Manuale d’uso / di manutenzione del prodotto 2000 del fabbricante Enterasys
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Smar tSwitc h 2000 User’ s Guide.
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iii Notice Enterasys Networ ks reserves the righ t to make changes in specifications an d other informatio n contained in this docum ent without prior notice. Th e reader should in a ll cases consult Enterasys Networks to determine whether a ny such changes have been made.
iv Restricted Rights Notice (Applicable to licenses to the United States Go vernment only .) 1. Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) o f the Rights in T echnical Data and Computer Softwar e clause at DF ARS 252.
v Contents Chapter 1 Intr oduction Using the SmartSwitch 20 00 User ’s Guide ............. ........... ................. ........... ........... 1-5 Related Manuals........................ ........... ................. ............ ................ .
Contents vi Configuring Ethernet Por ts on Second Gener ation Devices .................. 2-35 Operational Mode Fields ............ ................. ................. ........... ............. 2-37 Setting the Desir ed Operation al Mode ..............
vii Contents Disabling a Basic Alarm .......... ................. ........... ................. ................. ........... ..... 3-8 V iewing the Basic Alarm Log .................. ................. ................ ............ ................ 3-9 Advanced Alarm Configuration .
Contents viii Chapter 6 FDDI Applications Concentrator Con figuration ...................... ................. ................. ........... ................. .... 6-2 Connection Policy W i n dow ...... ...... ...... ........... ...... ..... ...... ..
1-1 Chapter 1 Intr oduction How to use this guide; related guides; so ftw are conv entions ; getting help W el come to the SmartSwitch 20 00 User ’ s Guide. W e have designed this guide to serve as a r efer ence for using the Sm artSwitch 2000 family of devices.
Introductio n 1-2 high speed connection to a local server , an d one additional slo t for a High Speed Interface M odule (HSIM) which can pr ovide FDDI, A TM, Gigabit Ethernet, or W AN co nnectivity depending on the type of HSIM installed.
1-3 Introductio n •T h e 2H28-08 R SmartSw itch, which ha s a to tal of eigh t ports consisti ng of six built-in fr ont panel 100BaseFX m ultimode fiber SC ports and two fr ont panel slots for optional Fast Ethernet Port Interf ace Modules (FEPIMs) to support an uplink to 100 Mbps Ethernet backbones or a high speed co nnection to a local server .
Introductio n 1-4 standar d, which defines how end users that rely on existing data commu nicatio ns tec hnolo gy and proto cols can opera te over a n A TM n etwor k without pena lty .
Using the Smar tSwit ch 200 0 User’ s Guide 1-5 Introductio n The latest SmartSwi tches feature VHSIM sl ots, w hich can accept any of the previously detailed HSIMs or the VHSIM-G6 Gigabit Ethernet .
Introductio n 1-6 Related Ma nuals Chapter 7, A TM Configuration , describes how to configure Perm anent V irtual Circuits (PVCs) for the A TM interface(s) in the A TM Connections window , which will be available if you have an HSIM-A6 DP module insta ll ed in your device.
Software Conventions 1-7 Introductio n Figure 1 -1. Mouse Buttons For man y mouse o perations, t his docu ment assu mes th at the left (prim ary) m ouse button is to be used, and references to activating a menu or button will not include instructions abo ut w hich mouse butto n to use.
Introductio n 1-8 Soft war e Co nv ention s Common SmartSwitch 2000 Window Fields Similar descriptive information is displayed in boxe s at the top of most device-specific windows in NetSight Element Manager, a s illustrated in Figure 1-2 , below . Figure 1-2.
Getting H elp 1-9 Introductio n Informational fields describing the boar ds and/ or ports being modeled are a lso displayed in mo st wi ndows: Board Number Displays the number of the bo ard. The SmartSwitch 2000 will always be Boar d 1. P ort Number Displays the number of the monitor ed port.
Introductio n 1-10 Getting Help the use of the wi ndows and their associated command and m enu options. Note that if a Help but ton is grayed out, on -line help has n ot yet been implem ented for the associated window .
Getting H elp 1-11 Introductio n F TP: ftp.ctr on.com ( 134.141 .197.25) Login anonymous Password your e-mail address By BBS: (603) 33 5-3358 Modem Setting 8N1: 8 data bits, 1 stop bit, No parity Send.
Introductio n 1-12 Getting Help.
2-1 Chapter 2 The Smar tSwitch 2000 Chassis Vie w Informatio n displayed in the Cha ssis V iew window; the Cha ssis Manag er wi ndow; Hub man agemen t functions The SmartSwitch 20 00 Chassis V iew window displays a color -coded graphi c repre sentation of y our SmartSw itch 2000.
The Smar tSw itch 2000 Chassis V iew 2-2 Viewing C hassis Informa tion Vie wing Chassi s Inf ormation The SmartSw itch 20 00 Chassi s V iew window ( Figure 2-1 ) provides graph ic repr esentations of .
Vie win g Chas sis I nf ormatio n 2-3 The Smar tSw itch 2000 Chassis V iew • Magenta indicates th at the SmartSwit ch 2000 is i n a tempora ry stand -by mode while it responds to a ph ysical change in the hub; note that bo ard an d port menus ar e inactive during this stand-by state.
The Smar tSw itch 2000 Chassis V iew 2-4 Viewing C hassis Informa tion Menu Structure By clicking on various ar eas of the SmartSwi tch 2000 Chassis V iew display , you can access menus with device-, module-, and port-level option s, as well as utility applicatio ns w hich apply to th e device.
Vie win g Chas sis I nf ormatio n 2-5 The Smar tSw itch 2000 Chassis V iew The D evice Menu From the Device Menu at the Chassis V iew window m enu bar , you can access the followi ng s election s: • D evice T ype displays a description of the device being modeled.
The Smar tSw itch 2000 Chassis V iew 2-6 Viewing C hassis Informa tion • B roadcast Suppression allows you to set a th reshold on the num ber of broa dcast packets issued from each port on the SmartSwitch 2000 whe n it is operating in traditional switch (bridge) mode.
Vie win g Chas sis I nf ormatio n 2-7 The Smar tSw itch 2000 Chassis V iew • I/F Sp ee d will display the port’s bandw idth: 10M (megabits) fo r Etherne t; 100M for Fast E thernet; 15 5.5M for A TM; and 1G fo r Gigabit Et hernet. • I/F T yp e will display th e port type of ea ch port on yo ur SmartSw itch 2000, e.
The Smar tSw itch 2000 Chassis V iew 2-8 Viewing C hassis Informa tion The U tilities Menu The Utilities menu provides access to the MIB T ools utilit y , which provides direct access to the Sma rtSwitch 2000’s MIB inf ormation, and to the RMON utility , a remote mon itoring feature that is supported by many intelligent devices.
Vie win g Chas sis I nf ormatio n 2-9 The Smar tSw itch 2000 Chassis V iew • Spanning T ree allows yo u to s et bridge pa rameters when it is operati ng usi ng the Spanning T ree Algorithm (ST A) .
The Smar tSw itch 2000 Chassis V iew 2-10 Viewing C hassis Informa tion • Alarm Configurati on brings up windo ws th at allow you to configure alarms and events for each ava ilable interface; see Chapter 3, Alarm Configu ration for details. • Statistics launches th e highest level of statistics curren tly available for the selected port.
Vie win g Chas sis I nf ormatio n 2-11 The Smar tSw itch 2000 Chassis V iew If you have selec ted the B ri dge status mode, a port is con sidered: • FWD (Forwarding) if the port is on-line and forwarding packe ts across the SmartSwitch 20 00 from one network segment to ano ther .
The Smar tSw itch 2000 Chassis V iew 2-12 Viewing C hassis Informa tion E rr ors If you choose the E rrors m ode, the interface boxes will display the percentage of the total number of valid packets processed by each po rt during the last polling interval that wer e err or packets.
Vie win g Chas sis I nf ormatio n 2-13 The Smar tSw itch 2000 Chassis V iew If you ha ve s elec ted t he Admin/Link status mode, a port is considered: • ON if the port is enabled an d has a valid link. • OFF if it has not been enabled or if it has been disabled thr ough management acti on.
The Smar tSw itch 2000 Chassis V iew 2-14 Viewing C hassis Informa tion P ort Assignment If you ch oose Port A ssignment , each port’s stat us box will dis p la y a letter which designates its current repeater channel as signm ent (A-H).
Vie win g Chas sis I nf ormatio n 2-15 The Smar tSw itch 2000 Chassis V iew P ort Status Color Codes The Port Status display options —Bridge, Admin , and Operator— incorporate color coding schemes. For the Admin and Operator Status display op tions, green = ON, red = OFF, and blue = N/A (not available).
The Smar tSw itch 2000 Chassis V iew 2-16 Viewing C hassis Informa tion Figure 2-3. Th e Chassis Ma nager W indow Viewing Hardware T ypes In addition to the graph ical displays described above, menu options available at the device and module levels pr ovide specific information about the physical charac teristi cs of the SmartS witch 2 000.
Vie win g Chas sis I nf ormatio n 2-17 The Smar tSw itch 2000 Chassis V iew Module T y pe From the Module menu on the S martSwi tch 2000 Chassis V iew window , you can view a description of the SmartSwitch 2000. 1. Click on the Sma r tSwitch 2 000 mod ule in dex.
The Smar tSw itch 2000 Chassis V iew 2-18 Viewing C hassis Informa tion Interface De scription Choosing the Description option fr om the Po rt menu brings up a wi ndow th at describes the selected interface.
Vie win g Chas sis I nf ormatio n 2-19 The Smar tSw itch 2000 Chassis V iew The I/F Summary window pr ovides a variety of descriptive info rmation about each interface on your device, as well as statistics which display each interface’s performance.
The Smar tSw itch 2000 Chassis V iew 2-20 Viewing C hassis Informa tion After you select a new display mode, the statistics (and graphs, where applicable) will refr esh to r eflect the curr ent choice, as described below .
Vie win g Chas sis I nf ormatio n 2-21 The Smar tSw itch 2000 Chassis V iew Out Octets The num ber of bytes transmitted by this interface, expressed as a per centage of the theor etical maximum load.
The Smar tSw itch 2000 Chassis V iew 2-22 Viewing C hassis Informa tion Three informational field s appear in the upper portion of the wind ow: Description Displays the interface description for the curre ntly selected interface. Address Displays the MAC (physical) addr ess of the selected interface.
Vie win g Chas sis I nf ormatio n 2-23 The Smar tSw itch 2000 Chassis V iew Unknown P rotocol (Received only ) Displays the number of packets received which were discar ded because they were created under an unknown or unsupported pro tocol. P ackets Received (R eceiv ed only ) Displays the number of packets r eceived by the selected interfa ce.
The Smar tSw itch 2000 Chassis V iew 2-24 Using Device Find Sou rce Addre ss Using De vice F ind Sour ce Address When you select the Device Find Source Address option, the device’s 802.1d Filtering database is sear ched for the specified MAC address.
Using Device Fin d Source A ddress 2 -25 The Smar tSw itch 2000 Chassis V iew P ort Inst ance Displays the bridge port index n umber on which the specified MAC address was found. T o use the Device Find Source Ad dress window: 1. In the Address Mo de field, sele ct the form at of the Sourc e Address you wish to find, ei ther MA C or Canonical .
The Smar tSw itch 2000 Chassis V iew 2-26 Using Device Find Sou rce Addre ss T o open the Device Find Sourc e Addr ess window: 1. Click on Device in the Chass is View menu bar . 2. Cl ick t o select Device Find Source Address . The De vice Find Source Addres s wind ow , a s shown in Figure 2-10 , op ens.
Managing the Hub 2-27 The Smar tSw itch 2000 Chassis V iew MAC addr ess was found. The board a nd port index numbers are separated by a period; for example, a Port Instan ce of 1.2 r efers to board (port gr oup) 1 and port number 2. T o use the Device Find Source Ad dress window: 1.
The Smar tSw itch 2000 Chassis V iew 2-28 Mana ging th e Hub contr ol parameters; and for COM ports, you can select the operation you wish the port to perform, a nd set any associated speed parameters.
Managing the Hub 2-29 The Smar tSw itch 2000 Chassis V iew Use the options in this window to select the desired mode: Standard Mode In Standar d Mode, an interface can only either transmit or re ceive at an y giv en time, and must wait for one activity to be co mpleted before switching to the next act ivit y ( rece i ve o r tr ansm it ).
The Smar tSw itch 2000 Chassis V iew 2-30 Mana ging th e Hub those ports allows you to both view and set that port’s available modes. All 100Base-TX Fast Ethernet po rts can be configured to operate.
Managing the Hub 2-31 The Smar tSw itch 2000 Chassis V iew From this wind ow you can manually set the operational mode of the port, or — for 100Base-TX in terfaces — set the port to auto negotiation so that the appro priate operational mode can be d etermined automatically .
The Smar tSw itch 2000 Chassis V iew 2-32 Mana ging th e Hub If Auto Negotiation is the selected mode, the Current Operational Mode field will indicate which mode was selected by the link partn ers. See Setting the Desired Operational Mode , on page 2-33 , for mor e information.
Managing the Hub 2-33 The Smar tSw itch 2000 Chassis V iew • Link Partner does not support auto negotiatio n — auto negotiation is either not supported by or is not currently selected on the r emote port. • Unknown — the lin k partner ’s capabiliti e s coul d not be determined.
The Smar tSw itch 2000 Chassis V iew 2-34 Mana ging th e Hub 2. If you hav e select ed Auto Negotiat ion (for 100Base- TX por ts on ly), us e the Advertised Abilitie s field to sel ect th e operation al cap abiliti es you wish to adver tise to the por t’ s li nk par tner .
Managing the Hub 2-35 The Smar tSw itch 2000 Chassis V iew Figure 2-14. The Ethernet Configuration W indow From this wind ow you can manually set the operational mode of the port, or — for 100Base -TX and 1000Base-S X/LX/CX interfaces — set the port to Auto Negotiate so that the appr opriate operational mode ca n be determined automatically .
The Smar tSw itch 2000 Chassis V iew 2-36 Mana ging th e Hub (for the FE-1 00FX Fast Eth ernet port module), 100 0Base-SX/LX/ CX (for the VHSIM-G6 Gigabit Ethern et port module), or Unknown (f or a por t slot with no module installed) . Link State Displays the curren t connection status of the selected port: Link or No Link.
Managing the Hub 2-37 The Smar tSw itch 2000 Chassis V iew The follo win g ope rati onal m odes c an be spe cif ied: Speed This field specifies a port speed of 1 0MB, 100MB, o r 1000MB. Duplex This field specifies Half Duplex or Full Duplex mode for th e port.
The Smar tSw itch 2000 Chassis V iew 2-38 Mana ging th e Hub 100Base-FX po rts do not support auto negotiation for band width or flow contro l capability , so you must choose between 100Base-FX Half Duplex and 100Ba se-FX Full Duplex mode, and set the flow contr ol option.
Managing the Hub 2-39 The Smar tSw itch 2000 Chassis V iew The Auto Negot iat ion T echnologi es list box has th e followin g col umn headi ng s: Advertise d This column specifies whether the operational m ode listed in the far right column of the list box w ill be advertised to the link pa rtner .
The Smar tSw itch 2000 Chassis V iew 2-40 Mana ging th e Hub 2. Click on C om P ort Configuration , an d then s elect P ort 1 , and rele ase. The Com P or t Con figurati on window , Figure 2-15 , o pens.
Managing the Hub 2-41 The Smar tSw itch 2000 Chassis V iew workstation. Note that when you co nfigure the po rt as a PPP connection, you mu st select the desired baud rate in the Speed Selection fi eld described below .
The Smar tSw itch 2000 Chassis V iew 2-42 Mana ging th e Hub Y ou can also view information con cerning the UPS con nected to your SmartSwitch 2000 includin g: • The amount of time that your UPS has.
Managing the Hub 2-43 The Smar tSw itch 2000 Chassis V iew • Model 1250 • Model 2000 • Matrix 300 0 • Matrix 500 0 •S U 7 0 0 • SU 14 00 • SU 20 00XL •O t h e r UPS Uptime Displays the number of hours that the UPS has been operating since the last time it was started up.
The Smar tSw itch 2000 Chassis V iew 2-44 Mana ging th e Hub T o se t the U PS ID: 1. Click on next to the SET UP S ID text box. A Model number menu displays. Scroll to h ighlight the appr opr iate UP S ID . ( Consu lt the manual that was include d wh en you purcha sed your UPS for the cor rect Mod el ID number .
Managing the Hub 2-45 The Smar tSw itch 2000 Chassis V iew T o acc ess t he Po rt Re di rect w indo w: 1. Click on D ev ic e in the Cha ssis V iew menu bar to di splay the Device menu. 2. Click Po r t R edirector . The P or t Re direct w indow , Figur e 2-17 , o pens.
The Smar tSw itch 2000 Chassis V iew 2-46 Mana ging th e Hub T o delete an entry: 1. Highligh t the en tr y li ne in the c urrent active entr ies li st that you wish to del ete. 2. Click Delete to remove the redirec t pair you hav e highlighted from the cur rent active entr ies li st.
Managing the Hub 2-47 The Smar tSw itch 2000 Chassis V iew Y ou can use NetSight Element Manager to configur e the criteria that determine the priority in which fra mes will be queued for transm issio n by your SmartS witch 2000.
The Smar tSw itch 2000 Chassis V iew 2-48 Mana ging th e Hub Figure 2-18. T he Po rt Priority Conf igura tion W indow T o access the Po rt Priori ty Configura tio n window: 1. Click on D ev ic e to acce ss the De v ice men u. 2. Click on P riority Configuration , and then se lect P ort B ased fr om the menu.
Managing the Hub 2-49 The Smar tSw itch 2000 Chassis V iew 2. Click on the T ransmit Priority dro p-down list box, and scrol l to sele ct the desire d pri or ity lev el ( Normal–7 ) for f orwarding pack ets received on th e sele cted po r t. 3. Click Apply .
The Smar tSw itch 2000 Chassis V iew 2-50 Mana ging th e Hub T o access the MAC Based Priority Configuration window: 1. Click on D ev ic e to acce ss the De v ice men u. 2. Click on P riority Configuration , and then sele ct M AC Based fro m the m enu.
Managing the Hub 2-51 The Smar tSw itch 2000 Chassis V iew T o assign a transmit priority based on MAC-layer information : 1. Click on the Add b utton.
The Smar tSw itch 2000 Chassis V iew 2-52 Mana ging th e Hub 2. Click on the Prio rity dro p-down list b ox, and scr oll to selec t the n ew prior ity lev el ( Normal– 7 ) for f or warding packets re ceived with the spec ified MAC-lay er informati on.
Managing the Hub 2-53 The Smar tSw itch 2000 Chassis V iew 4. Click Apply . The Frame T yp e Entr ies list box will be update d with t he newly crea te d e ntry . Y ou can edit an existing frame T ype entry by changing its pr eviously assigned priority .
The Smar tSw itch 2000 Chassis V iew 2-54 Mana ging th e Hub Figure 2-21. The Sy stem R esources W indow CPU T ype Displays the type and speed (in mega-hertz) o f the CPU (proce ssor) used by the system. Flash Memory Installed: Displays th e tota l amount of install ed flash memory (in Mby tes).
Managing the Hub 2-55 The Smar tSw itch 2000 Chassis V iew NVRAM Av ailable: Displays (in Bytes) the current amount o f non-volatile m emory (N VRAM) tha t is free a nd not curr ently being used for da ta. Current Switch Utiliza tion: Displays the curren t load on the sw itch, which is based on a per centage of maximum switching capacit y of 100%.
The Smar tSw itch 2000 Chassis V iew 2-56 Mana ging th e Hub • none — t he SmartS witch 2000 will reserv e all bandwidth for s witching; theref ore, if a ll the bandwidth is needed fo r switching, management frames may be dropped.
Managing the Hub 2-57 The Smar tSw itch 2000 Chassis V iew What is an 8 02.1Q Port-Base d VLAN? Switches that support the pre-standar d IEEE 802 .1Q draft spe cification for port-based VLANs act by cla ssif ying frames in to VLAN membership. U sua lly , VLAN classification is based on tag headers (VLAN tags ) in the headers of data frames.
The Smar tSw itch 2000 Chassis V iew 2-58 Mana ging th e Hub Ingress List Oper ation A port’s ingress list specifies the VLAN with which received frames will be associat ed. The switch’s Filt ering Database track s the asso ciations between VLAN eligibilities, M AC addresses, and port num bers.
Managing the Hub 2-59 The Smar tSw itch 2000 Chassis V iew Hybrid Hybrid mode (enabled by default) allows a po rt to receive an d transmit both tagged and untagged frames.
The Smar tSw itch 2000 Chassis V iew 2-60 Mana ging th e Hub Figure 2 -22. Th e VLAN Config W in dow The Configur ed VLANS list box and fields allow you to view , create, modify , delete, enable, an d disable 802.
Managing the Hub 2-61 The Smar tSw itch 2000 Chassis V iew Creating and Modifying VLANs The fields immediately below the Configured VLANS list box are used to create and modify your port-based VLANs. T o cr eate a new VLAN: 1. In the VLAN ID fie ld, ent er a uniq ue value between 2 - 4094 .
The Smar tSw itch 2000 Chassis V iew 2-62 Mana ging th e Hub Enabling and Disabling VLANs 1. Select t he des ired VLA N entr y in th e Configured VLANS list box. 2. In the VLAN Admin field, cl ick to select Enable or Disable . 3. Click the Apply b utt on.
Managing the Hub 2-63 The Smar tSw itch 2000 Chassis V iew Figure 2- 2 3. The VLAN Po rt Config W indow The 802.1Q V LAN Port Assignment list box in this window display s the fol lowin g info rmat ion ab out po rts o n you r 802.1 Q swit ch: Slot /Port These fields display the slot an d port index for each port o n your 802.
The Smar tSw itch 2000 Chassis V iew 2-64 Mana ging th e Hub • Hybrid mode, which allows a port to r eceive and transmit both tagged and untagged frames. In th is mode, the port will be a member of its statically assigned VLAN , as well as any dynami cally learned VLAN s.
Managing the Hub 2-65 The Smar tSw itch 2000 Chassis V iew Setting P ort Operational M odes T o ass ign a port operational m ode ( dot1dT runk , dot1QT ru nk , or hybrid ) to a po rt on your 80 2.1 Q sw itch: 1. In the VLA N P or t Co nfig wi ndow’ s list box, click to se lect a por t to whic h you wish to assign a por t operational mode.
The Smar tSw itch 2000 Chassis V iew 2-66 Mana ging th e Hub Figure 2- 24. The VLAN Egress Port Config W indow The list box at the top of this windo w is used to select a configured VLAN f or associat ion with yo ur switch’s ports. Clicking on a VLAN will display it s currently associated po rts in the lower portion of this wi ndow .
Managing the Hub 2-67 The Smar tSw itch 2000 Chassis V iew Under the list box ther e are two groups o f check boxes that display the ports on the switch. A checkm ark in the po rt’s check box indica tes that the VLAN selected in the list box is in the po rt ’s egress lis t.
The Smar tSw itch 2000 Chassis V iew 2-68 Mana ging th e Hub 2. Select B roadcast Suppression . The Broadc ast St atistics and S uppress ion window , Figu re 2-25 , opens. Figure 2- 25. The Broadcast Statistics and S uppression Window Po r t # This read- only field indicates the number assigned to each interface on the device.
Managing the Hub 2-69 The Smar tSw itch 2000 Chassis V iew T o reset the Peak Rate and T ime Since Peak value s: 1. Shift-click to sel ect one or m ore interfaces for which you w ant to res et the va l u e s. 2. Click on the R eset Peak Rate a nd Peak Time on Sel ected Ports: drop-d ow n list box, and drag to sel ect YES .
The Smar tSw itch 2000 Chassis V iew 2-70 Mana ging th e Hub Setting the Devi ce Date and Time Y ou can select the Edit Device T ime and Edit Device Date opti ons from the me nu to change the date and time stored in the device’s intern al clock. T o edit the device time: 1.
Managing the Hub 2-71 The Smar tSw itch 2000 Chassis V iew 3. Enter the n ew date in a mm/dd/y yyy format, e ither by highlight ing the fi eld you wish to change and using the up and down arrow b uttons, or by simply enter ing th e new value in the appr opr iate field .
The Smar tSw itch 2000 Chassis V iew 2-72 Mana ging th e Hub.
3-1 Chapter 3 Alarm Configuration Accessi ng the B asic a nd Advanced Al ar ms window s; crea ting a b asic al ar m; crea ting an advanced alar m; cr eating ev ents; assign ing acti ons to e vents; vi.
Alar m C onfigu ration 3-2 Basic Alar m C onfi guration Using the Advanced Alarms featur e, you can define custom alarms for almost any MIB-II or RMO N object, as long as it is pr esent in the device firmwar e and its value is defined as an integer (including counters, timeticks, and gauges).
Basic Al ar m Configuration 3-3 Alar m C onfigura tion Accessing the Basic Alarm Configuration Window T o access the RMON Basic Alarm Configuratio n window: 1. F rom the Chas sis Vi ew , click on th e appropr iate por t in terf ace to display the Po r t m e n u .
Alar m C onfigu ration 3-4 Basic Alar m C onfi guration Viewing Alarm Status The Basic Alarm Configuration win dow contains all the fields you need to configur e one or more of the three basic alarms .
Basic Al ar m Configuration 3-5 Alar m C onfigura tion Log/T rap Indicates whether or no t each alarm has been config ured to create a silent log of event occurr ences and the a larms that triggered them, and whether or not each alarm ha s been con figured to issue a trap in respon se to a rising or fallin g alar m condition.
Alar m C onfigu ration 3-6 Basic Alar m C onfi guration The remainder of the windo w fields provide the means for configuring alarms for each available interface. The inf ormation pro vided in this screen is static once it is displayed; for updated information, click on the Refr esh button.
Basic Al ar m Configuration 3-7 Alar m C onfigura tion 5. Any value y ou enter in th e Community field w ill b e incl uded in a ny trap message s is sued by your Smar tSwitc h 2000 in resp onse to the.
Alar m C onfigu ration 3-8 Basic Alar m C onfi guration When con fig ur ing a Kilobits alar m , NetSi ght Eleme nt Mana ger conver ts octets into kilo bits (un its of 125 bytes, or octets) f or you; for e xample, to set a f allin g thre shold of 625 o ctets, ent er a thre shold value of 5.
Basic Al ar m Configuration 3-9 Alar m C onfigura tion Vie wing the Basic Alarm Log If yo u have s elected t he “log ” res ponse for an al arm, and th at alar m’s ri sing and/or falling threshold has been crossed, the Basic Alarms a pplica tion will create a log of alarm occurren ces.
Alar m C onfigu ration 3-10 Advanced Alar m Confi guration Description Provides a deta iled description of the condition which triggered the alarm, including whether it wa s a Risin g or Falling alarm, the V alue which triggered the alar m, and the configured Thr eshold that was crossed.
Adv anced Al arm Confi gur atio n 3- 11 Alar m C onfigura tion Figure 3-3. The RMON Advanced Alarm /Event List W i ndow The top portion of the window displays the usual device information boxe s; the .
Alar m C onfigu ration 3-12 Advanced Alar m Confi guration The fields in the Alarms W atch display inclu de: Index The index is a num ber that uniquely identifies each alarm. Index numbers ar e user-defin ed; you can use any indexing scheme that works for you.
Adv anced Al arm Confi gur atio n 3- 13 Alar m C onfigura tion The information pr ovided in this scr een is static once it is displayed; for updated informatio n, click Refresh .
Alar m C onfigu ration 3-14 Advanced Alar m Confi guration The main Alarm/Event windo w remains active while the Cr eate/Edit Alarm window is open; to edit a dif feren t alarm (or use its settings as .
Adv anced Al arm Confi gur atio n 3- 15 Alar m C onfigura tion the crea tor of the alar m. Since any workst ation ca n acces s and change the alar ms you are s etting in your Smar tSwi tch 2000, some owner iden tificatio n can prevent alar ms from b eing a ltered or d eleted acci dentally .
Alar m C onfigu ration 3-16 Advanced Alar m Confi guration Almost any RMON o r MIB-II obj ect can be use d as an alar m vari able as long as it is resid ent in t he device fir mware an d its value is define d as a n integ er (includi ng cou nters, timeti cks, and gauges).
Adv anced Al arm Confi gur atio n 3- 17 Alar m C onfigura tion Be su re you define your instanc e values car efull y; if you neglect to set the inst ance corre ctl y , y ou wi ll r eceiv e the “Se t f a iled ; en sure v a riab le is rea dab le ” error mes sage when you cl ick Apply to set your al ar m.
Alar m C onfigu ration 3-18 Advanced Alar m Confi guration 6. In the Al arm Inte rval field, e nter th e amoun t of tim e ov er whic h the sele cted v ar iable will be sampl ed. At the end of the inter val, the sam ple value will be compar ed to both the r isi ng and falling threshold s.
Adv anced Al arm Confi gur atio n 3- 19 Alar m C onfigura tion 7. Since th e first s ample taken can be mislea ding, you can us e the sele ction s in the Star tup Alarm b o x to di sable either the r ising or the falling thr eshold for that samp le onl y .
Alar m C onfigu ration 3-20 Advanced Alar m Confi guration 13. Click Apply to set your change s. If you hav e made any err ors in configur ing alar m p arameters ( using an inv alid value i n any fiel.
Adv anced Al arm Confi gur atio n 3- 21 Alar m C onfigura tion Fig ure 3- 5. The R M O N Crea te /E dit Even ts W ind ow 2. If you are creating a new event , us e the Inde x field to assign a uniqu e, currentl y unused in dex number to identi fy the ev en t.
Alar m C onfigu ration 3-22 Advanced Alar m Confi guration 3. Click in the Descript ion text bo x to enter a ny text descripti on you want to identify the ev ent. This des cr iption disp lays in the Events W atch win dow and help you dis tingui sh amo ng the events you hav e configu red.
Adv anced Al arm Confi gur atio n 3- 23 Alar m C onfigura tion c. Select both Log and Tr a p to b oth log the e vent occurre nce and ge nerate the traps.
Alar m C onfigu ration 3-24 Advanced Alar m Confi guration Figure 3-6. The RMON Cr eate/Edit Actions W indow 2. The index number and de scr iptio n of the e vent with whic h the acti on or actions will be assoc iated is disp lay ed in the Event: fiel d at the top of the window .
Adv anced Al arm Confi gur atio n 3- 25 Alar m C onfigura tion 5. Once you have selecte d the ob ject you wi sh to set, you must assi gn the appropr ia te instan ce value in the Instance field .
Alar m C onfigu ration 3-26 Advanced Alar m Confi guration Figure 3-7. The Event Log W indow The top portion of the window con tains the device inform ation boxes, as well as the event index number an.
How Rising and Fa lling Thresholds Work 3-27 Alar m C onfigura tion Ho w Risi ng and Falling Th resh olds W o rk Rising and falling thr esholds are intended to be used in pairs, and can be used to provide n otification of spikes or dro ps in a monitor ed value — either of which can indicate a network pro blem.
Alar m C onfigu ration 3-28 How Rising and Falling Threshol ds Work.
4-1 Chapter 4 Statistics Accessi ng inte rf ace sta tisti cs from the Chass is View; av ailable sta tistics windows Each port menu in the SmartSwitch 2000 Ch as sis V iew provides two statisti cs selections: Statistics and I/F Statistics .
Statis tics 4-2 RMON Statis tics RMON Statistics The RMON Ethe rnet Statistics wind ow ( Figur e 4-1 ) provides a detailed statistical breakdo wn of traf fic on the monitored Ethernet network. Statistics ar e pr ovided in both nume rical and graphic format, a nd include peak values and the date and time they occurred.
RMON Stat istic s 4-3 Statis tics Ethernet statistics are: Bytes Displays the total number of bytes contained in pa ckets processed on the network segment. This number includes bytes contained in err or packets. P ackets Displays the tota l number of packets processe d on th e netwo rk segment.
Statis tics 4-4 RMON Statis tics Fragments Indicates the number of pa ckets processed by the network segment that were undersized (less than 64 bytes in length; a runt pa cket) and had either a non-integra l num ber of bytes (align men t error) or a bad frame check sequence (CR C error).
RMON Stat istic s 4-5 Statis tics The per centages displayed to the right of the numerical values for these fields indicate wha t percentage of all pack ets transmitted o n the netwo rk segment w ere of the noted size.
Statis tics 4-6 IF Statis tics T o te mpo rarily freeze the statisti cs display , select the Freeze Stats opt i on ; in th i s mode, statistics will continu e to be collected, but the display w ill not update. T o resume normal updates, click again to de-select the fr eeze option.
IF Statistic s 4-7 Statis tics Figure 4-3. The Interface S tatistics W indow Three informational field s appear in the upper portion of the wind ow: Description Displays the interface description for the curre ntly selected port: Enet Port. Address Displays the MAC (physical) addr ess of the selected port.
Statis tics 4-8 IF Statis tics Discarded Displays the number of packets which wer e discarded eve n though they contained no errors that wo uld prevent transmissi on.
5-1 Chapter 5 Mana ging Ethernet Micr oLAN Switc hes Viewing the St atisti cs, Timer S tatist ics, and P erformance Graph win dows; usin g the repe ater , board, and por t Al ar m Lim its windows; set.
Managing Ether net Micr oLAN S witch es 5-2 Repe ater S tat ist ics The Statistics Windo ws At the Statistics windows, you can view accumulated statistics and err or breakdo wns for each network supported by the Ether net MicroLA N Switch, and for each individual mo dule and port.
Repe ater St atis tics 5-3 Manag ing Et her net Mi cro LAN Swi tches Figure 5-1. The Repeater Sta tistics W indow T o open the board-level Sta tistics window from the Chassis V iew window: 1. Click on the a ppropr iate Module Index to disp lay the Module menu.
Managing Ether net Micr oLAN S witch es 5-4 Repe ater S tat ist ics Stat isti cs De fine d The Statistics wi ndow displays the statistical coun ts accumulated since th e Ethernet MicroLAN Module was l.
Repe ater St atis tics 5-5 Manag ing Et her net Mi cro LAN Swi tches Soft Er rors CRC Erro rs Displays the total number of packets with CRC ( C yclical R edundancy C heck) err ors that the r epeater , boar d, or port has r eceived from the n etwork. CRC erro rs occur when packets ar e somehow damaged in transit.
Managing Ether net Micr oLAN S witch es 5-6 Repe ater S tat ist ics Timer Statisti cs Y ou ca n us e the T im er Stati stics windows to ga ther stati stical informa tion concerning the r epeater channels on your Eth ernet MicroLAN Mo dule and its boar ds and/or ports over a user-set time period.
Repe ater St atis tics 5-7 Manag ing Et her net Mi cro LAN Swi tches Figure 5-2. The Repeater T i mer Statistics W indow T o open the board-level T imer Statistics window: 1. Click on the a ppropr iate Module Index to disp lay the Module menu. 2. Select t he appr opr iate repe ater cha nnel ( A - H ) to re v eal the board-l ev el Repeater menu.
Managing Ether net Micr oLAN S witch es 5-8 Repe ater S tat ist ics % E r rors The perce ntage of err ors pr ocessed by the selected r epe ater , board, or port during the user-def ined time interval. Setting the Time r Statist ics Inter val T o set the Timer Statistics ti me interval: 1.
Repe ater St atis tics 5-9 Manag ing Et her net Mi cro LAN Swi tches Accessing the Perf ormance Graph Windo ws T o access the repeater -level Performance G raph window: 1. Click on R epeater on the Chassis View menu bar ; a menu li sting ac tive repeater c hannel s ope ns.
Managing Ether net Micr oLAN S witch es 5-10 Repe ater S tat ist ics 2. Click on Perf ormance Graph . The por t-lev el P erf or man ce Graph w indow opens.
Repe ater St atis tics 5-11 Manag ing Et her net Mi cro LAN Swi tches Runt Packets The number of r unt packets detected by the selected repeater , board, or port. A runt fram e is one that is less than the minimum Ethern et frame size of 64 bytes. Giant Packets The number of giant packets detected by the selected repeater , board, or port.
Managing Ether net Micr oLAN S witch es 5-12 Repe ater S tat ist ics Figure 5 -5. Detail Breakdown W indow Frame Status Breakdown W ith the Detail Breakdow n window , you can see the status of the fram es passing thro ugh your each r epeater channel and each boar d and port.
Alar m L imits 5-13 Manag ing Et her net Mi cro LAN Swi tches Alarm Limits Using the Alarm Limits windows, you can configure alarm limits for the Ethernet MicroLA N Switch at the repea ter , boar d, a.
Managing Ether net Micr oLAN S witch es 5-14 Alar m L imits Figure 5-6. The Repeater Alarm Limits W i ndow T o access the board-level Alarm Limits window: 1. Click on the a ppropr iate Module Index to disp lay the Module menu. 2. Select t he appr opr iate repe ater cha nnel ( A - H ), then r ight t o rev ea l the board-lev el Repeater menu.
Alar m L imits 5-15 Manag ing Et her net Mi cro LAN Swi tches Figure 5-7. The Boar d Alarm Limits W indow T o access the port-level Alarm Limits window: 1. Click once on th e appr opri ate Po r t to display the Port menu. 2. Click on A larm Limits . The P ort Alar m L imits wi ndow , Figure 5-8 , opens.
Managing Ether net Micr oLAN S witch es 5-16 Alar m L imits Figure 5-8. Port Alarm Limits W indow The Alarm Limits window displays the follo wing fields: Collisions Use the text box in this field to e.
Alar m L imits 5-17 Manag ing Et her net Mi cro LAN Swi tches P ackets Use the text box in this field to determ ine the total number of packets (including all errors except collisions) that m ust be processed by the repeater , boa rd, or port within the user-specified time before an alarm is triggered.
Managing Ether net Micr oLAN S witch es 5-18 Alar m L imits within : This field displays the user - configura ble alar m limit timer interval: the amount of time the selected statistics w ill be counted before being compared to the configured thr esholds.
T rap S elec tion 5-19 Manag ing Et her net Mi cro LAN Swi tches Setting Alarm Limits T o set repeater-, boar d-, or port-level alarms, first be sur e you have opened th e appro priate Alarm Limits window , then follow the steps outlined below: 1.
Managing Ether net Micr oLAN S witch es 5-20 T rap Selec tion Accessing the T rap Selection Windows T o open the repea ter-level T rap Selection window fr om the Chassis V iew: 1. Click on R epeater on the Chassis V iew menu bar . Selec t the app ropri ate repeater to rev eal the Re peater menu.
T rap S elec tion 5-21 Manag ing Et her net Mi cro LAN Swi tches The Boar d T rap Selection window is similar to th e Repeater T rap Selection window displa yed in F igure 5-10 , and serves the same function (since, for the Ethernet Mic roLAN Switch , a “boar d” is the equivalent of a repeater ch annel).
Managing Ether net Micr oLAN S witch es 5-22 T rap Selec tion Information in cluded in a Link State trap will i nclude the board number and port number associated with the trap.
T rap S elec tion 5-23 Manag ing Et her net Mi cro LAN Swi tches A lockStatusChanged trap is generated when the ports in the hub ar e locked or unlocked using the Lock/Unlock Ports option on the Re peater menus; the interesting informati on is the new lock status.
Managing Ether net Micr oLAN S witch es 5-24 T rap Selec tion 3. Click Apply . The d evice will now issue, or s top is suing , the in dica ted traps to your managem ent work stati on.
6-1 Chapter 6 FDDI Applications Concentrato r config uration; co nnect ion pol icy; station list; concentra tor performa nce; FDDI stati stics; frame translati on The FDDI menu lets you access windows.
FDDI Applic ation s 6-2 Concentrato r Configura tion • Station List — W ith this w indow y ou c a n s ee the co nf igur at i o n o f t h e ri n g on which the SMT entity r esides, including number.
Conc ent ra tor Con figur ation 6 -3 FDDI Ap plicati ons Figure 6-2. The Concentrator Configuration W indow MA C State This field indicates the current stat e of the MAC on the FDDI ring associated with the selected SMT entity . The RMT component of SMT monitors MAC opera tion and takes actions necessary to aid in achieving an operational ring.
FDDI Applic ation s 6-4 Concentrato r Configura tion Non-Op-Dup The ring is not operation al; the addr ess of the MAC under contr ol of the SMT entity has been found to duplicate that of another MAC on the ring. The duplicate address condition prevented ring r ecovery and initializa tion after a claim and beacon process.
Conc ent ra tor Con figur ation 6 -5 FDDI Ap plicati ons T -Req. (Reques ted T arget T oken Rotation Time) The token ro tation time bid made by the selected SMT entity during ring initializa tion.
FDDI Applic ation s 6-6 Conne ction P olicy W indow • Secondary 2 indicates tha t th e Secondary 2 FDDI ring is bein g used. • Local means that the MAC is connected to one or more n odes but is not connected to the dua l ring. • Isolated means that the MAC has n o connection to the ring o r other concentrator ports.
Conn ecti on P olicy Wind ow 6-7 FDDI Ap plicati ons The following table summarizes the FDDI connection rules: V — valid con nectio n X — ille gal c onnec tion U — undesi rable (but legal) con nection P — valid, but when bo th A and B are c onnected to M por ts ( a dua l-homin g config uration), o nly the B conn ection is used.
FDDI Applic ation s 6-8 Station L ist Station List The Station List il lustrates th e con figuratio n of the HSIM-F6 managed ring , includin g numbe r of no des on th e ring , node ad dresses (b ot h Ca no nical a nd MAC), node class, and ring topology .
Stat ion List 6-9 FDDI Ap plicati ons Figure 6-4. The Station List Window Address Mode Displays the curren t mode being used to display the addr esses of the devices in the Station List. The two possible modes ar e Canoni cal (FDDI) or MAC (Ethernet).
FDDI Applic ation s 6-10 FDDI P erformance MA C Address Dis p lay s th e ma nufa ct u rer-se t MAC ad dress of t h e nod e in s ert ed i n to t he ring . MAC addr esses are hard-co ded into the device and ar e not configurable. Node Class Displays the type of ring device.
FDDI P erf o rm ance 6-11 FDDI Ap plicati ons Statistics are displayed in thr ee ways: • By count (i.e., the number detected of each for the selected interval). • By rate (i.e., the n umber of each per second, as averaged o ver the selected interval).
FDDI Applic ation s 6-12 FDDI Sta tistics FDDI Statistics The FDDI Statist ics window displays traffic stat istics for the HS IM-F6’s S MT entity , including the number of frames an d kilobytes per .
Configu rin g FDDI F r ame T ranslatio n Setti ngs 6-13 FDDI Ap plicati ons %Util The per centage of utilization of available bandw idth by the indicated SMT over the current poll interva l; the per c.
FDDI Applic ation s 6-14 Configu r ing FDDI F rame T ransla tion S ettings Figure 6-8. The Frame T ransla tio n W indow Inf ormation about Ethernet and FD DI Frame T ypes There are fo ur frame types which ca n be transmitted on an IEEE 802.3 /Ethernet network – Ethernet II , Ethe rne t 80 2.
Configu rin g FDDI F r ame T ranslatio n Setti ngs 6-15 FDDI Ap plicati ons If the frame is exiting th e FDDI ring through ano ther FDDI/Ethernet bridge, th e FDDI frame must be con verted back into an IEEE 802.
FDDI Applic ation s 6-16 Configu r ing FDDI F rame T ransla tion S ettings This is the default frame type for No vell NetW are software version 3.12 and beyond; it is also used for OSI packets on IEEE 802.x LAN networks. Ethernet 802 .3 (Ethe rnet Raw) The Ethernet 8 02.
Configu rin g FDDI F r ame T ranslatio n Setti ngs 6-17 FDDI Ap plicati ons There is no FDDI equivalent fo r Ethernet 802.3 Raw frames or Ethernet II fra mes.
FDDI Applic ation s 6-18 Configu r ing FDDI F rame T ransla tion S ettings 802.2 , FDDI SNAP (generally used when bridging to an AppleT alk environment on an FDDI ring), or FDDI M AC (the default opti.
7-1 Chapter 7 A TM Configuration Viewing conne ction data; c onfigu rin g P er manent V ir tual Ci rcuits (PV Cs); a dding and deleti ng conne ction entri es The A TM Connections option is available w hen you have an HSIM-A6DP installed and enab led in your SmartSwitch 2000.
A TM Conf ig urat ion 7-2 Acces sing the A TM Connec tions W indow Figure 7-1. Current A TM Connections W indow The Cu rrent A TM Conne ct ions w indo w provides the fol lowin g info rma tion a bout t.
Acces sing the A T M Conne ction s Wi ndow 7-3 A TM Confi guratio n VPI Displays the V irtual Path Identifier assigned to the connection. V irtual Path Identifiers are used to group virtual connect ions, al low ing for cha nn el trunking between A TM sw itches.
A TM Conf ig urat ion 7-4 Configu rin g Connec tions Configuring Connections Adding a New Connection T o configure new Perman ent V i rtual Circuits (PVCs), enter the following information in the text fields w hich appear just below the settings list box: 1.
8-1 Chapter 8 HSIM-W87 Configuration Configu rin g the T3 i nterface; config uri ng T1 co nnecti ons; set ting pr ior i ty IP Add resses The HSIM-W87 is a High Speed Interface Module that pr ovides W ide Ar ea Network (W AN) services. The HSIM has a DS3 interface (T3), prov iding up to 28 separate DS1 conn ections (T1).
HSIM-W8 7 Confi guration 8-2 The T3 Configurat ion Wind ow Figure 8-1. The T3 Conf ig W indow The T3 Config wi ndow provides the following info rmation about the device’s T3 configuration and a llow.
The T1 Config uration Wi ndow 8 -3 HSIM-W 87 Confi guration Line Status This field indicates the line status of the interface. It contains loopba ck state and failure state information.
HSIM-W8 7 Confi guration 8-4 The T1 Configurat ion Wind ow Figure 8-2. The T1 Conf ig W indow At the top of the T1 Config window a lis t box display s con figuration in formatio n for each T1 conn ection (line).
The T1 Config uration Wi ndow 8 -5 HSIM-W 87 Confi guration V alid Inter vals Displays the number of previous intervals for which valid data was collected.
HSIM-W8 7 Confi guration 8-6 Configur ing I P Pr io rity Configuring IP Priority The IP Priority Config uration win dow allows yo u to assign prio rity transmis sion to up to 16 IP addresses c ommunicating across the HSIM-W87. T o a ccess t he IP Prio rity Conf ig win dow: 1.
Configu rin g IP Pr ior ity 8- 7 HSIM-W 87 Confi guration Number of Entries Displays the num ber of Priority IP ad dresses currently configured. This number will change each time you add o r delete an IP address in th e list box. Below these two fields is a list bo x displaying th e currently configured IP Priority Addresses.
HSIM-W8 7 Confi guration 8-8 Configur ing I P Pr io rity.
Index-1 Index Symbol s % Load 4-3 % of T ot. Err ors 4-4 Numerics 802.1d 2-59, 2- 64 802.1Q 1-1 1d Trunk 2-59, 2-64 1Q Tr unk 2- 59, 2- 64 Default VLAN 2-61 Egress List 2-59 Egress List Configuration .
Index Index-2 command buttons 1-9 community names 3-7 in traps 3 -7 Concentr ator 6-10 Conce ntr a tor Co nfigu ration window 6-2 Concentrat or M Ports 6-5 Concentrator Non -M Ports 6-5 Config uration.
Index-3 Index H Hard Error s 5-4 Help butt on 1-9, 1- 10 Help Menu 2-9 HSIM-A6D P 2-58, 7-1 HSIM -F 6 6 -6, 6-1 1 HSIM -W87 8- 1 hyster esis 3-10, 3- 27 I I/F Su mma r y inter face perfor mance stat istics 2-20 I/F Summar y win dow 2-19 IEEE 802.
Index Index-4 Oversized 4-4 Owner 3-15, 3- 22 P packet capture events 3-1 Packet count 5-17 Packet T ype 4-3 Packets 4-3, 5-19 Packets Received 2-23, 4-8 Packets T ransmitted 2-24, 4 -8 Payload 8-3, 8.
Index-5 Index Stat ions P anel 6-9 Statistics, Ethernet 4-2 Status (alarm) 3-4 Switched V irtual Circuits (SVCs) 7-1 T T1 Config urat ion 8-3 T1 Frame T ype 8-5 T1 Line BuildOut 8-5 T1 Line Number 8-4.
Index Index-6.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Enterasys 2000 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Enterasys 2000 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Enterasys 2000 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Enterasys 2000 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Enterasys 2000, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Enterasys 2000.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Enterasys 2000. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Enterasys 2000 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
