Intel 10/100 manual Cabling Requirements, UTP requirements, Fiber optic requirements

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C H A P T E R 1 Hardware Installation and Network Topology

Cabling Requirements

Incorrect cabling is often the cause of network configuration problems. It’s important that you understand cabling requirements before connecting devices to the switch.

UTP requirements

The 100BASE-TX Fast Ethernet specification requires you use Category 5 unshielded twisted-pair (CAT 5 UTP) cabling to operate at 100 Mbps per second. If you use lower grade cabling (CAT 3 or CAT 4), you may get a connection, but will soon experience data loss or slow performance.

The 10BASE-T Ethernet specification allows you to use CAT 3, CAT 4, or CAT 5 UTP cabling.

You’re limited to 100 meters between any two devices with UTP cable whether you’re running at 10 Mbps or 100 Mbps. However, you can extend the total diameter by installing a fiber optic media adapter and using fiber optic connections between switches, or between the switch and a hub (repeater), router or bridge. See page 12 for an example.

Fiber optic requirements

The optional 100BASE-FX fiber optic media adapter (Intel product code ES101MAFX) lets you use multimode fiber optic cable to connect two switches, or to connect the switch to a hub, bridge, or router. The media adapter uses an SC fiber optic connector.

With multimode fiber optic cable, signals can travel up to 412 meters between two switches or between the switch and a router when the link is configured at half duplex. If configured at full duplex, the signal can travel up to 2 kilometers.

The signal can travel up to 160 meters between the switch and a hub (repeater). Full duplex isn’t possible between the switch and a hub.

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Contents User Guide First edition Contents Chapter Troubleshooting Next steps Optional Connect the network devices to the switchCheck the LEDs for power and links Press Eand log into the Console Manager Baud Data bits No parity Stop bit Xon/Xoff flow controlOverview Topology Intel Express 10/100 Fast Ethernet Switch Installation and SetupRcv Using the SwitchPort status LEDs XmtLink Management status LEDsFiber optic requirements Cabling RequirementsUTP requirements NIC RJ-45 MDI Straight-through vs. crossover cablesDetermining which cable to use Configuring the mixed 10 Mbps workgroup environment Typical ConfigurationsConfiguration guidelines A P T E R 1 Intel Express 10/100 Fast Ethernet Switch Full duplex and flow control between Express 10/100 switches One repeater hop for Repeater count limitationsGeneral rule for Configuring Accessing the Console Manager remotely Accessing the Console ManagerMeans you can type one of the following Using the Console ManagerEntering commands Vlan Console Manager command groups Sample Console Manager Session Procedures using this diagramSet the IP configuration. Type the command Configuring the Snmp agent for IPCommands used To configure the Snmp agentRecommended environments Configuring a port for full duplexTo configure a port for full duplex To create an Svlan Creating Virtual LANs VLANsTo create a VBD Create the two SVLANs. Type the commandsMonitoring traffic To check traffic on a port Detecting speed mismatches Detecting faulty adapters or hub portsDetecting bad or poor quality cable Detecting congested segmentsStatistic Definitions Configuring and Managing the Switch Reference Group to display commands relevant to that groupSystem Commands Console Command-line SummaryConsole Commands IP Commands Snmp Commands Virtual LAN Vlan Commands Switching Database CommandsSpanning Tree Commands Switching Statistics Commands Port Configuration CommandsLogout Console CommandsHelp-kbd BannerSys-stat System CommandsSet-passwd Set-stst-level Warm-resetCold-reset Get-stst-levelSet-sw-file Init-nvramSet-line-slip Get-sw-fileSw-dnld Set-rsw-fileGet-tftp-srvr Set-tftp-srvrIP configuration IP CommandsSet-ip-conf Get-bootpSet-bootp Set-ipGet-gatew Get-slip-confSet-slip Set-slip-confStops the active ping process. You can also press cC Ping CommandsPing Ping-stopDel-arp-entry Address Resolution Protocol ARP CommandsGet-arp-tbl Add-arp-entrySet-comm Snmp CommandsSnmp community strings Get-commGet-traps Snmp trap message commandsGet-auth Set-authRemoves a station from the trap table Switching Database CommandsAdd-trap Del-trapGet-lt-entry Database control commandsFF-FF-FF-FF-FF-FF Get-lt-16Add-lt-entry Find-lt-addrDel-lt-entry Del-lt-addrSet-lt-age Custom filteringGet-lt-age Add-cf-entry Get-lt-filterDisplays the custom filter table stored in Nvram Vlan CommandsDel-cf-entry Get-nv-cftblGet-vbc-matrix Get-con-matrixSet-sec-vlan Set-vbc-domainDel-vbc-domain Get-vbc-tblMonitor Get-svlan-tblDisplays the table of defined SVLANs Set-mon-portExample Spanning Tree CommandsGet-st-bcfg Get-stpSet-stp Displays the spanning tree state for all ports Get-st-pcfgGet-st-syscfg Set-br-hellot Set-br-prioSet-br-maxage Set-prt-pcost Set-br-fwdelSet-prt-prio Set-prt-enbGet-port-cfg Port Configuration CommandsUse these commands to configure and display port settings Displays the current port configurationSet-port-fctrl Statistics CommandsSet-port-dplex Set-speed-selGet-colls-cnt Get-eth-cntGet-br-cnt Get-rmon-cntGet-sdist-cnt Displays the Rmon statistics packet size histogram for port2905033 Bytes Received Get-mgm-brcnt Troubleshooting General Problems Troubleshooting Flow Control ProblemsIntel Express 10/100 Fast Ethernet Switch System Default ConfigurationSpanning tree Not installed see Accessories on nextPorts Console ManagerStatus Indicators per port SpecificationsFeatures AccessoriesMaximum Cabling Distances General IndicatorsBoot and Configuration Connector InterfacesAC line frequency 47Hz-63Hz Fuse 100-120V/4A 200-240V/2A Electrical SpecificationsPower Cord Specifications Electromagnetic Emissions and Safety Agency ApprovalSnmp and MIB Support Limited Hardware Warranty Limited Hardware Warranty Europe only Avertissement Warnung Displaying current state, 44 enabling or disabling IndexControl commands Get-authcommandGet-bootpcommand Database, switchingGet-trapscommand Get-port-cfgcommand, 22Get-slipcommand Get-stpcommandMIB Set-commcommandXmt Transmit LED Set-slipcommandSet-stpcommand World Wide Web & Internet FTP Intel BBS Troubleshooting Software updates Installation notesHow to access