Cabletron SystemsメーカーLancast Media Converter 7000の使用説明書/サービス説明書
ページ先へ移動 of 108
Title Page Smar tSwitch 7000 User’ s Guide.
.
iii Notice Cabletron Systems r eserves the right to make changes in speciÞcations and other information contained in this document without prior notice. The reader should in all cases consult Cabletr on Systems to determine whether any such changes have been made.
iv AppleT alk, Apple, Macintosh, and T okenT alk are r egistered trademarks; and Apple Remote Access and EtherT alk are trademarks of Apple Computer , Inc. SmartBoost is a trademark of American Power Conversion ST is a register ed trademark and C++ is a trademark of A T&T Banyan and VINES are r egistered trademarks of Banyan Systems, Inc.
v ANNEX, ANNEX-II, ANNEX-IIe, ANNEX-3, ANNEX-802.5, MICRO-ANNEX-XL, and MICRO- ANNEX-ELS are trademarks of Xylogics, Inc. MAXserver and Xyplex are trademarks of Xyplex, Inc. Restricted Rights Notice (Applicable to licenses to the United States Government only .
vi.
vii Contents Chapter 1 Intr oduction Using the SmartSwitch 7000 User Õs Guide................................................................ 1-3 Related Manuals ........................................................................................
Contents viii Chapter 3 Statistics Accessing the Statistics W indow ................................................................................. 3-1 RMON Statistics .................................................................................
1-1 Chapter 1 Intr oduction How to use this guide; related guides; software con v entions; getting help; Smar t Switch 7000 firmware v ersions W elcome to the SPECTRUM Element Manager for the SmartSwitch 7000 User Õ s Guide .
Introduction 1-2 At the heart of each SmartSwitch 7000 hub is its 7X00 SmartSwitch Control Module, which supervises access to the switching backplane and performs all forwarding, Þltering, and connection management functions; a variety of NIM modules provide connectivity for FDDI, Ethernet, Fast Ethernet, and A TM networks.
Using the Smar tSwitch 7000 User’ s Guide 1-3 Introduction differ ences, however , each device will be named separately , as necessary . Note, too, that the information displayed in many of the wind.
Introduction 1-4 Related Manuals Related Manuals The SmartSwitch 7000 user Õs guide is only part of a complete document set designed to provide compr ehensive information about the features available to you through SPECTRUM Element Manager .
Software Con v entions 1-5 Introduction Figure 1-1. Sample W indow Showing Group Boxes Device Name Displays the user-deÞned name of the device. The device name can be changed via the System Group window; see the Generic SNMP User Õs Guide for details.
Introduction 1-6 Softw are Conv entions Using the Mouse This document assumes you are using a W indows-compatible mouse with two buttons; if you are using a thr ee button mouse, you should ignore the operation of the middle button when following procedur es in this document.
Getting Help 1-7 Introduction ¥ Dragging means to move the mouse pointer across the scr een while holding the mouse button down. It is often used for drag-and-drop operations to copy information from one window of the scr een into another , and to highlight editable text.
Introduction 1-8 Smar tSwitch 7000 Firmware Getting Help fr om the Cabletr on Systems Global Call Center If you need technical support related to SPECTRUM Element Manager , or if you have any question.
2-1 Chapter 2 The Smar tSwitch 7000 Chassis Vie w Inf or mation displa yed in the Chassis View windo w; the logical chassis view; the Chassis Manager window; hub management functions The SmartSwitch 7.
The Smar tSwitch 7000 Chassis View 2-2 Viewing Chassis Inf or mation 1. In any map , list, or tree view , click the right mouse button once to select the SmartSwitch 7000 you wish to manage .
Viewing Chassis Inf or mation 2-3 The Smar tSwitch 7000 Chassis View Figure 2-2. SmartSwitch Chassis V iew W indows 7C03 MMA C Smar tSwitch 7C04-R W or kg roup Smar tSwitch 7C04 W or kg roup Smar tSwi.
The Smar tSwitch 7000 Chassis View 2-4 Viewing Chassis Inf or mation Fr ont P anel Inf ormation In addition to the main interface display , the Chassis V iew window provides the following device infor.
Viewing Chassis Inf or mation 2-5 The Smar tSwitch 7000 Chassis View Boot Prom The revision of BOOT PROM installed in the 7X00 Contr ol Module. Firmware The revision of device Þrmwar e stored in the 7X00 Contr ol ModuleÕs FLASH PROMs. Time The current time, in a 24-hour hh:mm:ss format, set in the 7X00 Contr ol ModuleÕs internal clock.
The Smar tSwitch 7000 Chassis View 2-6 Viewing Chassis Inf or mation Figure 2-3. SmartSwitch 7000 Chassis V iew Menu Structure The Device Menu From the Device Menu at the Chassis V iew window menu bar , you can access the following selections: ¥ Device T ype.
Viewing Chassis Inf or mation 2-7 The Smar tSwitch 7000 Chassis View ¥ I/F Summary , which lets you view statistics (displayed both graphically and numerically) for the trafÞc pr ocessed by each network interface on your device, and provides access to some SNMP MIB-II windows.
The Smar tSwitch 7000 Chassis View 2-8 Viewing Chassis Inf or mation ¥ I/F T ype will display the port type of each port in the SmartSwitch chassis: Eth (ethernet-csmacd) or FDDI. For more information on the port display options available via this menu, see Selecting a Port Status V iew , page 2-10 .
Viewing Chassis Inf or mation 2-9 The Smar tSwitch 7000 Chassis View The Board Men us The Board menu for the 7X00 Contr ol Module (always installed in slot 1) provides mostly bridging-related selections, many of which ar e also available from the Bridge Status window: ¥ Spanning T ree.
The Smar tSwitch 7000 Chassis View 2-10 Viewing Chassis Inf or mation ¥ Statistics... , which launches the highest level of statistics currently available for the selected port.
Viewing Chassis Inf or mation 2-11 The Smar tSwitch 7000 Chassis View ¥ LIS (Listening) if the port is not adding information to the Þltering database. It is monitoring Bridge Protocol Data Unit (BPDU) traf Þc while preparing to move to the forwarding state.
The Smar tSwitch 7000 Chassis View 2-12 Viewing Chassis Inf or mation generated during the last polling interval by devices connected to that port compared to the total number of valid packets pr ocessed by the port.
Viewing Chassis Inf or mation 2-13 The Smar tSwitch 7000 Chassis View The Chassis Manager window , Figure 2-4 , is a r ead-only window that displays the MIBs and the MIB components Ñ and, therefor e, the functionality Ñ supported by the currently monitor ed device.
The Smar tSwitch 7000 Chassis View 2-14 Viewing Chassis Inf or mation Device T ype Choosing the Device T ype option on the Device menu brings up a window that describes the management device being modeled: Figure 2-5.
Viewing Chassis Inf or mation 2-15 The Smar tSwitch 7000 Chassis View Viewing I/F Summary Inf ormation The I/F Summary menu option available from the Device menu lets you view statistics for the trafÞc pr ocessed by each network interface on your device.
The Smar tSwitch 7000 Chassis View 2-16 Viewing Chassis Inf or mation Description A text description of the interface: Host (for the 7X00 Controller ModuleÕs two backplane interfaces); FDDI , Ethernet (for both standard and Fast Ethernet fr ont panel interfaces), and AT M .
Viewing Chassis Inf or mation 2-17 The Smar tSwitch 7000 Chassis View In Discards Packets received by the device interface that wer e discarded even though no err ors prevented them fr om being delivered to a higher layer pr otocol (e.g., to free up buffer space in the device).
The Smar tSwitch 7000 Chassis View 2-18 Viewing Chassis Inf or mation Viewing Interface Detail The Interface Statistics window ( Figure 2-8 ) pr ovides detailed MIB-II interface statistical information Ñ including counts for both transmit and receive packets, and error and buf fering information Ñ for each individual port interface.
Viewing Chassis Inf or mation 2-19 The Smar tSwitch 7000 Chassis View T ype Displays the interface type of the selected port: ethernet-csmacd, fddi, atm, or other . The lower portion of the window provides the following transmit and r eceive statistics; note that the Þrst four statistics are also graphically displayed in the pie charts.
The Smar tSwitch 7000 Chassis View 2-20 Viewing Chassis Inf or mation P ackets T ransmitted (T ransmit only) Displays the number of packets transmitted by this interface.
Viewing Chassis Inf or mation 2-21 The Smar tSwitch 7000 Chassis View Figure 2-9. The FDDI Statistics W indow The FDDI Statistics window contains the following Þelds: SMT # The index number of the SMT entity to which the statistics entries pertain. Frames/sec The current bandwidth, expr essed in terms of frames per second.
The Smar tSwitch 7000 Chassis View 2-22 Viewing Chassis Inf or mation Figure 2-10. New T imer Interval W indow 2. Highlight the Hour , Minute , or Second field, and type in a ne w v alue.
Managing the Hub 2-23 The Smar tSwitch 7000 Chassis View 3. In the te xt field, enter a valid MA C address in hexadecimal f or mat, then click OK . If you enter an in v alid address — that is, one not in he xadecimal xx-xx-xx-xx-xx-xx- f or mat — an error windo w will appear indicating that the selected address is inv alid.
The Smar tSwitch 7000 Chassis View 2-24 Managing the Hub Figure 2-12. Port ConÞguration Use the options in this window to select the desired mode: Standard Mode In Standard Mode, an interface can onl.
Managing the Hub 2-25 The Smar tSwitch 7000 Chassis View T o access the Port ConÞguration W indow: 1. F rom the Chassis View , click to select the por t y ou wish to configure; the P or t Menu will displa y . 2. Drag down to Configuration , and release .
The Smar tSwitch 7000 Chassis View 2-26 Managing the Hub The following information about the selected Fast Ethernet port is displayed: P or t T ype Displays the portÕs type: 100Base-TX RJ-45 (for bui.
Managing the Hub 2-27 The Smar tSwitch 7000 Chassis View Duplex, and 10Base-T . Of the selected abilities, the highest mode mutually available will automatically be used.
The Smar tSwitch 7000 Chassis View 2-28 Managing the Hub For a 100Base-FX port, the selection process is somewhat simpler; Auto Negotiation for these ports is not supported at this time, so you need only choose between 100Base-FX standard mode and 100Base-FX Full Duplex.
Managing the Hub 2-29 The Smar tSwitch 7000 Chassis View changes to be completely initialized, par ticularly if the link par tners m ust negotiate or re-negotiate the mode; y ou may need to refresh the windo w a f ew times bef ore current operational data is displa yed.
The Smar tSwitch 7000 Chassis View 2-30 Managing the Hub SLIP Select this option to use the selected COM port as a SLIP connection for out-of-band SNMP management via dir ect connection to a serial port on your network management workstation.
Managing the Hub 2-31 The Smar tSwitch 7000 Chassis View Setting the Device Date and Time The Device menu provides the options that allow you to change the date and time stored in the deviceÕs internal clock: Edit Device T ime and Edit Device Date . T o edit the device time: 1.
The Smar tSwitch 7000 Chassis View 2-32 Managing the Hub 3. Enter the new date in a mm/dd/yyyy f ormat, either by highlighting the field y ou wish to change and using the up and down arro w buttons , or by simply entering the new v alue in the appropriate field.
3-1 Chapter 3 Statistics Accessing interf ace statistics from the Chassis View; av ailable statistics windo ws Selecting the Statistics option from the port interface displays in the chassis view will.
Statistics 3-2 RMON Statistics RMON Statistics The RMON Ethernet Statistics window ( Figure 3-1 ) pr ovides a detailed statistical breakdown of traf Þc on the selected Ethernet network. Statistics are pr ovided in both numerical and graphic format, and include peak values and the date and time they occurred.
RMON Statistics 3-3 Statistics The column on the left side of the window displays the statistic name, total count, and percentage; the column on the right displays the peak value for each statistic, and the date and time that value occurred.
Statistics 3-4 RMON Statistics Prob lems CRC/Alignment Indicates the number of packets processed by the network segment that had a non-integral number of bytes (alignment error) or a bad frame check sequence (Cyclic Redundancy Check, or CRC error).
RMON Statistics 3-5 Statistics Frame Size (Bytes) Pac kets The Frame Size (Bytes) Packets Þelds indicate the number of packets (including error packets) pr ocessed by the network segment that were of the noted length, excluding framing bits but including frame check sequence bits.
Statistics 3-6 RMON Statistics T o choose T otal , Delta , or Accum : 1. Click on the T otal radio button; after the completion of the current polling cycle plus one complete polling cycle, the screen.
Interf ace Statistics 3-7 Statistics Adjust printer settings as requir ed, then click OK . (For mor e information on the appropriate printer settings, consult your Micr osoft Windows User Õ s Guide .
Statistics 3-8 Interf ace Statistics T ype Displays the interface type of the selected port: ethernet-csmacd, fddi, or atm. Note that there is no type distinction between Ethernet and Fast Ethernet.
Interf ace Statistics 3-9 Statistics P ackets T ransmitted (T ransmit only) Displays the number of packets transmitted by this interface..
Statistics 3-10 Interf ace Statistics.
4-1 Chapter 4 Alarm Configuration Accessing the Basic and Adv anced Alar ms windo ws; creating a basic alar m; creating an advanced alar m; creating ev ents; assigning actions to ev ents; viewing the.
Alar m Configur ation 4-2 Basic Alar m Configur ation Using the Advanced Alarms feature, you can deÞne custom alarms for almost any MIB-II or RMON object, as long as it is present in the device Þrmwar e and its value is deÞned as an integer (including counters, timeticks, and gauges).
Basic Alar m Configur ation 4-3 Alar m Configur ation Accessing the Basic Alarm Configuration Windo w T o access the RMON Basic Alarm ConÞguration window: 1. F rom the Chassis View , click on the appropriate por t interface to displa y the P or t menu.
Alar m Configur ation 4-4 Basic Alar m Configur ation When the window is Þrst launched, no interfaces will be selected, and the , , and buttons will be grayed out: and will activate when an interface is selected; will activate when an interface which has experienced an alarm event is selected.
Basic Alar m Configur ation 4-5 Alar m Configur ation IF T ype Displays each interfaceÕs type: FDDI, Ethernet, T oken Ring, or A TM. Note that there is no type distinction between standar d Ethernet and Fast Ethernet. Status Displays the current status of the selected alarm type for each interface: Enabled or Disabled.
Alar m Configur ation 4-6 Basic Alar m Configur ation The remainder of the window Þelds pr ovide the means for conÞguring alarms for each available interface. Note that the information provided in this scr een is static once it is displayed; for updated information, click on Refresh .
Basic Alar m Configur ation 4-7 Alar m Configur ation 5. Any v alue you enter in the Community field will be included in an y trap messages issued by y our Smar tSwitch 7000 in response to the alar m(s) y ou are configuring; this value is also used to direct tr aps related to this alar m to the appropriate management workstation(s): a.
Alar m Configur ation 4-8 Basic Alar m Configur ation F or more information on how actions are triggered, see How Rising and Falling Thresholds W ork , page 4-26 . 8. Click in the F alling Threshold field; enter the low threshold v alue f or this alar m.
Basic Alar m Configur ation 4-9 Alar m Configur ation T o disable an alarm: 1. In the top of the window , click to select the v ariable f or which you wish to disable an alarm: Kilobits , T otal Error s , or Br oadcast/Multicast .
Alar m Configur ation 4-10 Adv anced Alar m Configuration Index This index number uniquely identiÞes each occurr ence of a rising or falling event. Note that, since the alarm whose log is displayed.
Adv anced Alar m Configuration 4-11 Alar m Configur ation Figure 4-3. The RMON Advanced Alarm/Event List W indow The top portion of the window displays the usual device information boxes; the remain.
Alar m Configur ation 4-12 Adv anced Alar m Configuration Interval Indicates the amount of time, in seconds, over which the selected variable will be sampled. At the end of the interval, the sample value is compared to both the rising and falling thresholds conÞgur ed for the alarm.
Adv anced Alar m Configuration 4-13 Alar m Configur ation Index numbers are permanently assigned to their associated events; however , numbers made available by the deletion of existing events can be assigned to new events, as needed. Note that indices 2000 to 4999 are reserved and unavailable.
Alar m Configur ation 4-14 Adv anced Alar m Configuration T o conÞgure an alarm: 1. If y ou wish to modify an existing alarm or create a ne w alarm based on the parameters of an e xisting one, be s.
Adv anced Alar m Configuration 4-15 Alar m Configur ation value pro vided is SPEL — <IP address> <(hostname)> <date> <time>, where <IP address> and <(hostname)> ref er to the workstation that created the alar m and <date> and <time> reflect the date and time of the alarm’ s creation.
Alar m Configur ation 4-16 Adv anced Alar m Configuration Almost any RMON or MIB-II object can be used as an alarm variable as long as it is resident in the de vice fir mw are and its value is defined as an integer (including counters, timetic ks, and gauges).
Adv anced Alar m Configuration 4-17 Alar m Configur ation Be sure you define y our instance values carefully; if you neglect to set the instance correctly , y ou will receiv e the “Set failed; ensure v ariable is readab le” error message when you clic k to set your alar m.
Alar m Configur ation 4-18 Adv anced Alar m Configuration 6. In the Alarm Interval field, enter the amount of time o ver which the selected v ar iab le will be sampled. At the end of the inter v al, the sample value will be compared to both the rising and falling thresholds .
Adv anced Alar m Configuration 4-19 Alar m Configur ation 13. Click to set your changes . If you hav e made an y errors in configuring alar m par ameters (using an inv alid value in any field, lea.
Alar m Configur ation 4-20 Adv anced Alar m Configuration T o conÞgure an event: 1. If y ou wish to modify an e xisting e vent or create a ne w ev ent based on the parameters of an e xisting one, b.
Adv anced Alar m Configuration 4-21 Alar m Configur ation If y ou wish to modify an existing event , enter the appropr iate inde x value , or double-clic k on the ev ent of interest in the Events W atch list (in the main Alarm/Event window). 3. Click in the Description te xt box to enter an y te xt description you want to identify the e vent.
Alar m Configur ation 4-22 Adv anced Alar m Configuration 6. Use the options in the Event T ype field to define how this e vent will respond when an associated threshold is crossed: a. Select the Log option to create a silent log of e vent occurrences and the alar ms that triggered them.
Adv anced Alar m Configuration 4-23 Alar m Configur ation Adding Actions to an Event For devices which support the proprietary Actions MIB, selecting the button in the Create/Edit Events window open.
Alar m Configur ation 4-24 Adv anced Alar m Configuration 3. The Description field is not currently editable; future releases of SPECTR UM Element Manager will allow y ou to assign a descriptive label to each set of actions.
Adv anced Alar m Configuration 4-25 Alar m Configur ation Deleting an Alarm, Event, or Action T o delete an alarm, event, or action: 1. In the appropriate window , highlight the alar m, e vent, or action y ou wish to remov e. 2. Click on Delete to remo v e.
Alar m Configur ation 4-26 How Rising and F alling Thresholds W or k The top portion of the window contains the device information boxes, as well as the event index number and the event description; .
How Rising and F alling Thresholds W or k 4-27 Alar m Configur ation Figure 4-8. Sample Rising and Falling Threshold Pairs TIP The current version of the Basic Alarms window only allows you to conÞg.
Alar m Configur ation 4-28 How Rising and F alling Thresholds W or k.
5-1 Chapter 5 FDDI Mana g ement Concentrator configuration; connection policy; station list; concentrator performance The FDDI menu lets you access windows to view the SmartSwitch 7000Õs FDDI conÞg.
FDDI Management 5-2 Configuration ¥ Station List Ñ W ith this window you can see the conÞguration of the ring on which the SMT entity resides, including number of nodes, node addr esses (both Canonical and MAC), node class, and current ring topology .
Configuration 5-3 FDDI Management Figure 5-2. The Concentrator ConÞguration W indow MA C State This Þeld indicates the current state of the selecting ringÕs MAC component. (The RMT component of SMT monitors MAC operation and takes actions necessary to aid in achieving an operational ring.
FDDI Management 5-4 Configuration condition causes ring initialization to fail after the claim and beacon recovery pr ocess. Like Non-Op-Dup, this state will not occur unless you are using locally-administered addr esses. Directed The beacon process did not complete within 7 seconds.
Configuration 5-5 FDDI Management ¥ If both TTR T value and source addr ess length are equal, the frame with the highest address has pr ecedence. The 7F06-02 is shipped with a default T -Req of 6 msec.
FDDI Management 5-6 Connection P olicy ¥ Not A vailable means that there is no MAC on the FDDI ring associated with the selected SMT entity . Again, this state will not occur for the 7F06-02. ¥ Unknown means that device Þrmware cannot determine the MAC path.
Connection P olicy 5-7 FDDI Management The following table summarizes the FDDI connection rules: V — v alid connection X — illegal connection U — undesirab le (but legal) connection; this requires that SMT is notified. P — v alid, but when both A and B are connected to M por ts (a dual-homing configuration), only the B connection is used.
FDDI Management 5-8 Connection P olicy TIP Y ou can use any SNMP Set Request or MIB tool to edit the Connection Policy for your device by setting the fddimibSMTConnectionPolicy MIB OID (part of the MIBII FDDI T ransmission MIB (RFC1512).
Station List 5-9 FDDI Management Station List The Station List illustrates the conÞguration of the ring associated with the currently selected SMT entity , including number of nodes on the ring, node addresses (both Canonical and MAC), node class, and ring topology .
FDDI Management 5-10 Station List Stations P anel The Stations Panel displays a list of the stations on the ring to which the selected SMT is connected, in ring sequence from the MAC, along with each stationÕs node class and current topology .
P erformance 5-11 FDDI Management P erf ormance The Concentrator Performance window , Figure 5-5 , pr ovides graphical and numeric performance statistics for the selected SMT entity , including: ¥ T ransmit Frames ¥ Receive Frames ¥ Frame Errors ¥ Lost Frames ¥ Ring Ops Figure 5-5.
FDDI Management 5-12 P erformance A vailable statistics are: T ransmit Frames The number of frames transmitted by the MAC associated with the SMT during the chosen interval. Receive Frames The number of frames received by the MAC associated with the SMT during the chosen interval.
6-1 Chapter 6 A TM Configuration Viewing connection data; configur ing P er manent Vir tual Circuits (PVCs); adding and deleting connection entries The A TM interface provided by the 7A06-01 NIM mod.
A TM Configuration 6-2 Accessing the A TM Connections Windo w Figure 6-1. The Current A TM Connections W indow The Current A TM Connections window provides the following information about the device.
Accessing the A TM Connections Windo w 6-3 A TM Configuration Settings The Settings portion of the window contains a list box which displays information about each of the currently conÞgur ed PVCs, as well as the Þelds used to conÞgure new connections: I/F The device interface on which the PVC was conÞgured.
A TM Configuration 6-4 Configuring Connections Status Displays the current administrative status of the connection: enabled or disabled. In current versions of Þrmware, all connections ar e enabled by default, and cannot be disabled. UpT ime The length of time the selected connection has been enabled.
Configuring Connections 6-5 A TM Configuration 4. In the Encapsulation T ype field, click on the do wn arrow located to the right of the field, and drag do wn to select the desired encapsulation type. Current v ersions of 7A06-01 fir mw are use 802.
A TM Configuration 6-6 Configuring Connections.
Inde x-1 Index Symbols % Load 3-3 % of T ot. Errors 3-4 Numerics 7C0x SmartSwitch family 1-1 7C03 MMAC SmartSwitch 1-1 7C04 Workgroup SmartSwitch 1-1 7C04-R Workgroup SmartSwitch 1-1 NIM modules 1-2 A.
Inde x Inde x-2 name 1-5 time 2-32 type 2-14 Directed 5-4 Discarded packets 2-19, 3-8 Drop Events 3-3 Dual-homing 5-7 Duplex Mode 2-24 E Encapsulation T ype 6-3 Event (RMON) 4-1 Event Index 4-12 Event.
Inde x-3 Inde x Not A vailable 5-3 Number of MACs 5-5 Number of Nodes 5-9 O OFF 2-11 OK button 1-7 ON 2-11 Oversized 3-4 Owner (RMON) 4-14, 4-21 P Packet Capture events 4-1 Packet 3-3 received 2-19, 3.
Inde x Inde x-4.
デバイスCabletron Systems Lancast Media Converter 7000の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Cabletron Systems Lancast Media Converter 7000をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはCabletron Systems Lancast Media Converter 7000の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Cabletron Systems Lancast Media Converter 7000の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Cabletron Systems Lancast Media Converter 7000で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Cabletron Systems Lancast Media Converter 7000を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はCabletron Systems Lancast Media Converter 7000の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Cabletron Systems Lancast Media Converter 7000に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちCabletron Systems Lancast Media Converter 7000デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
