3Com DUA1698 manual Configuration Rules with Full Duplex

Page 21

Configuration Rules with Full Duplex

21

The key topology rules are:

■Maximum UTP cable length is 100m (328ft) over Category 5 cable.

■A 412m (1352ft) fiber run is allowed for connecting switch-to-switch, or endstation-to-switch, using half-duplex 100BASE-FX.

■A total network span of 325m (1066ft) is allowed in single-repeater topologies (one hub stack per wiring closet with a fiber run to the collapsed backbone). For example, a 225m (738ft) fiber link from a repeater to a router or switch, plus a 100m (328ft) UTP link from a repeater out to the endstations.

Configuration Rules The Switch provides full duplex support for all its ports. Full duplex allows

with Full Duplex packets to be transmitted and received simultaneously and, in effect,

doubles the potential throughput of a link.

With full duplex, the Ethernet topology rules are the same, but the Fast

Ethernet rules are:

■Maximum UTP cable length is 100m (328ft) over Category 5 cable.

■A 2km (6562ft) fiber link is allowed for connecting switch-to-switch, or endstation-to-switch.

Image 21

Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents PIN-OUTS Page Page About this Guide Conventions Icon DescriptionConvention Description Documentation RelatedCompliance YearComments ProductIntroducing the Switch 3300 XM Summary of Features About SuperStack Switch 3300 XMSwitch 3300 XM front view Switch 3300 XM Front View DetailPower/Self Test LED Color Indicates Port Status LEDsUnit LEDs Power Socket Switch 3300 XM Rear View DetailUnits on Segmentation Switch ConfigurationNetwork ExamplesUsing the Switch as a collapsed backbone SwitchSwitch Fast Ethernet configuration rules Configuration Rules with Full Duplex Introducing the Switch 3300 XM Installing the Switch Rack-mounting Repeat steps 2 and 3 for the other side of the Switch 3C16965. Contact your supplier for details Stacking UnitsYou need only one SuperStack 3 Switch 3300 MM per stack Stack of three units Powered-up and ready for operation Power-upSwitch 3300 XM SequenceChoosing Correct CablesColor State Problem Managing SwitchSafety Information Important Safety InformationPersonnel only Important Safety Information Sécurité Importante ’information de’information de Sécurité Importante Wichtige Sicherheitsinformat ionen PC-AT Serial Cable PIN-OUTSModem Cable Pin Number Signal FunctionRJ45 Pin AssignmentsPin Number Signal Function Appendix B PIN-OUTS Safety Physical DimensionsPower Supply Environmental RequirementsVlan MIB RFC Online Technical ServicesUsername anonymous Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle EastCountry Telephone Number Fax Number Glossary Broadcast BridgeCollision EndstationPage Loop Line speedMulticast ProtocolStack ServerSuperStack TelnetGlossary Index Index 3Com Corporation Limited Warranty Page Disclaimer Regulatory Notices