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3Com 7600 manual 6Logical and Physical View of a Network With vLANs

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12-22CHAPTER 12: ATM, LAN EMULATION, AND VIRTUAL LANS

Figure 12-6Logical and Physical View of a Network With vLANs

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3Com 7600 manual 6Logical and Physical View of a Network With vLANs

Contents

User Guide United States Government Legends Contents Normal operation Fast Ethernet Status Indicators Power-UpRapid Configuration Parameter Entry Quick Key Functions Menu IndexFast Ethernet Port Attributes and Statistics Remove a Static Address from FDB Display STP Enable StatusDisplay Broadcast Throttling Attributes Display Bridge STP AttributesManaging ATM Resources Display Current LEC ConfigurationUpdate NMS IP Address Display Snmp ConfigurationEnable/Disable Event Messages 10-14 Display Software Version 10-212-7 12 ATM, LAN EMULATION, and Virtual LansBridge Frame Forwarding Logic 12-1412-15 13-5Fast Ethernet Card Specifications Physical C-1 Glossary Guide About this GuideIf you are looking for information about Turn to Tables 1 and 2 list conventions used throughout this guide ConventionsConventions 7600 Card Documentation and Related ManualsIf you want to Read 7600 Card Documentation Road MapAbout Overview of the 7600 CardCard CardFront Panel of the 7600 Card with full configuration Capabilities 3Physical module with SC connector for fiber ports4CHAPTER 1 Overview of the 7600 Card Typical Applications of the 7600 Card 5Fast Ethernet backbone Server farm Starting UP Safety Precautions Installation and POWER-UPMesures de sécurité Vorsichtsmaßnahm en Removing InstallingCard Modules Connection to a workstation or other DTE, using a normal Connecting toNetwork Devices Local Management Connecting to aTerminal Card System System Power green Fail red Active orangeStates How they are indicated on the LED displayPower-up phase and initiates the Power-On Self-Test Power-UpWhen the 7600 Card is powered-up, it automatically begins Mode Meaning and User ActionLED Color Meaning 4Fast Ethernet Port LEDsConfiguration Fast SetupRapid Setup Modes SetupFull Setup Mode CELLplexSetup Mode Selection Switch Setup ModeSetting Special Parameters 2Setup Procedure Navigation Aids 1Integrated Fast Setup Procedure SectionsSetup Section Description SectionsSelect the menu item 9 FST Fast Setup Integrated Fast Setup is initiated from the LMA Main MenuOperation CELLplex 7000. The CELLplex Main Menu appears as followsNetwork Prefix Section Example Dialog The following dialog appears on the screenLecs Address Section LE Parameters SectionUNI/NNI Parameters Section Virtual Network Configuration Section LE Client Configuration SectionConfirmation Dialog Section Admin VN Management Configuration SectionMulti-context Fast Setup to perform a rapid configuration of the 7600 CardPort Context ContexType To go to 4Setup Procedure Navigation AidsAdmin Main Menu appears as in the following example Management Configuration Section Elan Configuration SectionNew configuration is displayed for this context System Mode Configuration SectionCard Management Tasks Management Local Management BasicsMenu Hierarchy Main menu Keying in this submenu’s 4 option gives you the prompt ExampleFinally, entering 1 finalizes the prompt as Entry of the stp submenu’s 3 option produces the prompt3Editing Aids 2Menu Navigation FunctionsMenu hierarchy Menu IndexSystem Management Menu ATM Menu Bridge MenuLAN Emulation Menu Network Management Menu Virtual LAN MenuConfiguring Bridges Configuring Virtual LansDisplay Current BridgeAttach Fast 2Bridge Configuration ParametersEthernet Port to Enter 6 Following is displayedATM Port to Bridge Attach InternalFast Ethernet port #3 is attached to bridge #1 Internal ATM port is attached to bridge #0Managing Fast Ethernet Ports Management TasksManaging Ethernet Bridges Managing the Bridge Forwarding DatabaseAttributes Fast Ethernet PortStatistics Managing the Spanning Tree Protocol Bridge-wide2Ethernet Port Attributes 3Fast Ethernet Port Characteristics4Ethernet Port Statistics Name Description1Fast Ethernet Port Attributes and Statistics Display Following information for Port #1 is displayedEthernet Port Disable a FastDisplay Broadcast ThrottlingThreshold Enable/DisableBroadcast Throttling 10Task Actions for Fx Port Type 9Task ActionsFast Ethernet Tx port #1 is set to half duplex Example 1 for Tx port typeExample 2 for Fx port type 11Task Actions for Tx Port Type3Bridge Attributes and Statistics Display 13Bridge Attributes and StatisticsBridge-aging UpdateTime Bridge-port4Bridge Attributes and Statistics Display 16Bridge-port Attributes and StatisticsForwarding Display All EntriesDatabase 17 Task Actions5Forwarding Database Display Entries Display LearnedLearning Station Addresses on 19 Task ActionsForwarding Database see Static Addresses on Display Static21Task Actions 22Static Table Fields 23Hexadecimal Codes for Displaying Multiple Bridge Ports Static Addresses Allowed-to Binary TableBridge Ports Hex Value Bridge Ports Hex Value 7Static Table Display Address Block a StaticStatic Forwarding Database of bridge #0, the MAC address Address from FDB Remove a StaticPorts #4 Database see Static Addresses onDisable STP on Display STP EnableAbout the STP enable status see Disabling the STP on Status30Bridge STP Attributes 9Bridge STP Attributes Display STP attributes for bridge #0 is displayed as followsParameters Bridge-wide STPBridge-forward-delay for bridge #0 is set to 1500 secs Update Bridge-forward DelayExample Enter 36Bridge-port STP Attributes STP Attributes10Bridge-port STP Attributes Display Attributes of port #1 of bridge #0 are displayed as followsBridge-path-cost for port #1 of bridge #0 is set to Bridge-path-costManaging ATM Resources Update ATM parametersManage ATM port Manage Bridge ATM addressesEnter 4 Display ATM Port Attributes Statistics2ATM Port Attributes and Statistics 4ATM Address Fields Following sample ATM statistics report is displayedField Description 2ATM Address Display Following is a sample ATM address displayMore information about Traffic Management in the 7600 Card Display TM5Task Actions Toggles TM operation on and off Enable TMTM remote Client Database is displayed as follows Characteristic Range Default Meaning9Task Actions Information see Display TM Clients on Add TM ClientPort Admin Status Enable/Disable ATMUp to enable the ATM port or down to disable the ATM port Selected version is saved in flashContext #0 Event ATM port Link Up Managing LAN Emulation Clients Manage configuration parametersDisplay statistics Manage operational parametersDisplay LEC Update Unknown Unicast-flood- ModeManage data-frame parameters Transmission over an Elan onEnter 5 1 Lecs Information Description 4LEC Configuration and Status InformationLES Information Description BUS Information Description 2LEC Configuration and Status DisplayEnter the bridge number and ATM address or ! to invalidate Update LecsSee LAN Emulation Overview on Elan name for the LEC of bridge #0 is enteredAddress via Ilmi Enable LecsLES address for the LEC of bridge #0 is entered LAN Emulation Overview on10. For more information see LEC Parameters on Operational10LEC Operational Parameters LEC Parameter DescriptionUpdate the LEC operational parameters control-timeout Update LECVCC-timeout-period, aging-time, forward-delay-time Control-timeout parameter in secondsEnter 533 0 Enter 535 0 18Task Actions 19Task Actions Refer to -21. For more information see Emulated LAN Control-frameConnections on 20Task ActionsEnter 54 16CHAPTER 8 Managing LAN Emulation Clients Unicast-flood Update UnknownMode Unknown Unicast Frames onLE flood mode for Bridge #0 is now NotFlood Display Snmp Configuration Update NMS IP Address Setting Network ParametersDisplay Current IP 2IP Configuration InformationIP Address for bridge #0 is updated to Update DefaultDefault Gateway for the specified bridge Default Gateway for bridge #0 is updated toMask Update SubnetDisplay Snmp Traps Update NMS IPManaging System Functions Display Software Resetting systemVersion Manage event messagesDownload Download StatusSoftware from Network From Flash Erase SoftwareSoftware from LocalDisplay Hardware Configuration Set System Current system configuration modeAfter the next reset Forward ModeSet Store-and For descriptions of the timeout parameters Display Timeout9Timeout Parameters Following is a sample timeout parameters report CPI Update Hardware DelaysTimeout Delay Software timeout mechanism Update SoftwareUpdated PasswordWrite-access Event Messages Admin-accessEnter 1 System hardware is reset and device is rebootedIII 7600 Card Capabilities Ethernet OverviewFast Ethernet 10/100 Mbps transmission speed Full or Half Duplex ModeAuto-negotiation 2Cable Support by Transceiver Type 10 or 100 Mbps SpeedTransceiver type Cable type Number Pairs fibers Fast Ethernet Ports 11-6CHAPTER 11 Ethernet Lans and Bridges in the 7600 Card Transparent Bridges Protocol Spanning TreeAddress of a bridge port, called Self Can be defined as followsSpanning Tree Protocol Designated Bridge on a LAN Spanning Tree port selection 3Port-independent Bridge Parameters Parameters in -4 are set for individual bridge ports4Port-dependent bridge parameters 11-12CHAPTER 11 Ethernet Lans and Bridges in the 7600 Card ATM Overview Virtual LansATM Basics Virtual Channels Interface Ilmi Interim LocalLAN Emulation BUS Connections Emulated LANLAN Emulation Control VCCsIllustrates the VCCs active among LAN Emulation Components Elan Name 3LEC Configuration and Status InformationBoth local and remote destination LANs in the ATM network BridgesBridge acts like a standard transparent bridge 2Bridges in the 7600 Card 12-12CHAPTER 12 ATM, LAN EMULATION, and Virtual Lans Bridges in the 7600 Card Entry obtained by Topology flag Aged by 5Unknown Unicast Flooding Mode Unknown unicast flooding modeMode Bridge action Data Transmission over an ElanLEC Parameters Parameter Description Minimum Default MaximumFlush protocol Be set by managementVirtual LANs 12-18CHAPTER 12 ATM, LAN EMULATION, and Virtual Lans Virtual LANs in the 7600 Card 12-20CHAPTER 12 ATM, LAN EMULATION, and Virtual Lans Each vLAN communicates with its server Workgroups6Logical and Physical View of a Network With vLANs Topics are discussed ATM NetworkHow Traffic Management is implemented within the 7600 Card 1Example of a source to destination ABR control loop Management Concepts TrafficThis congestion information Generate backward RM-cellsFunctions TrafficATM technology without having cell loss due to congestion Configuration7600 Card checks connected devices for Traffic Management Found in the connected device13-6CHAPTER 13 Traffic Management in the ATM Network 2Traffic Management control steps As shown. The traffic management is performed as followsProtocols Device ManagementOut-of-Band In-BandLocal Management 27600 Card Administration Console Snmp Agents Bridge MIB AToM MIB LE Client MIB Management Information Bases MIBsInterface Evolution MIB Ncdchass MIB private Security 5Local Management Protocol Access Store-and-Forward Mode TuningCut-Through Mode Timeout TuningCard for extended periods of time. This usually occurs when Terminating them as erred framesConsole Passwords Service ServicesOn-Line Technical 3Com Bulletin BoardPress Enter to see the Ask3Com main menu Table A-2Automated Fax ServiceCountry Fax Number Country Telephone Number Table A-3Telephone SupportTable A-4Network Supplier Support Table A-6Local Access NumbersTable A-5Obtaining an RMA Number Country Telephone Number Fax NumberTroubleshooting Cleaning Dirty Fiber Optic Cables Related Diagnostic Procedures Fast Ethernet Switching Fast Ethernet Card C SpecificationsPhysical InterfacesEnvironmental IndicatorsStandards Compliance Glossary Equipment DCE Interface NNI Point-to-point call Out-of-bandCall ProtocolInterface UNI Numbers IndexBUS Elan LEC ID NNI STP VCC Index