Instruction/ maintenance manual of the product 5102B-EE 3Com
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ONline Ether net Bri d ge Module Installati on and Op erat ion Guide Doc ument Nu mber 17-0 0104-5 Print ed March 1 996 Mod el Nu mber: 51 02 B-EE Software V ersion: 2.12 3Co m Co rpo ration 118 T urnpike Road South bo rough , MA 0 177 2- 188 6 U.S.A.
ii O Nlin e Ethern et Brid ge M odule Install ation and O p eration G uid e Federal Commun ication s Co m m ission Notice Th i s equipment has been t este d and f o und to com ply with the limits for a Class A d i gital device, pursu ant to P ar t 1 5 of the FCC Rules.
ONli ne Ethern et Bri dge M od ule In st al latio n and Operatio n G uid e ii i 3Com Laser Librar y , 3Com OpenHub , 3TECH, FDD ILi nk, FMS , G-Man, MultiProbe, Net P robe, OnDeck, ONdemand, ONline, Power R ing, St a ckJa ck, Stack Way , St a r -T ek, S witchCe ntra l, and T ranscend are trademark s of 3Com Corporat ion.
iv O Nline Ethern et Bri dge Mod ule Inst allatio n and O p eratio n G uid e.
Contents ONline Ether net Br idg e Module In stallatio n and Op eratio n G u ide v How to Use Th is Guide Audien c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv Structu r e of This Guide . . . .
vi O Nline Eth ernet Br idg e M o dule In stallation and O peration G uide Chapter 2 — In stalla tion Precautionary Proc edu res . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 1 Unpackin g Procedu res . . . . . . . . . . .
ONlin e Ethernet Brid ge M odule Install ation and O p eration G uid e vii Establishing the User Pas sw ord . . . . . . . . . . . . . . . . . . . . . . . . . 3 -14 Confi gur ing O ther B ridg e Mo dul e Param et ers . . . . . . . . . . . . . 3 -14 Bridge M od ule Name (Al ia s) .
viii O Nlin e Ethern et B rid ge Mo du le Installat ion an d O perat ion G uide Chapter 6 — Firmware Down lo ad I n structio ns Down load Requ irem ent s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Down load Backgr ou nd Info rm atio n .
ONli ne Ethern et Bri dge M od ule In st al latio n and Operatio n G uid e ix Cabl e Con fig urat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6 Troublesh ooting Transceiver Cables . . . . . . . . . . . . . . . . . .
x O Nline Ether net Br idge Module In stallatio n and Op eratio n G ui d e.
ONli ne Ethern et Bri dge M od ule In st al latio n and Operatio n G uid e x i Fig ures Figure 1-1 . Bridge Mod ule Hardw are D esign . . . . . . . . . . . . . . . . . . 1-7 Figure 1-2. Sample Br idg e M od ule Con figu ration . . . . . . . . . . . . .
xii O N lin e Ethernet B rid ge Modu le Installation an d O perat ion Gu ide.
ON line Ethern et Brid ge Mo du le Installation an d Oper ation G uid e xii i Ta ble s Table 1-1. Packet Distribution by Bridge Modu le . . . . . . . . . . . . . . . 1-6 Table 2-1. Bridge Mod ule LEDs , Button, and Connect ors . . . . . . . . . 2- 5 Table 2-2.
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ONlin e Ethernet Brid ge M odule Install ation and O p eration G uid e xv How to Use This G uide This guide descr ibes the architecture, princ ipal featu res, operating char acteristic s, and di agno stic proced ures of t he ON lin e ™ Ethernet Bri dge Module.
xvi O Nline Eth ernet Br idg e Mo dul e In stallatio n and O peratio n G u ide Structu re of This Gui de This guide co ntains six c hap ters and fo ur app endices: Chapter 1, Intr oducti on – In trodu ces the O Nli ne Ethern et Bridge Module fr om a functional p oint of view and expl ains the fr o nt panel LEDs, button, and c onn ecto rs.
ON line Ethernet B ridge Mo dul e Installati on an d O perat ion G uide xvi i Appendix E, - T echnical Support – Lists th e variou s m ethods for contact ing the 3C om tec hni cal suppor t org anizat ion an d fo r accessing other produ ct sup po rt servic e s.
xviii O Nlin e Ethernet B ridge Mo dule Installat ion a nd Oper ation G uid e Docu men t C onve nti ons The follow ing doc um e n t con ven tion s are u s ed in this manual: Con ventio n Indic ates Exam p le Couri er t ext User in put In th e A gent In form ation Form , enter MI S i n t he Ne w Co ntact field.
ON line Ethern et Brid ge Mo du le Installation an d Oper ation G uid e xix Related Do c um ents This section provi des in formation on suppo rting d ocum en tatio n, inclu din g: ❑ 3Com Doc ument s ❑ Reference D ocumen ts Note: A Note . The inform a t ion i s impo rtant Note: Use STP l obe cables f or your system.
xx O Nline Ether net Br idg e M od ule In stallatio n and Op eratio n G uid e 3Com D ocu men ts The follow ing doc um e n ts provid e ad diti on al info rmatio n on 3C om products: 17-Sl ot ONlin e Sy.
Introd uct ion 1 - 1 1 Introduction This chapter descr ibes the ON line™ Ether net Brid ge Mo dule basic capabiliti e s, operatio n, an d system co nfigu ratio n alter natives. Th e ONlin e Ethern e t Bri dge M od ule i s referenced throu gho ut t his manu al as t he Bri dg e Modu l e.
1 - 2 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e ❑ Mon ito r you r exten ded LAN using n etw ork m anagem ent features inclu din g : – T r affic c ou nters – Diag.
Introd uct ion 1 - 3 Dependi ng u pon the ty pe of b ridg e connect ion y ou select (bac kplan e or the AUI conn ection), an individual port can connect to any of the fo llowin g devices: – ON lin e.
1 - 4 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Othe r Bridges The Bridge Module can operate on an expand ed LAN th at contains other bridges un der th e follo w ing t wo c onditi on s: 1. The other bridges must forward packets transparently at the data link layer .
Introd uct ion 1 - 5 More inform at ion abou t the Span nin g T r ee proto co l is inclu ded in Appen dix B . T raff ic L oca lizatio n The Bridge M od ule is a packet s t or e- and- forward device th.
1 - 6 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e bridge. The Bridge looks at the source address of each packet generat ed on the subnetw or k and creates a database containing these addres ses. Note: If a nod e does no t gener ate any packets, its loc ation cannot b e d ynam ically l ear ned by the Bridg e M od ule.
Introd uct ion 1 - 7 2. It us es dedicated hardwar e to accelerate the address filtering operati on to ensure the highest po s s i ble performa nc e in an 802.
1 - 8 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Downlo adable Firmwar e As firm ware upgrades become available fr om 3C om, yo u can d ownlo ad this new firm war e to y ou r Bri dge M od ule usin g an IB M-com p atib le PC connec ted to the m odule's RS-232 serial po rt.
Introd uct ion 1 - 9 This version of the Bridge M odule soft ware also provides S NMP (Sim p le Networ k Man agement Protocol), which allows the brid ge to be managed fr o m a SN MP-b ased netw or k man agem ent work station . The Bridge Module offers cap abilities to h elp manage you r extended LAN.
1 - 10 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Figure 1 -2. Sample B ri dge Module Configuration Caution: If you r extended LAN in cludes protoco l-speci fic ro u ters, make sur e the total number of routers in the extended LAN do e s not exceed the maxim um allowed b y the protocol fo r a si ngl e L AN .
Intro du ctio n 1 - 11 Figure 1 -3. Backplane Channel Bri dged to Broadband Segment Backpl ane Con nectio ns When you b ridge tw o ch annels usin g th e backpl ane as both p ort 1 and port 2, the maxi m um distance betw een two end-nod e devic es can be 8 000 meters ( 400 0 m on each side of the bridge).
1 - 12 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Figure 1 -4. Backplane C hannels Bridge d T ogether Diagn ostics an d Se lf-T es t On po wer -up, th e Brid ge M od ule .
Installat ion 2 - 1 2 Installa tion This chapter descr ibes the p recaution ary , un packin g, and i nstallati on procedures for the Br idg e Mod ule. It also pr o vid es illustration s of the mod ule and d escrib es th e front panel indicato rs, b utton, and connecto rs.
2 - 2 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e ❑ Do not remove the bo ard fr om its anti-stati c shieldin g bag until you are r ead y to inspect it . ❑ Hand le t he bo ard by t he facep late onl y . Use pr oper grounding tech niques wh en you install th e B ridge Modu le.
Installat ion 2 - 3 Summariz ed B rid ge I nstal lati on P rocedu r e The follow ing list summariz e s the pr ocedu re for installing an d op eratin g the Bridg e Mo dul e . ❑ Plug th e Bridge Mo du l e into the O Nl ine System Co nc en trat or w ith the loopb ack connecto r attached to the AU I port and ver ify inter nal diagn ostic s.
2 - 4 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Modu le Fro n t Panel The fr ont p anel has eight indicato rs (LEDs), one button, two c onnecto rs, and the m od ule extrac tor . The front panel indicators in form you of the operatin g state o f your B ridge M odu le.
Installat ion 2 - 5 Just p ull th e extract or lever d own to rem ov e th e m odule from the concen trato r . T a ble 2-1. Brid ge M odule LED s, Button, and Connectors Labe l Fu nctio n RX Indicates r eceive activity on the IEEE 802 .3 or Ethernet networ k conn ected to th at p ort .
2 - 6 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Dip Switc h es The Bridge M odule has one dip swi tch comp onent w ith 4 switches, located on the larger of the two boards on the mo dule. The sw itch e s on this dip switch enab le you t o set the ch annel s th a t are to be bridg ed tog ether .
Installat ion 2 - 7 Chann el-Select Switch Se ttings All ONline media modules are equipped with the technology to work w ith the ONline System Conc entrator's un ique T riChan nel Ar c hit ectu re. Thi s architecture lets you a ssign th e m odu le to any of th ree chan nels on th e ONline System Concentrato r backp lane.
2 - 8 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Related F eatures The fol low ing s e ction s describ e fun ctions that allow y ou to: ❑ check th e mo dule ' s .
Installat ion 2 - 9 Remote Network Manag emen t The ONline Ethern et Management Module (EMM ) and ON line T oken Ring Managem ent Mo dul e (TRMM) provide remote netw or k man agement capabiliti e s for the O Nline System C onc entr ator an d its mod ules.
2 - 10 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Pre-Install ation T e st When you install th e Brid ge Mo du le into the co ncen trato r , the unit perform s a self-t est to ver ify prope r o peration of the in ter na l h ardware an d com m unicatio n in terfac es.
Installatio n 2 - 11 Figure 2 -4 sho ws the in stallatio n of t he Bri dge M odule. Figure 2 -4. Installin g the Brid ge Module 4. F asten the th ree sprin g-lo aded screws on the front o f the Bridg e Mod ule fac ep late to th e con centrator with you r fin gers to provide ground - do n ot ov ertig hten .
2 - 12 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Note: The loopback connector must be attach ed to the AUI port or the self-test wi ll not f unctio n prop erly . If these altern atives fail to fix the p roblem, your un it is malfun ctio nin g.
Installatio n 2 - 13 C onnect ing a T erm in al Y ou access Bridge Modu le m anagem ent throu gh the m anagem en t interface - the RS-23 2 p ort on the front of t he modul e. Y ou can connect any device th at presents an ASCII asyn chron ous in terfac e, includ ing termin als, PC s capable of t erminal emulatio n, and mo dems.
2 - 14 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Once you h ave co nfi gured y our term inal to m a tch the facto ry defaul ts of the Bridg e M o dul e , you can connect a cabl e fr om th e term in al t o the RS-232 por t on th e Brid ge M odu le .
Installatio n 2 - 15 2. Plug th e transceiver cable int o th e jac k. 3. F irm ly push th e sl i de latch dow n u nti l it snaps int o the locking positi on. 4. Ge n tly p ull on the conn ecto r to m ake s ure the latch is s ec ure. 3Com recom m ends strain relief for this cable t o avo id plac ing un due str ess on t he con nec tor .
2 - 16 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide 2. Set the addr ess filtering attrib utes (har d -coded addr esses that are not to be fo rwarded to, or that shou ld always be forw ar ded to) using th e SET FIL TER com mand.
Installatio n 2 - 17 c. If you d o no t have a term in al con nec ted to either th e Brid ge Module or to a managem ent m odule, slide the module out from the con centrato r (using the mod ule extracto r) and manually set the dip sw itche s on the board to br idg e two c hann els.
2 - 18 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Confirmi n g B ridg e Operation Y ou con firm o peration o f the Bridge M od ule by sending packets betw een two Ethern et or two IEEE 802.3 no des on separate subnetworks.
Manag em ent Fu nc tion s 3 - 1 3 Ma nagement Functions This chapter sho ws yo u ho w to get started onc e you h av e installed th e Bridge M odule in y ou r con centrator an d also exp lains th e m an agement capabiliti e s of the Bridg e M od ule.
3 - 2 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Usin g Brid ge Man age men t This se ction expl ains ho w to access B ridge M an agem ent , ent er an d edit commands, get h elp, v iew , modify , and save parameters.
Manag em ent Fu nc tion s 3 - 3 C o m ma nd Co m p l e ti on Bridge M anagem e n t accep ts abbreviated c om m a n d inp ut throug h a feature c alled Com m an d Com pletion .
3 - 4 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e entering the letter S foll ow ed by [SP AC E] is not sufficien t for Brid g e Managem ent to determ ine which c ommand you are issui ng because there ar e three commands that start w ith S - SA VE , SET , and SHO W .
Manag em ent Fu nc tion s 3 - 5 Examin ing P aramete rs The SHOW comm and lists the cu rr en t value of any parameter you specif y . For exam p le, the SHO W S P ANTR EE c omman d display s the current spann ing tr ee param e ter s, a s show n belo w .
3 - 6 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Modifyi n g Parameters Parameter valu e s are stored in non -v olatile mem ory on the B ridg e M odule. Y ou r B rid ge M od ule unit is shi pped from t he factory w ith specif ic d efault parameter v alues.
Manag em ent Fu nc tion s 3 - 7 ❑ Filter ❑ Spantr e e ❑ T erm inal When y ou m ake co nfiguration chan ges usin g the SET comman d, these changes ar e effective im medi ately bu t ar e not saved permanen tly . Y o u must issue the SA VE com mand to keep th e new configuration values.
3 - 8 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e ❑ Set user passwo r ds SET D EVICE P ASSWO RD USER Re co mmend ed ❑ Set the Bridge Modu l e: Name, Man agem ent Pro.
Manag em ent Fu nc tion s 3 - 9 Bridge Ma nagemen t Parame ter Ove rview Bridge Managem ent param et ers fal l into f ive general catego ries: ❑ Manag em ent In terface ❑ Rem ote M anagem en t ❑.
3 - 10 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide These parameters setting s i nclude th e termin al's baud rate, data bits, parit y , and stop bits. Fo r ex am ple, the BAU D parameter det ermines the baud rat e at w h ich the R S-232 Bri dge Managem en t interface receives and transm its data.
Man agem e n t Fun cti ons 3 - 11 Once you h ave co nfi gured y our term inal to m a tch the facto ry defaul ts of the Bridge Module, p r ess [ENTER] and the foll ow ing head er and passwo r d pro m p t are display ed: co py righ t 1 992 Ch ipco m C orpo rati on O Nl in e Bri dg e Mo du le ( v2.
3 - 12 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Note: T ermin al values yo u s et using the S E T comman d are not saved perm a n entl y un til yo u issue the SA VE TERMI NAL command . On ce the value s ar e saved, if you log out or even if the power fails, the saved value s ar e retained.
Man agem e n t Fun cti ons 3 - 13 Use the SET DEVICE co mmand to m odif y passwo rds. Both the administrato r and the user passwo rds can contain u p to 15 ch aracters. Alphanumeric and sp ecial characters are allowed, including [DEL] and [BS]. The Bridge M od ule has tw o levels of p assword co ntrol: 1.
3 - 14 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Establishin g the User Password Use the SET DEV ICE P AS S W ORD USER co mmand at the manag ement pro mp t to establish a user pa ssword. Note that y ou must be logged in a s the adm inistr ator to change the u ser pa ssword.
Man agem e n t Fun cti ons 3 - 15 Bridge M odule Name ( Alias) T o make com municatio n with yo ur remote Br idge Mo dul e s easier , we r ecommend that yo u assign a unique name to each Bridge Mo du le. Y o u can then u se this name (instead of th e IP add r ess or Eth er net MAC address) to r ef erence the appropr iate Brid ge M od ule.
3 - 16 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Contact Name an d L ocation Y ou should ent er the nam e of an ap propr iate service co ntac t and th e concen trato r loc ation at t his tim e to p rovid e a han dy ref erence should there be a net wor k problem .
Man agem e n t Fun cti ons 3 - 17 Setting SNMP V a lu es If you plan to m anage the Bri dge M od ule th rough an S NMP work sta tio n you must set the fo llowing attr ibutes: ❑ IP Address ❑ Co mmu.
3 - 18 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Defaul t Gateway The default gatew ay is the IP address of the gateway th at will receive and forward packets whose ad dr esses are unknown to the local netw ork.
Man agem e n t Fun cti ons 3 - 19 Remote M an agem ent Remote Managem ent is used to set and view parameter v alues for a r emote Bridge Module, Midnight Bridge, or network manag ement module.
3 - 20 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide AGEING_TIME The AGEING_TIME parameter t ells the B rid g e Module when to “age out” (automatically remove) addr esses fr om the dy n a mic filterin g t able (default ageing peri od is 5 m inutes) .
Man agem e n t Fun cti ons 3 - 21 When attach ed to a sub netw ork , the Brid ge M odule dy nam ic ally lea rns the address es of t he nod es on the subnetw ork. The Bridge Module lo oks at th e source address of each p acket generated on the sub network and creates the dynamic filter tab le from these ad dresses.
3 - 22 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Statistics Parameters Bridge M anagem e n t statistic s p rovide usefu l inf ormat ion regarding traf f ic loading and error con dit ions .
Man agem e n t Fun cti ons 3 - 23 The MONITOR c ommand w ill, by default, mo nito r th e bridg e statistic s an d use a time value of 5 m inutes if you p r ess [ENTER] instead of inpu tting a time and an o ption i n the command line.
3 - 24 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide If you have made changes and yo u have not saved t hese changes, LOGOUT p ro mpts you a s f oll ows: OE BM > log out [EN TE R] WA RN IN G: Save u nsav ed ch ange s befo re l ogo ut.
Managem ent Com mand s 4 - 1 4 Ma nagement Com mands This chapter prov ides a comp lete alphab etized l isting of th e ONlin e Ethern et Bridge Mod ule comm ands.
4 - 2 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e A variable that requir e s spec ific user in put is indicated by lower case text surrounded by curly brackets. For exam ple, {new p assword}. When you type in th e variabl e , do no t includ e the an gle brackets as part o f the var iable strin g .
Managem ent Com mand s 4 - 3 Command Summary T able 4-1 di splays a summary of Bridge M odule com mands, their parameter s, and the pag e numb er where they are located in this ch apter . This list is comp iled b y co mmand t ype: G eneral, Co nfi gu ration, Status, Statistics , Mainten ance, and Special.
4 - 4 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Confi gur ation CLEA R comm u nity 4 - 12 coun t er 4 - 13 filt er 4 - 14 last_error 4 - 15 REVERT alert 4 - 33 all * 4.
Managem ent Com mand s 4 - 5 Confi gur ation (contin ued ) ch ang e 4 - 38 he ll o 4 - 3 8 SE T B RIDG E ageing_ti me 4 - 41 channel * 4 - 42 dip_co nfi gu ration 4 - 43 side_switch _m od e 4 - 44 SE .
4 - 6 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Confi gur ation (continued) SE T FI L TER (co nt.) p r otocol_id_table 4 - 66 static_address_table 4 - 67 SE T S P ANTR.
Managem ent Com mand s 4 - 7 Status (continued) SHO W CO UN TE R (cont.) ports 4 - 100 protoco l s 4 - 104 spantree 4 - 106 SH OW DEVI CE none 4 - 108 SHOW FI L T E R d ynam ic _address_table 4 - 11 1.
4 - 8 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Mainten anc e MA INT A IN dow nlo ad ou t_of_b and 4 - 23 PING ip_ address 4 - 28 RESET DEVICE name 4 - 2 8 none 4 - 32 Special F ORCE none 4 - 16 REMOTE_LO GIN ip_addres s 4 - 30 mac_addr ess 4 - 30 na me 4 - 3 0 T able 4-1.
Managem ent Com mand s 4 - 9 ? Use the ? command to l ist the available Bridge Mod ule comman d choices and p aram eter op tio ns. For mat ? {co mman d} ? Param eters non e Exam p le The follow ing com m and displays th e list of Bri dg e Mod ule co mmand s available u nder the adm in istrator password.
4 - 10 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Exam p le The follow ing com m and displays th e list of Bri dg e Mod ule co mmand s available u nder the user passwo rd. Note that the ? character does not display on the scre en when typed, bu t is shown in the exam ples for clarity .
Manag em ent Com m ands 4 - 11 CLEAR COMMUNIT Y Use the CLEAR C OMMU NITY c ommand to c lear an entry f ro m t he com m un ity tab l e . This comm and is only av ai lable in adm ini strator mode.
4 - 12 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide CLE AR COUNTE R Use the C LEAR C OU NTER co mmand to cl ear all coun ters or a speci fic statistical count er .
Manag em ent Com m ands 4 - 13 CLE AR FIL TER Use the CLEAR FIL TER command to cl ear an entry from the proto col id table or the stati c add r ess table.
4 - 14 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide CLE AR LAST_ER R OR Use the CLEAR LAST_ERR OR co mmand to clear the file that contains informa tion on the last fatal error that occ ur red at the B ridge Mo dule . This com m and is on ly avail able in adm i nistr ator m o de.
Manag em ent Com m ands 4 - 15 FOR CE Use the FOR CE co mmand to ov errid e the current Brid ge Mo du le administrato r password. It should onl y be used in the case when the password w as illegally c hanged or f orgotten. The F ORC E c omman d can only be ent ered at the login prompt.
4 - 16 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide If either respon se t o the LED i nterp retation p rompts is inc orrect or y ou exceed the 30 second time lim it, the bridg e disp lays the message “ A ccess Denied” and perf orms a reset with the current adm in istrato r passwo rd r etained.
Manag em ent Com m ands 4 - 17 succe ssfully interp ret the first LED patter n, a second patter n i s display ed which you m ust also interpret. If you suc cessf ully i nterp ret the second patter n, the bridge wi ll r eb oot. A t t he Password: pr o mpt you will be abl e to press car riage return to access admin i strator mod e of the br idge.
4 - 18 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide HELP Use the HELP c omm and to g et information co ncern ing the meaning o f the com mand s. The HELP ? comman d will displ ay a li st of possible comp letion s fo r the HEL P command .
Manag em ent Com m ands 4 - 19 ping r emo te _l og in r ese t * r eve rt * s ave * set * show H el p pr ovi de s us ef ul info rm at ion to rem ind a k nowl ed ge ab le u se r of th e me an in g of the co mm ands . The co mm ands w it h an as te ri sk are ad mini st rat or c om mand s only.
4 - 20 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Complet ion Li st A completio n list displays a list o f available c ho ices with wh ich to com plete a com mand line. A completio n l ist is ob tainab le at any po int by t ypi ng “?.
Manag em ent Com m ands 4 - 21 LOGOUT Use the LOGO UT com mand to end a loc al or remote log in session. For mat LOGOUT Param eters non e Exam p le Loggi ng o ut from a l o c al B rid ge Mo du le : O .
4 - 22 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide MAINT AIN Use the MAIN T A IN comma n d to enter m ainten anc e mo de. Main tenan c e mode allows you t o download new software to the Bridge M odule through the DO W NLO AD com m and.
Manag em ent Com m ands 4 - 23 Descri ption The MA IN T AIN DO WNL OAD OU T_O F_BAN D com mand enables you to down load new soft ware t o th e Br idg e Modu le via th e term i nal port . No te that y ou c annot enter t he MA IN T AIN com mand if you a re connect ed to a r emo te B rid ge Mo dule throu gh th e R EM OTE_L O GIN com mand .
4 - 24 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide MONITOR Use the MO NITO R com mand to perio dic ally display statisti cal inf ormat ion . The s tatistic s ar e reported periodic ally based upo n the time t hat yo u r equest.
Manag em ent Com m ands 4 - 25 Ac ti ve H ell o Ti me 2 Ac ti ve F orw ard Dela y 1 5 A ct iv e Lis te n Ti me 20 Pr es s CTR L-C to exi t. Exam p le This exampl e displays proto co l statistic s every 30 seco nds.
4 - 26 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide PING Use the PIN G com man d to verify w hethe r a devic e is activ e . Not e th at w hile execu tin g th e PIN G co m mand , bridg ing per form ance will be affected for t he du ratio n of t he com m and.
Manag em ent Com m ands 4 - 27 REMOT E_LO GIN Use the REM OTE _ LOGIN command t o log into any remote Br idge Module or other m anageabl e 3C om device o n the n etwork an d manage it fro m th e loca l t erm in al.
4 - 28 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Descri ption Use the R EMOTE_LOGIN c ommand and t he address or name of the re mote Bridge Module (or other manageab le 3Com dev ice) to which you w ant to connect. Y ou must be connected, v ia a ter minal, to a local Bridge M odule before you can issue thi s comman d.
Manag em ent Com m ands 4 - 29 RESE T DEVICE Use the RESET DEVICE command to res et the Brid ge M od ule. This com m and is on ly avail able in adm i nistr ator m o de. For mat RESET DEVICE Param eters non e Exam p le O EB M> r ese t de vi ce [ENTE R] R es et ti ng de vi ce Descri ption The RESET DEVICE co mm and resets the Bridg e Mo du le.
4 - 30 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide REVERT Use the REVERT command to return to the con figuratio n setti ng s that w ere in ef fect as of the last sa v e . This com m and is on ly avail able in adm inistrator m o d e.
Manag em ent Com m ands 4 - 31 Descri ption The REVER T c ommand allo w s you to return to the l ast configurat ion valu e settings saved. For exam ple, if you spec ify REVERT ALER T , any SET ALERT changes you made (after the last SA VE ALERT) are cancelled.
4 - 32 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SA VE Use the SA VE comman d to save the current co nf igu ratio n values established by th e SET command. These configurati ons ar e saved in non-v olati le EEPRO M m em ory .
Manag em ent Com m ands 4 - 33 Descri ption Parameter valu es established by the SET command are effective immediately but are not automatic ally saved. Use the SA VE co m mand to perma nentl y save the se value s. Only saved values ar e in effect upon r eset.
4 - 34 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SE T Use the SET comman d to chang e alert, bridge, com m unity , dev ice, spantree , and term in al attribut e s. T he S ET c omma nd requi r es a param et er to set spec ific attrib ut es.
Manag em ent Com m ands 4 - 35 SET ALE R T Use the SET ALER T com m and to enable or disable th e notification of an alert statem ent (tr ap) from t his Bri dge Mod ule to t he design ated tr ap r eceiver (SNMP w orkstati on).
4 - 36 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide authenti catio n - when a user t ries to ac cess the B ri dg e M odule and the IP Addr ess o f their w orkstat ion o r d evice i s not listed in t he c omm uni ty table with the proper access ( i.
Manag em ent Com m ands 4 - 37 S ET BR IDG E Use the SET B RIDGE command to change the br idge specif ic config uration parameter s. For mat SET BRIDGE {parameter} Param eters {parameter} = ageing_ti me chann el dip_co nf igu ration side_s witc h_m od e Descri ption The SET BRIDGE c ommand enables yo u to change the bridge configuratio n.
4 - 38 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET B RIDGE A GEING_ TIME Use the SET BRIDGE AG EIN G _TIM E command to set the rate at w hich addresses are aged ou t of t he dynam ic fi ltering tabl e.
Manag em ent Com m ands 4 - 39 SET B RIDGE C HANNE L Use the SE T BRIDG E CHANNEL command to select the two channels you want to b ridg e . Not e that th is comm an d must be used with c autio n. If u sed im proper ly , it has the potent ial to di sr up t the netw o rk .
4 - 40 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET B RI DGE D IP_C ONFIGUR A T ION Use the SET BRIDGE DIP_C ONFIGURA TION co mmand to d etermine whether the channels t.
Manag em ent Com m ands 4 - 41 SET B RIDGE S IDE _SWI TCH_MODE Use the SET BR IDGE SIDE_SW ITCH_M OD E com mand to enabl e or disabl e the Br idge Mo dul e's ability to detect w hen an Eth er net ad dress in th e address tab le ha s s witch ed from one p ort to th e o ther .
4 - 42 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET COMMUNI TY Use the SET C OMMUNI TY c omm an d t o cr eate a n en try in t he c ommu ni ty table.
Manag em ent Com m ands 4 - 43 Exam p le The follow ing ex am ple creates the commu nity table entr y called ncs and specifies that all traps be sent to the IP address 1.
4 - 44 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET DE VICE Use the SET DEV ICE command to ch ang e the Brid ge M odule devi ce config ur ation p arameters.
Manag em ent Com m ands 4 - 45 SET DE VICE CONT ACT Use the SET DEV ICE C ONT AC T command to enter con tact informatio n, such as service c ontact's n ame, comp any , and telephon e n umb er .
4 - 46 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET DE VICE DE F AUL T_GA T EW A Y_P ORT1 Use the SET DEV ICE D EF AUL T_GA TEW A Y_PO R T1 command to set the IP address of the gateway th at should be used when por t 1 on the Bri dge Modu le does no t recogn ize the receiver add ress on the local netw o r k .
Manag em ent Com m ands 4 - 47 SET DE VICE DE F AUL T_GA T EW A Y_P ORT2 Use the SET DEV ICE D EF AUL T_GA TEW A Y_PO R T2 command to set the IP address of the gateway that sho uld be used w hen p ort 2 on th e Bridge Modu le does no t recogn ize the receiver add ress on the local netw o r k .
4 - 48 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET DE VICE DIAG NOSTIC S Use the SET DEV ICE DIAGN O STICS co mmand to enab le or di sable diagno stics du ring start-u p (or reboo t) of the B ridg e Mo dul e .
Manag em ent Com m ands 4 - 49 SET DE VICE IP _ADDR ESS_P ORT1 Use the SET DEV ICE IP_A DDRESS_PO RT1 comman d to set the Intern et Protocol add ress for po rt 1 o n the Br idg e Mo dul e. Not e that th is comm an d must be used with c autio n. If u sed im proper ly , it has the potent ial to di sr up t the netw o rk .
4 - 50 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET DE VICE IP _ADDR ESS_P ORT2 Use the SET DEV ICE IP_A DDRESS_PO RT2 comman d to set the Intern et Protocol add ress for po rt 2 o n the Br idg e Mo dul e. Not e that th is comm an d must be used with c autio n.
Manag em ent Com m ands 4 - 51 SET DE VICE LO CA TIO N Use the SET DEVICE LOCA TION command to describe th e ph ysical l ocation of the O Nlin e System Co nc entrat or in whic h th e Br idg e Modu le is inst alled.
4 - 52 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET DE VICE NAME Use the SET DEVICE NAME command to as s ign the Bridge Modu le a na me that can be used to ident ify it in addi tion to its IP address.
Manag em ent Com m ands 4 - 53 SET DE VICE P ASSW OR D Use the S ET DEVIC E P ASSWORD command to estab lish administrator and user passwords for th e Bridg e Modu le .
4 - 54 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide The adm inistrator passwo r d g ives the system administ rator access to all of the Bridge Mo dule comman ds.
Manag em ent Com m ands 4 - 55 SET DE VICE SQ E_MO DE Use the SET DEV ICE SQE_M ODE com mand to display SQ E (heartbeat) failures o n th e outp ut f ro m th e MO NITO R and SHOW co mmand s .
4 - 56 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET DE VICE SU BNET_MAS K_PO RT 1 Use the SET DEV ICE SU BNET_MASK_PO RT1 co mmand to speci fy the subnetw ork m ask f or y our t ype of In tern et class.
Manag em ent Com m ands 4 - 57 SET DE VICE SU BNET_MAS K_PO RT 2 Use the SET DEV ICE SU BNET_MASK_PO RT2 co mmand to speci fy the subnetw ork m ask f or y our t ype of In tern et class. For mat SET DEVICE SUB NET_M ASK_PO R T2 {mask} Param eters {mask} = 4-byte hex addres s Exam p le O EB M> s et de vi ce s ub ne t_m ask_ po rt2 FF .
4 - 58 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET FI L TER Use t he SET FIL TER c ommand to add a protocol ID to the p rotoc ol ID tab le, set the mod e of the protocol ID table, and add an address to the static address table.
Manag em ent Com m ands 4 - 59 SET FI L TER MODE P RO TOCOL _ID_T AB LE Use the S ET FIL TER M ODE P ROT OC OL_ ID_T ABLE c o mmand to set t he mode in whic h entr ies o f the proto co l id tabl e will b e used .
4 - 60 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET FI L TER P ROTOC OL_ ID_T AB LE Use the SET FIL TE R PROTOCOL_ID_T ABLE command to add a p r otocol ID to the protoco l id tab le.
Manag em ent Com m ands 4 - 61 SET FI L TER S T A T IC _ADDR ESS _T AB LE Use the SET FIL TER ST A TIC_ADD RESS_T ABLE co mmand to add node addr ess es to the s tatic a ddr ess ta ble.
4 - 62 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Never_Fo rwa rd_T o_Po rt1 Pa ram ete r Specifyin g th e N ever_Fo rw ard_T o _ Port1 param eter w ith a sub s equent MA.
Manag em ent Com m ands 4 - 63 SET S P ANT RE E Use the SET SP ANTR EE comman d to chang e the Spann ing T ree config ur ation p arameters of the loc al B ridge Mo dul e.
4 - 64 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET S P ANT REE B RIDGE_P R IOR ITY Use the SET SP ANTR EE BRIDGE_PRIO R ITY comm and to chan ge the Spanning T ree priorit y of th e local Bridg e Modu le .
Manag em ent Com m ands 4 - 65 SET S P ANT REE FO RW AR D_DEL A Y_T IME Use the SET SP ANTR EE FORW A RD _DEL A Y_TIME command to set the amount o f time bridges wai t in each of the states when m oving fro m Listening t o Fo rwardin g m o de. This value will take ef fect for th e overal l network w hen this bridge become s the Root Brid g e .
4 - 66 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide As a reminder , this p arameter at the local Bridge Module has no effect on the operatio n of the netw or k u nti l t he local brid ge bec omes the Ro ot Bridge.
Manag em ent Com m ands 4 - 67 SET S P ANT RE E HE LLO_ADDR ESS Use the SET SP A NTR EE HELLO_A DD RESS co mmand to mod ify the MA C address wh ich the Bridge M odule u ses fo r its spanning tree hello ad dress.
4 - 68 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET S P ANT REE HE LLO_ TIME Use the SET S P ANTR E E HELLO_TIM E com m and to chan ge ho w o ften th e local brid ge sends ou t a hello packet wh en it bec omes the Ro ot Brid ge .
Manag em ent Com m ands 4 - 69 2. list en_tim e > 2 * ( h ello_tim e + 1.0 seconds) The follow ing two examples use the fo rmu las with param eter def ault values to calcu late new values. 1. 2 * ( 15 s eco nds - 1. 0 s eco nds) = 28 se conds > 20 seco nd s.
4 - 70 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET S P ANT RE E LI STEN_T IME Use the SET S P A NTREE LISTEN_TIM E command to specify h ow lo ng b ridge s will wait fo r th e Roo t Brid ge to send ou t a hello pac k et.
Manag em ent Com m ands 4 - 71 Note: If you ch oose to modi fy the spantree parameter defaul t values f or for ward_delay_ti me , hello _tim e , or listen _time , you mu st use the f ollo wi ng tw o f ormu las t o calc ulate new values: 1. 2 * ( f orw ard_delay_tim e - 1.
4 - 72 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET S P ANT REE MO DE Use the SET SP ANTREE M ODE com ma nd t o en able or di sable the Spann ing T ree Al g or ithm an d Prot oco l ( ST AP).
Manag em ent Com m ands 4 - 73 SE T S P ANT REE P A T H_C OST _PO R T1 Use the SET SP ANTREE P A TH_COST_PORT1 comman d to c hange the pat h cost o f po rt 1 on the lo cal Bri dge M odule.
4 - 74 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SE T S P ANT REE P A T H_C OST _PO R T2 Use the SET SP ANTREE P A TH_COST_PORT2 comman d to c hange the pat h cost o f po rt 2 on the lo cal Bri dge M odule.
Manag em ent Com m ands 4 - 75 SET T ERMINAL Use the SET TERMINAL command to c hange the TERM INAL parameters fo r the Bridge Module . These c on figu ratio ns enab le t he Bridge M od ule to com mun icate w ith th e term in al t o wh ich it is con nected .
4 - 76 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET T ERMINAL B AUD Use the SET TERMINAL BAUD co mmand to establish the ap propr iate baud rate at which the Brid ge M od ule receive s and tran smits data to yo ur termin al or m o dem.
Manag em ent Com m ands 4 - 77 2. Issue the SET TERMINA L BAU D comman d to set the Bridge M odule terminal port baud rate to you r specificati ons. On ce yo u set this lower rate, you w ill lose your connec tion to th e Bridge Modu le since your termin al is set to a differ ent rate.
4 - 78 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET T ERMINAL D A T A_B ITS Use the SET TERMINA L DA T A_BI TS command to set the numb er of data bits used by your ter minal. For mat SET TERMINAL DA T A_BITS {data bit s} Param eters {data bits} = 7 8 (defau lt) Exam p le This exampl e chang e s the data bits to 7.
Manag em ent Com m ands 4 - 79 SET T ERMINAL H ANGUP Use the SET TERMINA L HA N GUP comm and to con figure ho w a m od em connec tion is termin ated w hen the L OGOUT command is entered during a modem session.
4 - 80 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET T ERMINAL P AR ITY Use the SET TERMINA L P ARITY comman d to set th e p arity t o match the parity s ettin g used b y you r term in al.
Manag em ent Com m ands 4 - 81 SET T ERMINAL P ROMPT Use the SET TERMINAL PROMPT command t o custo miz e the managem ent pro m p t that d isplays on you r termin al wh en connec ted to a local Bridge Modu l e.
4 - 82 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SET T ER MINAL S TOP_B ITS Use the SET TERMINA L STOP_BITS co m man d to establish th e number of stop bits bet ween char acters when co mmunicating between your terminal and th e Brid ge M odule.
Manag em ent Com m ands 4 - 83 SET T ERMINAL T IME OUT Use the SET TERM INAL TIME OUT c omman d to set the amo unt o f time that your term in al may be unattend ed befo re being log ged off fr om t he Bridg e Modu l e.
4 - 84 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide If TIMEOUT has been s et for a re m ote Br idge Module and the time expires , you wil l be log ged out of the remo t e brid ge and return ed to the loc al bridge co nn ectio n.
Manag em ent Com m ands 4 - 85 SHOW Use the SHOW c omm and t o list the c urrent b ridge att ribu tes. The S HOW comm and requires a parameter to di splay br idge attributes.
4 - 86 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SHOW ALE RT Use the SHOW A LER T com m and to displ ay alert con figurat ion setting s.
Manag em ent Com m ands 4 - 87 SHOW B RI DGE Use the SHOW BR IDG E command to disp lay bridge parameter s and their curr ent values. For mat SHOW B RID G E Param eters non e Exam p le OE BM > sho w.
4 - 88 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide T able 4-2 descr ibes the SHO W BRIDGE param eter s. T a ble 4-2. SHOW BRIDGE Com mand Attributes Attribut e Description Ageing T ime The r ate at wh ich add r esses ar e age d out of the dynam ic fil terin g table.
Manag em ent Com m ands 4 - 89 SHOW C OMMUNI TY Use the SHOW C OMMU NIT Y comma nd t o list the curr ent co mmunity table for t he Bri dge M odule. For mat SHOW C O MM U NITY Param eters none Exam p l.
4 - 90 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SHOW C OUNT ER Use the SHOW COU NTER command t o disp lay the statistical c ounters for the bridg e , port s, proto co ls, and sp anning tree .
Manag em ent Com m ands 4 - 91 SHOW C OUNT ER B RIDG E Use the SHOW C O U NTER BR ID G E comma n d to display t h e statistical counters for th e b ridged packets.
4 - 92 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide T able 4-3 descr ibes the SHO W CO UNTER BR ID GE attribu tes. T a ble 4-3.
Manag em ent Com m ands 4 - 93 SHO W COUNT ER PO R TS Use the SHOW C O U NTER PO RT S comma n d to display th e statistical counters for the B ridge Module ports.
4 - 94 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide T able 4-4 descr ibes the SHOW CO UN TER P ORTS att ribu tes. T a ble 4-4. SHOW COUNTER PORTS Command A ttributes Attribut e Description Seconds Since Clear The time since the local bridge was either r eset or the CLEAR command was is sued for this group of statist ics.
Manag em ent Com m ands 4 - 95 Excessive Co llisions Nu mber of packets the br idge disc arded becaus e it could no t tran smit on to th e Ethern et wit hout seeing a collisio n 16 ti m es in a row . Received Fram i ng Error Number o f Ether n et packets received witho ut p roper fram in g .
4 - 96 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide SQE (H eartbeat) Failu res (Y ou c an disabl e this attribut e u sing t he SE T DEVICE SQE_MODE com mand ) Num ber o f times the fram e w a s transm itted with ou t succ essfu l SQ E (heartbe at).
Manag em ent Com m ands 4 - 97 SHO W COUNT ER PROT OC OLS Use the SHOW CO UNTER PRO TO C OL co mmand to di splay th e statistical counters f or th e Bridge Mo dule protocols.
4 - 98 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide T able 4-5 descr ibes the SHO W CO UNTER PRO TO C O LS attri bu tes. T able 4-5.
Manag em ent Com m ands 4 - 99 SHO W COUNT ER SP ANTREE Use the SHOW CO U NTER SP ANTREE co mmand to di splay th e statistical counters f or th e Bridge Mo dule spantree param eters.
4 - 10 0 ONli ne Ethern et Bri dge M odule In stallatio n and Operatio n G uid e T able 4-6 describes the SHO W COUN TER SP ANTREE attr ibutes. T a ble 4-6.
Man ageme nt C omm an ds 4 - 1 01 SHOW DE VICE Use the SHOW DEV ICE comman d to d isplay dev ice-related in formation . For mat SHOW D EV IC E Param eters non e Exam p le O EB M> sho w de vi ce [E NTE R] O Nl in e Eth er ne t Br id ge Modu le ( Brid ge M odu le ); S NM P Ma na geme nt Na me : Bri dge3 Bo ot E PRO M Ve rs ion: v1 .
4 - 10 2 ONli ne Ethern et Bri dge M odule In stallatio n and Operatio n G uid e T able 4-7 descr ibes the com m and attributes. T able 4-7. SHOW D EVICE Com mand Attributes Attri bute Descri ption MAC A dd ress Unique 48-bit add ress a ssigned to this interface.
Man ageme nt C omm an ds 4 - 1 03 SHOW FIL T ER Use the SHOW FIL TER comman d param eters to display the ent ries in th e dynam ic ad dress fi lter tabl e, the conten ts or mode of th e proto co l ID t able, and the con tent s of the static address table.
4 - 10 4 ONli ne Ethern et Bri dge M odule In stallatio n and Operatio n G uid e SHOW FIL T ER DYNAMI C_ADD RESS_ T ABLE Use the SHOW FIL TER DYNAM IC_ADD RESS_T ABLE comman d to display active entr ies in t he dy nam ic addr ess filter table at each o f t he b ridg e po rts.
Man ageme nt C omm an ds 4 - 1 05 SHOW FIL T ER MOD E Use the SH OW FI L TER M ODE comm a nd to d isplay the cur rent protocol id table filterin g m ode .
4 - 10 6 ONli ne Ethern et Bri dge M odule In stallatio n and Operatio n G uid e SHOW FIL T ER P ROTOCOL_ ID_T ABLE Use the SHOW F IL TER PR OTOCOL _ID_T ABLE command to display the conten ts o f the p rotoco l id tab l e.
Man ageme nt C omm an ds 4 - 1 07 SHO W FIL TER S T A T IC_ ADDRE SS_T ABLE Use the SHOW FIL TER ST A TIC_ADD RESS_T ABLE co mmand to d i splay th e the MAC addresses in the static addres s tab l e con figu red with the filt er ty pe you s pe cif y .
4 - 10 8 ONli ne Ethern et Bri dge M odule In stallatio n and Operatio n G uid e SHOW LAS T_E RROR Use the SHOW LAST_ERR OR command to display infor mation on the last fatal error that o ccu rr ed at t he loc al b ridg e.
Man ageme nt C omm an ds 4 - 1 09 SHOW S P ANTREE Use the SHOW S P ANTREE command to display t he current Spanning T r ee inform at ion for th e lo cal br idg e . Note that th e values listed fo r fo rward_delay_tim e , h ello_t ime, an d listen_time are active an d in effect ONL Y when the lo cal bridge is the root of the Spann ing T r e e .
4 - 11 0 ONli ne Ethern et Bri dge M odule In stallatio n and Operatio n G uid e These values (the ones impos e d by the current Root B ridge ) are displayed with the MONITOR S P ANTRE E c ommand a s the act ive HELLO_TIM E, active FORW ARD_D ELA Y_TIME, and activ e LISTEN_TIME.
Man ageme nt C omm an ds 4 - 1 11 Listen T i me (sec) The amo unt of t ime (in seconds) that b ridge s will wait for the Root Bridg e to send o ut its Multic a st addr ess packet (h ello packet) when this bridge is root.
4 - 11 2 ONli ne Ethern et Bri dge M odule In stallatio n and Operatio n G uid e SHOW T ER MINAL Use the SHOW TERM INAL com mand to d isplay the termi nal co nfigu ratio n.
Troublesh oot ing 5 - 1 5 T roubleshooti ng This chap ter provide s usefu l info rmatio n for diagno sing u nexpected results when usin g th e Brid ge Mo du le .
5 - 2 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e . PowerUp Sel f-T est Under no rmal co nd itions, the TEST LED st ays o n during t he power -up self-test (about 2 0 second s) and then turns off. If the TEST LED continues blinking , refer to T ab le 5-2 f or po ssible solu tio ns T a ble 5-1.
Troublesh oot ing 5 - 3 . If all t hese cond ition s are met and you still cannot get yo ur B ridge M odule to operate, refer to Append ix E for T ec hnical Assistanc e. T able 5-2. Power-Up Self-T est Su gges tions Proble m T ro u ble sho ot i ng Sug ge stion s The test indicato r contin ues blin king .
5 - 4 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Manag emen t Interface Follow the di rections in Chap ter 2 fo r attach ing you r term ina l to th e B ridg e Managem ent Interface. Unde r norma l cond itio ns, the pr ompt , “OE BM>” appears on the screen onc e you pr ess [ENTER].
Troublesh oot ing 5 - 5 Brid ge O perati on Once yo ur B ridge ha s p assed the self-test an d appe a r s to be wor king, you may have some o peratin g questio ns or p ro blems . Listed below are so me com mon brid ge operatio n probl em s and their so lut ion s.
5 - 6 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e T echn ica l Assi sta nce Y ou can receive assistance for in stallin g and troublesh oo ting the Br idg e Module b y call ing eith er your 3Com reseller or 3Co m T echnical Sup port.
Firm w ar e D ow nlo ad In st ruc tion s 6 - 1 6 Firmware Download Instruc tion s This chapter explain s how to dow nload new softw are to the Flash EPROM in your ONlin e Ethernet B rid ge Mo du le . New soft ware is provided to r egi st e red owner s by 3C om Co rp oration w hen new featu res or enhancem en ts ar e available for the m odule.
6 - 2 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e ❑ Y o u mu st have the O N line Eth er net Br idge Module Upd ate Distrib ut ion Kit from 3Com ( Part Nu mber 5 102 B- UDK -x.x). The Update Kit h a s two v ersions - lim ited and unl imited .
Firm w ar e D ow nlo ad In st ruc tion s 6 - 3 EP ROMs. The first ti m e you up date the f irmware r equires that y ou purchase both an FDK and a U DK. A ll upd ates after th at time require that you hav e the new versio n of th e UD K (and the or igin al FDK ) .
6 - 4 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e 4. T ype the co mmand FD K and press [EN TER] t o disp lay the in itial installatio n scre en as sho wn in Figure 6 -1.
Firm w ar e D ow nlo ad In st ruc tion s 6 - 5 7. En ter the nu mber of the co mmun icati ons p ort (C OM1, COM 2, et c. ) to wh ich y ou will b e c onnecti ng the RS-2 32 cable on the PC to perfo rm th e softw are dow nload fo llow ing the “Enter the COM Po rt (1-4):” prompt.
6 - 6 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Figure 6 -2. ProComm Installation Sc ree n Note: If the message “ProComm directo ry alr eady exists, overwrite files?” disp lays, you have the ch oic e of overwr itin g the files o r quittin g the install ation .
Firm w ar e D ow nlo ad In st ruc tion s 6 - 7 Figure 6-3. P ost-Pro Comm Installatio n S cree n This last step of the installatio n loads t he ProCom m co nf iguratio n fi le. The config ur at ion file sets the parameters th at are used by ProCom m to communicate w ith the Bridge M odule.
6 - 8 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e 2. Con nect t he oth er end o f the cab le to the serial po rt on you r PC (using the pr o vided 9- to 25-pin adap ter if necessary). M ake sur e you conn ect th e cable to the com municatio ns port yo u specif ied in t h e ProComm inst all instru cti ons.
Firm w ar e D ow nlo ad In st ruc tion s 6 - 9 Figure 6 -4. Initial UDK Installation Sc ree n 4. En ter the lett er of th e source drive where you insert ed the 3C om diskette fo llowing th e “Enter the S ource Drive:” p rompt. Th en p r ess the Down Arr ow key ( ↓ ) o r [T AB] to mov e the cu rsor to t he next field.
6 - 10 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Figure 6 -5. ProComm Hea der S cree n 7. Pr ess [ ENTER] at this scr een. The Pr oComm Status Line Scr een appears, as show n in Figure 6-6. Copyright (C) 1985-1988 DATASTORM TECHNOLOGIES,INC.
Firm w are Do wn load Instru cti ons 6 - 11 Figure 6 -6. P roComm Statu s Line Sc reen 8. Pr ess [ENTER] to display t he Passwor d : pr ompt , and then log in to t he system with the ad mini strator passw ord. (Not e tha t th e M GM T LED on th e faceplate of t he un it wil l light up .
6 - 12 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide 9. T ype the following D OWNLOAD comm and and press [ ENTER]. OE BM > mai nt ai n do wnlo ad ou t_of _b an d [ ENT ER ] Wa rn in g: D ow nl oad wil l eras e your cu rr ent op er atio nal c ode.
Firm w are Do wn load Instru cti ons 6 - 13 Figure 6 -7. ProComm P op-Up M enu Screen 13. Press [ EN TER] to down lo ad the OE Bx_ xx. CMD file to the Flash EPRO M (wh ere x_xx is the software version ). This process takes approxi mat ely ten to eleven m inutes at 9600 baud.
6 - 14 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Figure 6 -8. ProComm Download Sc reen When th e download co mpletes successf ully , a m essage displays t o that ef fect and the Bridge Modu le boots up u nder the new F lash EPRO M co de and display s the ONli ne Ether n et Bri dge Mod ule heade r .
Firm w are Do wn load Instru cti ons 6 - 15 Figure 6 -9. Exit P roComm Scre en 15 . En ter Y t o exit from ProCo mm. 16. D isconnec t the cab le fro m the PC and the Brid ge Mod ule. The modu le is now upd ated w ith th e new softw are. T r oub lesh ooti ng This se ction disc usses possible problems you may encounter dur ing the download pr o cess.
6 - 16 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Comm only Asked Qu estions , A ppendi x G , and Ch apter 7 . Refer also t o T able 6- 1 w hich lists com m on UDK error m essa ges.
Firm w are Do wn load Instru cti ons 6 - 17 Bridge Module P roblems Bridge M od ule problem s during the do wn load cause an err o r statement to be displayed on the scree n.
6 - 18 O Nlin e Eth ernet Brid ge Mo dul e Installati on an d O peration G uide Packet out of sequen ce T ry ag ain. If the problem persists, call 3Com Suppo rt. Incorrect co de versio n T ry ag ain . I f the prob lem persists, call 3Com Suppo rt. Flash EPROM over flow T ry ag ain.
Sp ecific ation s A - 1 A Spec if i cation s This a p pen dix lists specificatio ns for th e ONline Ethern et Bridge Mo du l e . Ther e ar e five subs ections: ❑ Gen eral Specif icatio ns ❑ Electr.
A - 2 O Nl ine Ether net Br idg e Mod ule Installatio n and Operatio n G ui de Cable Interface: One 15-pin D -sub miniature, fem ale Ether net V2.0 o r IEEE 802.3 A UI One m ale 25 -pi n D-su bm i niatu re, RS-23 2-C, DTE Inter co nnect Cha racteris tics Suppor t s IE EE 80 2.
Sp ecific ation s A - 3 Environmen tal Sp eci fic atio n s Operati ng T emp erature: 0° to 50 ° C (32 ° to 12 2° F) Storage T emperatu re: -30° to 65 ° C (-22 ° to 1 49° F) Humidity: less than 95%, no n-con densin g BTU/hou r: 51.2 Mech an ic al Sp eci fic atio ns Dim ension s : 2.
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Span nin g Tree Disc ussion B - 1 B Spann ing T re e Dis cussion This appen dix br iefly disc usses the Spann ing T r ee A lgo rithm a n d Protoco l (ST AP) an d how it is used with t he Bri dge Module.
B - 2 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e Root Por t - The port on the brid ge with th e lowe st “root path co st”; the port clo s est to the root b rid ge .
Span nin g Tree Disc ussion B - 3 Figure B-1 . Span ni ng T ree Netw ork Architectu re When a bridge i s i nstalled into a netw o rk, i t as sumes that it is th e ro ot o f the netw ork unt il it is told otherw ise. We w ill call this b r id ge BRI DGE _3.
B - 4 O Nl ine Ethern et Bridg e M od ule In st allation and Op eratio n G uid e designated b ridg e for the samp l e shown in Figu re B-1 a s it forw ards information f r o m LAN 1 and LA N 2 to the R oot B ridge (BRI DGE_4). If BRIDG E_3 is told th at it is not t he desig nated b ridge, it will go in to blockin g state.
Span nin g Tree Disc ussion B - 5 Figure B-2 . Configuration With Multiple B ridge Modules The Midnight Bridge call ed B ridg e A i s determ i ned to b e th e Root Brid g e in this c on figu ratio n. B ridge B and Br idge E are in blocking state as they we r e determ ined to be redund ant in this netw or k .
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Cable Pinouts C - 1 C Cable P in outs This append ix describes th e cab le pinouts f or both transc eiver cables an d RS-232 cab les . Also descri bed in this ap pendix are som e c ommo n pro blems you m ay enco un ter w ith your transceiv er cables and som e suggested solution s .
C - 2 ON lin e Eth ernet B rid ge Mo du le Installation an d O perat ion Gu ide Figure C-1 . Bridge M o dule Female AUI Connector T a ble C-1. AUI Cable Pin Chart Pin IE EE 802 .
Cable Pinouts C - 3 T ran s ceiver Ca bl e Differe n ces Becaus e AUI T ransceiver c ables may be bu ilt to any of th ree Ethern et standards (V1.0, V 2.0, and IEEE 802.3), signal d if fer en ces m ay occ ur between differ ent types of transcei ver cabl es.
C - 4 ON lin e Eth ernet B rid ge Mo du le Installation an d O perat ion Gu ide V2.0 All shields are co nnected t o p in 1 and th e AUI conn ector shell. Pin 4 i s not used. Most Ether net cables are built this wa y . V1.0 Shielding of individ ual sign al or po wer pairs is not required, sinc e mos t V1.
Cable Pinouts C - 5 Also, since 802 .3 AU I cabl es provide a ground shield iso lated from th e signal and po wer pair's sh ields, t hese cables provid e a dditional noise immu nity in no isy op eratin g envi ronment s. Cabl e C onfi g urati on Rules Refer to the following configuration rules wh en configuring your network.
C - 6 ON lin e Eth ernet B rid ge Mo du le Installation an d O perat ion Gu ide Cable C onfig uratio n Make sur e the transceiver cable do es n ot exc eed the m axi mum leng th s described in T able C- 3. Also, foll ow t he con fig urat ion rules listed b elow .
Cable Pinouts C - 7 – Sh el l con nect or not cr imped onto AU I cable b raid. – Ribb on cables in co m puters no t shield ed or im properly mounted. ❑ Broken pair w ir es or uns eated AU I con nector p in. ❑ Im proper pai ring : – V eri fy th a t s ignal an d po wer w ires are paired, that is, T r ansm it + paired with T ransmit -, etc.
C - 8 ON lin e Eth ernet B rid ge Mo du le Installation an d O perat ion Gu ide Figure C-2 . Management Inter f ace RS-232 Conn ecto r an d C abl e Pino ut s T abl e C- 4. R S- 232 Cabl e Pi n C hart Pin DT E 1 Chassis Ground ← 2 T ransmi tted Dat a ← 3 Receiv ed Data → 4 Request T o Send (A ctive L ow +12 .
Power- Up Self-Test D - 1 D Powe r -Up Self- T est This appendix describ e s the d iagnosti c t ests run by the Bridge M od ule upon power u p. Thi s secti on also ex plain s how to start th e Bridge Mo du le self-test and h ow to interpr et LED and screen displays that result fro m the various tests.
D - 2 O Nl ine Ether net Br idg e Mod ule Installatio n and Operatio n G ui de self-test routin e r e su lts in an error co nd itio n, th e TEST ind i cator blinks and the r emain in g LEDs di splay a cod e indi cating w hich specific test was runnin g when t he error o ccurred.
Power- Up Self-Test D - 3 Scr e en Disp la y If a term in al is attached to the Managem ent inter face, additional informa tion is display ed on the scre en du ring self-test.
D - 4 O Nl ine Ether net Br idg e Mod ule Installatio n and Operatio n G ui de followed by a left p ar entheses . These messages start about half way through the self-test after p reliminary fu nc tion ality is verified. For examp le, w hen th e LANCE 802.
Power- Up Self-Test D - 5 If yo u are unable to co rr ect the conditio n ba sed on the inform ation in Chap ter 5, con tact 3Co m Cu stomer Sup port as explain ed in th e T echn ical Assistan ce sec tion in App endix E . Pleas e have the recor ded info rmatio n availab l e when you call.
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Technical Sup po rt E - 1 E T echnic al Support 3Com prov ides easy acces s to t echnical suppo rt in form ation throug h a variety of servic es. This appendi x descri bes the following services: ❑ .
E - 2 ON lin e Ethernet B ridge Mo du le Installati on an d O peration Gu ide Email T echnical S upp ort Y ou can co ntact th e Integ rated System s Di vision (for merly Chipc om) on th e Inter net fo r tech nical su ppo rt u sing th e e-m ail address techsu pp @chip co m.
Technical Sup po rt E - 3 When you c ontact you r netwo rk supplier for as s istance, hav e the f ollo w ing inform a t ion r eady : ❑ Diagn ostic er ro r messages ❑ A list of system hardw a r e a.
E - 4 ON lin e Ethernet B ridge Mo du le Installati on an d O peration Gu ide For access to customer service for all 3Com pr odu cts, call (800) 876-326 6. Y ou can also con tact the Integrated S ystems Division (ISD) o n the In ternet by u sing t he e-mail add r ess techsup p@ ch ipcom .
Technical Sup po rt E - 5 3. En ter you r fu ll Inter net e-mail add r ess as the pa sswor d (for exam ple, jd oe@c om pan y. co m ). 4. C hang e to th e mib or schem a directory usin g th e cd /p ub /mi bs or cd /p ub/ mi bs /s ch em as c ommand. 5. T o view the 3Com M IB, O ID, or sch ema entries, enter the di r command.
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Inde x 1 Inde x Symbo ls ? Command , 4 - 9 Numerics 3Com Bul letin Board Serv ice (3 Com BBS) , E - 3 A Accessing Bridge M anagement , 3 - 2 Ageing_Time Para meter , 3 - 2 0 Dynamic Filtering Table , .
2 Inde x C Channel C hec k Codes , 2 - 8 Channel-Select Switch S e ttings , 2 - 7 Cle ar Comm an d , 3- 2 3, 4- 11 Activ atin g , 3-23 Cle ar Counter C omm and , 4-12 Clear F i lter Command , 4 - 1 3 .
Inde x 3 Show Counter Ports , 4 - 9 3 Show Counter Protocols , 4 - 9 7 Show Counter Spantree , 4-99 Show Filter , 4-103, 4-104, 4-106, 4- 107 Show Filter Dynam ic_Address_Table , 4-104 Show Filter Mod.
4 Inde x G Gener al Speci fications , A-1 H Hardwa re Specifications , A-3 He lp Co mma nd , 3-4, 4-18 I Installation Precautionary Procedures , 2 - 1 Installation Proc edu re , 2-9 Pre-Installation T.
Inde x 5 Ping Comm an d , 4-2, 4- 26 Power-Up Self-Test , 5-2 Troubleshoo ting , 5 - 2 Precautionary Procedures Electrostatic Discharge , 2-1 Pro Com m Disket tes , 6 - 1 Refe rence Manual , 6 - 1 Sof.
6 Inde x Set Terminal Data _B it s Comma nd , 4-78 Set Terminal H angup Comm a nd , 4 - 7 9 Set Terminal Parity C omm and , 4 - 8 0 Set Terminal Prom pt Comm and , 4-81 Set Terminal Stop_Bits Com mand.
An important point after buying a device 3Com 5102B-EE (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 5102B-EE 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 5102B-EE - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 5102B-EE you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 5102B-EE will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 5102B-EE, 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 5102B-EE.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 5102B-EE. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 5102B-EE 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
