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Intel 654655-001 manual Straight-throughvs. crossover cables, Connector pinouts

Models: 654655-001

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

NOTE

When making your own cables, wires 1 and 2 must be a twisted pair and 3 and 6 must be a twisted pair.

Straight-through vs. crossover cables

Ports on the switch are wired MDI so you can use a straight-through cable when connecting to a Fast Ethernet repeating hub port, which is usually wired MDI-X. For direct connection to another MDI port (workstation, server, or another switch), you must use a crossover cable. The pinouts of MDI and MDI-X ports are shown below.

Connector pinouts

Switch or NIC RJ-45 (MDI)			Hub RJ-45 (MDI-X)

1	TX+		1	RX+

2	TX-	2		RX-
3	RX+	3		TX+
4	Unused	4		Unused
5	Unused	5		Unused
6	RX-	6		TX-
7	Unused	7		Unused
8	Unused	8		Unused

Determining which cable to use

Different switch and repeater manufacturers implement their port configurations differently. The following guidelines are based on the Intel Express 100BASE-TX Switching Hub (switch), the Intel Express 100BASE-TX Stackable Hub (repeater) and the EtherExpress™ family of adapters (server or workstation). These apply to the majority of switches and hubs:

For this connection		Use this cable

Switch to repeater		Straight-through

Switch to server or workstation		Crossover
Switch to switch		Crossover
Repeater to server or workstation		Straight-through

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Intel 654655-001 manual Straight-throughvs. crossover cables, Connector pinouts, Determining which cable to use

Contents

User Guide Intel Express 100BASE-TXSwitching HubFirst edition Hardware Installation and Network Topology ContentsConfiguring and Managing the Switch Quick StartChapter TroubleshootingAppendix A Technical InformationConsole Mgmt Quick StartOptional Quick Start for SNMP Management and Network Hardware InstallationTopology OverviewFeatures 1 Install the switch in a rack or on a shelf Installation and Setup2 Plug the switch in and turn the power on 4 Is setup complete?Port status LEDs Using the SwitchConsole Mgmt Management status LEDsUTP requirements Cabling RequirementsFiber optic requirements Straight-throughvs. crossover cables Connector pinoutsDetermining which cable to use Configuring the 100 Mbps workgroup environment Typical Configurations100 Mbps clients using 100 Mbps clients usingor Switch of Configuring the Wide Area Network WAN environmentSwitches BackboneSwitching Hub Connecting to a 10 Mbps segmentServer equipped with two adapters, one atRepeater count limitations Excessive flow control problemsBy default, flow control is enabled on all ports Page Managing the Switch Configuring andAccessing the Console Manager remotely Accessing the Console ManagerConsole Mgmt Entering commands Using the Console ManagercP at the prompt Configuring a port for full duplex Console Manager command groupsCommands used To configure a port for full duplex Configuring the SNMP agent for IPCommands used To configure the SNMP agentCommands used Monitoring trafficTo check traffic on a port Creating VLANs To create a VBD To create an SVLANCreating custom filters Configuring the spanning treeTo set a custom filter Console Command Referencehelp-kbd loginbanner clearlogout System commandsset-prompt set-passwdcold-reset warm-resetsys-stat init-nvram get-last-errset-line-slip set-sw-fileset-par-file IP commandsset-fg-param start-fgget-ip IP Configurationget-ip-conf set-ipset-bootp get-bootpset-ip-conf get-slipC H A P T E R ping-stop Address Resolution Protocol ARP Commandsget-arp-tbl SNMP community strings SNMP commandsset-comm SNMP trap message commandsget-auth set-authadd-trap Switching database commandsdel-trap The entry has these properties get-lt-16 Configuring and Managing the SwitchC H A P T E R del-lt-entry find-lt-addrdel-lt-addr get-lt-age add-lt-entryset-lt-age get-lt-filter Custom filteringadd-cf-entry get-nv-cftbl del-cf-entryget-nv-cfilt C H A P T E Rget-con-matrix VLAN commandsget-vbc-matrix del-vbc-domain set-vbc-domainget-vbc-tbl set-sec-vlandel-sec-vlan Spanning tree commandsget-svlan-tbl set-mon-portset-stp get-stpget-st-bcfg get-st-pcfgset-br-fwdel set-br-hellotset-prt-prio set-prt-enbget-port-cfg Port configuration commandsset-port-dplex set-port-fctrl Switching statistics commandsclr-cnt get-eth-cntget-rmon-cnt get-colls-cntC H A P T E R packets or bytes received packets forwarded get-mgm-brcnt Configuring and Managing the SwitchC H A P T E R Console Commands Console command-linesummarySystem Commands IP CommandsSNMP Commands IP Commands con’tSwitching Database Commands Spanning Tree Commands Virtual LAN VLAN CommandsPort Configuration Commands C H A P T E R Switching Statistics CommandsPage 3 Troubleshooting message A Technical Information Default ConfigurationFeatures SpecificationsPorts Console ManagerGeneral Indicators Status Indicators per portBoot and Configuration Connector Interfaces230 volt configuration 115 volt configurationElectrical Specifications Power Cord SpecificationsSNMP and MIB Support Source Ports Custom Filter Port TableSource Ports con’t Destination Ports Destination Ports con’t 0,3,4,5,6 0,3,4,5,7 B9 0,3,4,6,7 D9 0,3,5,6,7 E9 FCC Notice Limited WarrantyManufacturer declaration A p p e n dPage I Index Page Page Page Page Page CompuServe World Wide WebIntel BBS FaxBack