用户手册 (3CR17341-91-ME)目录3Com® Switch 4210 Family Configuration Guide1Contents3About This Guide11Conventions11Related Documentation12CLI Configuration13Introduction to the CLI13Command Hierarchy13Switching User Levels14Setting the Level of a Command in a Specific View15CLI Views16CLI Features18Online Help18Terminal Display19Command History19Error Prompts20Command Edit20Logging into an Ethernet Switch23Supported User Interfaces23User Interface Index23Common User Interface Configuration24Logging in through the Console Port25Common Configurations28Console Port Login Configurations for Different Authentication Modes28Configuring Console Port Login with no Authentication29Configuration Example31Configuring Console Port Login to Require a Password33Configuration Example34Console Port Login Configuration with Authentication Mode Being Scheme36Configuration Example38Logging in through Telnet39Common Configuration40Telnet Configurations for Different Authentication Modes40Telnet Configuration without Authentication41Configuration Example42Telnet Configuration with Authentication Requiring a Password44Configuration Example45Telnet Configuration with Authentication Mode Being Scheme46Configuration Example50Telnetting to a Switch51Logging in Using a Modem54Configuring the Switch54Establishin a Modem Connection55Logging in through the Web-based Network Management System58Establishing an HTTP Connection58Configuring the Login Banner59Configuration Example59Enabling/Disabling the WEB Server60Managing from an NMS61User Control62Controlling Telnet Users62Configuration Example64Controlling Network Management Users by Source IP Addresses64Configuration Example66Controlling Web Users by Source IP Address66Configuration Example67Configuration File Management69Introduction to Configuration File69Management of Configuration File70Saving the Current Configuration70Erasing the Startup Configuration File71Specifying a Configuration File for the Next Startup72Displaying Device Configuration72VLAN Overview75VLAN Overview75Introduction to VLAN75Advantages of VLANs76VLAN Principles76VLAN Classification78Port-Based VLAN78VLAN Configuration79VLAN Configuration79VLAN Configuration Tasks79Basic VLAN Configuration79Basic VLAN Interface Configuration80Displaying VLAN Configuration80Configuring a Port-Based VLAN81Configuring a Port-Based VLAN81Port-Based VLAN Configuration Example81Managing the VLAN85VLAN Overview85Static Route85Default Route85Configuring VLAN Management86Overviw86Configuration Example86Displaying and Maintaining management VLAN configuration88IP Addressing Configuration89IP Addressing Overview89IP Address Classes89Special Case IP Addresses90Subnetting and Masking90Configuring IP Addresses91Displaying IP Addressing Configuration92IP Address Configuration Examples92IP Address Configuration Example I92IP Performance Configuration93IP Performance Overview93Introduction to IP Performance Configuration93Introduction to the Forwarding Table93Configuring IP Performance93Introduction to IP Performance Configuration Tasks93Configuring TCP Attributes93Disabling ICMP to Send Error Packets94Displaying and Maintaining IP Performance Configuration95Port Basic Configuration97Ethernet Port Overview97Link Types of Ethernet Ports97Configuring the Default VLAN ID for an Ethernet Port97Adding an Ethernet Port to Specified VLANs98Ethernet Port Configuration98Initially Configuring a Port98Configuring Port Auto-Negotiation Speed99Limiting Traffic on individual Ports100Enabling Flow Control on a Port100Configuring an Access Port101Configuring a Hybrid Port101Configuring a Trunk Port102Duplicating the Configuration of a Port to Other Ports102Configuring Loopback Detection for an Ethernet Port102Enabling Loopback Test103Enabling the System to Test a Connected Cable104Configuring the Interval to Perform Statistical Analysis on Port Traffic104Disabling Up/Down Log Output on a Port105Disable Up/Down log output on a port105Configuration example105Displaying and Maintaining Basic Port Configuration106Ethernet Port Configuration Example106Troubleshooting Ethernet Port Configuration107Link Aggregation Configuration109Overview109Introduction to Link Aggregation109Introduction to LACP109Requirements on Ports for Link Aggregation109Link Aggregation Classification110Manual Aggregation Group110Static LACP Aggregation Group110Dynamic LACP Aggregation Group111Aggregation Group Categories112Link Aggregation Configuration113Configuring a Manual Aggregation Group114Configuring a Static LACP Aggregation Group114Configuring a Dynamic LACP Aggregation Group115Configuring a Description for an Aggregation Group115Displaying and Maintaining Link Aggregation Configuration116Link Aggregation Configuration Example116Ethernet Port Aggregation Configuration Example116Port Isolation Configuration119Port Isolation Overview119Port Isolation Configuration119Displaying Port Isolation Configuration120Port Isolation Configuration Example120Port Security Configuration123Port Security Overview123Introduction123Port Security Features123Port Security Modes123Port Security Configuration126Enabling Port Security127Setting the Maximum Number of MAC Addresses Allowed on a Port127Setting the Port Security Mode128Configuring Port Security Features129Ignoring the Authorization Information from the RADIUS Server130Configuring Security MAC Addresses130Displaying Port Security Configuration131Port Security Configuration Example131Port Security Configuration Example131MAC Address Table Management133Introduction to the MAC Address Table133Managing MAC Address Table135Configuring MAC Address Table Management136MAC Address Table Management Configuration Tasks136Configuring a MAC Address Entry137Setting the Aging Time of MAC Address Entries137Setting the Maximum Number of MAC Addresses a Port Can Learn138Displaying MAC Address Table Information138Configuration Example139Adding a Static MAC Address Entry Manually139MSTP Configuration141STP Overview141MSTP Overview149Background of MSTP149Basic MSTP Terminologies150Principle of MSTP153MSTP Implementation on Switches155STP-related Standards155Configuring Root Bridge155Configuration Prerequisites156Configuring an MST Region157Specifying the Current Switch as a Root Bridge/Secondary Root Bridge158Configuring the Bridge Priority of the Current Switch159Configuring the Mode a Port Recognizes and Sends MSTP Packets160Configuring the MSTP Operation Mode161Configuring the Maximum Hop Count of an MST Region162Configuring the Network Diameter of the Switched Network163Configuring the MSTP Time-related Parameters163Configuring the Timeout Time Factor164Configuring the Maximum Transmitting Speed on the Current Port165Configuring the Current Port as an Edge Port166Specifying Whether the Link Connected to a Port Is Point-to-point Link167Enabling MSTP168Configuring Leaf Nodes169Configuration Prerequisites170Configuring the MST Region170Configuring the Mode a Port Recognizes and Sends MSTP Packets170Configuring the Timeout Time Factor170Configuring the Maximum Transmitting Speed on the Current Port170Configuring a Port as an Edge Port170Configuring the Path Cost for a Port170Configuring Port Priority173Specifying Whether the Link Connected to a Port Is a Point-to-point Link174Enabling MSTP174Performing mCheck Operation174Configuration Prerequisites174Configuration Procedure174Configuration Example175Configuring Guard Functions175Introduction175Configuration Prerequisites177Configuring BPDU Guard177Configuring Root Guard177Configuring Loop Guard178Configuring TC-BPDU Attack Guard178Configuring Digest Snooping179Introduction179Configuring Digest Snooping179Configuring Rapid Transition180Introduction180Configuring Rapid Transition182STP Maintenance Configuration183Introduction183Enabling Log/Trap Output for Ports of MSTP Instance183Configuration Example183Enabling Trap Messages Conforming to 802.1d Standard183Displaying and Maintaining MSTP184MSTP Configuration Example184Multicast Overview187Multicast Overview187Information Transmission in the Unicast Mode187Information Transmission in the Broadcast Mode188Information Transmission in the Multicast Mode188Roles in Multicast189Advantages and Applications of Multicast190Multicast Models191ASM model191SFM model191SSM model191Multicast Architecture191Multicast Address192Multicast Protocols194Multicast Packet Forwarding Mechanism197Implementing the RPF Mechanism197RPF Check198IGMP Snooping Configuration199IGMP Snooping Overview199Principle of IGMP Snooping199Basic Concepts in IGMP Snooping199Work Mechanism of IGMP Snooping200IGMP Snooping Configuration202Enabling IGMP Snooping202Configuring the Version of IGMP Snooping203Configuring Timers203Configuring Fast Leave Processing204Configuring a Multicast Group Filter205Configuring the Maximum Number of Multicast Groups on a Port206Configuring Static Member Port for a Multicast Group206Configuring a Static Router Port207Configuring a Port as a Simulated Group Member208Configuring a VLAN Tag for Query Messages209Displaying and Maintaining IGMP Snooping209IGMP Snooping Configuration Examples210Configuring IGMP Snooping210Troubleshooting IGMP Snooping212Configuring Dropping Unknown Multicast Packets212802.1x Configuration213Introduction to 802.1x213Architecture of 802.1x Authentication213The Mechanism of an 802.1x Authentication System215Encapsulation of EAPoL Messages215802.1x Authentication Procedure218Timers Used in 802.1x221802.1x Implementation on an Switch 4210 Family222802.1x Configuration225Basic 802.1x Configuration225Configuration Prerequisites225Configuring Basic 802.1x Functions225Timer and Maximum User Number Configuration227Advanced 802.1x Configuration228Configuring Proxy Checking228Configuring Client Version Checking228Enabling DHCP-triggered Authentication229Configuring Guest VLAN229Configuring 802.1x Re-Authentication230Configuring the 802.1x Re-Authentication Timer230Displaying and Debugging 802.1x231Configuration Example231802.1x Configuration Example231HABP Configuration235Introduction to HABP235HABP Server Configuration235HABP Client Configuration236Displaying HABP236System-Guard Configuration237System-Guard Configuration237Enabling the System-Guard function237Configuring System-Guard-Related Parameters237Enabling System-Guard on Ports238Displaying and Maintaining the System-Guard Function238AAA Overview239Introduction to AAA239Authentication239Authorization239Accounting240Introduction to ISP Domain240Introduction to AAA Services240Introduction to RADIUS240AAA Configuration247AAA Configuration Task List247Creating an ISP Domain and Configuring Its Attributes248Configuring an AAA Scheme for an ISP Domain249Configuring Dynamic VLAN Assignment250Configuring the Attributes of a Local User251Cutting Down User Connections Forcibly253RADIUS Configuration Task List253Creating a RADIUS Scheme256Configuring RADIUS Authentication/Authoriz ation Servers256Configuring RADIUS Accounting Servers257Configuring Shared Keys for RADIUS Messages258Configuring the Maximum Number of RADIUS Request Transmission Attempts258Configuring the Type of RADIUS Servers to be Supported259Configuring the Status of RADIUS Servers259Configuring the Attributes of Data to be Sent to RADIUS Servers260Configuring the Local RADIUS Authentication Server Function261Configuring Timers for RADIUS Servers262Enabling Sending Trap Message when a RADIUS Server Goes Down263Enabling the User Re-Authentication at Restart Function263Displaying and Maintaining AAA264AAA Configuration Examples265Remote RADIUS Authentication of Telnet/SSH Users265Local Authentication of FTP/Telnet Users267Troubleshooting AAA268MAC Authentication Configuration271MAC Authentication Overview271Performing MAC Authentication on a RADIUS Server271Performing MAC Authentication Locally271Related Concepts272MAC Authentication Timers272Quiet MAC Address272Configuring Basic MAC Authentication Functions272MAC Address Authentication Enhanced Function Configuration273MAC Address Authentication Enhanced Function Configuration Tasks273Configuring a Guest VLAN274Configuring the Maximum Number of MAC Address Authentication Users Allowed to Access a Port275Configuring the Quiet MAC Function on a Port276Displaying and Debugging MAC Authentication276MAC Authentication Configuration Example277ARP Configuration279Introduction to ARP279ARP Function279ARP Message Format279ARP Table280ARP Process281ARP Configuration281Displaying and Debugging ARP281ARP Configuration Example282DHCP Overview283Introduction to DHCP283DHCP IP Address Assignment283IP Address Assignment Policy283Obtaining IP Addresses Dynamically284Updating IP Address Lease284DHCP Packet Format285Protocol Specification286DHCP Snooping Configuration287Introduction to DHCP Snooping287DHCP Snooping Configuration288DHCP Snooping Configuration Example288Network requirements288Network diagram288Configuration procedure288DHCP/BOOTP Client Configuration289Introduction to DHCP Client289Introduction to BOOTP Client289Configuring a DHCP/BOOTP Client289Displaying DHCP/BOOTP Client Configuration290DHCP Client Configuration Example290Network requirements290Network diagram291Configuration procedure291ACL Configuration293ACL Overview293ACL Matching Order293Ways to Apply an ACL on a Switch294Types of ACLs Supported by Switch 4210 Family295ACL Configuration295Configuring a Time Range295Configuring Basic ACL296Configuring Advanced ACL297Displaying ACL Configuration299Example for Upper-layer Software Referencing ACLs299Example for Controlling Telnet Login Users by Source IP299Example for Controlling Web Login Users by Source IP300QoS Configuration301Overview301Introduction to QoS301Traditional Packet Forwarding Service301New Applications and New Requirements301Major Traffic Control Techniques302QoS Supported By Switch 4210 Family302Traffic Identifying302Precedence303Priority Trust Mode305Port Rate Limiting307Queue Scheduling307Burst308QoS Configuration309Configuring Port Priority309Configuring to Trust the 802.1p Precedence of the Received Packets310Configuring Priority Trust Mode310Configuring Port Rate Limiting312Configuring Queue Scheduling312Enabling the Burst Function313Displaying QoS314Mirroring Configuration315Mirroring Overview315Local Port Mirroring315Configuring Local Port Mirroring315Displaying Port Mirroring316Mirroring Configuration Example316Network requirements316Network diagram317Configuration procedure317Cluster319Cluster Overview319Introduction to Switch Clustering319Roles in a Cluster320How a Cluster Works322Cluster Configuration Tasks327Configuring the Management Device327Configuring Member Devices330Managing a Cluster through the Management Device332Configuring the Enhanced Cluster Features333Displaying and Maintaining Cluster Configuration335Cluster Configuration Example335Basic Cluster Configuration Example335Enhanced Cluster Feature Configuration Example338PoE Configuration341PoE Overview341Introduction to PoE341PoE Features Supported by the Switch 4210341PoE Configuration342PoE Configuration Tasks342Enabling the PoE Feature on a Port343Setting the Maximum Output Power on a Port343Setting PoE Management Mode and PoE Priority of a Port343Setting the PoE Mode on a Port344Configuring the PD Compatibility Detection Function344Configuring a PD Disconnection Detection Mode345Configuring PoE Over-Temperature Protection on the Switch345Upgrading the PSE Processing Software Online345Displaying PoE Configuration346PoE Configuration Example346PoE Configuration Example346PoE Profile Configuration349Introduction to PoE Profile349PoE Profile Configuration349Configuring PoE Profile349Displaying PoE Profile Configuration350PoE Profile Configuration Example351PoE Profile Application Example351SNMP Configuration353SNMP Overview353SNMP Operation Mechanism353SNMP Versions353Supported MIBs354Configuring Basic SNMP Functions355Configuring Trap Parameters357Configuring Basic Trap357Configuring Extended Trap358Enabling Logging for Network Management359Displaying SNMP359SNMP Configuration Examples359SNMP Configuration Examples359RMON Configuration363Introduction to RMON363Working Mechanism of RMON363Commonly Used RMON Groups364RMON Configuration365Displaying RMON366RMON Configuration Examples366NTP Configuration369Introduction to NTP369Applications of NTP369Implementation Principle of NTP370NTP Implementation Modes371NTP Configuration Tasks373Configuring NTP Implementation Modes374Configuring NTP Server/Client Mode374Configuring the NTP Symmetric Peer Mode375Configuring NTP Broadcast Mode375Configuring NTP Multicast Mode376Configuring Access Control Right377Configuration Prerequisites377Configuration Procedure377Configuring NTP Authentication378Configuration Prerequisites378Configuration Procedure379Configuring Optional NTP Parameters380Configuring an Interface on the Local Switch to Send NTP messages380Configuring the Number of Dynamic Sessions Allowed on the Local Switch380Disabling an Interface from Receiving NTP messages381Displaying NTP Configuration381Configuration Example381Configuring NTP Server/Client Mode381Configuring NTP Symmetric Peer Mode383Configuring NTP Broadcast Mode384Configuring NTP Multicast Mode385Configuring NTP Server/Client Mode with Authentication387SSH Configuration389SSH Overview389Introduction to SSH389Algorithm and Key389Asymmetric Key Algorithm389SSH Operating Process390Configuring the SSH Server392SSH Server Configuration Tasks392Configuring the Protocol Support for the User Interface392Generating/Destroying a RSA or DSA Key Pair393Exporting the RSA or DSA Public Key394Creating an SSH User and Specify an Authentication Type394Specifying a Service Type for an SSH User395Configuring SSH Management395Configuring the Client Public Key on the Server396Assigning a Public Key to an SSH User397Configuring the SSH Client398SSH Client Configuration Tasks398Configuring the SSH Client Using an SSH Client Software398Configuring the SSH Client on an SSH2-Capable Switch406Displaying SSH Configuration408SSH Configuration Examples408When the Switch Acts as the SSH Server and the Authentication Type is Password408When the Switch Acts as an SSH Server and the Authentication Type is Publickey412When the Switch Acts as an SSH Client and the Authentication Type is Password419When the Switch Acts as an SSH Client and the Authentication Type is Publickey420When the Switch Acts as an SSH Client and First-time authentication is not Supported422File System Management Configuration425File System Configuration425File System Configuration Tasks425Directory Operations425File Operations426Flash Memory Operations427Prompt Mode Configuration427File System Configuration Example427File Attribute Configuration428Introduction to File Attributes428Configuring File Attributes429FTP and SFTP Configuration431Introduction to FTP and SFTP431Introduction to FTP431Introduction to SFTP432FTP Configuration432FTP Configuration: A Switch Operating as an FTP Server432FTP Configuration: A Switch Operating as an FTP Client434Configuration Example: A Switch Operating as an FTP Server436FTP Banner Display Configuration Example438FTP Configuration: A Switch Operating as an FTP Client439SFTP Configuration440SFTP Configuration: A Switch Operating as an SFTP Server440SFTP Configuration: A Switch Operating as an SFTP Client441SFTP Configuration Example443TFTP Configuration447Introduction to TFTP447TFTP Configuration448Basic configurations on a TFTP client448TFTP Configuration Example448Information Center453Information Center Overview453Introduction to Information Center453System Information Format456Information Center Configuration458Introduction to the Information Center Configuration Tasks458Configuring Synchronous Information Output458Displaying the Time Stamp with the UTC Time Zone459Setting to Output System Information to the Console459Setting to Output System Information to a Monitor Terminal461Setting to Output System Information to a Log Host462Setting to Output System Information to the Trap Buffer463Setting to Output System Information to the Log Buffer463Setting to Output System Information to the SNMP NMS464Displaying and Maintaining Information Center464Information Center Configuration Examples465Log Output to a UNIX Log Host465Log Output to a Linux Log Host466Log Output to the Console468Configuration Example468Boot ROM and Host Software Loading471Introduction to Loading Approaches471Local Boot ROM and Software Loading471BOOT Menu471Loading by XModem through Console Port472Loading by TFTP through Ethernet Port477Loading by FTP through Ethernet Port478Remote Boot ROM and Software Loading480Remote Loading Using FTP480Remote Loading Using TFTP484Basic System Configuration and Debugging485Basic System Configuration485Displaying the System Status486Debugging the System486Enabling/Disabling System Debugging486Displaying Debugging Status487Displaying Operating Information about Modules in System488Network Connectivity Test489Network Connectivity Test489ping489tracert489Device Management491Device Management Configuration491Device Management Configuration Tasks491Rebooting the Ethernet Switch491Scheduling a Reboot on the Switch491Configuring Real-time Monitoring of the Running Status of the System492Specifying the APP to be Used at Reboot492Upgrading the Boot ROM492Displaying the Device Management Configuration493Remote Switch APP Upgrade Configuration Example493Remote-Ping Configuration497Remote-Ping Overview497Introduction to Remote-Ping497Test Types Supported by Remote-Ping498Remote-Ping Test Parameters498Remote-Ping Configuration500Configuration on a Remote-Ping Server500Remote-Ping Client Configuration501Remote-Ping Configuration Example513ICMP Test513DHCP Test514FTP Test516HTTP Test517Jitter Test519SNMP Test521TCP Test (Tcpprivate Test) on the Specified Ports522UDP Test (Udpprivate Test) on the Specified Ports524DNS Test525IPv6 Mangement Configuration527IPv6 Overview527IPv6 Features527Introduction to IPv6 Address528Introduction to IPv6 Neighbor Discovery Protocol531Introduction to IPv6 DNS534Protocols and Standards534IPv6 Configuration Task List534Configuring an IPv6 Unicast Address534Configuring IPv6 NDP536Configuring a Static IPv6 Route538Configuring IPv6 TCP Properties538Configuring the Maximum Number of IPv6 ICMP Error Packets Sent within a Specified Time539Configuring IPv6 DNS539Displaying and Maintaining IPv6541IPv6 Configuration Example542IPv6 Unicast Address Configuration542IPv6 Application Configuration545Introduction to IPv6 Application545IPv6 Application Configuration545IPv6 Ping545IPv6 Traceroute545IPv6 TFTP546IPv6 Telnet547IPv6 Application Configuration Example548IPv6 Applications548Troubleshooting IPv6 Application549Unable to Ping a Remote Destination549Unable to Run Traceroute550Unable to Run TFTP550Unable to Run Telnet550DNS Configuration551DNS Overview551Static Domain Name Resolution551Dynamic Domain Name Resolution551Configuring Domain Name Resolution553Configuring Static Domain Name Resolution553Configuring Dynamic Domain Name Resolution553Displaying and Maintaining DNS553DNS Configuration Example554Static Domain Name Resolution Configuration Example554Dynamic Domain Name Resolution Configuration Example555Troubleshooting DNS556Password Control Configuration Operations557Introduction to Password Control Configuration557Password Control Configuration558Configuration Prerequisites558Configuration Tasks558Configuring Password Aging559Configuring the Limitation of Minimum Password Length560Configuring History Password Recording561Configuring a User Login Password in Interactive Mode562Configuring Login Attempt Times Limitation and Failure Processing Mode563Configuring the Password Authentication Timeout Time564Configuring Password Composition Policies564Displaying Password Control565Password Control Configuration Example566文件大小： 13.4 MB页数： 567Language: English打开用户手册
用户手册目录3Com® Switch 4210 FamilyGetting Started1Contents3About This Guide5Download the Latest Software and Documentation for Your 3Com Switch5Before You Start5Release Notes5Conventions5Related Documentation6Product Introduction7Overview7Introduction to the Switch 4210 Family PWR Switches8Switch 4210 9-port PWR8Front panel8Rear panel9Side panel9Power system9Cooling system9Switch 4210 PWR 18-port9Front panel9Rear panel10Side panel10Power system11Cooling system11Switch 4210 PWR 26-port11Front panel11Rear panel12Power system12Cooling system12The Switch 4210 PWR Front Panel LEDs13Power LED1310/100BASE-TX Autosensing Ethernet Port Status LED131000 Mbps Uplink Port Status LED13Introduction to the Switch 4210 Family Non-PWR Models14Switch 4210 9-port14Front panel14Rear panel15Power system15Cooling system15Switch 4210 18-port15Front panel15Rear panel16Power system16Cooling system16Switch 4210 26-port16Front panel16Rear panel17Power system17Cooling system17Switch 4210 52-port17Front Panel17Power system17Cooling system17Switch 4210 Family Front Panel LEDs18Power LED18Port LED18Technical Specifications19Related Standards20Earthing Lead20SFP Modules Supported for the Switch 421021Installing the Switch23Rack-Mounting the Switch24Mounting the front bracket25Mounting the rear bracket25Mounting the Switch on a Desktop27The Power-up Sequence27Powering-up the Switch 421027Checking for Correct Operation of LEDs27Connecting a Redundant Power Supply28Specifying the Redundant Power System29Connecting the Switch to the Redundant Power System30Connecting the Earthing Cable31Using Power over Ethernet31Connecting the Console Cable32Managing your Switch35Methods of Managing a Switch36Command Line Interface Management36Command Line Interface Management using SSH36Web Interface Management36SNMP Management37Setting Up Your Switch37IP Configuration38Configuring IP Manually38Automatically Configuring the IP Address using DHCP39Viewing Automatically Configured IP Information40Connecting to the Console Port40Viewing IP Information using the Console Port40Using 3Com Network Director or 3Com Network Supervisor41Manually Configuring IP Information42Connecting to the Console Port42Prerequisites42Connecting the Workstation to the Switch42Setting Up the Switch with IP Information43Connecting to a Front Panel Port44Prerequisites44Connecting the Workstation to the Switch45Setting Up the Switch with IP Information45Setting Up Command Line Interface Management47User Interface Overview47CLI Management using the Console Port47CLI Management over the Network47Setting Up Command Line Interface Management using SSH48Setting Up Web Interface Management48Prerequisites48Choosing a Browser48Web Management Over the Network49Setting Up SNMP Management49Prerequisites49Default Users and Passwords50Problem Solving51Solving Problems Indicated by LEDs52The PWR LED does not light52On powering-up, the PWR LED lights Red52On powering-up, the PWR LED is flashing yellow52A Port LED is flashing yellow52A link is connected and yet the Port LED does not light52Solving Hardware Problems53A fan failure warning message is received53Unit fails, no SNMP fan failure message is received53Error message indicating that the SFP transceiver is invalid54Error message indicating that the SFP transceiver is faulty54Solving Communication Problems54IP Addressing54How do you obtain a registered IP Address?54Solving Fabric Formation Problems55Pin-outs57Null Modem Cable57PC-AT Serial Cable57Modem Cable58Ethernet Port RJ-45 Pin Assignments58Obtaining Support for Your 3Com Products59Register Your Product to Gain Service Benefits59Solve Problems Online59Purchase Extended Warranty and Professional Services59Access Software Downloads59Contact Us60Telephone Technical Support and Repair603Com Network Management633Com Network Supervisor633Com Network Director633Com Network Access Manager643Com Enterprise Management Suite65Integration Kit with HP OpenView Network Node Manager65Redundant Power Supply Safety Information67Important Safety Information67L’information de Sécurité Importante68Wichtige Sicherheitsinformationen68Información de Seguridad Importante69Importanti Informazioni di Sicurezza71Wa¿ne informacje o zabezpieczeniach71Regulatory Notices73FCC Statement73Information to the User73ICES Statement73CE Statements (Europe)73VCCI Statement73文件大小： 1.7 MB页数： 74Language: English打开用户手册
