Using the Command-Line Interface | 3Com 9100 manual

Using the Command-Line Interface 155

STP You have connected an endstation directly to the switch and the endstation fails to boot correctly:

The Switch 9100 has STP enabled, and the endstation is booting before the STP initialization process is complete. Specify that STP has been disabled for that VLAN, or turn off STP for the switch ports of the endstation and devices to which it is attempting to connect, and then reboot the endstation.

The switch keeps aging out endstation entries in the switch Forwarding Database (FDB):

Reduce the number of topology changes by disabling STP on those systems that do not use redundant paths.

Specify that the endstation entries are static or permanent.

Image 155

3Com 9100 manual Using the Command-Line Interface

Contents

SuperStack Switch User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Installation and Setup Virtual Lans Vlans Forwarding Database FDB Quality of Service QOS Using the WEB Interface Technical Specifications Troubleshooting Page About this Guide Ethernet concepts Ethernet switching and bridging concepts Screen displays ConventionsIcon Description Convention Description Compliance RelatedDocumentation Year About this Guide About Switch 9100 OverviewSwitch Features Simple Network Management Protocol Snmp Virtual LANs VLANs For information on load sharing, refer to Chapter Example ConfigurationQuality of Service QoS Network Key Switch 9100 used in a backbone configuration Ports Front panel has the following featuresView Color Indicates 1000BASE-SX Port Status LEDs Describes the LED behavior on the SwitchLEDs Standard Media Type Mhz/Km Rating Maximum Distance Unit Status LED Switch 9100 Rear shows the Switch 9100 rear viewColor Indicates 100/1000BASE-TX Port Status LEDs MAC Address Power SocketsReset Button Serial Number Public Location Installation and SetupDetermining Rack Mounting InstallingTabletop Installing the Switch 9100 Function Pin Number Direction Connecting Equipment to the Console Port Switch Flashes until the switch has successfully passed the Post Installation First Time Default Vlan named defaultLogin admin Logging on for Installation and Setup Accessing the Switch Accessing the Switch Be a range of numbers, for example You could enter the following shortcut Reboot date time cancel Symbol DescriptionConfig vlan name ipaddress ipaddress Config snmp community readonly readwrite string Line-Editing Keys Create account admin user username encrypted password Command Description Disable idletimeout Disable bootp vlan name allDisable cli-config-logging Disable clipaging 3C177052 Configuring Management AccessUnconfig switch all Show banner 3C1770519# Changing the Default PasswordAccount Name Access Level Show accounts Create account admin user username encryptedViewing Accounts Deleting an Account Methods Managing SwitchUsing Access Profiles Config access-profile accessprofile To view the contents of an access profile, type Access Profile Example Using a Bootp Server Using TelnetTo view the Telnet configuration, type Connecting to Another Host Using Telnet Manually Configuring the IP Settings Your changes take effect immediately Config vlan name ipaddress ipaddress subnetmaskConfig iproute add default ipaddress metric For example Clear session sessionnumber Terminate the session by using the following commandShow session IP Host CommandsUsing the Web On the switch Supported MIBs Using SnmpAccessing Switch Agents Enable Snmp traps Enable Snmp access Command Connectivity Ping command syntax isOptions for the ping command are described in Table Checking Basic Disabling Switch 9100 PortsConfiguring Switch Port Speed Duplex Setting Enabling Config ports portlist qosprofile Enable learning ports portlistEnable ports portlist Enable sharing masterport Show ports portlist txerrors Disable learning ports portlistDisable ports portlist Disable sharing masterport Accessing the Switch Enable sharing 4 grouping Sharing ConfigurationPort-Mirroring Verifying the Load Show mirroring CommandsDisable mirroring Example Accessing the Switch VLANs provide extra security VLANs help to control traffic Igmp Snooping Igmp OverviewVLANs ease the change and movement of devices Forward-mcrouter-only Forward-mcrouter-only is specified, Enable igmp vlan nameEnable igmp snooping Port-Based VLANs Types of VLANs Marketing Finance Sales Spanning Switches with Port-Based VLANs Switch AccountingEngineering Assigning a Vlan Tag Uses of Tagged VLANs Tagged Ports Shows a logical diagram of the same network Mixing Port-Based and Tagged VLANs AppleTalk Following protocol filters are predefined on the switchNetBIOS DECNet IPX8022 Predefined Protocol Filters Create protocol protocolname Config protocol protocolname add protocoltype HexvalueDefining Protocol Filters Packets Over Protocol Vlan NamesDeleting a Protocol Filter On the Switch Configuring VLANs 6 to it Show vlan name Displaying Vlan SettingsTo display Vlan settings, use the following command Deleting VLANs Virtual Lans Vlans Forwarding Database FDB Associating a QoS Profile with an FDB Entry Following example adds a permanent entry to the FDB Config fdb agingtime numberDisable learning ports Entries Show fdb macaddress vlan name portlist Permanent To display FDB entries, use the commandDisplaying FDB Entries Name Clear fdb macaddress vlan name portlist Removing FDBDelete Fdbentry macaddress vlan Forwarding Database FDB Protocol Spanning Tree Protocol STPOverview Spanning Tree Network with an illegal topology Traffic flowing through Bridge B Initialization Stabilization ReconfigurationDomains STPD2 contains VLANs Manufacturing and Engineering Stpd Marketing & Sales Marketing, Sales & Engineering Create stpd stpdname Configuring STP on the SwitchConfig stpd stpdname add vlan name Enable stpd stpdname Enable stpd port portlist Shows the commands used to configure STP Through 3, and port SettingsDisplaying STP Listed in Table Resetting STP Spanning Tree Protocol STP Building Blocks Quality of Service QOSQuality of Service QoS Profiles Profile Name Priority Minimum Bandwidth Maximum Bandwidth Vlan Dynamic MAC Addresses Permanent MAC addresses Blackhole Command to clear the FDB is as followsVerifying MAC-Based QoS Settings Or the command Physical and Logical Groupings Config dot1p type dot1pvalue qosprofile qosnameEnable dot1p replacement ports portlist all 802.1p Packets Verifying Physical and Logical Groupings Source Port Show ports portlist qosmonitor Verifying Configuration PerformanceDisplaying QoS Information QoS Monitor Disable qosmonitor Enable qosmonitor port port Configuring QoS Quality of Service QOS Status Monitoring Statistics Show memory Show log configShow switch Show log priority Accuracy To view port statistics, use the following commandPort Statistics To view port receive errors, use the following command Port ErrorsTo view port transmit errors, use the following command Logging Port MonitoringDisplay Keys Clear log static Is specific to the problemWhere the following is true Level Description Real-Time Display To configure the log display, use the following commandConfigure remote logging by using the following command Disable syslog Disable log display Clear Counters Rmon features supported by the switchOn the network Allows you to monitor LANs remotely History AlarmsStatistics Reducing the Traffic Load EventsImproving Efficiency Allowing Proactive Management Events Rmon Group Support Supplied by the Switch StatisticsAlarms History Action High Threshold Enable disable rmon Status Monitoring and Statistics To re-enable Web access, use the following command Using the WEB InterfaceEnabling Disabling Web Access Browser Setting Up YourAccessing the Web Webserver busy Navigating the Web InterfaceTask Frame Selection Type Key Sequence Browser ControlsStatus Messages Do a Get When Configuring a VlanSaving Changes Using the WEB Interface New Image Software Upgrade and Boot OptionsSecondary image and configuration file on the switch Downloading a Changes Rebooting the SwitchSaving Upgrading Software Upgrade and Boot Options Save configuration primary Boot OptionShow configuration Cancel option Software Upgrade and Boot Options Safety Information Information Important Safety Lithium Battery Appendix a Safety Information Sécurité Importante ’information de Appendix a Safety Information Batterie au lithium Europe Wichtige Sicherheitsinformat ionen Lithiumbatterie Warnung Faseroptikanschlüsse Optische Sicherheit Appendix a Safety Information Technical Specifications Terminal Emulation Protocols Used for Administration LEDs Troubleshooting Telnet workstation cannot access the device Using Command-Line InterfaceSwitch does not power up Snmp Network Manager cannot access the device Permanent entries remain in the FDB Traps are not received by the Snmp Network Manager Excessive RX CRC errors You forget your password and cannot logPort Configuration No link light on 100/1000BASE-TX port VLANs You cannot add a port to a Vlan No link light on Gigabit fiber port 802.1Q links do not work correctly VLANs, IP Addresses and default routesVlan names Using the Command-Line Interface Appendix C Troubleshooting Online Technical ServicesTechnical Support Country Data Rate Telephone Number Access by Analog ModemUsername anonymous Hours a day, 7 days a week 408 727 Access by Digital Modem847 262 Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle East Country Telephone Number Fax Number Page Glossary Collision BridgeBroadcast Broadcast storm Glossary Loop IP addressLatency Line speed Port trunks See load sharing Segment RepeaterResilient link Router Telnet SwitchSwitch Database Standby port Glossary Numbers AdminIndex FDB Rmon Tftp Index Index Index of Commands 118 Index of Commands Index of Commands 3Com Corporation Limited Warranty Warranties Exclusive Governing LAW EMC Statements