IBM ATM OC-3c Uživatelský manuál

8271 Nways Ethernet LAN SwitchATM OC-3c ModuleUser’s Guide

4 ABOUT THIS GUIDE

D-6 APPENDIX D: TROUBLESHOOTINGCheck the Physical ConnectionsCheck that the Link Status and Far End Status LEDs on the ATM Module are ON and lit green

Identifying the Problem D-7Is the ATM Port Enabled?Is the Port State field set to Enable?Yes — go to step 7.No — go to step 6.Enable the ATM PortaSet

D-8 APPENDIX D: TROUBLESHOOTINGAccess the ATM VLAN LEC Status ScreenaFrom the Main Menu select the SWITCH MANAGEMENT option. The Switch Management scr

Identifying the Problem D-9Both Devices Must be AAL5 CompliantThe ATM Module is compatible with AAL5 ATM devices. If the ATM Switch connected to the A

D-10 APPENDIX D: TROUBLESHOOTINGIs the ILMI Connection Set Up Correctly?To communicate with each other, edge-devices must use the same Interim Local M

Identifying the Problem D-11Why has the LEC Operation Failed?There are two fields on the ATM VLAN LEC Status screen, described in step 9, that can be

D-12 APPENDIX D: TROUBLESHOOTINGTable D-4 Last LEC Failure ReasonState Possible Causes Possible SolutionsNoneThe LEC is either inactive or has succe

Identifying the Problem D-13Duplicated ATM AddressA source ATM address duplicates a previously registered ATM address.The LES has received a request f

D-14 APPENDIX D: TROUBLESHOOTINGIs the LEC Operational Now?Yes — Go to step 25.No — Contact Technical Support. Refer to Appendix E.InvalidRequestor ID

Identifying the Problem D-15Has the Problem been Solved?Yes — No further action is required.No — There may be a configuration problem with your networ

1FEATURES AND BENEFITSThis chapter describes the main features of the IBM 8271 Nways Ethernet LAN Switch ATM OC-3c Module and the benefits of ATM with

D-16 APPENDIX D: TROUBLESHOOTINGAn example of the ATM LEC Setup screen is shown in Figure D-8.bSelect the VLAN associated with the LEC that you wish t

Solving Known Problems D-17Solving Known ProblemsUse this section if you have already pin-pointed the problem, and wish to look up possible solutions.

D-18 APPENDIX D: TROUBLESHOOTINGPower Supply ProblemsTable D-5 Power Supply ProblemsProblem Possible Causes Possible SolutionsSwitch does not power

Solving Known Problems D-19Power On Self Test (POST) FailureTable D-6 Power On Self Test (POST) FailureProblem Possible Causes Possible SolutionsSwi

D-20 APPENDIX D: TROUBLESHOOTINGCable Connection ProblemsTable D-7 Cable Connection ProblemsProblem Possible Causes Possible SolutionsLink Status LE

Solving Known Problems D-21ATM ProblemsTable D-8 ATM ProblemsProblem Possible Causes Possible SolutionsThe ATM Connection Table is only showing rese

D-22 APPENDIX D: TROUBLESHOOTINGVLAN or ELAN ProblemsTable D-9 VLAN or ELAN ProblemsProblem Possible Causes Possible SolutionsThe configured LECs ca

Solving Known Problems D-23If you have problems that are not addressed by troubleshooting information in this guide, contact Technical Support, or you

D-24 APPENDIX D: TROUBLESHOOTINGCleaning Dirty Fiber Optic ConnectorsTo prevent dirt and dust from collecting on the fiber optic connectors, avoid tou

ETECHNICAL SUPPORT AND SERVICEThis appendix provides contacts for help if you have questions about the IBM 8271 Nways Ethernet LAN Switch products or

1-2 CHAPTER 1: FEATURES AND BENEFITSATM Module FeaturesThe following list summarizes the ATM Module features. These features are described in more det

E-2 APPENDIX E: TECHNICAL SUPPORT AND SERVICE

FNOTICES, TRADEMARKS, AND WARRANTIESReferences in this publication to IBM products, pro-grams, or services do not imply that IBM intends to make these

F-2 APPENDIX F: NOTICES, TRADEMARKS, AND WARRANTIESStatement of Limited WarrantyThe warranties provided by IBM in this State-ment of Limited Warranty

Statement of Limited Warranty F-3IBM or your reseller is unable to repair or replace the Machine, you may return it to your place of pur-chase and you

F-4 APPENDIX F: NOTICES, TRADEMARKS, AND WARRANTIESTHESE WARRANTIES REPLACE ALL OTHER WARRAN-TIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NO

Electronic Emission Notices F-5Electronic Emission NoticesFederal Communications Commission (FCC) StatementThis equipment has been tested and found to

F-6 APPENDIX F: NOTICES, TRADEMARKS, AND WARRANTIESEuropean Union (EU) StatementThis product is in conformity with the protection requirements of EU C

Electronic Emission Notices F-7Japanese Voluntary Control Council for Interference (VCCI) Statement Class BThis is a Class B product based on the stan

F-8 APPENDIX F: NOTICES, TRADEMARKS, AND WARRANTIESIf necessary, the user should consult the dealer or an experienced radio/television technician for

GLOSSARYAALATM Adaptation Layer — A set of protocols that translate user higher-layer protocols into ATM cell format. The AAL is divided into the Conv

2NETWORK LAYER CONCEPTSThis guide contains several chapters that describe the basic concepts behind ATM technology, and integrating ATM into your exis

2 GLOSSARYByteAn Octet or 8 bits of data.CellBasic ATM transmission unit. It is a 53-byte packet, consisting of a 5-byte header and a 48-byte payload.

GLOSSARY3GFCGeneric Flow Control — A 4-bit field in the ATM cell header in order to support multiplexing functions. Its default value is ‘0000’, when

4 GLOSSARYmultiplexIn this user guide, multiplexing means to take packets from several sources and interleave them into one connection. For example, p

GLOSSARY5SONETSynchronous Optical Network — An ANSI-defined standard for high speed and high quality digital optical transmission. It has been recogni

6 GLOSSARYVCIVirtual Channel Identifier — A 16-bit value in the ATM cell header that provides a unique identifier for the virtual channel (VC) that ca

BIBLIOGRAPHYAsynchronous Transfer Mode (ATM)Books“ATM Foundation for Broadband Networks”Author: Uyless Black. Published by: Prentice HallISBN: 0-13-29

2 BIBLIOGRAPHY

INDEXAAddress resolution 2-6, 2-13ARP Table 8-8Creating an entry 8-9Deleting entries 8-10Entry type 8-9Locating an entry 8-10Updating entries 8-10Asyn

2 INDEXEelectronic emmission notices F-5Emulated LAN (ELAN)ATM Module 4-3ELAN name 8-5, 9-6Manual configuration 8-5Mapping to VLANs 3-2, 4-2Resource p

INDEX3PortConfiguration 8-2Setup 8-6Speed 8-7State 8-7Statistics 9-3Power supply 6-3, 6-7PTI 2-14RResilient Links 8-11Configuration example 5-4Routing

2-2 CHAPTER 2: NETWORK LAYER CONCEPTSUpper Layer ProtocolsThe Upper Layer is the layer in the network architecture that relates to user applications a

4 INDEX

What is LAN Emulation (LANE)? 2-3LAN Emulation ComponentsEach Emulated LAN (ELAN) is composed of a set of LAN Emulation components. This section descr

2-4 CHAPTER 2: NETWORK LAYER CONCEPTSLAN Emulation Components in Your NetworkEach Emulated LAN consists of a single LANE Service, and a number of LAN

What is LAN Emulation (LANE)? 2-5Joining the ELANBefore a LAN Emulation Client (LEC) can transmit any Ethernet frames onto the ATM network it must fir

2-6 CHAPTER 2: NETWORK LAYER CONCEPTSMapping Ethernet and ATM AddressesEach device connected to an Ethernet port has one or more MAC addresses. Each A

What is LAN Emulation (LANE)? 2-7LAN Emulation Address Resolution Protocol (LE_ARP)An LE_ARP request is sent to the LES to locate the destination MAC

Before using this information and the product it supports, be sure to read the general information under Appendix A,“Safety Infor-mation” and Appendix

2-8 CHAPTER 2: NETWORK LAYER CONCEPTSATM Adaptation Layer (AAL)Ethernet frames can be between 64 and 1514 bytes in length. ATM transmits data in fixed

Asynchronous Transfer Mode (ATM) Layer 2-9ATM is Service TransparentATM allows for the high speed transfer of a wide range of user traffic, including

2-10 CHAPTER 2: NETWORK LAYER CONCEPTSA VCC is defined as spanning end-to-end, whereas a Virtual Channel (VC) is the name given to a section of the VC

Asynchronous Transfer Mode (ATM) Layer 2-11Figure 2-7 Switching Cells using VPI and VCI values.

2-12 CHAPTER 2: NETWORK LAYER CONCEPTSSwitched Virtual Circuits (SVCs)SVCs use the signalling protocol to dynamically define connections as they are n

Asynchronous Transfer Mode (ATM) Layer 2-13Interim Local Management Interface (ILMI)The ATM Forum produced the Interim Local Management Interface (ILM

2-14 CHAPTER 2: NETWORK LAYER CONCEPTSThe ATM Layer and Cell StructureThis section describes the cell structure, and how the ATM Layer uses the inform

Physical Layer 2-15Physical LayerThe physical layer is responsible for transmitting and receiving ATM cells over a physical medium. It is also respons

2-16 CHAPTER 2: NETWORK LAYER CONCEPTS

3VIRTUAL LAN CONCEPTSThis chapter provides a brief overview of Virtual LAN (VLAN) concepts, and describes how to extend VLANs into the ATM network.Thi

CONTENTSABOUT THIS GUIDEIntroduction 1Terminology 1ATM Terminology 1Finding Information in This Guide 2Conventions 2Related Documentation 31FEATURES A

3-2 CHAPTER 3: VIRTUAL LAN CONCEPTSExtending VLANs into the ATM NetworkYou can use LAN Emulation to define and extend VLANs seamlessly through the ATM

Extending VLANs into the ATM Network 3-3Figure 3-3 Extending VLANs into the ATM Network.

3-4 CHAPTER 3: VIRTUAL LAN CONCEPTS

4PUTTING YOUR ATM NETWORK TOGETHERThis chapter takes you through the process of planning your network. Topics include: Planning and tracking your netw

4-2 CHAPTER 4: PUTTING YOUR ATM NETWORK TOGETHER Does your network meet safety specifications?You should always follow safety requirements and ensure

ATM Connections Within Your Network 4-3 Virtual circuits required. MAC addresses that can be held in the device LAN Emulation ARP Table.When a LAN Emu

4-4 CHAPTER 4: PUTTING YOUR ATM NETWORK TOGETHERFigure 4-1 shows an example of a network configuration where a remote edge-device does not support LAN

5NETWORK CONFIGURATION EXAMPLES This chapter provides examples of possible network configurations using the ATM Module. If you are unfamiliar with ATM

5-2 CHAPTER 5: NETWORK CONFIGURATION EXAMPLESCampus ConfigurationThe section gives an example of ATM within a campus environment. The diagram shown in

Campus Configuration 5-3Figure 5-2 Campus and Cost Sensitive Network

4PUTTING YOUR ATM NETWORK TOGETHERPlanning Your Network 4-1ATM Configuration Rules 4-2Extending VLANs Through the ATM Network 4-2ATM Connections Withi

5-4 CHAPTER 5: NETWORK CONFIGURATION EXAMPLESMaking a Building Resilient to Network FailureYou can build resilience into your building backbone as sho

6INSTALLING AND SETTING UP THE MODULEFollowing Safety InformationATTENTION: Only hold the ATM Module by the edges to avoid damage from static. Do not

6-2 CHAPTER 6: INSTALLING AND SETTING UP THE MODULEqualquer trabalho de manutenção, deve ler o conteúdo do Apêndice A, “Informações sobre Segurança”,

Device Support 6-3Device SupportThe ATM Module allows you to connect your IBM 8271 Nways Ethernet LAN Switch to an ATM network. Switches that support

6-4 CHAPTER 6: INSTALLING AND SETTING UP THE MODULEInstallationThis section describes how to install the ATM Module using the example of an IBM 8271 N

Post-Installation Checks 6-5Connecting a cable to the ATM Port1Ensure that the cable you wish to connect to the port meets the correct specification.

6-6 CHAPTER 6: INSTALLING AND SETTING UP THE MODULELED SummaryThis section describes the LEDs that provide status and troubleshooting information. Tab

Post-Installation Checks 6-7Checking the Power SupplyCheck the MGMT LED on the Switch. If the MGMT LED is not lit there is a power supply problem. Try

6-8 CHAPTER 6: INSTALLING AND SETTING UP THE MODULE4Remove any objects obstructing the cable and straighten out any kinks in the cable.5If you suspect

7ACCESSING MANAGEMENT FEATURESThe menu-driven user interface built into the device is known as the VT100 or Local Management interface. The VT100 mana

ASAFETY INFORMATIONSafety Notices A-1World Trade Safety Information A-1BSCREEN ACCESS RIGHTSCATM MODULE TECHNICAL SPECIFICATIONSEnvironmental Specific

7-2 CHAPTER 7: ACCESSING MANAGEMENT FEATURESFigure 7-1 Screen Map

Logging On 7-3Logging On1Connect your terminal to the Console port using a cross-over cable for a serial line connection. 2At your terminal, press [Re

7-4 CHAPTER 7: ACCESSING MANAGEMENT FEATURESTo find out which ATM screens can be accessed for each of the security levels, refer to Appendix B, “Scree

8MANAGING THE ATM MODULEThis chapter describes how to manage the ATM Module. If you wish to view statistics, refer to Chapter 9, “Monitoring the ATM M

8-2 CHAPTER 8: MANAGING THE ATM MODULEConfiguring an ATM PortThe ATM Module Configuration Screen shows the settings and standards used by the ATM Modu

Configuring an ATM Port 8-3SONET/SDH Specifies the framing used. Select either SONET STS-3c or SDH STM-1. The default is SONET STS-3c.The MAX VPI Bits

8-4 CHAPTER 8: MANAGING THE ATM MODULEUpgradable Software Version Shows the version number of agent software stored on the ATM Module (in Flash EPROM)

Extending VLANs into the ATM Network 8-52If the VLAN is to be connected to an ELAN, select Yes. If you do not wish the VLAN to be connected to an ELAN

8-6 CHAPTER 8: MANAGING THE ATM MODULEFigure 8-5 VLAN Selected ScreenFigure 8-6 Switch VLAN Setup ScreenUse [Ctrl]+[D] keys to scroll down the lis

ATM Port Setup 8-7Figure 8-7 ATM Port Setup ScreenThe screen shows the following fields:Port Identifies the selected port.Port Speed Shows the speed

8-8 CHAPTER 8: MANAGING THE ATM MODULELost Links The number of times a link was unable to transmit traffic, that is, the number of times (since the de

Mapping Far End MAC Addresses 8-9VLAN Allows you to select a VLAN, and display address information about remote systems connected to that VLAN.Port Id

8-10 CHAPTER 8: MANAGING THE ATM MODULEFinding an Address Entry1In the Far MAC Address field, type in the MAC address associated with the ATM address

Setting Up Resilient Links 8-11ATM Address Shows the ATM address of LEC for either the ATM Module or the ATM Switch. If Near is shown in the End field

8-12 CHAPTER 8: MANAGING THE ATM MODULEEvery 2 minutes the Switch checks the resilient links to ensure that the fastest link is the Main (active) link

Upgrading Software 8-13When the OK button is selected, the status of the upgrade is displayed. The following error and status messages are available:E

8-14 CHAPTER 8: MANAGING THE ATM MODULEStatus MessagesThis section lists status messages that can appear when you download new software images to a de

9MONITORING THE ATM MODULEThis chapter describes how to monitor the status and performance of your ATM Module. Figure 9-1 shows the screen map. Monito

9-2 CHAPTER 9: MONITORING THE ATM MODULEStatistics OverviewThis section provides a brief overview of the additional statistics that are available when

ATM Port Statistics 9-3ATM Port StatisticsThe ATM Port Statistics screen provides a top level summary of traffic levels on the ATM Port. You can use t

ABOUT THIS GUIDEIntroductionThis guide provides the information that you need to install and configure the IBM 8271 Nways Ethernet LAN Switch ATM OC-3

9-4 CHAPTER 9: MONITORING THE ATM MODULEReceive Errors Shows the percentage of cells received that have errors. For example, cells received with corru

ATM VLAN LEC Status 9-5The screen also shows the following ATM statistics:Cells Received The number of ATM cells received by the port.Cells Transmitte

9-6 CHAPTER 9: MONITORING THE ATM MODULEPort ID Identifies the currently selected port.VLAN Allows you to select the VLAN you wish to monitor. The def

ATM VLAN LEC Status 9-7Invalid Request ParametersThe LES/LECS has rejected a request from the LEC because the request parameters were incompatible wit

9-8 CHAPTER 9: MONITORING THE ATM MODULEInsufficient ResourcesThere are insufficient resources to grant a request.Too many connections have been reque

ATM VLAN LEC Status 9-9LEC Operation at Failure Identifies the operation that was being carried out when the LEC setup failed. This field should be us

9-10 CHAPTER 9: MONITORING THE ATM MODULEFrames Received The number of Ethernet frames received by the LEC.Frames Transmitted The number of Ethernet f

ATM Physical Layer Statistics 9-11Figure 9-5 Physical Layer StatisticsCurrent Sample Specifies the number of seconds elapsed within the current samp

9-12 CHAPTER 9: MONITORING THE ATM MODULEThe following statistics are available:Errored Seconds (Near) The number of errored seconds at the ATM Module

ATM Physical Layer Statistics 9-137If you suspect that the fiber optic cable is not working, replace the cable with a cable known to be working, and c

2 ABOUT THIS GUIDEFinding Information in This GuideThe following table shows you where to find specific information within this guide.ConventionsTable

9-14 CHAPTER 9: MONITORING THE ATM MODULE

ASAFETY INFORMATIONYou must read the following safety information before carrying out any installation or removal of components, or any maintenance pr

A-2 APPENDIX A: SAFETY INFORMATIONGevarr: Voordat u begint met het installeren van dit produkt, dient u eerst de veiligheidsrichtlijnen te lezen die z

Safety Notices A-3Vigyázat: Mielôtt megkezdi a berendezés üzembe helyezését, olvassa el a Caution: Safety Information – Read This First, SD21-0030 kön

A-4 APPENDIX A: SAFETY INFORMATIONATTENTION DANGER: Installation and removal of the unit must be carried out by qualified personnel only.DANGER: L&apo

Safety Notices A-5DANGER: This unit operates under SELV conditions (Safety Extra Low Voltage) according to IEC 950, the conditions of which are mainta

A-6 APPENDIX A: SAFETY INFORMATIONGervaar: Deze eenheid werkt onder extra lage spanning (SELV, Safety Extra Low Voltage) volgens norm IEC 950. Er word

Safety Notices A-7Это устройство работает по стандарту IEC 950 в условияхБезопасно низкого напряжения (SELV) только при условии,что все оборудование в

A-8 APPENDIX A: SAFETY INFORMATION

BSCREEN ACCESS RIGHTSThis appendix lists the security access level you must have to be able to access the ATM Module local management screens, and lis

Related Documentation 3Related DocumentationThe ATM OC-3c Module documetation set includes: IBM 8271 Nways Ethernet LAN Switch ATM OC-3c Module Quick

B-2 APPENDIX B: SCREEN ACCESS RIGHTS

CATM MODULE TECHNICAL SPECIFICATIONSEnvironmental SpecificationsThe environmental specifications for the ATM Module are shown in Table C-1.ATM Cable S

C-2 APPENDIX C: ATM MODULE TECHNICAL SPECIFICATIONSMaximum attenuation includes attenuation and the loss induced by other components such as connector

ATM Cable Specification C-3To check that the bandwidth of your fiber is within an acceptable range:1Divide the amount of bandwidth available according

C-4 APPENDIX C: ATM MODULE TECHNICAL SPECIFICATIONS

DTROUBLESHOOTINGHow to Use this Guide to TroubleshootThis troubleshooting section describes how to identify the cause of a problem and suggests possib

D-2 APPENDIX D: TROUBLESHOOTINGUsing LEDsTable D-1 describes the LEDs on the Switch, and Table D-2 describes the LEDs on the ATM Module. Table D-1 L

Identifying the Problem D-3Identifying the ProblemThis section describes how to identify problems, and suggests possible solutions. Flow diagrams have

D-4 APPENDIX D: TROUBLESHOOTINGFigure D-1 Troubleshooting Flow Diagram

Identifying the Problem D-5The numbered steps in this section relate to the numbered steps shown in Figure D-1.Access the Physical Layer Statistics Sc