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FrameSaver ® SL V Configuratio n Reference Docume nt No. 9000-A2-G B31-00 Decem ber 2002.
A Decembe r 2002 9000-A2-G B31-00 Copyright © 2002 Paradyne Corporatio n. All righ ts r ese rved. Prin ted in U.S. A. Notice This pu blicatio n is p rotected by feder al copyri ght law .
9000-A2-G B31-00 Decembe r 2002 i Contents About This Guide n Purpose an d Intend ed Audie nce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v n Document Organizat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conten ts ii Decembe r 2002 9000-A2-G B31-00 n Configur ing Phys ical In terfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Configur ing the Netw ork Inter face . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 T1 Network Inte rface .
Contents 9000-A2-G B31-00 Decembe r 2002 iii 4 Feature-Specific Configuration n Setting Up an Exter nal Mode m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 n Setting Up an Inte rnal Mod em . . . . . . . . . . . . . . . . . . . . . .
Conten ts iv Decembe r 2002 9000-A2-G B31-00.
9000-A2-G B31-00 Decembe r 2002 v About Th is Guid e Purpose and Intended Audien ce This doc ument list s and desc ribes t he config uration o ptions of the following FrameSav er SL V CSU/DSUs and rou ters ru nning fir mware rele ase 2.
Abou t This Gu ide vi De cember 20 02 9000-A2-GB31 -00 Pr oduct-Related Documents Comple te Parad yne docu mentati on for thi s produ ct is av ailable at www .pa radyne.com . Select Su pport → T echnical Manual s → Frame Saver Fram e Relay D evice s .
About This Guide 9000-A2-G B31-00 December 2002 vii T o order a pa per copy of this or any of the abo ve doc uments : n Within t he U.S.A., c all 1-800- P ARADYN E (1-80 0-727-2396 ) n Outsid e the U.
Abou t This Gu ide viii December 2002 9000-A2-G B31-00 Conventions Used Convention Used When Used Italic T o indicate v ariable informati on (for exa mple, DLCI n nnn , where nn nn denote s a 4-digi t number) .
9000-A2-G B31-00 December 2002 1-1 1 Configuration Pr ocedures This chapter includes the follo wing: n Config uration Menu n Config uration Opt ion Area s n Accessi ng and Display ing Configur ation O.
1. Co nfig ura tion P roce dure s 1-2 December 200 2 9000-A2-G B31-00 Configuration Menu Configur ation opti on setting s determ ine how the FrameSav er unit operates . Use the FrameS aver un it’s Configurati on Edit/Di splay m enu to dis play or c hange configur ation option se ttings .
1. Configur ation Procedures 9000-A2-G B31-00 December 2002 1-3 Configuration Option Ar eas The Fram eSaver unit arri ves with configur ed factor y defaul t settings , which a re located i n the Fa ctory De fault Confi guration option area.
1. Co nfig ura tion P roce dure s 1-4 December 200 2 9000-A2-G B31-00 Accessing and Displaying Configuration Options T o access a nd dis play co nfigurati on option s, loa d (copy) the appli cable configur ation option se t into the edit ar ea. Proc edure T o load a s et of co nfigurat ion opt ions for editing: 1.
1. Configur ation Procedures 9000-A2-G B31-00 December 2002 1-5 Changing Configuration Options Proc edure T o change c onfigur ation o ption sett ings: 1. From the Configuration Edit/Display m enu, sele ct a set o f confi guration option s and press Enter .
1. Co nfig ura tion P roce dure s 1-6 December 200 2 9000-A2-G B31-00 Saving Configuration Options When cha nges to the c onfigura tion op tions are c omple te, use the S ave fu nction key to sav e your cha nges to ei ther the C urrent, C ustomer , or S cratch pad configur ation ar eas.
9000-A2-G B31-00 December 2002 2-1 2 Basic Configuration This chapter includes the follo wing: n Usi ng th e Easy Ins tall Fe ature on page 2-2 n Using RIP with Frame Saver SL V CSU/DSUs on page 2 -1 .
2. Basi c Confi gura tion 2-2 December 200 2 9000-A2-G B31-00 Using the Easy Install Feature The Easy Install f eature pr ovides a strai ghtforwar d installat ion me nu that req uires minimal configur.
2. Basic Configuration 9000-A2-G B31-00 December 2002 2-3 Easy I nstall Scr een Exampl e – DDS I nterf ace Easy Ins tall Screen Exampl e – DSL Inter face T o remotely access the Fram eSave r unit .
2. Basi c Confi gura tion 2-4 December 200 2 9000-A2-G B31-00 The menu struct ure and s electio ns, and the fea tures an d function s of th e FrameSav er unit, are chan ged ba sed upon th e type of servic e being u sed. T a ble 2-1, Easy Ins tall Conf igura tion Opti ons , describes the en tries on the Easy Install sc reens.
2. Basic Configuration 9000-A2-G B31-00 December 2002 2-5 DSLAM T ype (978 3) Possible Settings: Paradyne, Alcatel (Ne wBridge), PairG ain, Nokia Default Sett ing: Paradyne Ensures i nteroperability w ith non -Paradyne DSLA Ms, not j ust the Hotwire G ranDSLAM.
2. Basi c Confi gura tion 2-6 December 200 2 9000-A2-G B31-00 TS Acces s Possible Settings: None, DLCI, VPI,VCI, DLCI_on_VPI,VCI Default Sett ing: [Depends on mod el] Specifies the type of V irtual Circuit (VC) by whi c h sp ecial tro ubleshooting (TS) access is provided to service prov iders.
2. Basic Configuration 9000-A2-G B31-00 December 2002 2-7 Network 1 Line Fra ming Format (9 123, 9126, 9128) Possible Settings: D4, ESF Default Sett ing: ESF For units with a T1 network in terface, specifi es the fra ming form at for trans mitted an d received signals on the T1 network interface .
2. Basi c Confi gura tion 2-8 December 200 2 9000-A2-G B31-00 DS0 Base Rate (9123, 9126 , 9128) Possible Settings: Nx64 , Nx56 Default Sett ing: Nx64 Selects t he base rate for th e DS0s alloca ted to frame re lay on th e network interface . Nx64 – The base rate is 64 Kbps .
2. Basic Configuration 9000-A2-G B31-00 December 2002 2-9 Network 1 DSL Line Rate (9783) Possible Settings: – If DSLAM T ype is set to Paradyne , or if DSLAM T ype is set to Nokia and Network 1 DSL .
2. Basi c Confi gura tion 2-10 December 2002 9000-A2-G B31-00 Network 1 Channel (9720) Possible Settings: B1, B2 Default Sett ing: B1 Specifies the B channel u s ed for da ta transfer when the line rate is 64 kbps. Display Conditions – Network 1 Ch annel app ears only whe n Network 1 Ope rating Rate is set to 64.
2. Basic Configuration 9000-A2-G B31-00 December 2002 2-11 Using RIP with FrameSaver SL V CSU/DSU s Using the system ’s standard Rout ing Info rmation Protoco l (RIP) feat ure, rou ting informa tion is p assed to the rou ter over the mana gement P VC, so th e router can learn rout es to Fr ameSave r devic es.
2. Basi c Confi gura tion 2-12 December 2002 9000-A2-G B31-00 Entering System Information and Se tting the Syste m Clock Select S ystem In forma tion to set up or display the g eneral SN MP name f or the unit, its locatio n, and a co ntact for the unit, a s well as to set the system clock.
2. Basic Configuration 9000-A2-G B31-00 December 2002 2-13 Setting Up Auto-Conf igurati on The auto -config uration fe ature is availa ble in frame r elay m ode on al l models except th ose with D SL int erfaces.
2. Basi c Confi gura tion 2-14 December 2002 9000-A2-G B31-00 Selecting a Frame Relay Discove ry Mode When a Fram e Relay Di scovery Mode is active , the F rameSav er unit “discove rs” network DLCIs from the networ k LMI sta tus respon se mess age.
2. Basic Configuration 9000-A2-G B31-00 December 2002 2-15 NOTE: If the defau lt setting (1MPor t or 1PPor t) is n ot the setti ng requir ed for yo ur applica tion, c hange the Frame Re lay D iscove ry Mode be for e connec ting the network cable or editing discov ered opti on setting s.
2. Basi c Confi gura tion 2-16 December 2002 9000-A2-G B31-00 When a Frame Re lay Disco very Mod e is change d and saved, the Saving will cause Auto-Configuration to update and Restart. Are you sure? prompt ap pears. N o is th e defau lt for thi s prompt .
9000-A2-G B31-00 December 2002 3-1 3 Configuration Options This chapter includes the follo wing: n Conf igurin g the Over all Syste m on page 3-3 n Config uring Ph ysical Interfac es on page 3-17 n As.
3. Co nfig ura tion O pti ons 3-2 December 200 2 9000-A2-G B31-00 n T a ble 3-8, T3 Networ k Phys ical Int erface O ptions n T abl e 3-9, DDS Network Phy sical Inter face Opti ons n T abl e 3-10, IDS .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-3 Configuring the Overall System The Syste m menu option s are ex plained in the foll owing section s: n Configur ing Fra me Relay and LMI f.
3. Co nfig ura tion O pti ons 3-4 December 200 2 9000-A2-G B31-00 LMI Behavio r (continued) Net1-FR1_Follo w s_Port-1 – Bri ngs LMI down on the network int erface when LMI on Port-1 goe s down, d isabling the network interfa ce and deasserti ng its cont rol leads.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-5 LMI Beh avior (97 83 and 9788 ) Possible Settings: Independent, Net1-FR1_F ollows_Port-1, Port-1_Foll ows_Net1-FR1 , Port-1_Codependent_ w.
3. Co nfig ura tion O pti ons 3-6 December 200 2 9000-A2-G B31-00 LMI Status En quiry (N1) Possible Settings: 1, 2, 3, 4, . . . 255 Default Sett ing: 6 Configu res the LMI-defin ed N1 paramete r , which sets the numb er of status en quiry pol ling cycles that the u ser side of the LMI in itiates before a full status enquiry i s initiated.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-7 Configuring PPP Options PPP optio ns are sel ected f rom the Syst em menu ( see T abl e 3-2, PPP Opt ions ). The option appe ars only when Service T ype is PP P . Main Menu → Con figurati on → System → PPP T able 3 -2.
3. Co nfig ura tion O pti ons 3-8 December 200 2 9000-A2-G B31-00 Configuring Class of Service Definitions Select Cl ass of S ervice Def initions from the Sy stem m enu to dis play or c hange the Class o f Service definitio ns to b e used wi th latency , availa bility , and thr oughput measur ements of I P traffic on IP Enabled circu its.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-9 8. Select S ave, then sel ect Pg D n or PgUp . The Class of Service De finitions pag e reappears . In the Code Po ints As signed c olumn nex t to your selected name there is now a Y fo r Y es.
3. Co nfig ura tion O pti ons 3-10 December 2002 9000-A2-G B31-00 Code Point Defin itions Select Cl ass of Ser vice Definit ions from the System menu, then PgD n or PgU p, to display or cha nge the Code Poin t defini tions for a Class of Servi ce ID. See Conf igurin g Class of Ser vice D efin itions on page 3-8 for instructi ons.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-11 Confi guring Servi ce Level V erification Options SL V o ptions are selec ted from t he Syste m menu (see T able 3-5, Se rvice Level V erificati on Option s ). Main Menu → Con figurati on → System → Ser vice Level V e rifica tion T able 3-5.
3. Co nfig ura tion O pti ons 3-12 December 2002 9000-A2-G B31-00 SL V Delivery Ratio Possible Settings: Enable, Disable Default Sett ing: Disable Determines whether communication of Frame an d Data Delivery Ratios (FDR/DDR) between FrameSaver SL V dev ices is enabled.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-13 SL V Round T rip Latency Error Threshold (m s) Avai lable Settings: 50, 51, 5 2, . . . 10000 Default Sett ing: 10000 Specifies the number.
3. Co nfig ura tion O pti ons 3-14 December 2002 9000-A2-G B31-00 Configuring Gene ral System Options Select G eneral from the System m enu to c onfigur e the ge neral sys tem configur ation options ( see T a ble 3-6, General System O ptions ). Main Menu → Con figurati on → System → General T able 3-6.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-15 Secondary Cloc k Source Possible Settings: Net1, DSX, Internal, DBM Default Sett ing: Internal Provides a secondary cl ock source when the prima ry clock s ource fails.
3. Co nfig ura tion O pti ons 3-16 December 2002 9000-A2-G B31-00 System Alar m Relay Possible Settings: Enable, Disable Default Sett ing: Disable Specifies whether an ala rm condition for the un it will activat e the syst em alarm relay . The alarm rel ay is deacti vated when th e conditi on causing th e alarm is co rrected.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-17 Configuring Physical Interfaces Characte ristics for phys ical i nterfaces a re expl ained in t he foll owing sec tions: n Conf iguri ng .
3. Co nfig ura tion O pti ons 3-18 December 2002 9000-A2-G B31-00 T1 Network Interface FrameSav er Model s 9123, 9 126, and 91 28 hav e a T1 net work inter face.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-19 T ransmi t Ti ming Possible Settings: System, Interfa ce Default Sett ing: System Allows tran smit timing to be selected from either th e system master c lock source or from the cur rently selected inter face.
3. Co nfig ura tion O pti ons 3-20 December 2002 9000-A2-G B31-00 Network Initiated DCLB Possible Settings: Disable, V .54 _&_ANSI Default Sett ing: V .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-21 Excessive Error Rate Threshold Possible Settings: 10E-4, 10E-5, 10E-6, 1 0E-7, 10E-8, 10E-9 Default Sett ing: 10E-4 Sets the e rror rate threshold that determ ines when an EER conditio n is declared.
3. Co nfig ura tion O pti ons 3-22 December 2002 9000-A2-G B31-00 T3 Network Interface FrameSav er Model s 9520 an d 9520-IL M have a T3 net work inte rface.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-23 DDS Network Interfac e FrameSav er Model s 9623 an d 9626 hav e a DDS net work int erface.
3. Co nfig ura tion O pti ons 3-24 December 2002 9000-A2-G B31-00 Network Initiated DCLB Possible Settings: Disable, V .54 _&_ANSI Default Sett ing: V .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-25 IDSL Network Interface FrameSav er Model 9720 has an IDSL ne twork in terface. T able 3-10. IDSL Network Ph ysical Interface Options Operating R ate Possible Settings: AutoRate, 64, 128, 144 Default Sett ing: AutoRate Specifies the IDSL li ne rate.
3. Co nfig ura tion O pti ons 3-26 December 2002 9000-A2-G B31-00 SDSL Network Interface The Fram eSaver DS L 9783 C SU/DSU and R outer hav e an SDSL network interfac e.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-27 SHDSL Network Interfac e The Fram eSaver DS L 9788 C SU/DSU and R outer have a n SHDSL network interfac e.
3. Co nfig ura tion O pti ons 3-28 December 2002 9000-A2-G B31-00 Synchr onous Network Interface FrameSav er Mode ls 9 820-2M and 9820- 8M ha ve an E IA-530- A networ k interf ace. PSD Mask Possible Settings: Symmetric Default Sett ing: Symmetric Rea d-onl y .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-29 Monitor DSR Possible Settings: Enable, Disable Default Sett ing: Enable Specifies whethe r the state of the DCE Ready (D SR) circuit on th e network data port will be used to determine wh en valid data c ommunication is possible w ith the u nit.
3. Co nfig ura tion O pti ons 3-30 December 2002 9000-A2-G B31-00 HSSI Network Interface FrameSav er Model 9820-45 M has a HS SI networ k interfac e. T able 3-14 .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-31 Configuring a User Data Port (CSU/DSUs) Select P hysic al from t he Data P orts me nu to di splay o r ch ange the physic al charac teristics of the dat a port connecte d to the DTE. Main Menu → Con figurati on → Data Por ts → Ph ysic al See: n T a ble 3-15 , V .
3. Co nfig ura tion O pti ons 3-32 December 2002 9000-A2-G B31-00 Port Use ( 912 8) Possible Settings: Frame Relay , Synchronous Data Default Sett ing: Frame Re lay when the port supports fra me relay . Synchronous Da ta when t he port only sup ports synch ronous da ta.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-33 Invert T ransmit Cloc k Possible Settings: Auto, Enable, Disable Default Sett ing: Auto Determi nes whether the clock supp lied by the Fr.
3. Co nfig ura tion O pti ons 3-34 December 2002 9000-A2-G B31-00 Monitor DTR Possible Settings: Enable, Disable Default Sett ing: Enable Specifies whethe r the state of the D TE Ready (DTR) circuit on the user data port will be used to d etermine when valid data com m uni cation is possible wi th the DT E.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-35 Inve rt Transmit and R ecei ve Da ta (9 128) Possible Settings: Enable, Disable Default Sett ing: Disable Specifies w hether tran smitted and rece ived data for the synch ronous data port is logi cally inver ted before b eing transm itted or afte r being receive d from the netwo rk.
3. Co nfig ura tion O pti ons 3-36 December 2002 9000-A2-G B31-00 EIA-530-A/X.21/V .35 Data Port Physical Interface FrameSav er Model s 9788, 9 820-2M, a nd 9820 -8M have an EIA- 530-A da ta port that can b e adapte d for use as an X. 21 or V .35 data port.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-37 T ransmi t Clock Sou r ce Possible Settings: Internal, External Default Sett ing: Internal Determi nes whe ther the DTE’ s transmitt ed data is clock ed into the F rameSaver unit by its internal t ransmit clock or b y the external c lock provided by the DTE.
3. Co nfig ura tion O pti ons 3-38 December 2002 9000-A2-G B31-00 HSSI Data Port Physical Interface FrameSav er Model 95 20 has two HSSI da ta ports, and Mo del 9820-4 5M has one.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-39 Port T ype (9520 ) Possible Settings: HSSI, V .35 Default Sett ing: HSSI Specifies the port t ype of the dat a port. V. 3 5 – The port is configure d as a V .35-co mpatible DCE. A V .35-com patible D TE may b e connect ed to the port u s ing a DB25-to-M S34 ad apter .
3. Co nfig ura tion O pti ons 3-40 December 2002 9000-A2-G B31-00 Monitor DTR Possible Settings: Enable, Disable Default Sett ing: Enable Specifies whethe r the state of the D TE Ready (DTR) circuit on the user data port will be used to d etermine when valid data com m uni cation is possible wi th the DT E.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-41 Configuring the T3 User Port (9520-ILM) Select P hysic al to dis play or change th e phys ical char acteri stics of the us er data port con nected to the DTE ( see T able 3-18, T3 Us er Por t Physic al Inter face Options ).
3. Co nfig ura tion O pti ons 3-42 December 2002 9000-A2-G B31-00 Configuring the DSX-1 Interface (9126, 9128) Select D SX-1 to d isplay or change t he phy sical con figurati on options when a DSX- 1 int erfac e is insta lled (se e T able 3-1 9, DSX-1 Physical Interfac e Options ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-43 Line Equaliz ation Possible Settings: 0 –133, 133 – 266, 266 – 399, 399 – 533 , 533 – 655 Default Sett ing: 0– 1 3 3 Permits a standard DSX signa l to be delivere d over a distanc e of up to 655 fe et.
3. Co nfig ura tion O pti ons 3-44 December 2002 9000-A2-G B31-00 Configuring the ISDN DBM Interface (9126, 9128, 9626) For mo dels with ISDN ba ckup ca pabili ty , sele ct Phy sical from the I SDN menu to configur e the phy sical cha racter istics for DBM I nterface .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-45 Refer to the T abl e 3-21 wh en config uring a P RI DBM. T abl e 3-21. I SDN PRI DBM Physi cal Interface O p tions (9 128) (1 of 3) Interface Status Possible Settings: Enable, Disable Default Sett ing: Disable Determi nes whethe r the ISDN inter face is a vailable for use.
3. Co nfig ura tion O pti ons 3-46 December 2002 9000-A2-G B31-00 Line Build Out (LBO ) Possible Settings: 0.0, –7. 5, –15, –22. 5 Default Sett ing: 0.0 Specifies the line build out for the signa l transmitte d to the ISDN. 0.0, –7.5, –15, –22.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-47 Excessive Error Rate Threshold Possible Settings: 10E-4, 10E-5, 10E-6, 1 0E-7, 10E-8, 10E-9 Default Sett ing: 10E-4 Sets the e rror rate threshold that determ ines when an EER conditio n is declared.
3. Co nfig ura tion O pti ons 3-48 December 2002 9000-A2-G B31-00 Setting Up ISDN Link Pr ofiles (9126, 9128, 9626) For mo dels with ISDN ba ckup ca pabili ty , sele ct ISDN Link Profiles f rom the IS DN menu t o set up the ISD N Link P rofiles ( see T ab le 3-22, ISDN L ink Pr ofile Optio ns ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-49 Outbound Ph one Number Possible Settings: 0 – 9 , * , # , space, _ , – , (, o r ) Default Setting: none Specifies the prim ary phone numbe r to call (the ISDN Called Party Ident ifier) for the Link Profile.
3. Co nfig ura tion O pti ons 3-50 December 2002 9000-A2-G B31-00 Assigning T ime Slots/Cross Connec tions The T ime Sl ot Assi gnment/C ross Conne ct featu re provid es an easy met hod of assign ing tim e slots for frame r elay dat a and cre ating cr oss-conn ection s to the synchron ous da ta interface .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-51 Assigning T ime Slots to the Network Interfac e Befo re assign ing netw ork time slot s for use b y frame re lay traf fic, co nfigur e th.
3. Co nfig ura tion O pti ons 3-52 December 2002 9000-A2-G B31-00 For ea sy move ment be tween s creens, select the DSX Assign function key to go directly to t he DSX-1 to Network A ssignments screen. Time Slot Assignmen t Rule: V alid network time slo ts ar e either Available or contain a Fram e Relay Link 1 assign ment.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-53 DSX-1 to Network Time Sl ot Assignmen t Screen Example (Page 1) Page 2 of 2 is fo r defini ng signa ling ass ignments and trun k condit ioning for eac h DSX-1 inte rface tim e slot.
3. Co nfig ura tion O pti ons 3-54 December 2002 9000-A2-G B31-00 Proc edure 1. Follow this menu sele ction se quence : Config uration → Time Slot As signment → DSX -to-Netwo rk Assi gnments The DSX- 1 to Ne twor k Assignm e nts sc reen app ears.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-55 Only th ose DSX-1- to-Networ k ass ignments from page 1 are displayed on this page, fro m left to r ight and to p to bot tom in asc ending o rder , by network and t ime slot.
3. Co nfig ura tion O pti ons 3-56 December 2002 9000-A2-G B31-00 E&M-idle The signa ling bits transmit ted to the cross-c onnected T1 interfa ce during a CG A represent the idle state for an E&M int erface (ABCD = 0000 ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-57 PLAR3idl e The sig naling bit s transmitted to the c ross-connected T1 interfa ce during a CG A represent the idle state for a PLAR D3 i nterface (ABCD = 0000).
3. Co nfig ura tion O pti ons 3-58 December 2002 9000-A2-G B31-00 Assigning a Synchr onous Data Port to Networ k or DSX-1 T i me Slots For a Fram eSav er SL V un it with two data por ts, anoth er assi gnmen t screen is availab le.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-59 For ea sy move ment be tween s creens, select the F rA ssign fu nction k ey to go directly to the Fr ame Relay Network Assign ments sc reen or the DSX Assign function key to go to t he DSX-1 to Network Assignme nts scree n.
3. Co nfig ura tion O pti ons 3-60 December 2002 9000-A2-G B31-00 Configuring Frame Relay for an Interf ace Select F rame Re lay from the in terface’s menu to displa y or ch ange th e Frame Relay opt ions for an indiv idual in terface (see T able 3-25, Int erface P PP Opti ons ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-61 T raffic Policin g Possible Settings: Enable, Disable Default Sett ing: Disable Determines whether or not CIR (Committed Inf ormation Rate) and EIR (Excess Informatio n Rate) will b e enforced by the unit on frames bein g sent on network frame relay links.
3. Co nfig ura tion O pti ons 3-62 December 2002 9000-A2-G B31-00 LMI Clearing Event (N3) Possible Settings: 1, 2, 3, 4, 5, 6 , 7, 8, 9, 1 0 Default Sett ing: 1 Configu res the LMI-define d N3 parameter , which se ts the number of error-free me ssages that must be receive d before c learing an erro r event.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-63 Configuring PPP for an Interface Select P PP f rom the i nterface ’s menu to dis play or change the PP P options for an indivi dual inter face (s ee T a ble 3-25 , Interfac e PPP Opti ons ).
3. Co nfig ura tion O pti ons 3-64 December 2002 9000-A2-G B31-00 Manually Configuring DLCI Records The Auto -Configu ration fea ture a utomatic ally co nfigures DLCI Recor ds and th eir PVC Conne ctions. D LCI Reco rds can also be crea ted man ually ( see T able 3-26, DLCI Record Opt ions ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-65 DLCI T ype Possible Settings: Standard, Multiplexed , IP Enabled Default Sett ing: For user d ata port DLCIs: Stan dard For network int erface DLCIs: Mu ltiplexed Specifies whether the DLCI is sta ndard or mult iplexed.
3. Co nfig ura tion O pti ons 3-66 December 2002 9000-A2-G B31-00 Committed Burst Siz e Bc (Bit s) Possible Settings: CIR, Other Default Sett ing: CIR Specifies whether the DLCI’ s committed burs t size will fol low the CIR, or whether it will be entered in dependently .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-67 DLCI Priority Possible Settings: Low, M e dium, High Default Sett ing: High Specifies the relative p riority for data re ceived on t he DLCI fro m an attached device (also known as qua lity of servic e ).
3. Co nfig ura tion O pti ons 3-68 December 2002 9000-A2-G B31-00 Configuring Cir cuit Recor ds for the Network Int erface For Model s 9783 and 9788, circui t records can be c reated or m odifie d and PVC s can b e created based on existin g DLCIs using the Networ k Circ uit Records screen .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-69 DLCI T ype Possible Settings: Standard, Multiplexed, IP Enabled Default Sett ing: Multiplexed Specifies whether the DLC I is standard, mu ltiplexed, o r IP Enable d.
3. Co nfig ura tion O pti ons 3-70 December 2002 9000-A2-G B31-00 Bc Possible Settings: – 9783: 0 – 232000 0 – 9788: 0 – 231200 0 Default Sett ing: 0 Allows you to di splay or change the DLCI’s committed burst siz e. Displa y C onditio ns – This op tion appe ars only when Com m itted Burs t Size is set to Other .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-71 Configuring A TM for the Network Inte rface For Model s 9783 and 9788, select A TM fr om the Netwo rk menu to displ ay or change A TM op tion s ettings (s ee T able 3-28, Network A TM Options ).
3. Co nfig ura tion O pti ons 3-72 December 2002 9000-A2-G B31-00 Configuring PVC Connections The Auto -Configu ration fea ture a utomatic ally co nfigures PVC C onnection s and their DLC I Records . PVC Conn ectio ns can al so be cr eated man ually ( see T a ble 3-29 , PVC Conne ction Options ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-73 Source EDLCI Possible Settings: 0 – 62 Default Sett ing: Initiall y blank; no defa ult. Specifies the source Embedd ed Data Li nk Connection Ide ntifier (EDLCI) for a fr ame relay interface when a multip lexed DLCI r ecord is s elected as one end of a conne ction.
3. Co nfig ura tion O pti ons 3-74 December 2002 9000-A2-G B31-00 Primary Dest ination EDL CI Possible Settings: 0 – 62 Default Sett ing: Initiall y blank; no defa ult.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-75 Alternate De stination EDLCI Possible Settings: 0 – 62 Default Sett ing: Initiall y blank; no defa ult.
3. Co nfig ura tion O pti ons 3-76 December 2002 9000-A2-G B31-00 Configuring the IP Path List Select I P Path Li st (Stati c) from th e Configur ation Edi t/Displa y menu to display or change th e list of static path I P address es expli citly defi ned in the unit.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-77 Setting Up Management and Communication Options Managemen t and Commun ications o ptions are expl ained i n the f ollowing section s: n C.
3. Co nfig ura tion O pti ons 3-78 December 2002 9000-A2-G B31-00 Configuring Node IP Information Select N ode IP to displa y , add, or chang e the i nformati on neces sary to su pport general IP commu nication s for the n ode (see T a ble 3-31 , Node IP Opti ons ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-79 Node Subnet M ask Possible Settings: 000.000.000.0 00 – 255. 255.255.255, Cl ear Default Sett ing: 000.000.0 00.000 Specifies the subnet ma sk needed to access the node. Since the subnet m ask is not bound to a particular port, it can be used f or remote acces s via a man agement PVC.
3. Co nfig ura tion O pti ons 3-80 December 2002 9000-A2-G B31-00 Manageme nt MTU Size Possible Settings: 90 – 1500 Default Sett ing: 1500 Specifies the Maximum T ransmissi on Unit (MTU) for man agement traf fic transmit ted on standard DLCIs, EDLCIs, IP tunnels, and Payload M anageme nt circuits.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-81 TS Managem ent SNMP V alidation Possible Settings: Enable, Disable Default Sett ing: Disable Specifies whether vali dation of c ommunity stri ngs and I P addresses i s perform ed for this managem ent link.
3. Co nfig ura tion O pti ons 3-82 December 2002 9000-A2-G B31-00 Confi guring Manageme nt PVCs Select M anagem ent PVCs to defi ne inband manage ment link s by add ing or changing Manag ement P VCs (see T able 3-32, Man agement PVC Opt ions ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-83 Payload Managed Possible Settings: Enable, Disable Default Sett ing: Disable Specifies whethe r the PVC is p ayload managed. Displa y Conditio ns – This is a rea d-only fie ld set to Enabled if the PVC is IP Enab led.
3. Co nfig ura tion O pti ons 3-84 December 2002 9000-A2-G B31-00 Primary Li nk Possible Settings: Net1-FR1, Port- n , Rtr-S0, ISDN Link Na m e , Clea r Default Sett ing: Initiall y blank; no defa ult. Spec ifi es the fram e re lay int erf ace t o us e for t his manag emen t PVC .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-85 Primary EDLCI Possible Settings: 0 – 62 Default Sett ing: Initiall y blank; no defa ult. Specifies the EDLCI numb er used for a man agement PVC when a multiplexed DLCI is selecte d. EDLCIs ident ify individ ual connectio ns within mult iplexed DLC Is that are unique to those DLCIs.
3. Co nfig ura tion O pti ons 3-86 December 2002 9000-A2-G B31-00 Alternate Link Possible Settings: Net1-FR1, Port- n , ISDN Link Name , Cle ar Default Sett ing: Initiall y blank; no defa ult. Specifies the frame relay in terface to use for this m anageme nt PVC as the al ternate link.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-87 Encapsulatio n Possible Settings: Routed Default Sett ing: Routed This read -only field spe cifies that the IP encapsula tion used is RFC 1490/R FC 2427 routed N etwork Leve l Protocol IDen tifier (NL PID) enca psulatio n, and not SubNe twork Access Proto c ol (SNAP) e ncapsulati on.
3. Co nfig ura tion O pti ons 3-88 December 2002 9000-A2-G B31-00 Configuring Ge neral SNMP Manage ment Select G eneral SNMP Managemen t to add, chang e, or del ete the info rmation needed to a llow t.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-89 Configuring T elnet and/or F TP Session Support T e lnet and F TP options c ontrol w hether a T elnet or F TP ( File Transport Pr otocol) sessi on is all owed thro ugh an inte rconnec ted IP net work and the acces s secur ity applica ble to the sess ion.
3. Co nfig ura tion O pti ons 3-90 December 2002 9000-A2-G B31-00 T able 3- 34. T elnet an d F TP Se ssion Op tions (1 of 2) T elnet Session Possible Settings: Enable, Disable Default Sett ing: Enable Specifies whether the Fra meSaver u nit will respond t o a session request fr om a T el net client o n an interconnec ted IP network.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-91 Inac tivi ty Time out Possible Settings: Enable, Disable Default Sett ing: Enable Determi nes whether a T elnet sessi on is disco nnected after a speci fied period of ke yboard inact ivity .
3. Co nfig ura tion O pti ons 3-92 December 2002 9000-A2-G B31-00 Configuri ng SNMP NMS Securi ty Select S NMP NM S Securit y from th e Manag ement a nd Communi catio n menu to display , ad d, or ch ange S NMP secu rity co nfigurat ion opt ions for the Fra meSaver unit to se t up trap managers (see T able 3-35, S NMP NMS S ecurit y Options ).
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-93 Configuring SNMP T r aps and T r ap Dial-Out Select S NMP T raps fr om the Manag ement and Communic ation me nu to configu re SNMP traps and di al-out wh en a trap is gener ated (se e T ab le 3-36, S NMP Traps and Tr ap Dial -Out Opti ons ).
3. Co nfig ura tion O pti ons 3-94 December 2002 9000-A2-G B31-00 NMS n IP Address Possible Settings: 001.000.000.0 00 – 223. 255.255.255, Cl ear Default Sett ing: Clear (000.000.0 00.000) Specifies the IP add ress that identi fies the SNM P manage r(s) to receive SNM P traps.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-95 Enterprise Spec ific Tr aps Possible Settings: Enable, Disable Default Sett ing: Enable Determi nes whether trap messages for enterp riseSpecific eve nts are sent to the curren tly configure d trap manager(s ).
3. Co nfig ura tion O pti ons 3-96 December 2002 9000-A2-G B31-00 DLCI T raps on Interf aces – In terface Selectio n Field Possible Settings: Network , Ports, DBM, All, None Default Sett ing: All Specifies which interface s will generat e linkUp and link D own trap messages for individual DLCIs.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-97 T rap Dial- Out Possible Settings: Enable, Disable Default Sett ing: Disable Controls whe ther SNMP trap me ssages initiate a call automati cally .
3. Co nfig ura tion O pti ons 3-98 December 2002 9000-A2-G B31-00 Alternate Dial-Out Directory Possible Settings: None, 1 – 5 Default Sett ing: None Specifies whether an in complete call (bus y , or no an swer , etc.) resulti ng from an attem pt to send a n SNMP trap messa ge is retried usi ng an alternat e telepho ne number .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-99 Confi guring Ethe rnet Ma nagemen t Select Ethernet Manage ment from the Ma nagement a nd Comm unicati on menu, o r Ethernet Manage ment Opti ons Scree n from the Easy Install screen, to confi gure the Ether net port ( see T a ble 3-37, Eth ernet Man agemen t Options ).
3. Co nfig ura tion O pti ons 3-100 December 2002 9000-A2-G B31-00 Default Gateway Add ress Possible Settings: 001.000.000.0 00 – 223. 255.255.255, Cl ear Default Sett ing: Clear (000.000.0 00.000) Specifies the IP add ress for the port’ s default ga teway .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-101 Configuring the Commu n ication Port Select C ommuni cation Port from the Man agement and Commu nication menu to display or cha nge the communic ation port con figurati on options (see T able 3-38, Commun ication Port Op tions ).
3. Co nfig ura tion O pti ons 3-102 December 2002 9000-A2-G B31-00 Parity Possible Settings: None, Even, Odd Default Sett ing: None Provides a method of checki ng the accuracy of binary n umbers for th e COM port. A pari ty bit is ad ded to the data to make the “1” bits of ea ch character ad d up to either an odd or even num ber .
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-103 Port Acces s Level Possible Settings: Level-1, Level- 2, Level-3 Default Sett ing: Level-1 Specifies level of user access privil ege for an asynchronous terminal connec ted to the COM port.
3. Co nfig ura tion O pti ons 3-104 December 2002 9000-A2-G B31-00 IP Address Possible Settings: 001.000.000.0 00 – 223. 255.255.255, Cl ear Default Sett ing: Clear (000.000.0 00.000) Specifies a unique IP address for accessing the un it via the COM po rt.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-105 Configuri ng the Modem Port Select Mo dem Port fro m the Manag ement and Comm unica tion menu to con figure the modem port (s ee T ab le 3-39, M odem Por t Option s ).
3. Co nfig ura tion O pti ons 3-106 December 2002 9000-A2-G B31-00 Login Required Possible Settings: Enable, Disable Default Sett ing: Disable Determines whether a user ID and pa ssword (referred to as the login) is required in order to log on to the asynchro nous termina l connec ted to the modem port.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-107 Disconnect T ime (Minutes) Possible Settings: 1 – 60 Default Sett ing: 10 Determi nes the amount of lapsed time before disconne cting a user session in minutes. Displa y C onditio ns – This op tion only appears when : Port Use is set to T e rminal.
3. Co nfig ura tion O pti ons 3-108 December 2002 9000-A2-G B31-00 Alternate I P Address Possible Settings: 001.000.000.0 00 – 223. 255.255.255, Cl ear Default Sett ing: Clear (000.000.0 00.000) Specifies the alternate IP a ddress for the m odem port.
3. Conf iguration Op tions 9000-A2-G B31-00 December 2002 3-109 Configuring the Criteria for Automatic Backup For units with a n ISDN DBM, follow thi s menu se lecti on sequen ce to specify whether a .
3. Co nfig ura tion O pti ons 3-110 December 2002 9000-A2-G B31-00 When Auto Backup Al lowe d Possible Settings: Always, Restr ict Default Sett ing: Always Determines when backup for the access unit i s allowed to occ ur . Always – No res trictions on backup.
9000-A2-G B31-00 December 2002 4-1 4 Featur e-Specific Confi guration This chapter includes the follo wing: n Setting Up an Ex ternal M odem on pa ge 4-2 n Setting Up an Inte rnal Mod em on pa ge 4-3 .
4. Feature -Specific Conf iguration 4-2 December 200 2 9000-A2-G B31-00 Setting Up an Exte rnal Modem A standa rd E IA-232-D c rossover cable can be used to conne ct the CO M port to an externa l modem. T he exter nal modem must be c onfigured so it is compa tible w ith the FrameS aver un it.
4. Fe atu re-Sp ecif ic Co nfi gura tion 9000-A2-G B31-00 December 2002 4-3 Setting Up an I nternal Modem Models 9 126, 91 28, 9520, 95 20-ILM , 9626, and 9820- 45M have an inte rnal modem for dial-in a ccess to th e menu -driven u ser inte rface, as well as dial-out capabil ity w hen an S NMP trap is generated .
4. Feature -Specific Conf iguration 4-4 December 200 2 9000-A2-G B31-00 4. S ave t he phone number (s) . Setting Up to Use the Modem PassT hru Feature Dial-in access to the r outer is possib le via th e Modem PassTh ru featu re, also known as the Rout er Assist feature.
4. Fe atu re-Sp ecif ic Co nfi gura tion 9000-A2-G B31-00 December 2002 4-5 Setting Up Dial Backup When con figur ing un its with I SDN backu p capabi lity , t he followi ng gui delines apply: n Central site config uration gui delin es: — Set up the ISDN DB M physic al interfa ce.
4. Feature -Specific Conf iguration 4-6 December 200 2 9000-A2-G B31-00 Setting Up Au tomatic B ackup Config urat ion The Auto matic Ba ckup Con figur ation featu re is us ed to a utomatic ally cr eat.
4. Fe atu re-Sp ecif ic Co nfi gura tion 9000-A2-G B31-00 December 2002 4-7 When the A utomat ic Back up Con figurati on setting is chan ged, the followin g prompts appear . N o i s the defa ult for th ese prom pts. When the . . . The following p rompt appears .
4. Feature -Specific Conf iguration 4-8 December 200 2 9000-A2-G B31-00 NOTE: When DLCIs , PVC co nnections , and m anagement PVCs for the first I SDN Link Profi le ha ve been c onfigu red manua lly , i t is reco mmende d that spec ific discover ed DLCIs, P VC co nnection s, and man agemen t PVCs be delete d manually via the Configu ration m enus.
4. Fe atu re-Sp ecif ic Co nfi gura tion 9000-A2-G B31-00 December 2002 4-9 Modifying ISDN Link Profiles Once an ISDN Link Profil e is conf igured u sing the Automatic Backu p Config uration feature, p hone nu mbers and Ca llin g IDs need to be en tered.
4. Feature -Specific Conf iguration 4-10 December 2002 9000-A2-G B31-00 Restrictin g Automatic B ackup an d Configur ing Backup Timers Y ou can speci fy when auto bac kup is al lowed to occ ur .
4. Fe atu re-Sp ecif ic Co nfi gura tion 9000-A2-G B31-00 December 2002 4-11 Configuring the DBM Interface to Send SNMP T raps The ISDN DBM inter face can be sp ecified a s an inte rface tha t monit o.
4. Feature -Specific Conf iguration 4-12 December 2002 9000-A2-G B31-00 PVC Backup Over the Ne twork Interface Genera lly , b ackup can b e per formed on the netw ork inte rface’s frame relay l ink using a b ackup P VC, as well o n an ISDN l ink; the u nit doe s not hav e to have t he ISDN DBM fe ature.
4. Fe atu re-Sp ecif ic Co nfi gura tion 9000-A2-G B31-00 December 2002 4-13.
4. Feature -Specific Conf iguration 4-14 December 2002 9000-A2-G B31-00.
9000-A2-G B31-00 December 2002 IN-1 Index Numerics 1MPort mode auto -co nfi gur ati on, 2- 14 1Por t mode auto -co nfi gur ati on, 2- 14 1PPort mode auto -co nfi gur ati on, 2- 14 2MPor ts mod e auto .
Index IN-2 December 20 02 9000-A2-GB31 -00 changi ng auto -co nfi gur ati on, 4- 7 automat ic backup con figurat ion, 4- 7 configu ration options, 1-5 changi ng operating m ode, 4-12 Chann el, 2-10, 3.
Index 9000-A2-G B31-00 December 2002 IN-3 Desti nation, 3- 94 Default IP, 3-79 DLCI, 3- 73–3-74 EDLCI, 3 -74–3-75 Link , 3- 73– 3- 74 dial ba ckup, 4-5 Dial-In Access , 3-105 Dial-Out Dela y Tim.
Index IN-4 December 20 02 9000-A2-GB31 -00 Excess ive Error Rate Threshold, 3-21 External Transmi t Clock, 3 -33 External Tran smit Clock, 3-37, 3-39 F Frame Relay assi gnin g time s lot s, 3-5 1 conf.
Index 9000-A2-G B31-00 December 2002 IN-5 Link Create a Dedicated Net work Manag ement, 2- 6 Desti nation, 3- 73–3-74 maximu m ISDN rate, 3-49 Name, 3-48 Protocol, 3-105, 3-107 setting up ISDN profi.
Index IN-6 December 20 02 9000-A2-GB31 -00 NMS IP Address, 3-92, 3-94 IP Validation , 3-92 SNMP secu rity opti ons, 3-92 Node IP Address, 2-5, 3-78 IP config uration optio n table s, 3-78 Subnet M a s.
Index 9000-A2-G B31-00 December 2002 IN-7 Protocol address resoluti on, 3-100 encaps ulations, 2 -10, 3-71 Link, 3- 105, 3-107 LMI, 3 -60 Point-to-Po int (PPP), 3-105, 3-107 Routin g Informat ion (RIP.
Index IN-8 December 20 02 9000-A2-GB31 -00 spectra l density (PSD ), 3-28 SPID, 3-44 Stan dard DLCI Type, 3- 69 Status Enquiry LMI, 3 -6, 3-62 Stop Bits, 3-1 02 Subnet Mas k, 3-83, 3-99, 3-104, 3-10 7.
Index 9000-A2-G B31-00 December 2002 IN-9 W warmStart eve nts Gener al Tr aps, 3 -94 warrant y, A website access to d ocumen tati on, vi glos sary , v X X.
Index IN-1 0 Decembe r 2002 9000-A2-GB31-00.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Paradyne 9123 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Paradyne 9123 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Paradyne 9123, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Paradyne 9123 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Paradyne 9123, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Paradyne 9123.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Paradyne 9123. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Paradyne 9123 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
