3Com 9000 manual CoreBuilder, Switch Integrated, Fast Setup

Page 39

3

INTEGRATED FAST SETUP

 

 

This chapter describes how to use the Integrated Fast Setup procedure to

 

 

configure the CoreBuilder® 9000 ATM Enterprise Switch, allowing it to

 

 

function in the network.

 

 

 

CoreBuilder 9000

After you have physically connected the CoreBuilder 9000 ATM

ATM Enterprise

Enterprise Switch to your site network devices and power has been

Switch Integrated

applied, you must set some parameters to enable the CoreBuilder 9000

Fast Setup

ATM Enterprise Switch with its attached ATM Interface Modules to

 

 

function in the network.

 

 

The CoreBuilder 9000 ATM Enterprise Switch local management software

 

 

features an Integrated Fast Setup procedure that configures the

 

 

CoreBuilder 9000 ATM Enterprise Switch in one continuous process.

 

 

With Integrated Fast Setup, you can set up the most important system

 

 

parameters that you need to start working right away. The remaining

 

 

 

 

parameters are assigned default values.

 

 

If you are installing the ATM Switch Fabric Module and ATM Interface

 

 

Modules at the same time, you need to perform the Integrated Fast Setup

 

 

procedure only once; all modules will be configured.

Image 39
Contents CoreBuilder ATM Enterprise Switch Management Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Logging Out Management Capabilities Starting Up LMA Access Level LoggingSet Management Configuration to Factory Defaults Reset AllReset Switch 105 116 Update Auto-discovery status 117122 Update Ilmi Channel Polling Interval 123 103 Display Software Versions 104148 134Get ATM Addresses at Port 135 136 Network Prefix Display Network Prefix198 AAL5-Layer Statistics 199 189190 192 ATM-Layer Statistics 193229 Update Startup Delay 223 Lane Version of Switch 224218 222255 Add Elan MAC Address 256 Display Elan ATM Addresses 257 289 Update Elan Response Policy 291Reset LES Configurations 298 252 Display Elan MAC Addresses 254308 Update LEC Elan Join Privilege for Current SessionConfiguring Pnni Nodes 333 Get Number of Nodes 334 306 Display LAN Emulation Statistics358 344 Set Default ATM Address 345343 346 Get Peer Group ID414 Display Summary Address Table 416 389394 407 Display Ptse Node Information 412Menu Index Technical Support ATM Switch Fabric Module Specifications PhysicalAbout this Guide Icon Description ConventionsList conventions that are used throughout this guide Text ConventionsConventions Command Actions Command ResultParameter Format or Range Explains the command descriptions Command Description SectionsKey Section Description CoreBuilder 9000 Documentation Overview Module Quick Start Guides or Getting Started Guides Paper DocumentsAn ATM network Documents on CD-ROMCompliance YearAbout this Guide CoreBuilder ATM Enterprise Switch Characteristics CoreBuilder 9000 ATM Enterprise Switch has two componentsATM Switch Fabric Module The ATM Interface Module Module Type No. of Ports Rate Mbps ATM InterfacesCard Type 3Com Part Number Preventing congestion Handling congestion Mechanisms for Preventing CongestionCall Admission CLP-based Cell Discard Mechanisms for Handling CongestionClassical IP Clip ATM Virtual NetworksSoftware Release Key FeaturesStandards ProtocolsSupported Overview Starting UP Handling Sécurité Précautions deSwitch Fabric ATM ManipulationPoignées d’insertion/d’éjection sont ouvertes Vorkehrungen beim Umgang mit dem Modul CoreBuilder 9000 Enterprise Switch InstallationSwitch Integrated Fast SetupCoreBuilder Sections Integrated Fast Setup Procedure SectionsIntegrated Fast Setup Procedure Navigation Aids Setup Section DescriptionManagement CapabilitiesStarting Up Access Level Privileges Access LevelsLMA Main Menu LMA Menu Structure LMA Menu SystemAt the Platform Configuration Menu prompt, enter At the Switch Setup Menu prompt, enterEntering the Menu Sequence Command Results Entering the Command ParametersPassword in a format of up to eight alphanumeric characters Password again exactly as beforeTo perform this task Type or Press Menu Navigation FunctionsEditing Aids To go Type or PressAutomatic Logout Configuring the Platform Update Admin-access Password Set Password to Factory Default Example Read-access password is updatedWrite-access password is updated Admin-access password is updated Before you enter the new passwordPasswords are reset to their factory values Enter 1 1 1 Following prompt is displayedEnter y to confirm. The following message appears Setting Up for Current IP address is displayed Following message is displayedSIP Set IP Address MNG Management setupSIP IP Setup Next rebootCurrent NMS IP address is displayed SNS Set NMS Address NMS address is updated toNMS NMS Setup Example Enter 1 1Address found in the local IP subnetwork Current default gateway IP address is displayedSuccessfully set for the next reboot GWY Default Gateway SetupSGW Set Default Gateway Default Gateway address wasAddress Current IP subnet mask configuration is displayedSubnet Mask address was successfully MSK Subnet Mask SetupSet for the next reboot SSM Set Subnet MaskEnterprise Switch Community StringCurrent read community string is displayed Update the Read Community String of the CoreBuilder 9000 ATM Update ReadCurrent write community string is displayed ATM Enterprise SwitchUpdate Write Current Ethernet Type configuration is displayed ETH Ethernet Type Setup SET Set Ethernet TypeEth Type was successfully set for Reboot Management Configuration is set to the factory defaultsEnter 1 1 2 Following prompt is displayed Setting the Port Network Connection Type Command Actions UNI Port 1 7.1.2 7.1.3 7.1.4 7.2.1 7.2.2 7.2.3 Enter y to confirm. The following message is displayed Network connection type for port 3.1.2 is updated to UNINNI configuration parameters are reset to UNI for all ports UNI for all ports, and 7 for maximum number of hopsEnter 1 1 3 Following prompt is displayed Enter 1 2 Following messages are displayed Resetting AllCoreBuilder 9000 ATM Enterprise Switch ParametersEnter 1 Following message is displayed ParametersDisplay Software Download Status Command ActionsDownloading System SoftwareMessage Meaning and Action Download MessagesEnter 1 3 Following prompts are displayed Download procedureLoad Modes Load Mode DescriptionConfiguration is uploaded to the host Host Enter 1 3 Following message is displayed Managing Switch Fabric ModulesModule Status Switch Fabric Module Parameters Switch Fabric Module ParametersName Description Enter 1 4 Following prompt is displayed Switch is rebooted and the following messages are displayedReset Standby Switch Reset the standby switch fabric module Fabric Module Command ActionsEnter 1 4 3 Following prompt is displayed Mode Command Actions Direct access sequence 1 4 3 3 Module Information ConfiguringInterface Modules Display InterfaceParameter Description Interface Module Slot Occupancy ParametersExample for the 16-slot chassis and 7-slot chassis Slot ID ParametersInterface Parameters Interface Card ParametersOC3-SC Selected ports are set and saved Enter 1 5 3 5.1.1 Following messages are displayedEnter 1 5 4 1.1.2 Following message is displayed Clock operational mode of port 1.1.2 is set to loop timingEnter 1 5 5 1.1.2 Following messages are displayed Loop mode of port 1.1.2 is set to Loop backIFC Interface Cards RST Reset Interface CardInterface card was reset Enter 1 5 6 Following prompt is displayedEnter System is logged out Logging Out and RebootingEnter 1 Following prompt is displayed Reboot Reboot the system Command ActionsParameter Format or Range Confirm reboot Reboots the ATM Enterprise SwitchDirect access sequence 1 ATM Features Display ATM FeaturesSoftware Versions Latest software version numbers Display Lecs ATM Address Update Lecs ATM Address Active Lecs addraddress SLE LE SetupLCS Lecs Setup SLA Set Active Lecs ATM AddrStatus Setting UpSwitch Clock Source Get Clock SourceCannot be used as an external clock source port SourceSP2 Set External Clock Source Enter 1 8 Following prompt is displayed Internal Command ActionsIlmi Setup Ilmi version is 3.0/3.1/4.0 IME Ilmi SetupVER Ilmi Version Setup GET Get Ilmi VersionSET Set & Save Ilmi Version Ilmi version of port 3.1.2 is updated toIlmi version is reconfigured Example EnterEnter 1 1 8 2 1 Auto-configuration status of port 3.1.2 is enabled AUD Auto-Discovery Setup SET Set & Save Auto-Discovery ON/OFF Status MIB Ilmi MIB View SetupLecs via Ilmi is ENABLED/DISABLED GET Get Lecs via IlmiLECS-via-ILMI status of port 3.1.2 is enabled Enter 1 1 8 4 1 8 4 VPI/VCI = 0/16 is periodically polled for connectivity Enter 1 1 8 4 4 3.1.2 ATM Addresses Port Display UserAddresses at Port Enter the menu sequence 3 CON Connections Enter 3 1 1 Describes the UME parameters displayed by the command UME ParametersUME Parameters At Port CON ConnectionsADD Get ATM Addresses STC Get Static and NNI AddressesParameters Describes the parameters displayed by the commandPort Command Actions Parameters Enter 3 4 2 1 ADD Add ATM Address C Setup of Connections and ATMSTP Static ATM Addresses Setup AddressesDEL Delete ATM Address ATM address member n was deleted fromPort Enter 3 4 2 4 Enter 3 4 2 Following prompt is displayed Network Prefix Display NetworkPrefix Managing Network Interfaces Signaling Setup Signaling Timers Configuring Virtual ChannelsConfiguring Virtual Channels RTG Routing CLL Calls Example Display Info for a Specific SVC Call Example Display all SVC Calls for an ATM address memberExample Display all PVC Calls for a Port Two additional destinationsWith two additional destinations Shows the call parameters displayed by the command Call ParametersCall Parameters Display Port Connections Example Display all Connections at a Port Example Display Info for a Connection at a Port Port SVC Connection ParametersPort SVC Connection Parameters PRT ATM ports Port Static Connection Parameters Port Static Connection ParametersConnections Command Actions Create Permanent Virtual Channel PVC Enter 3 4 1 Following information is displayed Create Permanent Virtual Channel PVC Direct access sequence 3 4 1 2 parameters Full PVC Call Parameters Enter 3 4 1 3 p2p 5.1.1 0 37 5.1.2 0 You cannot add an additional PVC destination to a P2P PVC You cannot release SVCs with this menu Parameter Example Enter 3 4 GEP Display PVCs PVC PVCs SetupEnter y to confirm, n to cancel Following message appears Following prompt appearsAll inactive PVCs are deleted from the flash memory All PVCs of the specific port are deleted Connections of Port Command ActionsNNI Hops Setup Display MaximumNNI Hops Maximum NNI Hops parameter is updated to Signaling Setup SIG Signaling Setup VCC VPI/VCI range setupGET Get VPI/VCI range Following information is displayed for an OC-12c port Following information is displayed for an OC-3c portInformation, see Display VPI/VCI Range on Maximum VPI for port 3.1.2 is updated to Protocol Profile Enter 1 1 4 5 Enter 1 1 4 5 2 3.1.2 Following information is displayed Protocol Version Parameters Protocol Version ParametersEnter 1 1 4 5 4 3.1.2 Display the value of the call-proceeding enable value Display Call-Proceeding Enable ValueEnter 1 1 Following message appears Enable Value Command ActionsEnter 1 1 4 Following prompt appears Enter Y to confirm, N to cancelProtocol timers Half. For more information, see Timer Resolution on page 98Response is overdue Enter 1 1 4 1 Timer resolution was successfully set Timer resolution is updated to 250 msec and saved to flashRES Timer Resolution setup SET Set Timer ResolutionParameter Format or Range Port number Slot.group.port 4 2 parametersDisplayed in seconds Enter 1 1 4 2 QSA Get Signaling Qsaal Sscop TimersShows the Sscop Timers displayed by the command Sscop TimersSscop Configuration Parameters Sscop Configuration ParametersEnter 1 1 4 4 Configuring Virtual Channels Statistics Physical LayerEnter 4 1 1 Statistic Physical Layer StatisticsPhysical statistics are reset for port Statistics Command ActionsATM-Layer Statistics Reset Counters Per Port Reset Counters Per VPI/VCIEnter 4 2 Following information is displayed Example Enter 4 2 Following information is displayed Enter 4 2 3 1.1.1 3 ATM ATM layer ATM Counters for the specified port are reset toRPR Reset counters per port Reset ATM counters completedPerform menu item 3CON\2RTG\1CLL to Counters are resetDisplay AAL-Layer Statistics Reset AAL-Layer Statistics AAL5-Layer StatisticsYou can display the following AAL5-layer statistics SAR Counters Enter 4 3 Following information is displayedEnter 4 3 Following message is displayed You can display the following AAL5 control statistics AAL5 Control Frame Port StatisticsEnter 4 4 1 AAL5-layer control statistics are reset for port Port Statistics Command ActionsYou can display the following signaling statistics Signaling Protocol StatisticsEnter 4 5 1 Signaling statistics are reset for port Counters Command ActionsViewing Statistics Managing LAN Emulation Learp Policy Configuration LEC OperationsLAN Emulation Services SetupStatus Command Actions 5 1 LE service status will be Disabled on the next reboot Direct access sequence 1 1 5 2 Lecs service status is set for the next reboot Lecs is disabled LAN Emulation Redundancy Setup Enter 1 1 5 3 AOL Add to Lecs ordered list SYS Platform configLecs is entered into the LECS-order database LOL Lecs ordered listLecs with index 2 is removed from the LECS-order database DOL Del from Lecs ordered listRedundant Lecs deleted LES Redundancy Parameters LES Redundancy ParametersRedundancy Mode Redundant Lane Services on page 137 in the Operations GuideRDN LE Service redundancy setup LRM Change LE Service600 LRD Set LE Service redundancyStartup delay Startup Delay ChangedNot to a specific Elan Get Switch LaneVersion Command Actions Lane VersionLane version of the switch is changed That join after the changeParameter Format or Range Lane version Display Current MPS ConfigurationConfiguration Command Actions Mpoa DevicesVariable Name Description Mpoa Server Configuration ParametersDescribes the Mpoa Server configuration parameters Mpoa Server Configuration ParametersEnter 2 5 1 2 Set Keep-AliveSets the MPS-p2 keep-alive lifetime parameter Lifetime Command ActionsProtocols Layer Protocols Command ActionsSet Internetwork Sets the MPS-p3 protocols parameter Parameter Format or Range Internetwork-layerMP4 Set initial retry time MPA Mpoa Devices ConfigurationMPS Mpoa Server Configuration LEM LAN Emulation10 300 seconds Maximum Command ActionsSet Retry Time Sets the MPS-p5 retry time maximum parameter MP5 Set retry time maximumSet Give Up Time Sets the MPS-p6 give-up time parameter MP7 Set default holding time Time Command ActionsEnter 2 5 2 Following information is displayed Mpoa Client Configuration Parameters Describes the Mpoa Client configuration parametersMpoa Client Configuration Parameters MPC Mpoa Client Configuration Frame Count Command ActionsFrame Time Command Actions Protocols Command Actions Parameter Format or Range Flow detection protocolsFlow detection protocols parameter is set Command Result Set Retry Time Sets the MPC-p5 retry time maximum parameter Set Hold Down Time Sets the MPS-p6 hold down time parameter MP6 Set hold down time30 1200 seconds Display Resident Lecs Address You can configure the resident Lecs address as followsUpdate Resident Lecs Address Lecs AddressAddress Command Actions LSP Set resident Lecs addr Bytes. The update takes place immediatelyResident Lecs address is updated LCS LE Config ServiceCommand Actions Enter 2 1 Search policy of the resident Lecs is displayed Database Operations Lecs ElanElan LES Parameters Describes the Elan LES parametersElan LES Parameters LEP Display Elan type & params Database Command ActionsLCS LE Configuration Service LNT Lecs network topologyElan Parameters in Lecs Database Database that you can updateElan Parameters in Lecs Database Describes the Elan parameters in the Lecs databaseEnter 2 1 5 3 elan6914 1 Addresses Command Actions MAC MAC Addresses InfoMAD Display all MAC addresses DEL Delete MAC Address Delete Elan MAC Delete a MAC address inserted from an ElanSpecified MAC address is deleted from the Elan MAC MAC Address InfoConsole responds with the confirmation AAD Display all ATM addresses ATM ATM Address InfoSpecified ATM address is deleted from the Elan ATM ATM Addresses InfoATM address was deleted for this elan System responds with the confirmation New elan was added ANE Add new Elan recordEnter 2 1 5 Confirmation message is displayed DEL Delete Elan recor dElan record was deleted SEG Edit segment id C23, for Segment id has been updatedYou cannot assign a segment ID to a non-token ring Elan Segment ID is added to the Lecs databaseDescribes the Lecs statistics parameters Signaling Statistics ParametersDescribes the signaling statistics parameters Lecs Statistics ParametersEnter 2 1 Lecs database statistics are displayed Enter 2 1 Following prompt is displayed Display Lecs Maximum Connection Number Shows how many LECs the Lecs database may containEnter 2 1 8 Following message is displayed Connections Update Lecs Maximum Connection NumberSets the number of LECs the Lecs database may contain Number of LecsLAN Emulation Redundancy Redundant LES successfully added RDN LE Service redundancyALS Add redundant LES to ElanEnter 2 1 5 9 2 elan739 FEP Force Elan to Primary Enter 2 1 5 9 3 elan739 Display general information about redundant ELANs Display Redundant ELANs General InformationRedundant ELANs General Parameters Describes the ELANs general parametersRedundant ELANs General Parameters Display specific information about Redundant ELANs Display Redundant ELANs Specific InformationRedundant ELANs Specific Parameters Describes the ELANs specific parametersRedundant ELANs Specific Parameters Describes the redundant LES general parameters LES General Command Actions InformationDisplay general information on a redundant LES Redundant LES General ParametersEnter 2 1 Following information is displayed LES Specific Information Command ActionsLES Display LES-BUS You can configure the LES address, as followsUpdate Elan LES-BUS Address Display LES-BUS AddressesEnter 2 2 Following information is displayed Enter 2 2 3 1 1 2 c0.da.60 .49 Direct access sequence 2 2 Enter 2 2 Following information is displayed Elan Parameters for Resident LESs Elan Parameters for Resident LESsDescribes the Elan parameters for resident LESs Elan #4 is of Token Ring typeDatabase Elan Parameters for a LES Parameters of the Elan with ID 14 are updatedDescribes the Elan parameters that can be updated Elan Parameters for a LESDisplay Elan Response Policy Learp Policy ConfigurationElan Response Policies Describes the Elan response policiesElan Response Policies Enter 2 2 Following messages are displayed Possible Learp policies Learp Verification Policies Learp Verification PoliciesDescribes the Learp verification policies Learp policiesEnter 2 2 3 1 5 2 Managing LAN Emulation Learp Policies for Route Descriptor Example Enter 2 2Learp Policies for Route Descriptor Describes the Learp policies for the route descriptorEnter 2 2 3 1 7 2 Following prompt appear Response policy, and Learp response policiesDirect access sequence 2 2 3 1 Enter 2 2 Following message appears Update Lane Multicast Forward DelayUpdate the Lane multicast forward delay parameter Lane multicast forward delay time is updatedLEC Operations Display LECConnection Info LEC Connection Information LEC Connection Information ParametersADD Clients MAC Addresses Lecid Display LAN Emulation Statistics Command ActionsEnter 2 2 3 4 1 Enter 2 2 3 4 2 2 NameDescription LEC StatisticsDescribes the LEC statistics parameters LEC StatisticsStatistics LES LE ServicesRES Reset General LE ELN ELANs InformationEnter 2 2 3 Following message is displayed DSL Destroy specific LEC Enter 2 2 5 Following prompt appears Enter Y to confirm, N to cancel the reset requestManaging LAN Emulation LEC Elan Admission Security Enter 2 3 1 1 Enter 2 3 1 2 1 LECs in Elan Security ListSecurity List Enter 2 3 2 1 Session Command to initialize the Elan security list Enter 2 3 2 4 1 47.0.0.0.0.0.3c.0.0.a0 Enter Y to continue, N to cancel Enter 2 3 2 6 1 CHK Perform a security check Switch Security Display SwitchSecurity Status Command Actions Security on switch now Enabled SEC LE Security ConfigurationSWS Switch security SST Set switch security stateRestore Security Configuration Save SecuritySave Security Direct access sequence 2 3 LEC Elan Admission Security Pnni Configuring the Route Cache Showing Pnni InformationDisplay PNNI/E-IISP State Following command allows you to view the current Pnni stateViewing Current Pnni StateNodes Configuring PnniEnter 1 1 9 4 1 State Operations Guide for more information on E.164 Enter 1 1 Following message is displayed 196 in the Operations Guide for more information on E.164Enter 1 1 9 4 3 1 Enter 1 1 9 4 3 2 Pnni node administrative status is set to UP To UP Command ActionsPnni node administrative status is set to Down To Down reboot Command ActionsPDB Purge whole Pnni Enter 1 1 9 4 3 3 1 Node level of node 1 is set to Following message is 7displayed3 3 2 Default ATM address takes place after the next reboot 9 4 3 3 2 3 parameters Address is updated to its new value 9 4 3 3 3 3 3 3 9 4 3 3 4 3 3 4 SID Set Node ID Node ID is updated to its new value 3 3 5 Name of the node is updated to 3Com World 9 4 3 3 6 9 4 3 3 6 2 parameters Configuring and Managing Pnni 9 4 3 4 1 parameters 9 4 3 4 2 parameters 9 4 3 4 3 parameters 9 4 3 4 4 parameters 9 4 3 4 5 parameters 9 4 3 4 6 parameters Interval takes place after the next reboot 9 4 3 4 8 parameters 9 4 3 4 9 parameters 9 4 3 4 10 parameters 9 4 3 4 11 parameters 9 4 3 4 12 parameters 9 4 3 4 13 parameters Enter 1 1 9 4 3 4 14 Enter 1 1 9 4 3 4 15 Enter 1 1 9 4 3 4 16 All the timers are set to the default values Default Values Command ActionsSetting Optimization Metrics Optimization Metrics Table Parameters Classes of ServiceValue Description Optimization ValuesValue of the CBR optimization parameter is updated Value of the RealTime-VBR optimization parameter is updated 9 4 3 5 2 3 parameters 9 4 3 5 2 4 parameters Value of the UBR optimization parameter is updated to All Classes to Default Command Actions Parameter Format or Range Port number Slot.subslot.port Select Port for Interface Parameter SettingConfiguring and Managing Pnni 9 4 4 2 1 parameters Weight bit rate service category 9 4 4 2 3 parameters 9 4 4 2 4 parameters 9 4 4 2 5 parameters Weight unspecified bit rate service category 9 4 4 2 To Default Values Command Actions Pnni Scope Managing Scope MappingScope Mapping Table Parameters Scope Mapping Table ParametersPnniScopeLocalNetworkPlusTwo Enter 1 1 Following information is displayed MST Modify Scope Mapping Hierarchical level of pnniScopeGlobal is updated to After the next reboot Get Cache State Configuring the Route CacheSCS Set Cache State Will continue to be used when an ADD Party route is added 11 1 9 10 4 6 After this number of calls, the cache will be refreshed 9 4 6 6 parameters Display All PTSEs Following commands allow you to display Ptse and other PnniShowing Pnni InformationPtse Table Parameters Node Topology Link Section Ptse Table ParametersPtse Table Parameters Node Address Section Ptse Table Parameters Statistics Section Enter 1 1 9 4 7 Node Ptse Table Parameters Information Command ActionsExample Topology Link Ptse Table Parameters Example Summary Address Table Parameters Address Table Command ActionsNode Address Ptse Table Parameters Example Peer Group Leader Table Parameters Peer Group Leader Table ParametersEnter 1 1 Following information is displayed Peer Group Neighbor Table Parameters Neighbor Information Command ActionsStatistics Table Parameters Information node is up Command ActionsSafety PhysicalEnvironmental Interface LEDs ConnectorsElectromagnetic Compatibility Standards SupportedMenu Index Management Setup182 164165 180176 171173 174114 137112 113108 102101 107253 249250 251283 266267 280314 310286 311231 228229 230157 151153 156204 199201 202334 330332 333355 352353 354379 375377 378401 398399 400Appendix B Menu Index 3Com ServicesServices Online TechnicalCountry Data Rate Telephone Number Access by Analog ModemUsername anonymous Hours a day, 7 days a weekAccess by Digital Modem 847 262408 727 Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle EastCountry Telephone Number Fax Number Appendix C Technical Support Module GlossaryApplication LMA Software LEDMultiplexing Indicator LEDSoftware Error LED Module Status LEDGlossary Numbers IndexCall admission control 28 call-proceeding enable value Efci site marking 28 Elan emulated LAN Learp MIB II Pnni Ptse Storage humidity 421 subnet mask configuration Displaying 66 write-access password updating Index 3Com Corporation Limited Warranty Additional Services
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