Instruction/ maintenance manual of the product 7600 3Com
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® http://www.3com.c om/ 7600 Fast Ether net Car d User Guide P r Part No. DUA7600-0AAA0 1 Publishe d November 1997 abtthgde.book Page i Tuesday, June 23, 1998 10 :29 AM.
ii 3Com Cor poration Q 5400 Bay fr ont Plaz a Q Santa Clara, Califo rnia Q 95052-8 145 © 3Com Corporation , 1996. All ri ghts reserved. No p art of this documentati on may be reproduced in any form o.
i C ONTENTS A BOUT T HIS G UID E Who Shou ld Use T his Guid e 1 How to Use Th is Guide 1 Convent ions 2 Inform ational an d W ar ning Co nventions 2 T ypographical C onventions 2 Rel ated M anual s 2 .
ii Instal ling the 7 600 Card Module 2-4 Removing the 7600 Card Modu le 2-4 Instal ling a Fast E therne t Physical Mod ule 2-5 Connecting to Network Devices 2-5 Connect ing to a Local M anagement T er.
iii 5 C ONFI GURI NG V IRTUAL LAN S Displa y Curr ent B r idge C onfiguration 5-1 Attach Fast Ethernet Port to Br idge 5-2 Attach Internal A T M Po rt to Bridge 5-3 6 F AST E THERN ET AND B RIDG E M A.
iv 7 M ANAGI NG A TM R ESOURCES Disp lay A TM Port Attrib utes and St atistics 7 -2 Displa y Bridge A TM address 7- 3 Update Br idge A TM Address 7-4 Displa y TM Co nfiguratio n 7-5 Enab le TM 7 -6 Di.
v 9 S ETTING N ETWORK P ARAMETERS Disp lay Current I P Configu ration 9- 2 Update IP Address 9-2 Update De fault Gatew ay 9-3 Update S ubnet Mask 9-4 Display SNMP Configuration 9-4 Update NMS IP Addre.
vi Monitoring Po rts 11-5 T ran spar ent Bridge s 11-6 Store-and-For war d 11-6 For war ding D ataba se 11-7 Lear ning Stat ion Addresses 11-7 Static A ddr esses 11- 8 Span ning T ree Protocol 11 -8 R.
vii Bridge s in the 7600 Ca r d 12- 10 Bridge Forwarding Datab ase 12- 12 Address Resolut ion 12- 12 Lear ning Addresses 12-13 LES Address Re gistration in t he 7600 Card 12- 13 Aging in the LE_A RP C.
viii 14 D EVICE M ANAG EMENT User I nterfaces an d Protocols 14 -1 In-Ban d & Out-of-Band Ma nagement 14-2 7600 Card M ana geme nt 14-3 Local Management (LM) 14-3 Simple Network Management Protoco.
ix Environmenta l C-2 Indicato rs C-2 Mana gement C-2 Standards C ompliance C-3 Safety C- 3 Electromagnet ic Emissions (A gency Certificat ions) C- 3 Commu nications Protocols C- 3 Mana gement Pr otocol s C-3 G LOSSARY abtthgde.
Who Should Use This Guide 1 A BOUT T HIS G UIDE The 760 0 Fast Ethern et Card User Gu ide provides th e informati on required to underst and how the 7 600 Card works in A TM and Et her net envir onments.
2 A BOUT T HIS G UIDE Conv entions T ables 1 and 2 list conve ntions used thr oughout this guide. Informa tional and W ar ning Conven tions T able 1 lists inf ormati onal and w arning con v entions. T ypogra phical Conven tions T able 2 li sts the typog raphica l conventi ons used by thi s guide.
Relat ed Manuals 3 Docu mentati on Road Map The Docume ntation Ro ad Map in T abl e 4 helps you loc ate specific informa tion i n the 7 600 Car d documentatio n set. . Trans cend Enterp rise Mana ger, ATM a nd VLAN Mana gement DUA2785-0NAA0 3 T able 3 7600 Card Documentati on and Related Manuals (continued) Manual Nam e 3COM Part No .
1 O VERVIEW OF THE 7600 C AR D This chapt er pr ovides an overview of the 76 00 Fast Ethe rnet Interface Car d and its major fe atur es and componen ts. About t he 7600 Card The 7600 C ar d provi des up to 16 Fast Ethernet fiber optic or cop per ports and is b ased on m ultiple ASIC ZipC hip technolo gy .
1-2 C HAPTER 1: O VE RVIEW OF THE 7 600 C ARD Figure 1-1 Fr ont Panel of the 7600 Card with full configuration Figure 1-2 Base card with plates cove ring ports 9-16 (optional modules) abtthgde.
7600 Car d Capabilities 1-3 Connectors Fast Ethernet 100BASE-F x interfa ce connecti ons ar e made thr ough SC connect ors; Fast Ethernet 100B ASE-Tx in terface con nections ar e made thr ough RJ-4 5 connecto rs. These ar e shown in Figur e 1-3 and Figur e 1-4 r espectively .
1-4 C HAPTER 1: O VE RVIEW OF THE 7 600 C ARD switch and is similar in function ality to t he 7200 Ethernet/A TM Interfa ce Card. 7600 Ca rd Be nefit s Fast Ethernet switc hing works with Virtual LANs and managemen t to ensure that info rmation flow does not cross V i rtua l LAN bounda ries.
Typica l Applic ations of th e 7600 Card 1-5 Virt ual LAN can inco rporate bot h legacy LAN s and A TM devices . Virtual LANs al low the e stablishme nt of logic al workgroups , independ ent of physical connect ions, to achieve mor e fl exible m anagement .
1-6 C HAPTER 1: O VE RVIEW OF THE 7 600 C ARD Figure 1-5 Fast Ethe rnet backbone abtthgde.book Page 6 Tuesday, June 23, 1998 10: 29 AM.
Typica l Applic ations of th e 7600 Card 1-7 Serv er Farm Figur e 1-6 sh ows the 76 00 Car d used in a “server f arm”. Up to 16 se rvers can be con necte d thr ough Fast Ethernet link s to the 7600 Car d. The host CELLple x 7000 is sho wn conne cted thr ough A TM link s to the Sup er -Sta ck II Swit ch 2700 units lo cated on dif feren t floors.
I Chapter 2 Installa tion and Power -up Chapter 3 Fast Setup S TARTING U P abtthgde.book Page 9 Tuesday, June 23, 1998 10: 29 AM.
2 I NSTALLATION AND P OWER - UP This chap ter describes the installati on of the 76 00 Card in a CELLple x 7000 A TM switch, the physi cal conn ections to the 76 00 Car d, a nd the 7600 Car d power -up pr ocedur e. It also incl udes a summary of system states .
2-2 C HAPTER 2: I NSTALLATION AND P OWER - UP powered on, This could cause bur ns or other bodily harm, as well as system d amage. DO NO T oper ate the unit in a locati on where the maxi mum a mbient temperat ure exceed s 40 degrees C. DO NOT pl ug in, turn on or attemp t to oper ate an obvi ously damaged unit .
Vors ichtsm aßnahm en 2-3 V orsicht smaßnahm en Jede W artung sollte NUR v on befugtem Wartungsp ersonal durc hgeführ t werden. Lesen S ie die fol genden V orsi chtsmaßna hmen sorgf ältig, um das Risik o von Str omschlag ode r Brandg efahr zu ve rmeiden.
2-4 C HAPTER 2: I NSTALLATION AND P OWER - UP Inst alling a nd Removi ng the 7600 Card Modules The fo llowing s ection d iscusses how to i nstall an d r emov e the 760 0 Card and its op tional modu les.
Connectin g to Network Devices 2-5 Inst alling a Fast Ethernet Physical Modu le Y ou can install up to four , 2-port Fast Ethernet physical modules on to t he 7600 Car d. Each module can be configu r ed for eith er 100BAS E-Fx or 100BAS E-Tx connection s.
2-6 C HAPTER 2: I NSTALLATION AND P OWER - UP applica ble, set the port on the connec t e d device to MDI an d use a straight-th r o ugh cable. Connec ting to a Local M anagement T erminal The foll owing sec tion descri bes the phy sical conn ection of the 7600 Card to a loca l terminal via the CELLplex 7000 switch.
7600 Ca rd System Stat es 2- 7 7600 Card Syst em States This section describes the di ffer ent system states of the 7 600 Car d and how they ar e indicated on the LED display . System Stat es and LEDs The followi ng T able 2-2 lists the system st ates of the 7600 C ard mod ule in the fi rst column.
2-8 C HAPTER 2: I NSTALLATION AND P OWER - UP Power -Up When th e 7600 C ar d is powered-up , it automa tically begins the powe r - up phase an d initiates the Power -On Se lf-T e st. Power -on Self-T est The 7600 Card’ s automatic Power -On Self-T est verifies that every componen t in the system is fully fu nctional.
Normal op eration 2-9 The purp ose of the Fast Ethe rnet LEDs is to display th e connection status and traf fic status on the corre spondi ng Fast Ethernet port. These ar e disp layed acc or ding to the foll owing tab le: T able 2-4 Fa st Ether net Por t LEDs LED (Color) Meaning Link st atus (Gr een) The po rt is connec ted.
3 F AST S ETUP This chapt er descri bes two me thods of co nfiguri ng the 7600 Car d which allow it to function i n the networ k almost immedia tely . The foll owing me thods are disc ussed: Q Integ r.
3-2 C HAPTER 3: F AST S ETUP CELLple x 7000 Integrated Fas t Setup The CELLpl ex 7000 Swit ch local mana gement softwa re featur es an Integr ated Fas t Setup proced ur e whi ch configu r es bo th the Sw itch and a ll Interf ace Car ds instal led in it in one continuo us dialog.
CELLple x 7000 I ntegrated F ast Setup 3-3 Swit ch Setup Mode The Switch set up mode focusses only on the CELLple x 7000 Switch and its A TM ports without a ltering In terf ace Card c onf iguration. The Switch setu p mode is provi ded t o allo w you to re tain special settin gs in the Interf ace Cards.
3-4 C HAPTER 3: F AST S ETUP Setu p Pr ocedu r e Section s The Int egrated Fast Setup consis ts of the follo wing steps or sect ions: Navigation Aid s T he followin g short-cut characte rs are provide.
CELLple x 7000 I ntegrated F ast Setup 3-5 Integ rated F ast Setup Operation The Inte grated Fas t Setup is initi ated from the LMA Mai n Menu of the CELLplex 7 000 .
3-6 C HAPTER 3: F AST S ETUP Exam ple Dialog The fol lowing dialo g appears on the scr een: Network Pr efix Section Now reading the modules configuration , please wait .
CELLple x 7000 I ntegrated F ast Setup 3-7 LE Parameters S ection LECS Addr ess Secti on UNI/NNI Parameters Section LE parameters =------------ Resident LECS state (1-Enable, 0-Di sable): 0 LES state (1-Enable, 0-Disable): 0 LECS Address --=--------- Active LECS addr - net prefix: 47.
3-8 C HAPTER 3: F AST S ETUP LE Cli ent Configur ation Section Virtua l Network Conf iguration Secti on LE Client Configuration -=--------------------- *** Hit Enter after VN #7 for end of potential ELAN names list.
CELLple x 7000 I ntegrated F ast Setup 3-9 Admin V N Manag ement Confi guration Se ction Confir mation Dialog Section Admin VN Management Configuration ----------=----------------------- Switch IP address: 100.0.0.1 Slot #3 IP address: 100.0.0.100 NMS address: 255.
3-10 C HAPTER 3: F AST S ETUP Mult i-con text Fast Setup This section d e scribes ho w to perform the ca r d -specific Multi-cont e xt Fast Setup t o perform a rapid conf igurati on of the 7600 Car d. Port Conte xt F or the p urpose of management, the 16 F ast Etherne t ports of the 7600 Card are di vided int o four conte xts .
Multi-context Fast Setup 3-11 subnet mask s, can be assigned to each logi cal bridge de fined in the Virt ual Network Conf iguration. Q Syste m Mode Conf iguratio n.
3-12 C HAPTER 3: F AST S ETUP Multi -cont ext S etup Operation Fr om the CE LLplex 7000 M ain Menu enter = <slot #> wher e <slot #> is the num ber of the slot in which th e 7600 Card is insta lled.
Multi-context Fast Setup 3-13 Virtua l Network Conf iguration Secti on ELAN Configurati on Sectio n Manag ement Config uration Sect ion Virtual Network Configuration ----------------------------- Fast Ethernet port #1 belongs to Bridge No.(0-3): 0 <A dmin VN> Fast Ethernet port #2 belongs to Bridge No.
3-14 C HAPTER 3: F AST S ETUP Syste m Mode C onfiguration Section The ne w configur ation is di splayed fo r this conte xt. Confir mation Dialog Section At th is point y ou ar e asked if yo u want to ent er Fast Setup for cont exts 1, 2, and 3.
II Chapter 4 Local Management Ba sics Chapter 5 Configuring Vir tual LANs Chap ter 6 Fa st E the rnet and Br idge Mana gement T asks Chapter 7 Managing A TM Resour ces Chapter 8 Managing LAN Emulation Cl ients Chapter 9 Setting Network Paramet ers Chapter 10 Managing System Functi ons 7600 C AR D M ANAG EMENT T ASKS abtthgde.
4 L OCAL M ANAGEMEN T B ASICS This chapt er describe s the use of the 760 0 Fast Ethernet Inte rface Car d Admini stration Co nsole, its Mai n menu displa y and its contr ols. A Menu Index is al so included which pr ovides a r efer ence to the command descrip tion for each men u command.
4-2 C HAPTER 4: L OCAL M ANAGEMENT B ASIC S Figure 4-1 Hie rarchic menu structur e Main Me nu The Main menu is acce ssed fr om the CE LLplex 7000 Ma in menu by typing = <slot #> where “<sl ot #>” is the num ber of the slot in which the 760 0 Card is installe d.
Menu Hierarc hy 4- 3 Port Conte xt F or the p urpose of management, the 16 F ast Etherne t ports of the 7600 Card are di vided into f our cont ext s as follo ws: . The manageme nt menus and com mands focus on on e context at a time. Each menu has t he curr ently acti ve context di splayed above it.
4-4 C HAPTER 4: L OCAL M ANAGEMENT B ASIC S Entry o f the stp submenu’ s 3 opti on pr oduces the pr ompt: (3)bridge(4)stp(3)port>. Fina lly , entering 1 finalizes the prompt as: (3)bridge(4)stp(3.
Menu Hierarc hy 4- 5 T able 4-2 Menu Navigation Functions Type : To go to: Main me nu from an y point. - Previ ous menu. Left/Ri ght Arrows Back and fo rth within the command lin e. Home Beginn ing of the comma nd line. End End of t he co mman d line.
4-6 C HAPTER 4: L OCAL M ANAGEMENT B ASIC S Menu In dex The fo llowing index sh ows where to find the descriptio n of eac h menu action in the foll owing chapter s. The index has the same structur e as the menu hier ar chy . Syste m Managem ent Menu [1] sys tem .
Menu Ind ex 4- 7 . . . . . . . . . . . . . . . [3] st ate . . . . . . . . . . . . . . . . . . . . . . . . 6-6 . . . . . . . [4] update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Bridge M enu [3] bridg e . . . . . . . [1] display .
4-8 C HAPTER 4: L OCAL M ANAGEMENT B ASIC S . . . . . . . [3] vcc . . . . . . . [4] tm . . . . . . . . . . . . . [1] display . . . . . . . . . . . . . . . . . . . . 7-5 . . . . . . . . . . . . . [2] enable . . . . . . . . . . . . . . . . . . . . 7 -6 .
Menu Ind ex 4- 9 Virtual LAN Menu [6] vns . . . . . . . [1] display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 . . . . . . . [4] ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 . . . . . . . [5] atm . . . . . .
5 C ONFIGU RING V IRTUAL LAN S This chapt er contain s detaile d descripti ons of common manage ment tasks for V irtual LANs (vLAN s) connected to the 7600 C a rd. Please see “Virtual LANs in the 7600 Ca rd ” on page 12- 18 for gener al backgr ound mate rial conc erning vLANs and how th ey are defi ned in the 7600 Card.
5-2 C HAPTER 5: C ON FIGU RIN G V IRTUAL LAN S Exampl e Enter: [6] [1] The fo llowing is displ ayed: Figure 5-1 Bridge C onfiguration Displa y Attach Fast Ether net Port to Brid ge Enter t he bridge nu mber and a Fast Ethe rnet port to attach a specifi c Fast Ether net port to the bridge.
Attach Interna l ATM Port to Bridg e 5-3 Exampl e Enter: [6] [4] 1 3 Fast E therne t port #3 i s attached to bridge #1 . Attach Intern al A TM Port to Bridge Enter the bridge nu mber and Y/ N to attac h/detac h the int ernal A TM downlin k port to an br idge .
6 F AST E THER NET AND B RIDGE M ANAGEMEN T T ASKS This chapt er contain s detaile d descripti ons of common manage ment tasks for Fa st Ethernet LAN s connected to t he 7600 Card. Refer to Chapter 11 “ Ethernet LANs an d Bridge s in the 7400 Car d ” fo r general back gr ound ma terial conc erni ng Ether net LANs.
6-2 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEM ENT T ASKS Manag ing the Sp anning T ree Protoco l - Bridge-w ide Q Displa y STP Enable Stat us Q Disabl e STP on Bridge Q Display Bridge STP Attri.
Fast Ethernet P ort Attributes and Statistics 6-3 . T able 6-2 Ether net Port Attr ibutes Name Description MAC Address The MAC address u niquely iden tifying the Ethe rnet port. Admi n Statu s The Port administra tive status. Q Up: P ort is enab led by ma nagement Q Down: P ort is disa bled by manage ment Oper Sta tus The Port operation al status.
6-4 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEM ENT T ASKS Exampl e Enter: [2] [1] 1 The fo llowing informati on for Po rt #1 is d isplayed: Figure 6-1 Fast Ethernet Port Attribut es and Statist ics Display In Unk nown All frame s rece ived on the port and discar ded due to unkn own protocol s.
Disabl e a Fast Ethern et Port 6-5 Disable a Fast Ethernet Port Disabl e or enable the Admin status of a Fast Ethernet port (se e “Fast Ethernet Por ts” on page 11-5 fo r general infor mation about Ethernet ports). Exampl e Enter: [2] [2 ] 4 U Ethernet Por t 4 is enabled .
6-6 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEM ENT T ASKS Example Enter: [2] [3] [1] The fo llowing is displ ayed: Figure 6-2 Br oadcast Throttling Attri butes Display . Update Br oadcas t Thr eshold Updates b r o adcast attrib utes. Exampl e Enter: [2] [3] [2] 4 500 300 The high an d low thr esholds f or port 4 ar e updated.
Update Fast Etherne t Port 6- 7 Exampl e Enter: [2] [3] [3] 4 E Broadcast thr ottling for Port 4 i s enabled. Update Fas t Ether net Port Updates Fast Ethe rnet port attr ibutes. For more information see “Fas t Ethernet Port Char acteristi cs” on page 6-3 an d see “Fast Ethe rnet Ports” on pa ge 11-5.
6-8 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEM ENT T ASKS Example 1 - for Tx p o rt type Enter: [2] [4] 1 H The Fast Ethernet Tx por t #1 is set to ha lf duple x. Example 2 - for Fx p ort type Enter: [ 2] [4] 1 D 10 The Fast Ethernet Tx por t #1 is set to au tomode for dup lex and a fixe d speed of 10 Mbps.
Bridge Attri butes and Statistics 6- 9 Exampl e Enter: [3] [1] 0 The fo llowing is displ ayed. Figure 6-3 Bridge A ttributes and Statistics Displa y T able 6-13 Bridge Attributes and Statistics Name Description Brid ge Addres s The MAC a ddress u niquely iden tifying the l ogical brid ge.
6-10 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Update Bridge-a ging- time Update th e bridge FDB pa rameter bri dge-agi ng-time f or a specified bridge. For mor e infor mation about bridges in Et hernet LANs see “T ransp arent Brid ges” on pa ge 11-6 .
Bridge-port Attri butes and Statistics 6-11 Exampl e Enter: [3] [2] 0 1 The fo llowing is displ ayed: Figure 6-4 Bridge A ttributes and Statistics Display Delay Exceed ed Discard s The number o f frames discarded by the port, due to exces sive transi t delay through the bridge .
6-12 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Display All Entries in Fo rwarding Database Displays the complete Forw arding Database (FDB) for the specified bridge, includin g all addr esses, the ports they ar e mapped to and thei r status.
Displa y All Entries in Fo rwarding Data base 6-13 Figure 6-5 Forwar ding Database Displa y -------------------------------------- --------------- Addr: 0180c2000000 Port: 0 Status: Management Addr: 0.
6-14 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Dis pla y Learned Entries in Forwarding Database Displays only the lear ned entri es in the For war ding D atabase for th e spec ified brid ge.
Display Static Entries in Forwarding Database 6-15 Display Static Entries in Forwar ding Database Displays on ly the static entr ies in the Forwarding Data base for the specifi ed bridge. T hese entries ar e either pr edefined or have been confi gur ed via manag ement.
6-16 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS T able 6-22 St atic T ab le Fields Name Description Addr The MAC a ddress to which the entry relates. Rcv-P Allowed receive (inpu t) port for this add ress. A zero in this fi eld means t hat all ports a re allowed .
Display Static Entries in Forwarding Database 6-17 Static Addr esses Al lowed-to B inary T a ble The Allo wed-to f ield speci fi es where t he frames arri ving on a gi ven address and brid ge port must be forwar ded to.
6-18 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Exampl e Enter: [3] [3] [3] 0 The fo llowing is displ ayed: Figure 6-7 St atic T able Display -------------------------------------- ---.
Enter or Modi fy a Static Address in FDB 6-19 Enter or Modify a Static A ddr ess in FDB Add a new st atic addr ess to the FDB o r update an existi ng one. Th e static entry is ad ded to the Forwa r di ng Database or u pdated with ne w destin ations if it exi sts.
6-20 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Exampl e Enter: [3] [3] [5] 0 0180c2000000 1 4 In t he stati c Forwar ding Databa se of b ridge #0, the MAC a ddr ess 0180c2000000 is block ed for input bri dge-por t #1 and outp ut b ridge ports #4.
Dis play ST P Enab le Status 6-21 In t he static Forwar ding Databa se of bridge #0, t he MAC a ddr ess 0180c2000000 is removed for in put bridge-po rt #1. Display ST P Enable Status Displ ay STP en able st atus for al l bridge s. For gene ral info rmation about the STP see “S panning T r ee Pr otocol ” on page 11-8.
6-22 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Exampl e Enter: [3] [4] [4] 0 D Disabl es the STP on brid ge 0 and pr oduces the followin g message: Bridge #0: STP is now disabled. Dis play Br idge ST P Attribut es Display all STP attrib utes for a specified brid ge.
Display Bridge ST P Attributes 6-23 Exampl e Enter: [3] [4] [2] [1] 0 The ST P attrib utes for brid ge #0 is d isplayed as fol lows: Figure 6-9 Bridge S TP Attributes Displa y Hold-Tim e A fixed bridge parameter specif ying the minimum time peri od elapsi ng betwee n the tra nsmiss ion of CBP DU s through a given bridge-port.
6-24 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Update Bridge-wide S TP Paramete rs Updat e bridge ST P paramete rs: bri dge-pr iority , bridge-max- age, bridg e-hell o-time, an d bridge-forwa rd -delay (se e “Manage ment Bridge Paramet ers” on page 11-8 f or mor e informat ion abou t the STP parameters) .
Update Brid ge-wide STP Parameters 6-25 Exampl e Enter: [3] [4 ] [2] [4] 0 2000 The bri dge-hel lo-ti me for brid ge #0 is set to 2000 secs. Update Bridge-fo rwar d- dela y Update th e STP parameter br idge- forwar d-delay for a specif ied bridge .
6-26 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Dis play Br idge- port STP Attributes Display all STP attrib utes for a specified brid ge-port.
Disable B ridge-port 6-27 The attri butes of port # 1 of bridg e #0 ar e displayed as follows: Figure 6-10 Bridge-port STP Attributes Display . Dis able Br idge- port Disabl e and enable a br idge-por t for a specifi ed bridge f or management . Exampl e Enter: [3] [4] [3] [4] 0 1 D Disabl es bridge- port 1 on br idge 0.
6-28 C HAPTER 6: F AST E THERNET AND B RIDGE M ANAGEMENT T ASKS Exampl e Enter: [3] [4] [3] [2] 0 1 128 The brid ge-port-priori ty for port #1 of bridge # 0 is set to 128 . Update Brid ge-path- cost Update th e STP parameter br idge- path-cost fo r a specified br idge.
7 M ANAGING AT M R ESOUR CES This chapt er contain s detaile d descripti ons of common manage ment tasks for th e internal A TM p ort of the 7600 Car d. Please se e “Bridges in the 7600 Car d” on page 12- 10 for gene ral backgr ound mat erial concerning ho w the internal A TM po rt conne cts a bridge t o the A TM netwo rk in the 7600 Card.
7-2 C HAPTER 7: M ANAGING ATM R ESOURCES Display A TM Port Attribut es and Statistics Displays the in te r nal A T M port attributes and statistics (refer to T able 7-2) Exampl e Enter: [4] [1] T able.
Disp lay Brid ge ATM ad dress 7- 3 The fo llowing sample A TM statistic s r e port is displaye d. Figure 7-1 A TM Statistics Report Display . Dis play Bridge A TM address Displays the current A T M addresses of the bridges.
7-4 C HAPTER 7: M ANAGING ATM R ESOURCES Exampl e Enter: [4] [2] [1] The fo llowing is a samp le A TM add r e ss displa y: Figure 7-2 A TM Addres s Display Updat e Bridge A TM Address Enter the bridge num ber and the A TM a ddre ss (o r “!” to invali date the A TM address) t o update the local A TM addre ss.
Display T M Configurat ion 7-5 Exampl e Enter: [4] [2] [4] 0! Restores the a utomatic ILM I address r e gistration for bridge #0. Display TM Conf iguration Displa ys the T raf fic Ma nagement configur ation. Refer t o Chapt er 13 for mor e infor matio n about T raf fic Manag ement in the 76 00 Car d.
7-6 C HAPTER 7: M ANAGING ATM R ESOURCES Figure 7-3 T raffic Management configuration display Enable TM Enab le T r affic Manage ment op eration. Th e applic ation of this men u item toggl es TM operatio n on and of f. . Example Enter: [4] [4] [2] The state of TM is changed f ro m enabled to disa bled and vice versa.
Display T M Clients 7-7 Enter: [4] [4] [3] [1] The TM r e mote Client Database is d isplayed as fol lows: Figure 7-4 TM Remote Client Database Di splay Ta b l e 7 - 8 Characteristics of TM Remote Clie.
7-8 C HAPTER 7: M ANAGING ATM R ESOURCES Add TM Client Add T raffic Mana gement client to r e mote Client Databa se. For more informa tion see “Displ ay TM Clien ts” on page 7-6.
Update UNI Version 7-9 . Example Enter: [4] [4] [3] [3] 1 Entry #1 i s r emoved fr om the r emote Cl ient Database Update UNI V ersion Choose bet ween worki ng with UN I 3.0 and UNI 3.1 vers ions. Exampl e Enter: [4] [6 ] The fo llowing screen prompt is displaye d.
7-10 C HAPTER 7: M ANAGING ATM R ESOURCES A TM por t is ena bled. T he follo wing sc r e en mess age is d isplaye d: Context #0 Event: ATM port Link Up.
8 M ANAGING LAN E MULATION C LIENTS This chapt er contain s detaile d descripti ons of common manage ment tasks for the LAN Emul ation Cl ient of th e 7600 Ca rd .
8-2 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS Q T opology-ch ange- fl ag Q Expected LE_ARP r esponse-time Q Flush-ti meout Q Path-switchi ng- delay Q Conne ction- comple tion-timer Manage data-fra.
Display LEC Stati stics 8-3 Exampl e Enter: [5] [1] 0 The fol lowing connect ion state and statistic s for the bri dge #0 ar e disp layed: In Dis cards All LE frames received by the LEC, discarde d for internal reasons, for exa mple, queues. In Errors All LE frames received by the LEC, discarded du e to errors.
8-4 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS Figure 8-1 LEC Attr ibutes Displa y Display Curr ent LEC Conf iguration Displays the curr ent LEC configuration and status, including LE C S, LES and BUS information (r efer to T able 8-4). Fo r general in formation about LECs see “L AN Emulati on Overview” on page 12-5.
Display Current LE C Configura tion 8-5 Exampl e Ente r: [5] [2] [1] 0 The fol lowing LEC conf igurati on and status f or the brid ge #0 are disp layed. Figure 8-2 LEC C onfiguration and Status Di splay Control Dire ct VCC VP I/VCI value s of the contro l-direct VCC from the LE C to the LES.
8-6 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS Updat e LECS Address Enter th e bridge numbe r an d A T M addr ess (or “!” to inval idate the address) to update the LECS address. For gener al information abo u t LECS see “LAN Em ulation O vervie w” on pa ge 12-5.
Update LES Address 8-7 Update LES Address Enter the bridge number a nd A TM addr ess (or ! to inval idate the addr ess) to upd ate the LES a ddr ess. For general inf ormatio n about L ECs see “LAN Emulat ion Over view” on page 12 -5.
8-8 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS Display LEC Operatio nal Paramete rs Displays the LEC operational p arameters for th e specified brid ge (refer to T able 8-10).
Update LEC Operation al Parameters 8-9 Exampl e Enter: [5][3][1] 0 The L EC operat ional in formatio n for the LE C of b ridge #0 i s displa yed as follow s: Figure 8-3 LEC Operational Parameters D is.
8-10 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS The contr ol-tim eout paramet er for th e LEC of brid ge #0 is upda ted to 100 seconds. VCC- timeout-period Enter the br idge numbe r and contr ol-timeou t value to update the VCC-tim eout-period pa rameter .
Update LEC Operation al Parameters 8-11 Forward-delay-time Enter t he bridge nu mber and fo rwar d- delay-time v alue to update the LEC forwar d-delay-time paramete r . Exampl e Enter: [5][3][5] 0 20 The forwar d-delay-tim e parameter for the LEC of bridge #0 is updated to 20 se conds.
8-12 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS Exampl e Enter: [5][3][7] 0 2 The expect ed LE_ARP r esponse- time paramet er for the LEC of bridge #0 is upda ted to 2 seconds. Flus h-timeo ut Enter the bridge number and flush-timeou t value to upda te the LEC flush- timeout paramet er .
Update LEC Operation al Parameters 8-13 Exampl e Enter: [5][3][9] 0 5 The pa th-switching- delay para meter for the LEC of bridge #0 is updated to 5 second s. Conne ction- comp letion-timer Enter th e bridge numbe r an d connection -completi on-ti mer value to upda te the L EC conne ction-comple tion-t imer pa rameter .
8-14 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS Display LEC Control-fra me Statistics Displays the LEC control frame statistics for the specified brid ge number (r efer to T able 8-2 1). For mor e informa tion see “Emu lated LAN Conne ctions” on page 1 2-7.
Display LEC Control-frame Statistics 8-15 Exampl e Enter: [5][4] 0 The LEC contr ol frame statist ics for the brid ge #0 ar e displayed as f ollows: Not Ours (In E rrors) Number of LE control frames not intended for the LEC received.
8-16 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS ------------------------------------- ------------------------------- Statistics for LE Client of bridge 0: ===================================== In .
Reset LEC Control -frame Statistics 8-17 Figure 8-4 L EC Contr ol Frame Statist ics Dis play . Reset LEC Control-fra me Statistics Resets the LEC contro l-fram e statistics to zer o for the spe cified brid ge. For mor e infor matio n see “Emulat ed LAN Connect ions” on pag e 12-7.
8-18 C HAPTER 8: M ANAGING LAN E MULATION C LIENTS No unica st frames ar e sent to the BUS for the spe cified bri dge and the follow ing mes sage is d isplayed.
9 S ETTING N ETWORK P ARAMETERS This chapt er contain s detaile d descripti ons of common manage ment tasks for setting up you r 7600 Card to work with an SNMP ma nager (for examp le, T ransc end A TM M anager), T F TP o r T elnet (if work ing through the CELL plex 700 0 unit) .
9-2 C HAPTER 9: S ETTING N ETW ORK P ARAMETERS Dis play Cu rr ent IP Conf iguration Displa ys the curr ent IP configurati on for each of the bridge s (r efer to Ta b l e 9 - 2 ) . Exampl e Enter: [7] [1] [1] The fo llowing is displ ayed: Figure 9-1 IP Configuration Display .
Update Default Gat eway 9-3 Exampl e Enter: [7] [1] [4] 0 100.0.2.2 The IP Addre ss for bridge #0 is up dated to 100.0.2 .2 Update De fault Gateway Enter the bridge number and the new Defa ult Gateway to up date the Default Ga teway for the spe c ified bridge.
9-4 C HAPTER 9: S ETTING N ETW ORK P ARAMETERS Update Su bnet Mask Enter t he bridge nu mber and the new subnet mask to updat e the subnet mask for the spec ified bridge. Exampl e Enter: [7] [1] [6] 0 255. 255.255 .0 The Subnet Mask for bri dge #0 is up dated to 255.
Update NMS IP Address 9-5 Figure 9-2 SNMP Configuration Display . Update NM S IP Address Enter th e bridge numbe r an d the new NMS IP addr ess to update the Network Ma nagement Stat ion (NMS) IP addr ess, for recei ving SNMP traps. Exampl e Enter: [7] [2] [2] 0 100.
10 M ANAGING S YSTEM F UNCTIO NS This chapt er contain s detaile d descripti ons of common manage ment tasks for th e system functions o f the 7600 Card.
10-2 C HAPTER 10 : M ANAGING S YSTEM F UNCTIONS Q Update Wr ite-access Passwor d Q Update Admin-access Passwor d Manag e event message s Q Enable/ Disable Event Messages Resetting system Q Reset a nd Reb oot Display So ftwar e V ersion Displays the current software version, revision numb e r and date of implemen tation.
Display Software Downlo ad Status 10-3 Display So ftwar e Download Statu s Displa y the status of the last TF TP softwar e download. Exampl e Enter: [1] [9] [1] Status of last TF TP softwar e download is displaye d: Download Software from Network Downloa d the softwar e via the network b y TF TP .
10-4 C HAPTER 10 : M ANAGING S YSTEM F UNCTIONS Erase Software fr om Fl ash Erase th e softwar e program from f lash prio r to download ing of the new system softwar e from a PC or workstatio n with a VT100 terminal emulat ion att ached dir ectly to the 76 00 Car d thr ough the emergenc y serial port.
Display Hardware Confi guration 10-5 9 The fi le will n ow down load. Wh en the do wnload i s complete , a prompt appears. Refer to the docume ntation of your te rminal emulati on for more inform ation on downloa ding fil es. 10 Push the Switch Bo ard back into the CELLplex 700 0 Switch.
10-6 C HAPTER 10 : M ANAGING S YSTEM F UNCTIONS Figure 10-1 Har dware Configuration Di splay Set System Conf iguration Mode Enter th e desire d system configuratio n mode. The def ault mode is t he curr ent sy stem c onfigura tion m ode. Exampl e Enter: [1] [3] [5] -------------------------------------- ------------------- Context No.
Set St ore-and- Forward Mode 10-7 The sy stem conf iguration mode is se t according to fol lowing promp t. The current mo de is displ ayed after th e colon. T o a ccept it press “enter”; to change it type over th e new choice and pr ess “enter”.
10-8 C HAPTER 10 : M ANAGING S YSTEM F UNCTIONS Displa y Timeout Paramete rs Display the softwar e and har dware timeout para meters. Refer to T able 1 0-9 for descri ptions of the timeout pa rameters.
Display Timeout Parame ters 10-9 Exampl e Enter: [1] [3] [8] [1] The fol lowing is a sampl e timeout para meters report : Empty cel l counter The number of free cells i n CRAM. Full qu eues mas k The curr ent status o f the q ueues (12 Eth ernet, 1 ATM, and the software queue).
10-10 C HAPTER 10 : M ANAGING S YSTEM F UNCTIONS -------------------------------------- ---------------- Timeout recovery process report: -------------------------------- Timeout delay : 30 (SW: 30) C.
Display Timeou t Delays 10-11 Figure 10-2 Timeout Parameters D isplay Displa y Timeout Delays Displa y the softwar e a nd har dwar e t i meout del ays. Exampl e Enter: [1] [3] [8] [2] The fo llowing is a samp le timeou t delay s r e port: -------------------------------------- --------------------- Hardware Timeout delay: 30.
10-12 C HAPTER 10 : M ANAGING S YSTEM F UNCTIONS Hardware Timeout delay has been set. Update So ftware Timeout Delay Enter the new software timeout dela y (in seconds) or 0 to disable the softwar e t imeout mechan ism.
Update Read-access Password 10-13 Update Re ad-access Password Update th e read-access password. T ype th e new password a second time to confirm your entry . Exampl e Enter: [1] [6] [1] The fol lowing d ialog is disp layed. N ote that th e passwor ds themselves ar e not dis played.
10-14 C HAPTER 10 : M ANAGING S YSTEM F UNCTIONS Enter the new write password: mywritep assw Enter the new write password again: my writepassw The password has been changed The write- access passwor d is updated. Update Admin-ac cess Password Update th e admin-access passwo rd.
Reset and Rebo ot 10-15 Exampl e When Ad ministration C onsole event messages are disabl ed Enter: [1] [7] Admini stration Co nsole event messages ar e enabled . Reset and Rebo ot Reset system har dware and r eboot the device for the new system setting s to take e ffect.
III Chapter 11 Ethernet LANs and Bridges i n the 7600 Car d Chapter 12 A TM, LAN E mulation, a nd Virtual LANs Chapter 13 T raff ic Management i n the A TM Network Chapter 14 Device Management Chapter 15 System Modes, Attri butes, and T uning 7600 Car d Capabilities abtthgde.
11 E THER NET LAN S AND B RIDGES IN THE 7600 C AR D This chap ter pr ovides basic conc epts and informat ion about t he follo wing topic s and how the y are impl emented i n the 7600 Car d.
11-2 C HAPTER 11 : E THERNET LAN S AND B RIDGES IN THE 7600 C ARD Figure 11-1 Et hernet LAN (Ethernet Seg ment) Fast Ether net Fast Ethe rnet is a ne w LAN t echnol ogy that uses the same C SMA/CD tra.
Fast Ethe rnet 11-3 Q 10/100 Mbps transmissio n speed These capabi lities dif fer between t he Tx and Fx port t ypes. They ar e presente d in the fo llowing table an d discusse d in the paragrap hs below .
11-4 C HAPTER 11 : E THERNET LAN S AND B RIDGES IN THE 7600 C ARD 10 or 100 Mbp s Speed The 7600 Ca rd ca n communicat e with ei ther a 10 Mbps or i n a 100 Mbps c ommunic ation rat e. This capa bility i s a vaila ble for the Tx po rt type onl y . The Fx por ts communic ate in 100 Mbps o nly .
Fast Eth ernet Ports 11-5 Fast E thernet Ports Ether net LANs ( Et hernet segme nts ) ar e physically con nected t o the 7600 Car d t hr ough one of it s 16 Fast Ethernet ports. Each port has a uni que address a nd port nu mber . Fi gur e 11 -2 below shows E ther net LANs connect ed to the 7600 Car d Ethernet ports.
11-6 C HAPTER 11 : E THERNET LAN S AND B RIDGES IN THE 7600 C ARD T ran spar ent Bridges The transpar ent bridge is a devi ce that co nnects t o two or mor e LANs and pr ovides a sele ctive data pack et transfer capabil ity between them which allows th em to work in a bridged -LAN envi ronme nt.
Tran sparent Bri dges 11-7 Forwarding Database The ef fective bandwid th of the brid ged LAN can be incr eased by means of th e For warding Dat abase (FDB), a memory cache in the bridge whi ch contai ns a table of stat ion addr esses and associated bridge por t numbers.
11-8 C HAPTER 11 : E THERNET LAN S AND B RIDGES IN THE 7600 C ARD Static Addr esses The n etwork manage r may want to r estrict a p articular statio n to communica te onl y th r ough speci fic i nput a nd ou tput br idge p orts i n order to keep its traffic confined to certain portio ns of the netwo rk topolo gy .
Spa nning Tree Protocol 11-9 trans par ent bridg es the brid ged LAN ca n contain pa ths on which packet s may loop and multiply , lowering its effective o verall bandwid th. Figure 11-4 Pa cket looping through r edundant bridges T o solve this proble m, the IEEE 80 2.
11-10 C HAPTER 11 : E THERNET LAN S AND B RIDGES IN THE 7600 C ARD Designate d Bridge on a LAN Among all b ridges on a LAN, the bridge with the sho rtest path to the root bridge ( thr ough its r oot port ) is selec ted as th e desi gnated-b ridge on that LAN.
Brid ged-LAN E nvironm ents in the 7600 Car d 11-11 Manag ement Bridge Parameters The fol lowing brid ge parameter s can be set by manag ement. The parameters listed in T able 11-3, ar e port-independent whi le the parameter s in T able 11-4 ar e set for ind ividual bri dge ports.
11-12 C HAPTER 11 : E THERNET LAN S AND B RIDGES IN THE 7600 C ARD Loca l Bridged- LAN Envi r o nment For the purpo se of for ming brid ged-LAN envir onments, the 7600 Ca rd provides u p to 16 inter nal br idges that can be configu r e d by managemen t.
12 A TM, LAN E MULATION , AN D V IRTUAL LAN S This ch apter pr ovides b asic conce p t s and i nformati on abou t: Q A TM Overview Q Virt ual Channels Q Interim Local M anageme nt Interf ace (IL MI) Q.
12-2 C HAPTER 12: AT M, LAN E MULATION , AND V IRTUAL LAN S A TM Basi cs Cell S witching A TM uses short, fix ed length packets called cells. The first five bytes of each c ell, the header , contai n the inf ormatio n necessary to deliver the ce ll to its destination .
Virtual C hannels 12-3 Vir tual Channels A T M is a conne c tion-o riented transport s ervice, much like a telephone. A s opposed t o Ethernet, wher e data is sent out on a common bu s, A TM r equir es that a virt ual chan nel connec ting the source stat ion to the destin ation statio n be establi shed befor e data transmissi on can begin .
12-4 C HAPTER 12: AT M, LAN E MULATION , AND V IRTUAL LAN S Q Point- to-point an d point-to-m ultipoint co nnections Switched Virtual Channe ls SVC conn ections ar e defined dynami cally as they a re need ed and r eleas ed when not ne eded, using signalli ng as per A TM Forum UNI standar ds.
LAN Emul ation Ov ervi ew 12-5 Q Physical La yer Q A TM Layer Q A TM Layer Statistics Q Virtu al Path Co nnectio ns (VPC) Q Virtua l Channel Connecti ons (VCC) Q Addr ess Regi strati on I nform ation .
12-6 C HAPTER 12: AT M, LAN E MULATION , AND V IRTUAL LAN S LE Service norma lly r esides on a cen tral A TM switch, such as the CELLplex 7000, but may r e side on an A TM end sta tion instead . An ELAN is assig ned a name ( ELA N name ) which is communicated to each LEC as the LEC joins the ELAN .
Emulate d LAN Conn ections 12-7 Q Unknown traf fi c All br oadcast, multi cast and unknown t raf fic to and fr om a LEC passes thr ough a singl e BUS. The BUS al so handles A TM connection s and manage s its distribut ion group.
12-8 C HAPTER 12: AT M, LAN E MULATION , AND V IRTUAL LAN S LEC Co ntr ol Fra me Statisti cs Display The operato r can display statis tics on the various ty pes o f control frames in and out of the LE.
Emulate d LAN Conn ections 12-9 Figure 12-1 VCCs i n LAN Emulation Compone nts LEC Co nfigur atio n and Status Informa tion The fo llowing informati on about the conf iguration of the b ridge LEC in t.
12-10 C HAPTER 12 : ATM, LAN E MULATION , AND V IRTUAL LAN S Bridges in the 760 0 Card In the 7 600 Card a LEC is atta ched to each Ether net transparent brid ge which is set up i n the dev ice.
Brid ges in t he 7600 C ard 12-11 Figure 12-2 Bridges in the 7600 Card The foll owing figure sho ws data-direct VCC s configured betwee n two 7600 car ds: Figure 12-3 Virtual Cir cuit Connections Cell Sw itching in th e Bridg e In fact, both Ethernet and A TM switchin g in the brid ge are co mbined in a single A SIC called ZipC hip .
12-12 C HAPTER 12 : ATM, LAN E MULATION , AND V IRTUAL LAN S Bridge F orwarding Database In order to forwa r d d ata frames efficiently to both local LAN st ations on the transp ar ent br idge as wel .
Brid ges in t he 7600 C ard 12-13 Data-direct VCC O n r ece ipt of the d estinat ion LEC address, the t ransmit ting LEC establish e s a da ta-dire ct VCC for direct communication acr oss the A TM net.
12-14 C HAPTER 12 : ATM, LAN E MULATION , AND V IRTUAL LAN S Aging in the LE_ARP Cache As in th e transpar ent bridge FDB, in active ent ries in the LE_ARP cache ar e r emoved (age d out). T wo LEC parameters ar e employed for this purpose: aging-ti me and for ward-de lay-ti me .
Data T rans missi on over an EL AN 12-15 Data T rans mission over an ELAN Unicast Frames When a LE C has est ablishe d thr ough addr ess reso lution that a certa in LAN desti n ation co rr e sponds to.
12-16 C HAPTER 12 : ATM, LAN E MULATION , AND V IRTUAL LAN S Flush proto c ol Acco rding to the previous section , a un icast fr ame can be sent to a destina tion LEC o ver t wo VCC path s: a dat a-direc t VCC or a multica st-send VCC via the BUS.
Virtual LANs Overview 12-17 Virtua l LANs Overview V irtua l LANs (vLANs) rep re sent locati on-ind ependent log ical user gr oups. LAN Emulation a llows you to create enterprise-wid e vLANs that closely correspo nd to how your netw ork and busines s actually functio n.
12-18 C HAPTER 12 : ATM, LAN E MULATION , AND V IRTUAL LAN S abilit y to defin e multip le emulate d LANs pe rmits the ne twork man ager to create severa l bridged LAN do mains wit hin a single A TM networ k.
Virtual LANs in th e 7600 Card 12-19 a Virt ual LAN. The LAN sta tions communicate over the VCCs se t up by the EL AN. Figure 12 -4 shows how two such vLAN s, for exa mple Eng ineerin g and Finance, might be con nected on t he A TM network.
12-20 C HAPTER 12 : ATM, LAN E MULATION , AND V IRTUAL LAN S Figure 12-4 vLAN Connectivity thr ough 7600 Cards The fol lowing figu re shows a diff er ent way of viewin g the r elatio n between EL AN and vLAN. The ELA N is embedded in the vLAN. abtthgde.
Virtual LANs in th e 7600 Card 12-21 Figure 12-5 ELAN in a Virtual LAN Virtual LANs for three Workgroups Figur e 12-6 shows the physi cal an d virtual view of a n etwork divided into thr ee v LANs: M arketing, Finan ce.
12-22 C HAPTER 12 : ATM, LAN E MULATION , AND V IRTUAL LAN S Figure 12-6 Logical and Physical View of a Ne twork W ith vLANs abtthgde.book Page 22 Tuesday, June 23, 1998 10 :29 AM.
13 T RAF FIC M ANAGEMENT IN THE AT M N ETWORK This chapter discusses the T raffic Ma nagement (T M) functi on within th e A TM network and i ts implemen tation in the 7600 Ca rd .
13-2 C HAPTER 13 : T RAF FIC M ANA GEMENT IN THE ATM N ETWORK tran sfer dela y . The ABR service do es not r equire bou nding th e delay or the d elay varia tion experien ced by a give n connecti on. The UBR service category i s inherently open -loop.
Traffic Manageme nt Conce pts 13-3 Q Directly insert feed back control information in to RM-cells whe n they pass in the fo rward or back war d d ir e ction Q Indirectly inform the s o urce about congesti on by setting the EFCI bit in the data cell header of the cells of the forward infor mation flow .
13-4 C HAPTER 13 : T RAF FIC M ANA GEMENT IN THE ATM N ETWORK the sen ding rate is reduce d. When t he source end s tation recei ves a backw ard RM cell wit h the CI bit clear ed it may incre ase the sendin g rate on that par ticula r VC.
Traffi c Rates S haping i n the 7 600 Card 13-5 Q T raffic shaping i s a mechani sm that a lters the tr aff ic charact eristics of a str eam of cells on a VCC o r a VPC to a chieve a desir ed modification of those tr aff ic charac teristics. Th e VBR qua lity of se rvice cl ass makes use of traffic shap ing.
13-6 C HAPTER 13 : T RAF FIC M ANA GEMENT IN THE ATM N ETWORK Flow Rate Adjustment T raff ic Managemen t in th e 7600 Car d operate s with bot h EFCI ba s e d and Expli cit Rate (ER) bas ed flow cont r ol met hods. T rans mission Ra te Profiles The data tr ansmission r ate is contr olled by means of rate tables call ed profi les .
Traffic Manage ment in the Network 13-7 Tr a f f i c Manage ment i n the Network Figur e 13-2 below shows a netw ork scenario , wher e two 7600 Car ds, denote d by source statio n and dest inati on stat ion ar e found wi th an A TM cloud b etween them.
14 D EVICE M ANAGEMENT This chapt er explains t he applica tions enabli ng admini strative an d managemen t funct ions in the 7 600 Car d. The foll owing top ics are discuss ed: Q The user int erfaces.
14-2 C HAPTER 14 : D EVICE M ANAGEM E NT Figure 14-1 Use r Interfaces and Pr ot ocol s used to access the 7600 Car d In-Band & Out-of-Ban d Manage ment Confi guratio n of the 760 0 Car d can be performed via an Admini stratio n Console or an SNMP-base d exter n al network mana gement applicat ion runni ng on a workstat ion.
7600 C ard Manage ment 14-3 If ther e is a dedicated network f or management data , then the netwo rk is being man aged out-of-band . The adv antage of using out-of-ba nd managemen t as opposed to in .
14-4 C HAPTER 14 : D EVICE M ANAGEM E NT Figure 14-2 7600 Ca rd Administration C onsole Even if yo u wish to use SNMP ma nagement, you must first conne ct a terminal to the serial p ort, set the V N/bridge con figuration, a nd per bridge IP ad dress and subn et mask.
7600 C ard Manage ment 14-5 Figure 14-3 T ranscend Enterprise Manager (SNMP Manager) Access to th e SNMP agent i s in-ban d via any of t he Ethernet segment s or A TM port of r emote stations. Man agement of all r emote 7600 units is supporte d by the SNMP agent , reg ar dless of virt ual LAN member ship.
14-6 C HAPTER 14 : D EVICE M ANAGEM E NT Figure 14-4 SNMP Manager Protocol Access Manag ement Inform ation Bases (MIBs) Managed objects a re acc essed via a virtual informat ion st ore, terme d the Manag ement In formatio n Base (M IB).
7600 C ard Manage ment 14-7 Security SNMP securi ty is pr o vided thr ough commun ity str ings. A co mmunity string is in cluded in each SNMP protocol message sent betwe en external management app licatio ns and the 7600 Card .
14-8 C HAPTER 14 : D EVICE M ANAGEM E NT Figure 14-5 Local Managem e nt Pr otocol Access abtthgde.book Page 8 Tuesday, June 23, 1998 10: 29 AM.
15 S YSTEM M ODES , A TTRIBUTES , AND T UNING This chapt er explains t he administr ative and mana gement funct ions in the 7600 Card includin g sy stem mo des, attributes and tun ing. Forwarding Modes Data f rames r eceived fr om the Fast Ethernet ports pass thro ugh the ZipChi p ASIC and ar e stor ed in the sha red CRAM (Cell RAM) memory .
15-2 C HAPTER 15 : S YSTEM M ODES , A TTRIBUTES , AND T UNING Cut-Through M ode Cut-through mode enable s a frame to be forwarded to a destination addr ess even befor e the entir e frame has been r eceived. Y ou can confi gur e the r equir ed numbe r of cel ls to be r eceived bef ore tran smission starts.
Cons ole Pas swords 15-3 Consol e Passwords The A dministra tion Cons ole requires pas swords at t he variou s access levels : re ad, write and admi n.
A T echnical Support 3Com provides ea sy acces s to tech nical sup port infor mation th r o ugh a variet y of on-li ne and te lephone serv ices. This appendix descr ibes thes e services.
A-2 A PPENDIX A: T ECHNICAL S UPPORT Ask3Co m on Comp uServe Ask3Com is a CompuS erve-based service cont aining patches, softwar e, drive rs, and technical articles a bout al l 3Com produc ts, as we ll as an interact ive forum for technical que stions.
Teleph one Supp ort A-3 Support fr om 3C om If you ar e unable to r eceive support from yo ur netwo rk suppli er , technica l support contracts ar e available fr om 3Com. In the U.S. and Canada, call (800 ) 876-32 66 for cus tomer se rvice. If you ar e outside the U.
A-4 A PPENDIX A: T ECHNICAL S UPPORT If you ar e unable to contact your network supplier , r efer to T able A-4 on how to cont act 3Com. Returnin g Pro d u cts for Repair A product sent di r ectly to 3 Com for r epair must first be assigne d a Retu rn Mater ials Author izatio n (RMA) n umber .
B T R OUBLESHOOTING This chapt er explains ho w to identify and corr ect probl ems, and how to perform re lated diagnostic tasks, such as r eplacing fuses and cleaning fiber opt ic cables. If you hav e pr oblems that ar e not addr essed in thi s chapter , contact 3Com T echni cal Supp ort o r your servic e person .
B-2 A PPENDIX B: T ROUBLESHOOTING the ca bling and connectio ns at the port . T ry sending the da ta thr ough anothe r port: if you can forwar d data thr ough the un it via an other p ort, it indicates a local pr oblem with the first po rt. Re-examine ca bling connect ions.
Rela ted Dia gnostic Pr ocedure s B-3 A void touc hing all sur faces afte r cleaning t he connector s, and keep all unused por ts covere d. Ne touche r aucune surface après le nettoyage des connecteurs et garder les p ièces inu tilisées couvertes .
C 7600 F AST E THER NET C AR D S PECIFICATIONS This chapt er contain s the specifica tions of the 7600 Ca rd. Physical Interfaces Q Fast Ethernet 8 or 16 100Base-Fx or 100Ba se-Tx Ports Q Manag ement .
C-2 A PPENDIX C: 7600 F AST E THERNET C ARD S PECIFICATIONS Q LAN Emul ation Cl ient (L EC) suppor t Q Local ma nagement via t he CELLplex 7000’ s RS-23 2 port Q Congesti on management Q MIBs suppor.
Stan dards Co mpliance C-3 Standards Compliance Safety Q Agency Certifi c ations: UL 1950, CSA 22.2 No. 195 0, EN 60950, I EC 825-1 825- 2, PCB UL 94V -0, PCB ANSI/IPC- RB-276 clas s 2 Q Designe d to .
G LOSSARY 7600 Ca rd A 36-port A TM/Ethernet interfa ce car d in the CELLpl ex 7000 chassis. Asynch r ono us T ransfer Mod e (A TM) A transfer metho d used for LAN and W AN. A TM carries voice, video, and data at spee ds up to 2.2 Gbps and can integrat e geograp hically distan t disparate net works.
2 G LOSSARY cell An A T M L ayer protocol d ata unit (PDU ) characterized by fi xed, rather than varia ble, leng th payloa ds. The standa rd A TM cell is 48 bytes of paylo ad with 5 byte s of he ader . CELLpl ex 7000 Swit ch A hi gh-performa nce, modu lar A T M switch.
G LOSSARY 3 in-band T ransmission of auxi liary i nformation , e.g., manage ment messages over the media also used by the system users. Inter net Proto col (IP) The prot ocol governing packe t forwar ding within the T ransmission Contr ol Pr otocol/I nternet Pr otocol (TCP/ IP) sui te of st andar ds developed and used on the In ternet.
4 G LOSSARY out- of-ban d T ransmission of auxil iary informati on e.g., manag ement messages, over a media other than that used by the system users. point-to- point call A two -way call or conn ection that has one sour ce and one desti nation .
G LOSSARY 5 User Network Interface (UNI) The UN I inter connects an A TM user with an A TM switch. Wide Area Network (W A N) Data communi cations ne twork spannin g very large geo graphic al ar eas.
I NDEX 1 I NDEX Numbers 100BASE -Fx 2-5 100B ASE-Fx port 1-1 100BA SE-Tx 2- 5 100B ASE-Tx port 1-1 3Com Bu lletin Board Servi ce A-1 3ComFa cts Automa ted Fax Se rvice A-2 7600 C ar d brid ge s etup 1.
2 I NDEX For war ding d ata base 6-12, 6-14 fram e traffic statistic s 6-10 frames 6- 10 mappi ng to Ethernet port s 6-8 numbe r 6-9 STP Attr ibutes 6- 26 Bridged- LAN environme nts 11- 12 Broadcast a.
I NDEX 3 LEC cont r ol-fram e statistics 8-14 LEC oper ational para meters 8-8 LEC st atis tics 8-2 main menu 4-1 SNM P configurat ion 9 -4 softw are download st atus 10 -3 softwar e time-ou t para me.
4 I NDEX fram e traffic statistic s 6-10 front panel with physical m odules 1-1 functi onal overview 1 -1 G guide scope 1 typogr aphical conv entions 2 H hardware configur ation 1 0-5 hardware t i me .
I NDEX 5 popul ati ng 12-6 Link st atus 2-9 LM securi ty 14-7 local manageme nt termina l 2-6 Local Mana gement, see LM locatin g informa tion i n docume nts 3 M MA C address 6-3 , 12-1 3 Ethe rnet po.
6 I NDEX r oad ma p of d ocumen tatio n 3 S safety pr ecaut ions 2-1 safety standa rds C-3 SC c onnecto r 1 -3 scope of this gui de 1 secur ity SNM P 14-7 selectiv e cell discar ding 13-4 Seria l Port.
I NDEX 7 Te l n e t 1 4 - 1 temp erature operat ing C-2 stor age C-2 TF TP softwar e download 10-3 time-out disp lay 1 0-11 time- out tuning 15- 2 traf fic managemen t 13-3 conn ection adm ission cont.
8 I NDEX overvi ew 12-17 Virt ual LANS, see vLA Ns Virt ual Path Connecti on see VP C Virt ual Path Ide ntifier , see VPI 12 -3 virt ual t ermi nal pr otoc ols 14-1, 14-7 VPC 12-3 Z ZipChip AS IC 7600 Ca r d 12-11 abtthgde.
An important point after buying a device 3Com 7600 (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 7600 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 7600 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 7600 you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 7600 will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 7600, 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 7600.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 7600. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 7600 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
