Glossary | 3Com 9100 specs

GLOSSARY

10BASE-TThe IEEE specification for 10Mbps Ethernet over Category 3, 4 or 5 twisted pair cable.

100BASE-FXThe IEEE specification for 100Mbps Fast Ethernet over fiber-optic cable.

100BASE-TXThe IEEE specification for 100Mbps Fast Ethernet over Category 5 twisted-pair cable.

1000BASE-TThe IEEE specification for 1000Mbps Gigabit Ethernet over four-pair Category 5 twisted-pair cable.

1000BASE-SXThe IEEE specification for 1000Mbps Gigabit Ethernet over fiber-optic cable.

ageing The automatic removal of dynamic entries from the Switch Database which have timed-out and are no longer valid.

auto-negotiationA feature on twisted pair ports that allows them to advertise their capabilities for speed, duplex and flow control. When connected to a port that also supports auto-negotiation, the link can automatically configure itself to the optimum setup.

backbone The part of a network used as a primary path for transporting traffic between network segments.

bandwidth The information capacity, measured in bits per second, that a channel can transmit. The bandwidth of Ethernet is 10Mbps, the bandwidth of Fast Ethernet is 100Mbps, and the bandwidth of Gigabit Ethernet is 1000Mbps.

baud The signalling rate of a line, that is, the number of transitions (voltage or frequency changes) made per second. Also known as line speed.

Image 163

3Com 9100 manual Glossary

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 View Front panel has the following featuresPorts Color Indicates 1000BASE-SX Port Status LEDs Describes the LED behavior on the SwitchLEDs Standard Media Type Mhz/Km Rating Maximum Distance Color Indicates 100/1000BASE-TX Port Status LEDs Switch 9100 Rear shows the Switch 9100 rear viewUnit Status LED MAC Address Power SocketsReset Button Serial Number Public Determining Installation and SetupLocation Tabletop InstallingRack Mounting 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 Account Name Access Level Changing the Default Password3C1770519# Viewing Accounts Create account admin user username encryptedShow 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 Show session Terminate the session by using the following commandClear session sessionnumber 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 VLANs ease the change and movement of devices Igmp OverviewIgmp Snooping Enable igmp snooping Enable igmp vlan nameForward-mcrouter-only Forward-mcrouter-only is specified, 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 Defining Protocol Filters Config protocol protocolname add protocoltype HexvalueCreate protocol protocolname Deleting a Protocol Filter Vlan NamesPackets Over Protocol On the Switch Configuring VLANs 6 to it To display Vlan settings, use the following command Displaying Vlan SettingsShow vlan name 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 Displaying FDB Entries To display FDB entries, use the commandShow fdb macaddress vlan name portlist Permanent Delete Fdbentry macaddress vlan Removing FDBName Clear fdb macaddress vlan name portlist Forwarding Database FDB Protocol Spanning Tree Protocol STPOverview Spanning Tree Network with an illegal topology Traffic flowing through Bridge B Initialization Domains ReconfigurationStabilization 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 Displaying STP SettingsThrough 3, and port Listed in Table Resetting STP Spanning Tree Protocol STP Quality of Service Quality of Service QOSBuilding Blocks 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 Displaying QoS Information QoS Monitor Verifying Configuration PerformanceShow ports portlist qosmonitor Disable qosmonitor Enable qosmonitor port port Configuring QoS Quality of Service QOS Status Monitoring Statistics Show memory Show log configShow switch Show log priority Port Statistics To view port statistics, use the following commandAccuracy To view port transmit errors, use the following command Port ErrorsTo view port receive errors, use the following command Display Keys Port MonitoringLogging Clear log static Is specific to the problemWhere the following is true Level Description Configure remote logging by using the following command To configure the log display, use the following commandReal-Time Display Disable syslog Disable log display Clear Counters Rmon features supported by the switchOn the network Allows you to monitor LANs remotely Statistics AlarmsHistory 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 Enabling Disabling Web Access Using the WEB InterfaceTo re-enable Web access, use the following command Accessing the Web Setting Up YourBrowser Task Frame Navigating the Web InterfaceWebserver busy Status Messages Browser ControlsSelection Type Key Sequence Saving Changes Configuring a VlanDo a Get When Using the WEB Interface New Image Software Upgrade and Boot OptionsSecondary image and configuration file on the switch Downloading a Saving Rebooting the SwitchChanges 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 Port Configuration No link light on 100/1000BASE-TX port You forget your password and cannot logExcessive RX CRC errors VLANs You cannot add a port to a Vlan No link light on Gigabit fiber port Vlan names VLANs, IP Addresses and default routes802.1Q links do not work correctly Using the Command-Line Interface Appendix C Troubleshooting Technical Support ServicesOnline Technical Country Data Rate Telephone Number Access by Analog ModemUsername anonymous Hours a day, 7 days a week 847 262 Access by Digital Modem408 727 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 Index AdminNumbers 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