, the ELS10 0-24T XG switc h ca n be con figured to prov ide 200 Mbps f u l l dup lex Fast Ethernet connec tio ns to ser ver s b y conn ectin g eac h t o a de dicate d swi tch por t ( Figur e 1-6) .
12 Product Overview ELS100-24TXG Local B ac kbo ne Appl ica t ion Th e E LS1 00-24 TXG s w itc h c an be us ed i n a l oca l bac kb one ap plic ation , co nnecti ng ne twork segm en ts to gether a nd prov idi n g fil e -serv er a ccess (F igur e 1-6).
9032947 Install at ion 13 2. INSTALL ATION Insp ecting You r Shipm ent When you receive the shipment of your switch, che ck the package con ten ts and m a ke sur e you have th e follo win g items: •.
14 Instal lation ELS1 00-24TXG Moun ting the Switc h on a Tab le or She lf Mou nt the sw itch on a table or shelf i n a posit ion wh i ch allows acce ss to the front panel RJ- 45 ports, visibilit y o f the port LEDs, and access to the pow er co rd.
9032947 Install at ion 15 M ounting the Swit ch on a Wall The sw i t ch ship s wit h two ( 2) m ulti-po sition m ountin g ears an d four ( 4) mounting screws. Fi gure 2-1 sh ows th e ori en tat i o n o f th e mou nting ea rs for at taching t he ears to the swit ch for a wall m ount applica t ion.
16 Instal lation ELS1 00-24TXG Moun ting th e Switch in a R ack Th e switc h sh ips wi th t w o (2) m ulti - p o sition mountin g ears and f our ( 4) mounting screws. Fi gure 2-2 s hows the o rienta tion of t he mount ing e ars for attach ing the ears to the swit ch for a rack mount app licatio n.
9032947 Install at ion 17 Con necting a Termin al to the Console Po rt The consol e p ort i s a ser ial RS- 232 inte rface p ort t hat ena bles a con nec tion to a term inal fo r pe rforming switch moni toring a nd co nfi gur ati on f unc tio n s.
18 Instal lation ELS1 00-24TXG Powering the Swit ch To sup ply po w e r to t he switch , do the fo llowin g: 1. Con nect the po wer c ord t o the sw itch and to a gr ounde d thre e-pr ong wall outlet (Figure 2-4).
9032947 Install at ion 19 • Memo ry Mem o ry tests on the CPU RA M are p erform ed afte r the serial port test. No results are di splayed on the console . Af ter the s e two test s are p erforme d, the oper ational s o ftw are of the sw itch is load ed .
20 Instal lation ELS1 00-24TXG 10Base- T/100Ba se-TX Po rts Th e 10Bas e -T/100 Ba se- TX po r ts use RJ-45 con nector s. F igur e 2-5 sh ows an R J-45 co nnector being inserte d into a port.
9032947 Install at ion 21 1000Ba se-X Gig abit Ethe rnet Ports The fibe r optic G igabi t Ethe rnet GBICs u se du al SC co nnec tors. F igu re 2- 6 s hows a d ual S C c onnec tor be i ng in serted into a Gigabit Etherne t por t on th e ELS1 00-24T XG.
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9032947 ELS100-24TXG User Interf ace 23 3. ELS100-2 4TXG USER INT ERFACE Ov er vie w When y ou h av e co nne c ted a te rminal to the co ns ol e por t, o r u sed T el n et to acce ss the switch over the network, acce ss is gained to th e console menus.
24 ELS100-24TXG Us er Interface ELS100-24TXG User Acc ess The re are t wo mo des of ac c es s t o th e u s er i nte rf ac e: RE AD -ON L Y a nd READ/WRITE. READ-O NLY a ccess allo ws you to view switch in formation , but no t modif y an y operati ng para m e ters .
9032947 ELS100-24TXG User Interf ace 25 Fact ory Def aults Table 3-1 lists the factory de fault settings fo r the switch configuration par ameters. Each of these pa ram e ters ca n b e ch anged via th e co nsole men us or Te l n et.
26 ELS100-24TXG Us er Interface ELS100-24TXG Menu Hierarc hy Fi gure 3-2 s hows the E LS100 - 24TXG s wi tch user inter face m enu hi erarc hy. Fi gur e 3- 2.
9032947 ELS100-24TXG User Interf ace 27 M ain Me nu The Main Men u is the first s cree n seen afte r s uccessf ully loggi ng in to t he system. Figure 3-3 sho ws the Main Men u and t he accompanying tab le des cribes th e Main Menu . Figure 3-3. Main Menu MAIN MENU A c c ess Co n tro l: REA D /W RITE a.
28 ELS100-24TXG Us er Interface ELS100-24TXG System Conf igurat ion Menu The System Configuration Menu enables modification of system-level switch conf iguratio n param eters. Select a from the Ma i n Me nu to view th e Sys te m C onf ig urat io n Me nu .
9032947 ELS100-24TXG User Interf ace 29 SNMP Co nfigurat ion Men u The SNMP Con figurat ion Men u allo w s you t o mod ify SNMP - rela ted co nfi g ur atio n p a ram et e r s . Se le ct a fr om t he S yst em C onf ig urat io n M en u to v ie w t he S NMP Co nfig ur ati o n M enu .
30 ELS100-24TXG Us er Interface ELS100-24TXG Swit ch Config uratio n Menu Th e Switch C o nfig uration Menu allows you to modi fy sw itchin g-relate d co nfigur ation paramet ers. Sel e ct b fr om the Ma in Menu t o v iew the Sw itc h Co nfig ur atio n M en u.
9032947 ELS100-24TXG User Interf ace 31 For wardi ng Ta ble C onfig urati on Me nu The Forw ardi ng Tab le C onfi gura tion Menu allow s yo u to vie w and m odi fy for wa rdi ng tab le p ar am ete rs. The MA C addr es s o f eac h f orw ar ding ta ble entr y is di spl aye d along with i ts t ype, di sposit i o n, and as socia ted po rt num ber.
32 ELS100-24TXG Us er Interface ELS100-24TXG Forwarding Table Confi gura tion Menu (con ti nued) Sel ection D escription Dis p la y T abl e Red isp la y s t he for wa rdi ng t abl e. Mak e En try St at i c Mak es a dynami c en t ry in the f orw arding table stat i c.
9032947 ELS100-24TXG User Interf ace 33 Span ning Tree Config uratio n Menu The Spanni ng Tree Config urat ion Men u allo w s you t o view a nd mo dify Span ning Tree pa r a m e ters. Sele ct b from t he Swi tch C onf i g urati on Menu to v iew th e Span ning T r ee Con figur ation M enu.
34 ELS100-24TXG Us er Interface ELS100-24TXG Spann i ng T ree C onfiguration Menu (conti nued) Selec tion Des cription Spanning Tree Proto c ol Enable A llo ws you to enable (Y es) or di sab le ( No) the globa l Spann i ng Tree ope ration on the swit ch .
9032947 ELS100-24TXG User Interf ace 35 Span ning Tree Po rt Confi guration M enu The Span ning Tree P ort Con figura tion Menu allows you to view S panning Tr ee Confi gurati on infor mation for a ll of the po r ts i n a ta ble fo rmat.
36 ELS100-24TXG Us er Interface ELS100-24TXG Spann ing Tree Po rt #n Con figuration Menu Th e Spanni ng Tre e Port #n Conf i g urati on Men u allo w s y ou t o view S panni ng Tre e P ort C onfigur ation i nforma tion for an ind ividual p ort.
9032947 ELS100-24TXG User Interf ace 37 VLAN Conf igurat ion Men u The VLAN C onf igur ation M enu all ows y ou to c on figu re the op eratio n of Virtu al LANs (VLA Ns) in the switch . Select c from th e Switch Con figurat ion Men u to vi ew th e VLAN C onfigu ration Menu.
38 ELS100-24TXG Us er Interface ELS100-24TXG VL AN Menu Th e VLAN M enu disp lays the confi gurati on of VLANs i n the sw itc h and al l o w s a ccess to t he VLAN #n Confi gur ation Me nu to cre ate an d con figur e VLANs. S elect b from the VL AN C onfig uration Menu to view the VLAN Me nu.
9032947 ELS100-24TXG User Interf ace 39 VLAN #n Co nfigu ration Men u The VLAN #n Config uration Menu al low s you to confi gure a n ame for a spe ci fi c V LAN, a dd o r remo v e a p or t i n the VL AN , and ad d or r em ove a n egress port in the VLAN.
40 ELS100-24TXG Us er Interface ELS100-24TXG VLAN Port Menu The VLAN Por t Men u di spl ays a t a ble o f VLAN con fi g ur ati o n inf or mat io n on a pe r p or t ba sis a nd a llo ws yo u to mo di fy t he VL AN Por t T ype . Sele c t c from the V LAN C onf igur ation Menu to v ie w t he VLA N Por t Men u.
9032947 ELS100-24TXG User Interf ace 41 Class o f Service C onfigu ration M enu The Class of Ser vice Configura tion Men u allows you to config ure Class of Service settings for th e system a s well as to set the Class of Service for VLAN tagged f rames .
42 ELS100-24TXG Us er Interface ELS100-24TXG Port Priority Menu Th e Port Pr ior i t y Me nu al lows you to modi fy and displ ay a ta ble w hich sh ows Cl ass of Servi ce co nfig urati on info r mat ion o n a pe r por t basis . Select c from th e Class o f Servic e C onfigur ation M enu to view the Port P riori ty Con figu ration Menu.
9032947 ELS100-24TXG User Interf ace 43 Port Menu The Port Me nu all o ws you to dis play i nforma tion for each port i n a t able form at , as w e ll a s to access the Port C onfigu rati on Menu . You ca n also refr esh the scr ee n info r ma tion. Select c f r o m the Main Menu to view the Port Menu.
44 ELS100-24TXG Us er Interface ELS100-24TXG Port C onfiguratio n Menu Th e Port C onf igur atio n Menu a l lows yo u to con figure port settin gs fo r a specific port.
9032947 ELS100-24TXG User Interf ace 45 Switch Statistics Screen The Switch S tatisti cs S creen provide s a su mmar y d i sp lay of port-l eve l statistics, and prov ides access to the Port S tatistics screens. You can also clear or refresh th e statistics.
46 ELS100-24TXG Us er Interface ELS100-24TXG Switch Su mmary Screen The Switch Summary Screen allows you to display sum total statistics for al l ports of t he s witch . You ca n a lso c lea r or r e fresh th e stati stics. Se l ect s from th e Switch S t atistics Screen to view the S wi t ch Summary screen .
9032947 ELS100-24TXG User Interf ace 47 Port Stat istics Screen The P or t Statistics Screen allows you to displa y statistics for each p o rt o n the s wi tch. M any o f these statistic s co r respond to the Statisti cs grou p of RMON. You can also refresh or clear the sta tistics.
48 ELS100-24TXG Us er Interface ELS100-24TXG Figu r e 3-21 P ort Stat istics Screen (conti nued) Fiel d D e scription Mult i ca st s Tran smitted Total number of mul tic ast fr am es t rans m i tted on t he po rt. Mult i ca st s Rec ei v ed Tot al number of m ul tic ast fr am es re ceiv ed on the po rt.
9032947 ELS100-24TXG User Interf ace 49 Gen eral Inform ation Screen The General Inform ation Screen allows you to view general system inform ation. Select e fro m th e Main Menu to view the Gen eral Inform at ion Sc re en .
50 ELS100-24TXG Us er Interface ELS100-24TXG Downlo ad Soft ware Menu Th e Downloa d Softwar e Menu al lows you to s e t up and i n itiate a s oftw are downlo ad.
9032947 ELS100-24TXG User Interf ace 51 Save Cu rrent Co nfigurat ion The Save Curr en t Conf i g urati on scre en ensur es that al l ch anges m ade to the ELS100 -24TXG switch via th e console menus will b e stored in t he event of power outa ges or power cycle s.
52 ELS100-24TXG Us er Interface ELS100-24TXG Reset Th e Rese t scre en al low s you t o perf orm a sw i tc h ha rdware reset . You are firs t pro m p ted as to whethe r or not to save the current sw itch co nfigu ration . To reset the switch, d o the fol lowing: 1.
9032947 Config uring & Monit oring The Switch 53 4. C ONFIGU RING & MONITORI NG THE SW ITCH Co mmo n T ask s The switc h co nsole m enus al low yo u to mod ify de fault swi tch setti ngs and con figu r e the s wi tch fo r net work m a nagemen t.
54 Confi guring & Monitori ng The Swi tch ELS100-24TXG Settin g Password Protection Th e ELS10 0-24TX G switch is fa ctor y- confi gur ed with a ccess rig hts to the consol e menu s set to REA D / WRITE. T hi s setting a llows a n yone to u se t he conso l e menu s to mo dify any o perat iona l par ameter .
9032947 Config uring & Monit oring The Switch 55 Chec king N etwo r k Co nfigu ration Status To check co nn ection status fo r the networ k, do the fo llowi ng: 1. Sele ct Po rt Me nu fr om the M ain Men u. If a net wor k ca ble i s pro per ly co nnec te d to a po rt , th e Li nk St at us f or the po rt r ead s C ON NE CTE D.
56 Confi guring & Monitori ng The Swi tch ELS100-24TXG 5. Sel ect one or mor e Trap Dest in ation en tries fr om th e menu and en ter the a pprop ria te IP a ddresse s. 6. Fo r ea ch t r ap de st inat io n ent er ed, a c orr esp ond in g co mmun it y na me sho ul d be ent er ed.
9032947 Config uring & Monit oring The Switch 57 Dow nloa ding a Software U pgrade You c an upgr ade t he opera tional softwa re i n the ELS 100 -24T XG switc h wi tho ut phy sic all y op ening th e switch or bein g in the same lo cation.
58 Confi guring & Monitori ng The Swi tch ELS100-24TXG Downlo adi ng Via TFTP To perform a TFTP downl oad , yo u must f i rs t config ure th e E LS1 00- 24TXG switch.
9032947 Config uring & Monit oring The Switch 59 To configur e Span ning T ree P aramete r s, do the foll owing : 1. Sel ect S witch Conf ig uration M enu from th e Ma in Menu.
60 Confi guring & Monitori ng The Swi tch ELS100-24TXG Con figurin g Class of Service Y ou ca n configur e Class o f Serv ic e pa rame ters usi n g the Cl a ss of Se rvice Con figu r a tion Men u. This men u permi ts you to co nfigur e priority leve ls to tr aff ic be in g for war de d thr ou g h th e s wi tch .
9032947 Config uring & Monit oring The Switch 61 3. Sele ct Po rt N ame an d e nter a Port Nam e . Press [En ter]. 4. Sele ct Port Enable to togg l e be twee n enab lin g (Yes ) and disab lin g (No ) the port( s ).
62 Confi guring & Monitori ng The Swi tch ELS100-24TXG Th ere a re th ree typ es of di sp ositions ass ocia ted with ea ch add ress in the fo rw ardi ng ta bl e: • For war d, which d irect s pa ckets des t in ed for a s pe ci fi c MA C ad dress to a s p ecifi c por t.
9032947 Config uring & Monit oring The Switch 63 Conf igur ing B road c a st Cu toff Rat e This se tting aff ects the t hrottli ng of excessi ve broa dcast or un i cast pac kets with unknow n MAC address es being handle d by the swit ch.
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9032947 SNMP Management 65 5. S NMP MANAGE MENT The SN MP Pr otocol SNM P (Si mple N et work Managem ent Proto col) is a co m muni cati on pro tocol d esigned specifi cally for the pu rpos e of man aging d evices or ot her e lements on a n etwork.
66 SNMP Management ELS100-24TXG Th ere are three m ain ope r ations def ined in SN MP: • Oper ati on s tha t re ad i nf or ma ti on f ro m th e ma na ged dev ic e , s uch a s thos e used to obtai n statu s or sta tis tical data, ar e called GET oper atio ns.
9032947 SNMP Management 67 This MIB re ports in formati on ab out the pr otocol s and network interfa c es sup porte d on t he age nt it self, a s well as othe r gen eral info r matio n. The MIB i s divid ed in to a num ber of grou ps, eac h of whic h cor res pond s to a spe cif ic pr otocol or set of informati on.
68 SNMP Management ELS100-24TXG various syste m, switch, and port leve l information. System info rmation MIB varia bles are sh own in T a ble 5-1, swi tch in form ation v ari ab les in Ta ble 5-2 , a nd port v ari a bles i n Tabl e 5-3. Ta ble 5-1 . S ystem In f ormati on Vari ables Table 5-2.
9032947 SNMP Management 69 Table 5-2 Switch Inf ormation Variables (cont inued) Variab le Desc ri pt i on Sw i tc hMirror edPort P ort t o be mirror ed from. Sw itc hMirror ingP ort Port to be mir ror i n g to. Sw i tc hXmit Mirro rEnable E nable/di s able mi rrori n g of t rans mitted traffic ou t of the mirror ed port to t he m i rror ing port.
70 SNMP Management ELS100-24TXG T abl e 5- 3. Po rt Va ri ab le s Com piling MIB Exten sions: Ca blet ron Web site Th e M I Bs suppor ted by th e ELS10 0-24T X G switc h must be com pil ed into t he SNMP network managem ent pla tform be fore t he switc h c a n be man aged.
9032947 Technic al Specifi cations 71 APPENDIX A. TECHNI CAL SPECIFICA TIONS Genera l Standa r ds Comp lia nce IE EE 802. 1D Tr anspar ent Bri dging Sp ecific atio ns (ISO/ IEC 10 03 8) IEEE 8 02.1p Traffic Cla ss Exp editing and Dy nam i c M ultica st Filter i n g IE EE 802.
72 Techni cal Specific ations ELS100-24TXG Electric al Spe cifi cat ions Inp ut v ol t ag e: 100- 24 0 VA C I npu t freq uency: 50- 60 Hz Max imu m pow er con sumptio n: 75 VA Physic al Height : 1.75 in. (4.4 cm) Leng t h: 16. 0 in . (4 0. 6 cm ) Wi dth : 17.
9032947 Technic al Specifi cations 73 Port Specif ications Console Por t Tab le A-1 shows th e co nsole port pin as signmen ts. Ta b l e A- 1. R S -232 C onsole Port Pin As signm ent s 10B ase-T an d 100 Base-TX Por ts Tab le A-2 shows th e 1 0Bas e-T/10 0Bas e -TX p inout s.
74 Techni cal Specific ations ELS100-24TXG M DI/ MD I-X Cr oss ov er Ca ble Wi ring Fi gu re A-1 s how s the wi r ing s che me for impl em e nti ng a cro ssover cabl e if needed for conn ection to the swit ch’s 10 Base-T o r 100Bas e-TX po rts. S uch a ca ble may b e requi red wh en con necting th e swi tch to anot he r switch or a hub de vice.
9032947 Technic al Specifi cations 75 Coun try-Spec ific Req uireme nts Tab l e A- 3 lis ts t he pow er c o rd set r eq ui r em ent s by c o unt ry and id en ti fies the a ccredi ted agen cy with in th at coun try.
76 Techni cal Specific ations ELS100-24TXG Note 2 Flex ib l e cord m ust be Type SV, SJ, SPT or eq uivale nt, No. 18 AWG, 3- co ndu ctor . Wal l p l ug must be a tw o-p ole groun ding ty pe wit h a NE M A 5- 15P (15A, 125V) or NEMA 6 - 15P (1 5A 250 V) c onf igur ation.
9032947 Spannin g Tree Concept s 77 APPENDIX B. SPANNI NG TREE CONC EPTS Genera l The IEEE 8 02. 1D Sp anning T ree Pr oto col res olve s the pr oblem s of phy sical l oops in a networ k b y est abli shi ng on e prim ary path between any two switch es i n a netw ork.
78 Spanni ng Tree Concept s ELS100-24TXG Spa nni ng Tre e Prot ocol in a Netw ork Figu re B-1 i llustr at es th e u se o f th ree E LS100-24 TXG swi tche s to est abl i s h an ef fec ti v e Sp an ni n g Tr ee c onf ig ur at io n.
9032947 Spannin g Tree Concept s 79 Table B-1. S panning Tre e Protocol De faults For det aile d info r matio n on the o pera tion of th e Spa nning Tree Protoc o l, con sult S ection 4 of I EEE Stan dard 802.
80 Spanni ng Tree Concept s ELS100-24TXG Comm unica ting B etween Bridg es Per iod ic all y, all dev ic es runn in g th e Sp an ni ng Tr ee Pr ot oco l on a n etw or k t ransm i t packets to each o ther “i n care o f” the Br i dge Gr oup Addr ess whi ch all bri dges sha re.
9032947 Flow Cont rol 81 APPENDIX C. FLOW C ONTROL Flow contr ol i s a mec han ism w h ich a llows you to p rotect the sw itch fr om ove rload cond itions a nd to keep ad dition al tr affic off the net work w h en exce ssiv e con gest i o n will r esu l t .
82 Flow Control ELS1 00-24TXG Th e ELS100- 24TXG Por t Stati sti cs Sc reen i n dicat e s the numbe r of pa use f rame s that ha ve been sent, i ndicat ing th e n umber of time s full du plex flo w co ntrol h as o ccur r e d.
9032947 Virtua l LANs (VLANs) 83 APPENDIX D. VI RTUAL LANS (VLAN S) VLAN s and F ram e Tagg ing The EL S100- 24TXG sup ports IEEE 80 2.1Q -comp l ia nt virt ual LANs (VL AN s).
84 Virtua l LANs (VLANs) ELS100-24TXG t o all conn ected stati ons an d interfa ces. When fr a m e s are forw arded ba ck t o des tinati on end s tations , the tag m ay or may not be str ipped off, dep endin g on t he c onf igur ation of the en d st ation an d the sw itch port.
9032947 Virtua l LANs (VLANs) 85 VLAN Egress Ports The VLAN Egress Ports parameter is u sed to assign ports to a V LAN for carr ying VLAN tagg ed fram es ac ross a networ k. T he a ssignm ent of egr ess por ts does n ot affec t the assi gnment of VLAN I Ds to fr ame s enter ing the switch.
86 Virtua l LANs (VLANs) ELS100-24TXG VLAN Hybrid Ports A VLA N Hybri d port i s used to conn ect one or more V LAN-awar e or V LAN- una w ar e d ev ic es to the swit ch. Bo th t agged and untag ge d fr am es can be r e cei v ed an d tra n s mit t ed on Hy b rid po rts .
9032947 Virtua l LANs (VLANs) 87 In Ex a mple 3 in Figure D- 3B, an un tagged frame arrives at the le ft port (1) . The swi tch tags t he fra me wi th the P VID fo r VLAN X (2). Sin c e the des tinat ion MAC add ress ha s alr eady be en lear ned a s a ta gged statio n on VLA N X on t he outg oing p ort, the fr ame is sent ou t with a VL AN X ta g.
88 Virtua l LANs (VLANs) ELS100-24TXG VLAN App lica tion Example A networ k a dmini s t rator c an u se VLANs to def ine user g roup s rega rdl ess of the p hysic al L AN segm ent to whic h they are co nnec ted. The use of Hybrid and Access links can further refine traffic flow in a multi-switch env ir onmen t.
9032947 Class Of Serv ice 89 APPENDIX E. CLASS OF SERV ICE Cl ass o f Servi ce suppor t o n the E LS100- 24 TXG a l lows you to a ssign mi ssio n-criti cal data a hi ghe r pr iorit y thr ough the sw i t ch by del aying l ess cri ti cal tr affic dur ing per iod s of cong estion .
90 Class Of Service ELS100-24TXG Fi gure E-1 s hows pri ori ty queu ing opera ting w ithi n a switc h. F rames ente r in g the switc h thro ugh ports 1 and 4 are tag ged as nor mal traffi c a nd pla ce d in a nor ma l pri or it y que ue on th e o ut b ou nd po rt .
9032947 Acronyms & Abbreviat i ons 91 APPENDIX F. A CRONYMS & ABBRE VIATIONS Term Definition 10Bas e-T 10 Mbps twist ed-p air Ethernet 100Bas e-TX 100M bps t wisted-pair Fast E therne t 1000Ba.
92 Acrony ms & Abbrevi ations ELS100-24TXG Term Definition MIB Managemen t I n for m atio n Bas e PVID Port VLAN ID RFC Reque st for Com m ent RM O N Remo te Moni t ori n g RX D Re cei ve Dat a SN.
9032947 In dex 93 INDEX 1000Bas e-X, 1 000Bas e-SX/LX/ CX po rts, 2 9 10Base -T/100B ase-TX P inou ts, 81, 83 802.1D, 14, 7 9, 87 Span ning Tree Protocol , 66 , 85 802.1p, 10, 18 , 79, 9 7 802.1Q, 1 0, 79, 91, 9 2, 93 802.2, 7 9 802.3, 2 8, 79 802.3i, 9, 79 802.
94 Index ELS1 00-24TXG H Hello Time, 4 2 I inspect i ng yo ur s h ipment, 21 IP address assigning , 62 L LED mode but ton, 11 , 12, 1 3 defined, 11 LEDs , 11, 12, 13 local ba ckbone applicat ion, 20 l.
9032947 In dex 95 Spanning T re e Por t Co nf igu ration Menu, 43 Spanning Tree P roto c ol d e fa ul ts , 87 Stand ards C ompliance IEE E, 7 9 store -and -forwa rd, 14, 87, 100 Switch Conf iguratio n.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Cabletron Systems ELS100-24TXG è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Cabletron Systems ELS100-24TXG - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cabletron Systems ELS100-24TXG imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cabletron Systems ELS100-24TXG ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cabletron Systems ELS100-24TXG, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Cabletron Systems ELS100-24TXG.
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