Troubleshooting | 3Com 3CRDSF9PWR specs

D T ROUBLESHOOTING
Problem Management	239
Troubleshooting Solutions	239
Fail Safe Commands	241

EGLOSSARY

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FO BTAINING S UPPORT FOR Y OUR 3C OM P RODUCTS

Register Your Product to Gain Service Benefits	249
TTroubleshoot Online	249
Purchase Extended Warranty and Professional Services	250
Access Software Downloads	250
Telephone Technical Support and Repair	250
Contact Us	251

REGULATORY NOTICES

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3Com 3CRDSF9PWR manual Troubleshooting

Contents

3Com OfficeConnect Managed PoE Switch 3Com Corporation Campus Drive Marlborough Overview User GuideManaging System Information Provides information for About this Guide Related ConventionsDocumentation Lists conventions that are used throughout this guide About this Guide Contents Viewing Basic Settings Configuring Ports Configuring Igmp Snooping Managing System Files -O UTS Managing Device Diagnostics Troubleshooting Page Getting Started About SwitchOfficeConnect Managed Fast OfficeConnect Managed Fast Ethernet PoE Switch-front panel OfficeConnect Managed Fast Ethernet PoE switch provides LED IndicatorsLED Status Describes the meanings of the LEDs Fast Ethernet PoE switch SpecificationsSystem Installing Methods of Managing a Switch Setting Up forManagement Refer to Setting Up Command Line Interface Management on Refer to Setting Up Web Interface Management on Refer to Setting Up Snmp Management V1 or V2 on Switch SetupConfigure IP information manually for your switch or view Automatically configured IP information Initial Switch Setup and Management Flow Diagram Manual IP Configuration Automatic IP Configuration using Dhcp Prerequisites Interface CLI Manually set the IP Address using the Console Port Connecting the Workstation to the Switch Console#configure Console#show ip interface Interface Setting Up WebChoosing a Browser Command Line Setting UpInterface Management Over the Network Where xxx.xxx.xxx.xxx is the IP address of the switch Network Using Telnet Default Users Upgrading Software using Following prompt displays Enter y and press Return. The system reboots the switch Using the 3COM WEB Interface Starting the 3Com Accessing the 3Com Web InterfaceWeb Interface Multi-Session Web Connections Web Interface Enter Network Password 3Com Web Interface Home Understanding 3Com Web Interface Interface Components View Description Following table lists the user interface components Click Device Summary Device View To access the Device RepresentationManagement Buttons To view configuration information Using ScreenTable Options IP Setup Click Administration IP Setup. The IP Setup Page opens System Access Modify Modify the fields Click . The access fields are modified Configuration to be saved to the flash memory ConfigurationTo save the device configuration Click . The configuration is saved Click Administration Reset. The Reset Page opens Resetting the DeviceClick . a confirmation message is displayed Password is displayed Reboot in 15 secondsClick Restores device factory defaults DefaultsTo restore the device Restoring Factory Device Logging OffTo log off the device Following message appears Viewing Basic Settings Device Summary Page contains the following fields To view the Device Summary Settings Polling Interval Polling Interval Page contains the following fields Color Key Click Device Summary Color Key. The Color Key Page opens Managing Device Security Managing Device Security System Access Summary Interface To define System Access To modify System Access To remove users Click . The Users are deleted, and the device is updated To configure the Radius client Managing Device Security Defining Port-Based Authentication802.1X Click Security 802.1X Summary. The 802.1X Summary Page opens Defining Port-Based Authentication Port Settings 802.1X System SettingClick Security 802.1X Setup. The 802.1X Setup Page opens Defining Port-Based Authentication Local Database DefiningForwarded on to the originally requested web To configure Local Database Settings AuthenticationLocal Database Setup Page contains the following fields Local Database Port Detail Local Database Port Setup Page contains the following fields User Name The name of users stored in the local database To display the users stored in the Local Database Create a User To create user entries in the Local DatabaseSummary Local Database User Modify Local Database User Remove To remove a user entry from the Local Database Connection to Encrypting Client and server establish a secure encrypted connection To configure Https settings Https//deviceportnumber Disabled Https is disabled on the device Https Download Certificate Managing Device Security Switch supports both SSH Version 1.5 and 2.0 clients Click Security SSH Host Key. The SSH Host Key Page opens To view the DSA and RSA keysSSH Host Key Page contains the following fields SSH Key Generate Must use this web page to create a public host key Access Control Lists ACLs allow network managers to define Defining AccessControl Lists Filters that determine traffic classifications MAC Based ACL Summary Click Device ACL MAC Based ACL Setup. The MAC Based ACL To configure MAC-based ACLs Select Create ACL Add Rules to ACL Click Device ACL MAC Based ACL Remove. The MAC Based ACL To define a new MAC-based ACL rule Check Remove ACL IP Based ACL Summary Defining Access Control Lists Click Device ACL IP Based ACL Setup. The IP Based ACL Setup To configure IP-based ACLsOpens Add Rules to ACL Managing Device Security Click Device ACL IP Based ACL Remove. The IP Based ACL To create a new IP-based ACL Updated ACL Binding Summary To define ACL Binding ACL Binding Setup ACL Binding Remove To remove ACL Binding Managing Device Security To display the storm control settings SettingsStorm Control For all ports To configure Broadcast Storm Control ConfiguringControl Define the relevant fields Using Broadcast Storm Control Managing Device Security Information Device View Viewing System Description System settings. The section includes the following topics SettingsConfiguring the System Name Configuring System Time Device To configure the System Name System Time Setup To configure the System Time Defining System Settings Saved to the flash memory Saving the Device To reset the device configuration Managing System Information Configuring Ports Port Administration Summary 115 Port Administration Setup To configure Port Settings 117 Click Port Administration Detail. The Port Detail Page opens 119 Configuring Ports Aggregating Ports Link Aggregation Summary Blue Displays a member of the aggregation being created To create Link Aggregation Deselected ports Summary Link Aggregation Modify Page includes the following fields To modify Link AggregationBlue Displays a member of the modified aggregation Summary Link Aggregation Remove Page includes the following fields To remove Link Aggregation Lacp Summary Lacp Modify Aggregating Ports Configuring Vlans Vlan Click Device Vlan Vlan Detail. The Vlan Detail Page opens Vlan Port Detail Vlan Setup Page contains the following fields Click Device Vlan Setup. The Vlan Setup Page opensCreate VLANs To create VLANs Click Device Vlan Rename. The Vlan Rename Page opens To rename VLANs Click Device Vlan Modify VLAN. The Modify Vlan Page opens To edit Vlan Settings 137 Click Device Vlan Modify Port. The Modify Port Page opens To modify Port Vlan Settings Click Device Vlan Remove. The Vlan Remove Page opens To delete VLANs Configuring Vlans Address Information Defining IP IP Setup Page contains the following fieldsAddressing To define an IP interface Configuring ARP Settings ARP Settings Summary ARP Settings Setup To configure ARP entries To remove ARP entries ARP Settings Remove Configuring ARP Settings Configuring IP and MAC Address Information To view address table settings Table Settings Port Summary Configuring Igmp Snooping Click Device Igmp Snooping Setup. The Igmp Snooping To configure Igmp Snooping Vlan Settings Configuring Igmp Snooping Configuring Spanning Tree Spanning Tree Summary 157 Spanning Tree To configure Spanning Tree Setup 159 To modify Spanning Tree Spanning Tree Port Setup Recommended STA Path Cost Range Configuring Spanning Tree Snmp version Snmp version 2c Configuring Snmp To set the operational status for Snmp Click Administration Snmp Setup. The Snmp Setup Page opens To define Snmp communities Click Administration Snmp Snmp Add. The Snmp Add Page opens Snmp Trap Community StringSnmp Add Page contains the following fields Removing Snmp Remove Community StringCommunities To remove Snmp communities or traps Remove Snmp Trap Service CoS Summary Click Device QoS CoS Summary. The CoS Summary Page opens Click Device QoS CoS Setup. The CoS Setup Page opens To configure CoS Settings Click Device QoS Queue. The Queue Setup Page opens To configure the queue mode CoS to Queue Summary With 0 representing the lowest queue and 3 as the highest To configure CoS values to queues Dscp to CoS Summary To view the Dscp to CoS mapping To map Dscp to CoS values Dscp to CoS Setup Trust Setup Page contains the following fields Click Device QoS Trust Setup. The Trust Setup Page opens Bandwidth Summary Ingress Rate Limit Egress Shaping Rates Bandwidth Setup Page contains the following fields To configure Bandwidth SettingsBe applied to the egress traffic on a specified interface Egress Shaping Rate Configuring Quality of Service Voice Vlan Summary Voice Vlan Setup To configure Voice Vlan Settings Voice Vlan is defined, and the device is Voice Vlan Port Setup To configure Voice Vlan port settings Device is updated Port Definitions To view Voice Vlan Port Detail SettingsFor specific ports Configuring Voice Vlan OUI List To view Voice Vlan OUI SettingsVoice Vlan OUI Summary Page contains the following fields Voice Vlan OUI Modify Page contains the following fields To modify Voice Vlan OUI Settings Configuring Quality of Service Managing System Files Managing System Files To backup System files Configuration Upload To restore System files Configuration Download Software RestoringTo download the software image Software Download Managing System Files Ethernet Devices Port PoE Summary Page displays the following information Device Power Display Port Power Display Click Port PoE Setup. The Port PoE Setup Page opens To configure Port PoE Settings 203 Managing Power Over Ethernet Devices System Log Severity Levels Managing System Logs Logging Display To view Logging To define Log Parameters Logging Setup Page contains the following fields Managing System Logs Viewing Statistics Port Statistics Summary To view port statistics Port Statistics Summary Page Field Description Port Statistics Summary Page Field Description 213 Port Statistics Summary Page Field Description Managing Device Diagnostics Port mirroring is not supported for trunk ports Port Mirroring Setup To enable port mirroring Managing Device Diagnostics Port Mirroring Remove To remove port mirroring Cable Diagnostics Summary To view cables diagnostics Configuring Cable Diagnostics To test cables Diagnostics Pinging Another Using the command line interface to ping another deviceRequest packets to another node on the network Press Esc to stop pinging Supervisor 3Com Network Director Access Manager Network Node HP OpenViewManager Application such as 3Com Enterprise Management Suite EMS Appendix a 3COM Network Management Physical Environmental Electrical Feature Description Switch Features Interface with Crossover Mdix SSL Appendix B Device Specifications and Features Null Modem Cable RJ-45 to RS-232 25-pin PC-AT Serial Cable 10/100 and 1000BASE-T RJ-45 connections Ethernet Port RJ-45 Pin Assignments Ethernet Port RJ-45 Pin Assignments Appendix C PIN-OUTS Troubleshooting ProblemSolutions Problems Possible Cause Solution No connection and the port LED is off Lost Password Problems Possible Cause Solution Appendix D Troubleshooting Address Resolution Access Control ListBoot Protocol Service Dscp Appendix E Glossary Ieee Ieee 802.3uIgmp Snooping Igmp Query Link Aggregation See Port Trunk Port Authentication See Ieee Remote Monitoring RemoteProtocol Rstp Secure Shell SSH Though located on the same LAN Byte blocks and error-correctedXModem Register Your Service BenefitsProduct to Gain TTroubleshoot Services WarrantyAccess Software Purchase Extended Contact Us Must apply for a user name and passwordNext section Directory of 3Com resources by region at 00800 4411 Contact Us Appendix F Obtaining Support for Your 3COM Products Regulatory Notices