Card Type 3Com Part Number | 3Com 9000 specification

CoreBuilder 9000 ATM Enterprise Switch Characteristics 27

The OC-3c/STM-1 and OC-12c/STM-4 daughter cards are available in single-modeor multi-mode. An OC-3c/STM-1 card is available with three single-mode ports and one multi-mode port.

You can install up to 11 ATM Interface Modules in the 16-slot chassis and up to 5 ATM Interface Modules in the 7-slot chassis and the 8-slot chassis. You can order the ATM Interface Modules as a kit with daughter cards included or, you can order individual daughter cards separately.

Table 5 lists the available configurations of the ATM Interface Module and the daughter cards along with their part numbers.

Table 5 Daughter Cards Compatible with the ATM Interface Carrier Module

Card Type	3Com Part Number

OC-3c-MMF1	3CB9NAL4MC
OC-3c-SMF2	3CB9NAL4SC
OC-3c-SMLR3	3CB9NAL2SCLR
OC-12c-MMF	3CB9NAK1MC

OC-12c-SMF	3CB9NAK1SC

155 Mbps-over-UTP5	3CB9NAL4R

1MMF=Multi-Mode Fiber

2SMF=Single-Mode Fiber

3SMLR=Single-Mode Long Reach

Processors An on-board i960 processor handles all advanced software features including SVC (Switched Virtual Circuit), signalling PNNI (Private Network Node Interface), and SNMP (Simple Network Management Protocol) management.

Image 27

3Com 9000 manual Card Type 3Com Part Number

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 Logging Set 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 104 148 134Get ATM Addresses at Port 135 136 Network Prefix Display Network Prefix 198 AAL5-Layer Statistics 199 189190 192 ATM-Layer Statistics 193 229 Update Startup Delay 223 Lane Version of Switch 224218 222 255 Add Elan MAC Address 256 Display Elan ATM Addresses 257 289 Update Elan Response Policy 291Reset LES Configurations 298 252 Display Elan MAC Addresses 254 308 Update LEC Elan Join Privilege for Current SessionConfiguring Pnni Nodes 333 Get Number of Nodes 334 306 Display LAN Emulation Statistics 358 344 Set Default ATM Address 345343 346 Get Peer Group ID 414 Display Summary Address Table 416 389394 407 Display Ptse Node Information 412 Menu Index Technical Support ATM Switch Fabric Module Specifications Physical About this Guide Icon Description ConventionsList conventions that are used throughout this guide Text Conventions Conventions 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 Documents An ATM network Documents on CD-ROM Compliance Year About 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 Interfaces Card Type 3Com Part Number Preventing congestion Handling congestion Mechanisms for Preventing Congestion Call Admission CLP-based Cell Discard Mechanisms for Handling CongestionClassical IP Clip ATM Virtual Networks Software Release Key Features Standards ProtocolsSupported Overview Starting UP Handling Sécurité Précautions de Switch Fabric ATM ManipulationPoignées d’insertion/d’éjection sont ouvertes Vorkehrungen beim Umgang mit dem Modul CoreBuilder 9000 Enterprise Switch Installation Switch Integrated Fast SetupCoreBuilder Sections Integrated Fast Setup Procedure SectionsIntegrated Fast Setup Procedure Navigation Aids Setup Section Description Management CapabilitiesStarting Up Access Level Privileges Access Levels LMA Main Menu LMA Menu Structure LMA Menu System At 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 before To perform this task Type or Press Menu Navigation FunctionsEditing Aids To go Type or Press Automatic Logout Configuring the Platform Update Admin-access Password Set Password to Factory Default Example Read-access password is updated Write-access password is updated Admin-access password is updated Before you enter the new password Passwords 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 displayed SIP Set IP Address MNG Management setupSIP IP Setup Next reboot Current NMS IP address is displayed SNS Set NMS Address NMS address is updated toNMS NMS Setup Example Enter 1 1 Address found in the local IP subnetwork Current default gateway IP address is displayed Successfully set for the next reboot GWY Default Gateway SetupSGW Set Default Gateway Default Gateway address was Address Current IP subnet mask configuration is displayed Subnet Mask address was successfully MSK Subnet Mask SetupSet for the next reboot SSM Set Subnet Mask Enterprise Switch Community StringCurrent read community string is displayed Update the Read Community String of the CoreBuilder 9000 ATM Update Read Current write community string is displayed ATM Enterprise Switch Update 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 UNI NNI 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 Parameters Enter 1 Following message is displayed Parameters Display Software Download Status Command ActionsDownloading System Software Message Meaning and Action Download Messages Enter 1 3 Following prompts are displayed Download procedure Load Modes Load Mode Description Configuration 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 displayed Reset 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 Interface Parameter Description Interface Module Slot Occupancy ParametersExample for the 16-slot chassis and 7-slot chassis Slot ID Parameters Interface Parameters Interface Card Parameters OC3-SC Selected ports are set and saved Enter 1 5 3 5.1.1 Following messages are displayed Enter 1 5 4 1.1.2 Following message is displayed Clock operational mode of port 1.1.2 is set to loop timing Enter 1 5 5 1.1.2 Following messages are displayed Loop mode of port 1.1.2 is set to Loop back IFC Interface Cards RST Reset Interface CardInterface card was reset Enter 1 5 6 Following prompt is displayed Enter System is logged out Logging Out and Rebooting Enter 1 Following prompt is displayed Reboot Reboot the system Command ActionsParameter Format or Range Confirm reboot Reboots the ATM Enterprise Switch Direct 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 Addr Status Setting UpSwitch Clock Source Get Clock Source Cannot be used as an external clock source port Source SP2 Set External Clock Source Enter 1 8 Following prompt is displayed Internal Command Actions Ilmi Setup Ilmi version is 3.0/3.1/4.0 IME Ilmi SetupVER Ilmi Version Setup GET Get Ilmi Version SET Set & Save Ilmi Version Ilmi version of port 3.1.2 is updated toIlmi version is reconfigured Example Enter Enter 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 Ilmi LECS-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 Addresses Parameters Describes the parameters displayed by the command Port Command Actions Parameters Enter 3 4 2 1 ADD Add ATM Address C Setup of Connections and ATMSTP Static ATM Addresses Setup Addresses DEL 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 Channels Configuring Virtual Channels RTG Routing CLL Calls Example Display Info for a Specific SVC Call Example Display all SVC Calls for an ATM address member Example 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 Parameters Connections 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 Setup Enter 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 Actions NNI 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 port Information, 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 Parameters Enter 1 1 4 5 4 3.1.2 Display the value of the call-proceeding enable value Display Call-Proceeding Enable Value Enter 1 1 Following message appears Enable Value Command Actions Enter 1 1 4 Following prompt appears Enter Y to confirm, N to cancel Protocol 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 Resolution Parameter 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 Timers Sscop Configuration Parameters Sscop Configuration Parameters Enter 1 1 4 4 Configuring Virtual Channels Statistics Physical Layer Enter 4 1 1 Statistic Physical Layer Statistics Physical statistics are reset for port Statistics Command Actions ATM-Layer Statistics Reset Counters Per Port Reset Counters Per VPI/VCI Enter 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 completed Perform menu item 3CON\2RTG\1CLL to Counters are reset Display 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 displayed Enter 4 3 Following message is displayed You can display the following AAL5 control statistics AAL5 Control Frame Port Statistics Enter 4 4 1 AAL5-layer control statistics are reset for port Port Statistics Command Actions You can display the following signaling statistics Signaling Protocol Statistics Enter 4 5 1 Signaling statistics are reset for port Counters Command Actions Viewing Statistics Managing LAN Emulation Learp Policy Configuration LEC Operations LAN Emulation Services Setup Status 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 list Lecs with index 2 is removed from the LECS-order database DOL Del from Lecs ordered listRedundant Lecs deleted LES Redundancy Parameters LES Redundancy Parameters Redundancy Mode Redundant Lane Services on page 137 in the Operations GuideRDN LE Service redundancy setup LRM Change LE Service 600 LRD Set LE Service redundancyStartup delay Startup Delay Changed Not to a specific Elan Get Switch LaneVersion Command Actions Lane Version Lane version of the switch is changed That join after the changeParameter Format or Range Lane version Display Current MPS ConfigurationConfiguration Command Actions Mpoa Devices Variable Name Description Mpoa Server Configuration ParametersDescribes the Mpoa Server configuration parameters Mpoa Server Configuration Parameters Enter 2 5 1 2 Set Keep-AliveSets the MPS-p2 keep-alive lifetime parameter Lifetime Command Actions Protocols Layer Protocols Command ActionsSet Internetwork Sets the MPS-p3 protocols parameter Parameter Format or Range Internetwork-layer MP4 Set initial retry time MPA Mpoa Devices ConfigurationMPS Mpoa Server Configuration LEM LAN Emulation 10 300 seconds Maximum Command ActionsSet Retry Time Sets the MPS-p5 retry time maximum parameter MP5 Set retry time maximum Set Give Up Time Sets the MPS-p6 give-up time parameter MP7 Set default holding time Time Command Actions Enter 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 Actions Frame 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 Address Address Command Actions LSP Set resident Lecs addr Bytes. The update takes place immediatelyResident Lecs address is updated LCS LE Config Service Command Actions Enter 2 1 Search policy of the resident Lecs is displayed Database Operations Lecs Elan Elan LES Parameters Describes the Elan LES parametersElan LES Parameters LEP Display Elan type & params Database Command ActionsLCS LE Configuration Service LNT Lecs network topology Elan Parameters in Lecs Database Database that you can updateElan Parameters in Lecs Database Describes the Elan parameters in the Lecs database Enter 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 Info Console responds with the confirmation AAD Display all ATM addresses ATM ATM Address Info Specified 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 record Enter 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 database Describes the Lecs statistics parameters Signaling Statistics ParametersDescribes the signaling statistics parameters Lecs Statistics Parameters Enter 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 Lecs LAN Emulation Redundancy Redundant LES successfully added RDN LE Service redundancyALS Add redundant LES to Elan Enter 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 Information Redundant ELANs General Parameters Describes the ELANs general parametersRedundant ELANs General Parameters Display specific information about Redundant ELANs Display Redundant ELANs Specific Information Redundant 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 Parameters Enter 2 1 Following information is displayed LES Specific Information Command Actions LES Display LES-BUS You can configure the LES address, as followsUpdate Elan LES-BUS Address Display LES-BUS Addresses Enter 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 type Database 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 LES Display Elan Response Policy Learp Policy Configuration Elan 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 policies Enter 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 descriptor Enter 2 2 3 1 7 2 Following prompt appear Response policy, and Learp response policies Direct 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 updated LEC Operations Display LECConnection Info LEC Connection Information LEC Connection Information Parameters ADD Clients MAC Addresses Lecid Display LAN Emulation Statistics Command Actions Enter 2 2 3 4 1 Enter 2 2 3 4 2 2 NameDescription LEC StatisticsDescribes the LEC statistics parameters LEC Statistics Statistics LES LE ServicesRES Reset General LE ELN ELANs Information Enter 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 request Managing 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 state Restore Security Configuration Save SecuritySave Security Direct access sequence 2 3 LEC Elan Admission Security Pnni Configuring the Route Cache Showing Pnni Information Display PNNI/E-IISP State Following command allows you to view the current Pnni stateViewing Current Pnni State Nodes Configuring Pnni Enter 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.164 Enter 1 1 9 4 3 1 Enter 1 1 9 4 3 2 Pnni node administrative status is set to UP To UP Command Actions Pnni node administrative status is set to Down To Down reboot Command Actions PDB Purge whole Pnni Enter 1 1 9 4 3 3 1 Node level of node 1 is set to Following message is 7displayed 3 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 Actions Setting Optimization Metrics Optimization Metrics Table Parameters Classes of Service Value Description Optimization Values Value 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 Setting Configuring 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 Parameters PnniScopeLocalNetworkPlusTwo 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 Cache SCS 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 Information Ptse Table Parameters Node Topology Link Section Ptse Table Parameters Ptse Table Parameters Node Address Section Ptse Table Parameters Statistics Section Enter 1 1 9 4 7 Node Ptse Table Parameters Information Command Actions Example Topology Link Ptse Table Parameters Example Summary Address Table Parameters Address Table Command Actions Node Address Ptse Table Parameters Example Peer Group Leader Table Parameters Peer Group Leader Table Parameters Enter 1 1 Following information is displayed Peer Group Neighbor Table Parameters Neighbor Information Command Actions Statistics Table Parameters Information node is up Command Actions Safety PhysicalEnvironmental Interface LEDs ConnectorsElectromagnetic Compatibility Standards Supported Menu Index Management Setup 182 164165 180 176 171173 174 114 137112 113 108 102101 107 253 249250 251 283 266267 280 314 310286 311 231 228229 230 157 151153 156 204 199201 202 334 330332 333 355 352353 354 379 375377 378 401 398399 400 Appendix B Menu Index 3Com ServicesServices Online Technical Country Data Rate Telephone Number Access by Analog ModemUsername anonymous Hours a day, 7 days a week Access by Digital Modem 847 262408 727 Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle East Country Telephone Number Fax Number Appendix C Technical Support Module Glossary Application LMA Software LED Multiplexing Indicator LEDSoftware Error LED Module Status LED Glossary Numbers Index Call 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