Instruction/ maintenance manual of the product 5000 ATM 3Com
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® http://www.3com.com Cor eBui lder ® 5000 A TM B ack bon e S wit ch Mo du le User Guide Part Number 10 01303 7 Publ ished N ovembe r 1999.
ii 3Com Cor poration 5400 Bayfr ont Plaza Santa Cl ara, Califo r nia 95052- 8145 Copy right © 1999, 3C om C orporat ion. All right s reserve d. No part of this doc ument ation m ay be repr o duced in.
C ONT ENTS A BOUT T HIS G UID E Introdu ction 1 Audience 1 How t o Use T h is Gu ide 1 Conventions 2 Related Doc uments 3 3Com D ocuments 3 Refer e nce D ocum ents 4 SNMP and MIB-Base d Information 4 .
Packet Channel Backplane Des cripti on 1-8 Slot Rest ri ctio ns Per B ackpl ane 1-8 Sample A TM Backbon e SwitchModul e Configurations 1-10 Basic Config uration 1-10 Dual-Homing C onfiguration 1-11 Du.
3 C ONF IGURING THE AT M B ACKBON E S WITC H M ODULE Configuration T ools 3-1 Distributed Management M odule 3-2 Advanced M anagem ent T ools 3-2 T ranscend Network Control S e rvices f or UNIX 3-2 T .
A TM Interface Parameters 4-9 A TM ILMI Config uration 4-10 A TM Q93b Parameters 4-10 A TM QSAAL Parameters 4-11 A TM Signal Configuration 4-11 A TM St atistics 4-12 A TM T raffi c Descri pti on 4-12 .
6 T ROUBLE SHOOTING T roubleshootin g Usi ng LED s 6-1 T roubleshootin g Base Module LEDs 6-1 V erifying Base Module LED Operation 6 -1 Reading the Base Modul e L EDs 6-2 Determini ng C orrec tive A c.
B T EC HNI CAL S U PPORT Onlin e T e ch nic al Ser v ices B -1 Worl d W ide Web Si te B-1 3Com K nowl edgebase Web Services B-1 3Com F TP Site B-2 3Com Bul letin Board Service B-2 Access by Anal og Mo.
F IGUR ES 1-1 A TM Backbone S witchModule H ar d ware Components 1-4 1-2 A TM Backbone S witchModule Base Configuration 1-6 1-3 A TM Backbone S witchModule wi th Redundant A TM OC-3 Card 1-7 1-4 Examp.
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T ABLES 1 No ti ce Ico ns 2 2 T e xt Conventions 2 1-1 Supported Standards and MIBs 1-4 1-2 SwitchModule Installation Pe r Backplane 1-8 4-1 Other Vbridge I GMP S noop ing Options 4-4 6-1 Base Modul e.
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A BOUT T HIS G UIDE Introduction Thi s gu ide de scribe s how to in stall, co nf igure, and m a nage t he 3 Com Cor eBuilder ® 5000 A TM Back b one Sw it chMod ul e. If the i nfor mat ion in t he re lease n otes s hippe d with y our pr oduct dif fers from the inform ation in this guide, f ollow the relea se no te inst ruct ions.
2 A BOU T T HI S G UI DE Conve ntions The f ollow ing t able s list co nven tions used t hroughou t this g uide: T able 1 Notice Icons Ic on Ty p e De scriptio n Inf ormat ion N ote Inf ormation not es call attent ion to impo rtant featur es o r inst ructi ons.
Rela t ed Doc uments 3 Relate d Docu me nts This se ctio n provide s inf orma tion on supp or ting doc um entat ion, in cl u d in g: ■ 3Co m Do cum ent s ■ Referenc e Doc umen ts 3Com Do cument s .
4 A BOU T T HI S G UI DE ■ CoreBuild er 5000 Inte grated System H ub Installation and Oper ation Guide — Pr ovides informati on on t he insta llation, opera tion , and con figu ration of the Co reBuild er 5000 In tegra ted System Hub.
Rela t ed Doc uments 5 ■ Kas tenho lz, F . and Mc Cl oghr ie, K ., Ev olutio n of t he Int erface s Group of MIB- II, R FC 1573 , F TP S oftwa re and H ughes LAN Sy stem s, Janua ry 19 94.
6 A BOU T T HI S G UI DE.
1 I NTR ODUCTION This c hapter d escrib es the feat u r es and components of the 3Com Cor eBuilder ® 5000 A TM Bac kbone Swi tchM o dules a nd how A TM Backb one Swi tchMod ul es op erate.
1-2 C HAP TER 1: I NTRODUCTION Mult iple R edundanc y Lev el s Y ou ca n con figure t he A TM Back b one Sw it chMod ul e fo r two lev els of r ed und ancy : ■ PHY Re dundanc y — A sec ond ary A TM O C- 3 c ar d provides PH Y r ed und ancy .
ATM Back bone Switc hModule Overvi ew 1-3 Hot S w ap Featu re Y ou ca n in sert or r em ov e A TM B ackbon e S witch Modu les wi thou t power ing o f f t he Co reBuilder 50 00 chassis.
1-4 C HAP TER 1: I NTRODUCTION Suppo rted Ma na ge me n t Standa rds CoreBuilde r 500 0 A TM Back bone Swi tchM od ules su ppo rt the standa rds and MI Bs shown in Ta ble 1- 1. A TM Back bon e SwitchM odul e Architect ure This sectio n describ es the har d wa r e com pon ents of the CoreBuild er 500 0 A TM Bac kbone Swi tchM o dule.
ATM Back bone Switc hModule Archit ectur e 1-5 The si gnific ant ha rdware com pon ents of the A T M B ack bo ne Switch M odu le inc lude : ■ Mana gemen t Proc essor ■ Packet Switch Processor ■ .
1-6 C HAP TER 1: I NTRODUCTION A TM Back bon e SwitchM odul e Descr ip tions This se ction d e scribes the ba se and redundan t h ardware conf igura tions of th e A TM Back bone Sw itchM odu le. B a s e H a rd w a re Conf igurat ion Figu re 1-2 shows t he A TM Bac kbon e S witch Mo dule w ith on ly t he pri m ary A TM OC-3 car d installed.
ATM Back bone Switc hModule Desc riptio ns 1-7 Redun dant Har dwar e Conf igurat ion Figu re 1-3 shows t he A TM Bac kbon e S witch Mo dule w ith a n o ption al red un d an t A T M O C -3 ca rd in s ta lle d .
1-8 C HAP TER 1: I NTRODUCTION Pac k etC h ann el Back plane Descr ip tion An A T M Ba ck bone Sw it chMo dule installe d in t he Co reBuild er 5 000 hub connec ts to the Cor eBuilder 5000 PacketChannel b ackplane. Th ere ar e two ki nds of PacketCh annel backplan es: ■ St andar d Pac ketCha nnel — Sup port s pack et -swit ching .
Pack etChanne l Backplane Descr iption 1-9 Refe r to the CoreBui lder 5000 I ntegr ated Sy stem Hub Install ation and Operati o n Guide for mo r e inf orma tion a bo ut CoreBui lder 500 0 h ub backpl anes.
1-10 C HAPTER 1: I NTRODUCTION Sam ple A T M Back bone SwitchM odul e Config urations This se ctio n illu strates t hree ba sic c on figuratio ns of the A T M Ba ckb one S wit c h M o du le : ■ Basi.
Sam ple ATM Backbo ne Switch Module Confi gurat i ons 1-11 Dual- H omin g Conf igurat ion Figu re 1-5 illustrat es the dual-h om ing c onfigur ation of an A TM Backb one Sw itchM od ule wi th a r ed und ant A TM OC -3 ca rd.
1-12 C HAPTER 1: I NTRODUCTION Dua l-Ho ming/ Modul e Redun dancy Conf igurat ion Figu re 1-6 illust rate s the du a l-homi ng/ modul e redund ancy c onfigur ation of two A TM Backbo ne Swi tchM odul es wi th redunda nt A TM OC -3 cards.
Sam ple ATM Backbo ne Switch Module Confi gurat i ons 1-13 The f eatures of t he du al-hom i ng/m odul e redunda ncy con figu rat ion in cl u d e: ■ Lo ad bal anci ng LEC su ppo rt is di stribu ted .
1-14 C HAPTER 1: I NTRODUCTION.
2 LAN E MU LATION O VER VIEW This ch a pter de scribe s the LAN em ula tion tech nol ogy t hat provid es an i nterface betwe en Ethe r net and FDDI packet-b ased networ ks and A TM cell -based net wo rks.
2-2 C HAP TER 2: LAN E MULAT ION O VER VI EW Figure 2 -1 LAN Emulat ion Function The A TM Ba ckbone SwitchModule provides a LAN emul ation b rid ge bet ween an A TM network and a standard Ethernet-based SwitchModule (F ig u r e 2 - 2 ).
LAN Emulati on Component s 2-3 LAN E m ulation Compon ents This sec tion ident ifies: ■ Gen era l LANE Com pon en ts ■ ATM Bac kbone Sw itchM o dule LA NE C om pone nts Ge ner al LA NE Compon ents The majo r components of A TM LAN emu latio n are iden tified in Figu re 2-3 .
2-4 C HAP TER 2: LAN E MULAT ION O VER VI EW Br oadca st and U nknown Serve r (B US) The Br oadcast and Unkno wn Server is a mult ic ast serv er that fo rwar ds multic ast and b roadcas t traf fic to L ECs within a s pecific ELAN. The BUS als o floods unknown uni cast traf fic to all LECs in the ELAN.
LAN Emulat i o n Data Ex change 2-5 Virtu al Bridg e (vbrid ge) Y ou create virtu al bridg es on CoreBui lder 5000 S witc hMod ule s. Y ou assi g n each bridg eport- LEC to a vbri dge on a SwitchModul e in the CoreBuilde r 500 0 h ub. Em ula ted LAN ( ELAN) Y ou assign each bri d geport- LEC to an ELAN in the A TM network.
2-6 C HAP TER 2: LAN E MULAT ION O VER VI EW P ack ets V ers us Cells The A TM Backbon e SwitchModule c o nvert s Ethernet- an d FDD I-orig inated pack ets to and from A TM c ells. Fig ure 2-6 illustr ates the convers ion o f SwitchModule p ackets to and from A T M ce lls.
LAN E mulation Connectio ns 2-7 LAN E m ulation Connec tions LAN emulati on uses VCCs (v irtual channel con nections ) to pr ovide communic ations be tween a LEC and the LANE serv ic e.
2-8 C HAP TER 2: LAN E MULAT ION O VER VI EW Dat a VCC s D a ta V C C s co ns i st o f t he f ol l ow in g thre e ty pe s: ■ Dat a Dir ect VCC — A b id irect io n al po in t- to -p o i nt VC C se .
LAN Emulat i on Opera tion 2-9 LAN E m ulation Operation This sec tion descri b es the si mplified oper ation of a LEC in a LAN emula tio n conf igur ation. LEC o per ation is d efined by the protoco ls of the LAN Emulat io n User -Network In terface ( LUNI).
2-10 C HAPTER 2: LAN E MULA TI ON O VER VIEW LECS Connecti on The L EC must de termine the A TM addr ess of its LECS and est ablish a co nnect ion to the LEC S. The LEC attem pts eac h of the follow ing meth ods, in the or der pr ovided, to connec t to it s LECS: 1 Uses a loca lly configu red LECS A TM addr ess.
LAN Emulat i on Opera tion 2-11 BUS Connec tion During the BUS Connec tion stag e, the LEC: 1 Sends a n LE -ARP (L AN Em ula tion-Ad dress Re solutio n Protoco l) reque st to t he LES contai ning the tar get MAC addr ess FF-FF -FF-FF-F F-F F (broadcast MAC addr ess).
2-12 C HAPTER 2: LAN E MULA TI ON O VER VIEW.
3 C ONFIGU RING THE AT M B ACKBO NE S WI TC H M ODULE This c ha pter provides proc edures f or c onfi guring th e Co reBuilder ® 50 00 A TM B a ckbo ne S witc hM odule.
3-2 C HAP TER 3: C ONFIG URING THE ATM B ACKBONE S WITCH M ODULE Distribu ted Manag e ment Modu le The Co reBuilder 5000 Distr ibuted M anage men t Mo dule (D MM ) and Adv anced DM M (ADM M) provide c om ma nds that a llow yo u to co nfigure an d m onit or th e A T M B ack bon e Sw itch Modu le.
C onfigurat i on T ools 3-3 Figure 3 -1 UNIX T ools for Configuring A TM Ba ckbone Switc hModules T ranscen d Network Contro l Serv ices for UNI X applicatio ns ar e accessed by: ■ Selec ting the ap.
3-4 C HAP TER 3: C ONFIG URING THE ATM B ACKBONE S WITCH M ODULE Figure 3 -2 W indows T ool s f or Configuring A TM Bac kbone SwitchModules T r anscend Netw ork M an ageme nt S oftware f or W ind ow s.
Sett ing Up DMM Access 3-5 Setti ng Up D MM Ac cess This se ction p rovides proc edures y ou m ust fol low to set up acce ss to DMM man ageme nt t ools.
3-6 C HAP TER 3: C ONFIG URING THE ATM B ACKBONE S WITCH M ODULE Config uration Pr oces s O ver view This sectio n p r ovi des a n ove rvi ew of t he fol low ing c onfigur ation in fo rm a tio n: ■ .
Config ur a tion Proces s Overview 3-7 A TM Confi gurati on CA UTI ON: Cha ng es to th e A T M p ara m et e rs ca n c a us e pr ob le m s wi th system op e ration. O nly qu alified A T M se rv ice perso nnel should attempt to mo dify th es e pa ra m e ter s .
3-8 C HAP TER 3: C ONFIG URING THE ATM B ACKBONE S WITCH M ODULE ■ LECs 2 t hrough 8 are set to the followi ng pa ra meter v alu es: ■ Con figurat ion m ode is M anu al. ■ I nterface mode is Disab led. ■ ELAN Name is No ne. ■ Vbridg e assignm ent is Unassi gned.
Confi guring ATM OC-3 Ca r d Redu ndancy 3-9 2 Save the set tings a s fol lows: CB50 00 > s ave a ll 3 Repeat s teps 1 and 2 for eac h LEC you r eq uir e.
I f you disa ble automati c failo ver an d a primary A TM OC-3 car d failu re occu rs, you must use th e command in ste p 1 to make the r edundant A TM O C-3 car d acti ve. Ther e is a configu rable fe ature calle d the loss of signal ling del ay . Th e defau lt is 0 seco nds, an d the max imum is 60 seco nds.
Confi guring IGMP Snoopi ng Pa rameter s 3-11 3 View the st atus of IGM P sno oping on a vbr idge co nfig ured on the A T M backb one Swi tchM od ule .
3-12 C HAPTER 3: C ONF IGU RING THE ATM B ACKBONE S WITCH M ODULE.
4 S TATU S M ON ITO RI NG A ND S TATIS TI CS This c h apt er descr ibes the to ols th at you can use to moni tor module st atus and gath er statist ics th at help you to analy ze the Cor eBuilder ® 5000 A TM Bac kbone Swi tchM o dule a nd ne tw ork perfor man ce.
4-2 C HAP TER 4: S TATUS M ONITO RING AND S TATI STI CS SHO W V BRID GE Use the SHOW VBRI DGE command to displa y the foll o wing vbri d ge co nfigura tion i nfor mat ion a bo ut th e A TM B ack bo ne.
Using DMM/AD MM Commands 4-3 Displayi ng Deta iled Vbrid ge Co nfiguration Inform ation The f ollow ing c omm and shows detai led vb ridg e con figu ratio n info rma tion a bou t an A TM B a ckbo ne S.
4-4 C HAP TER 4: S TATUS M ONITO RING AND S TATI STI CS Dis pla yin g IGMP Snoo ping Vbri dge Infor mati on The f ollowin g comm and show s IG MP snoo ping stat us infor mat ion for vbridge 11 conf ig.
Using DMM/AD MM Commands 4-5 SH OW MO DUL E Use the SHOW MODULE co mman d t o displ ay module -level informati on abou t the A TM Bac kbone SwitchM o dule . The f ollow ing c omma nd shows detail ed mo dule i nfor matio n abo ut a n A TM B a ckbo ne Sw itchM odu le in slot 4 o f a C oreBui lder 5 000 hub: CB50 00 > show modu le 4.
4-6 C HAP TER 4: S TATUS M ONITO RING AND S TATI STI CS SH OW BRI DGE _POR T Use the SHOW BRI DGE_PORT command to display : ■ Gene ral st atus inform ation for al l bridge po rts on th e module ■ .
Using DMM/AD MM Commands 4-7 Disp layi ng D eta iled Inf orm atio n The f ollo w ing co mma nd disp lays i nfo rm atio n ab ou t br idge por t 2 on a n A TM B a ckbo ne Sw itchM odu le in slot 4 o f a C oreBui lder 5 000 hub: CB500 0> sh ow br id ge_p or t 4 .
4-8 C HAP TER 4: S TATUS M ONITO RING AND S TATI STI CS SHO W CO UNT ER BRIDG E_POR T Use the SHOW COUNTER BRIDGE_PORT command to display stati stics for a bridg e por t on the mod ule.
Using DMM/AD MM Commands 4-9 SHO W A TM Use the SHOW A TM command to displ ay the fol lowing A TM in fo rm a tio n: ■ ATM Inte rface Par am eter s ■ ATM I LMI C onf igur ation ■ ATM Q93b P arame.
4-10 C HAPTER 4: S TATUS M ONITO RING AND S TATISTICS AT M I L M I Conf igurat ion The f ollow ing c omma nd displa ys infor mat ion abo ut th e A TM ILM I configu rat ion f or a n A T M Ba ck bon e S.
Using DMM/AD MM Commands 4-11 AT M Q S A A L Param eters The f ollow ing c omma nd displa ys infor mat ion abo ut A TM Q SAAL param eter s for an A TM Back bone Sw itchM od ule in slot 4 o f a CoreBui.
4-12 C HAPTER 4: S TATUS M ONITO RING AND S TATISTICS AT M S t a t i s t i c s The foll o wi ng command display s A TM statist ics for an A TM Backbo ne Switch M odu le in slot 4 of a Co reBuilder 500.
Using DMM/AD MM Commands 4-13 AT M V C C s The foll o wing com mand displays informati on about A TM VCCs for an A TM B a ckbo ne Sw itchM odu le in slot 4 o f a C oreBui lder 5 000 hub: CB50 00 > .
4-14 C HAPTER 4: S TATUS M ONITO RING AND S TATISTICS BPORT _LEC Conf igurat ion The f ollow ing c omm and displa ys conf igur ation inform ation fo r bridge po rt-LE C 2 o n an A TM B ackbon e S witch M odu le in slot 4 of a CoreBuilde r 500 0 h ub: CB50 00> sho w b po rt_ lec 4 .
Using DMM/AD MM Commands 4-15 BP OR T_L EC St at ist i cs The f ollowin g comm a nd displays st atist ics fo r bridg epor t-LEC 2 on an A TM B a ckbo ne Sw itchM odu le in slot 4 of a Co r e B uilde r 5 000 hub : CB50 00> sho w b po rt_ lec 4 .
4-16 C HAPTER 4: S TATUS M ONITO RING AND S TATISTICS BP OR T_L EC Se rver Cir cui ts The f ollow ing com mand disp lay s th e serve r circuit s for brid gepo rt-LEC 2 on an A T M Ba ckb one S witc hMod ule in slot 4: CB50 00> sho w b po rt_ lec 4 .
Using DMM/AD MM Commands 4-17 SH OW SON ET Use the SHOW SONET command to displ ay the follo wing A TM S ONET in fo rm a tio n: ■ SHOW SONET Stat us ■ SHOW SONET Stat isti cs SH OW S ONE T St atu s The fo llowi n g displ ays SONET stat us infor mation for an A TM Backb one S wit c h M o du le in s lo t 1 3 : CB50 00> sh ow so net 13.
4-18 C HAPTER 4: S TATUS M ONITO RING AND S TATISTICS SH OW SON ET Sta ti sti cs The foll o wi ng command displ ays SONET stat isti cs for an A TM Backb one S wit c h M o du le in s lo t 7 : CB50 00> sho w s on et 7.
Using DMM/AD MM Commands 4-19 SHOW I GMP SNOOPING Use the SHOW IGMP SNOOPING command to display the IGMP snoopi ng info rmation on a m odul e. Y ou ca n vi ew the IG MP snoopi ng inform ation on all o.
4-20 C HAPTER 4: S TATUS M ONITO RING AND S TATISTICS Using G raphi cal Int e rfac e T oo ls Tr a n s c e n d ® Network C ontrol S ervic es provide s advanc ed gr aph ica l manag em ent capab ilitie s tha t ena ble you t o m onit or A TM B ack bone Swi tchModule oper ation and coll ec t and d isplay st atistic s.
Usi ng Graph ical I nterfac e Tools 4-21 Dev ice Manage ment for H ubs Devi ce M an age ment f or Hubs allows you to displa y the o per ating status o f a select ed d evice , conf igure t he dev ice , or displ ay stat istics.
4-22 C HAPTER 4: S TATUS M ONITO RING AND S TATISTICS.
5 I NT ER N ET G ROU P M ANA GEME NT P RO T O C O L (IGMP ) S NO OPI NG This ch a pter prov ides th e fo llow ing inf orm ation abou t IG MP snoopi ng: ■ Overvi ew ■ CoreBuilde r 500 0 Su ppor t .
5-2 C HAP TER 5: I NTERNET G ROUP M ANAGEMENT P R OTOCOL (IG M P) S NOOPING Di sa bl ing IGMP sn ooping The de faul t settin g for IGMP snoopi ng i s enabl ed.
Overvi ew 5-3 Figu re 5-1 shows a typ ical packe t pa th be fore snoo ping occ urs. Figure 5 -1 Multicas t Packet Path before Snooping Elim in atin g unwa nted I P multi cast pr otocol s IGMP snoopi n.
5-4 C HAP TER 5: I NTERNET G ROUP M ANAGEMENT P R OTOCOL (IG M P) S NOOPING Figu re 5-2 shows t he for mat of a typic al IG MP snoo ping v ersion 1 messag e that is r ec eived after an IGMP snoopi ng query in a mult icast group has b e en co mplet ed.
Overvi ew 5-5 The r esult is that multic ast traf fic is fl o oded t hr ough a multicast group-sp ecific subset of th e swi tched f abric , nam ely t hat subse t th at contai ns either en d statio ns that h ave jo ined the gi ven mu lticast group, or mu lticast r o ut ers.
5-6 C HAP TER 5: I NTERNET G ROUP M ANAGEMENT P R OTOCOL (IG M P) S NOOPING CoreBuilder 500 0 Support The Co reBuilder 50 00 supp orts 46 I P mu lticastin g groups b y IP relay .
Enabl i ng IGMP S nooping on CoreBuil der 5000 Switch Modules 5-7 En ab ling I GM P Snoopi ng on CoreBuilder 500 0 SwitchM odul es IGMP sno oping can be e nable d on the f oll owing CoreBui lder 500 0 S wit c h M o du le s: ■ F TE Switch Module v1.
5-8 C HAP TER 5: I NTERNET G ROUP M ANAGEMENT P R OTOCOL (IG M P) S NOOPING Figu re 5-4 shows a ty pical F TE D RAM a dd r e ss for warding e n try . Figure 5 -4 F TE D RAM Addres s Forwardi ng Entry Fram e T agging c an be set on a CoreBu ild er 500 0 Switch Mo dule after it is ena bled f or I GMP sno oping .
6 T R O UBLESH OOTIN G This c hapter d escrib es: ■ Tro ubleshoo ting Us ing LEDs ■ Reco ver ing f ro m Pr oble ms ■ Resetti ng the ATM Back bo ne SwitchM od ule ■ Obt ain ing T e chni cal Ass.
6-2 C HAP TER 6: T ROUBLESHOOTING When yo u press the L ED test bu tton: 1 The Contr oller Module initiate s a test to all modules in the hub. All LEDs sh oul d respond by ligh ting co ntinuousl y fo r ap proxim atel y 5 s ec onds.
Troubl eshooting Usi ng LEDs 6-3 Determ ining Corr e ctive A ction Table 6-2 iden tifies appr o pri ate corr ective actio ns for each base module LED i nd ica tion . Ta b l e 6 - 2 Bas e Module LE D Corr ective Actions LED LED State Po ssib le Ca u se Correct i ve Act ion MOD STAT Green Norm al o p era ti ng ind i ca ti on.
6-4 C HAP TER 6: T ROUBLESHOOTING T ro ublesh ooting A TM OC-3 Card LEDs This sec t ion explai n s ho w to r ead the A TM OC-3 car d LEDs an d det ermine ap propriate correct ive a ction The LE D s on the ba se mo dule and A T M O C -3 car ds func tion indepe nde nt of ea ch oth er .
Recov ering f rom Pr oblems 6-5 Reco vering fr om Prob lem s Use t he f ollow ing p rocedure to re cove r from opera ting problems or module fa ilure. Eac h of these steps is exp lained in more detai l in the se c t io n s t h a t fo ll o w.
6-6 C HAP TER 6: T ROUBLESHOOTING If the A T M Ba ckb one Sw it chMo dule mo del num ber is not li sted, try each of the follo wing corr ective ac tions : If the D MM c an c omm unic ate wi th th e A TM B ackbo ne Swi tchM odu le, pr oce e d to V e rif yi ng So ftw a re V e rsi on s .
Recov ering f rom Pr oblems 6-7 V erif yi ng Crit ic al Param eters V erif y th at th e setti n gs of the fo llowing c ritical par ameter s match th ose of th e A TM switch to which th e A TM Backbo ne Swi tchM od ule is co nnect ed: ■ UNI ve rs ion ( defau lt i s 3.
6-8 C HAP TER 6: T ROUBLESHOOTING 3 Use the fo llowi ng command to check the f ollowin g SON E T statu s i ndica tors: CB50 00> show sone t <sl ot .
Recov ering f rom Pr oblems 6-9 4 Use t he f ollo wing c omm and to displa y v cc pa ram eter s: CB50 00> sh ow at m <s lot > vcc al l V erif y the fol lowi n g pa rameter s sett ings: ■ SI.
6-10 C HAPTER 6: T ROUBLESHOOTING 3 Use the foll ow i ng command to display th e LAN/E status of t he LEC: CB50 00> show bpor t_l ec <slo t.le c> stat us Check the i ndicati o n of the In terfac e State p aramete r .
Recov ering f rom Pr oblems 6-11 V erif yi ng Brid ging Conf igurat ion Use t he f ollow ing p rocedure t o ve rify t he bri dging co nfigu ratio n of t he A TM B a ckbo ne S witc hM odule: 1 Use the fo llowi ng command to display informati o n about t he LEC bridgi ng con figu ration.
6-12 C HAPTER 6: T ROUBLESHOOTING V e rifying A TM OC -3 Switc hove r If the R ed und ant A T M O C- 3 card doe s n ot beco me ac tive u pon failure of th e pr imary A T M OC- 3, use t he f ollow ing c omm and to ve rify t hat the PHY Automa tic Fail over param eter is Enable d : CB50 00> show modu le <slo t.
Obtai ning Techni cal Assi stance 6-13 Obt a inin g T ech nica l As sista nce Y ou ca n receive assist ance f or i nstalling an d troubles hoot ing a n A T M Backb one Swi tchM odul e by call ing ei ther y our 3C om reseller or 3C om netw ork supplie r .
6-14 C HAPTER 6: T ROUBLESHOOTING.
A S PECIF ICATIONS This appendix lists the followi ng sp ecif ications for the Cor eB uil der 5000 A TM B a ckbo ne Sw itchM odu les: ■ Env ironmenta l Specificati o ns ■ Mechanica l Sp ecif icati.
A-2 C HAP TER A: S PECIFICATIONS Po we r Sp ec ifi ca ti ons T able A -3 li sts the A T M Bac k bone Switch Mo dule p ow er specific ations. AT M O C - 3 C a r d Fib e r O p ti c Sp ec ifi ca ti ons T able A -4 l ists the A T M Ba ck bon e Sw itch Modul e O C- 3 fibe r optic spec ificat ions.
B T ECHN ICAL S UPPORT 3Co m p r ovi des ea sy ac cess t o te chn ical supp ort i nfor mat ion t hrough a vari ety of serv ices. This ap pendi x descr ibes th ese servic es. Infor mation co ntained in this app endix is co rre ct at ti me of publ ication.
B-2 A PPE NDI X B: T ECHNI CAL S UPPORT 3C om F TP S ite Downlo ad drivers, p atches, s oftware, and MIBs across the Inter net from the 3Com publ ic F T P si te.
Suppor t from Your Net work Su pplier B- 3 Acce ss by Dig ita l M od em ISDN users ca n dial in to th e 3Com BB S using a digital mo de m for fast access up t o 6 4 Kbp s.
B-4 A PPE NDI X B: T ECHNI CAL S UPPORT When you co ntac t 3Com f or a ssistance, ha ve the fol lowi ng inf orma tion r eady: ■ Product m odel n am e, par t num be r , a nd serial num be r ■ A lis.
Re tu r nin g P r odu cts fo r R epa ir B-5 Retu rni ng Products fo r Rep ai r Before you se nd a p r o duct directly to 3 Com fo r repair , you m ust fir st obtai n an au tho rizati on n umbe r . P r o ducts sent to 3Com w ith out author ization num be rs w ill b e r et urn ed t o the send er u nopen ed, a t th e sender ’ s ex pense.
B-6 A PPE NDI X B: T ECHNI CAL S UPPORT.
I NDEX 1 I ND EX Numbers 3Com bull etin boar d ser vice (3Co m BBS) B-2 3Com F acts B-3 3Com Kno wledgeba se Web Se rvices B-1 3Com URL B-1 A ADMM ve rsion requ ir ed 3-2 Arc hitectur e 1-4 AT M cell co nstruc tion 2-6 Confi guring 3- 7 Fo rum LAN E 1 .
2 I NDEX H Har dware base c onfigurat ion 1-6 re dundant conf i gurat ion 1- 7 Hot sw appin g 1-3 I IEEE 802.1D 1- 4 802.1H 1- 4 802.3 1- 4 Spanni ng T r ee Prot ocol 1-4 Tr a n s l a t i o n 1 - 4 In.
I NDEX 3 Spanni ng T r ee Pr otocol IEEE 8 02.1D 1-4 Sp ecif ic atio ns AT M F o r u m 1 - 2 envir onment al A-1 mech anical A-1 power A-2 Stat us veri f yin g Br idg eport-LEC 3-9 Switc hChannel back.
4 I NDEX.
3Com Corpor ation L IMITE D W ARRANTY Cor eBu il der ® 5000 A TM Backbon e SwitchMod ule H AR DWAR E 3Com w arrants to t he e nd user (“Custome r”) t hat this hardwa re produ ct will b e free f r.
W ARRA NT IE S E XCLUSIVE IF A 3CO M P ROD UCT D OES NOT OPE RA TE AS WA RR ANT ED ABOV E , CU STO MER 'S S OL E R EME DY F OR BREAC H OF THA T WARRANT Y SHALL BE REPA IR, REPL ACEME NT, OR RE FUND OF T HE PURCH ASE PRICE PA ID , AT 3C O M' S OP TI ON.
An important point after buying a device 3Com 5000 ATM (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 5000 ATM 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 5000 ATM - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 5000 ATM you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 5000 ATM will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 5000 ATM, 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 5000 ATM.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 5000 ATM. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 5000 ATM 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
