Nortel Networks 207344-B manual Physical Description of the Switch Modules

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Using the Centillion EtherSpeedII Switch Modules

MPOA is the ATM Forum standard that specifies a method to efficiently transport intersubnet unicast data in a LAN emulation (LANE) environment. MPOA uses LANE and Next Hop Resolution Protocol (NHRP) processes to allow direct shortcut virtual channel connections (VCCs) to be established for intersubnet communication without requiring passage through a router. The intrasubnet communication continues to be supported over LANE. For IP, Nortel Networks has adopted MPOA as the standard to implement layer 3 switching in an ATM network.

•Improved performance in segmentation and reassembly (SAR) performance to 3.2 gigabits per second (Gb/s).

•MultiLink Trunking (MLT)

Physical Description of the Switch Modules

The EtherSpeedII 10/100BASE-T switch module (Figure 1-2) consists of a printed circuit board with a metal module faceplate. The switch module includes captive retaining screws and inserter/extractor levers on the top and bottom of the front panel.

Captive retaining

screws LEDs

Inserter/extractor levers

20 10/100BASE-T ports (RJ-45)

Backplane connector

Printed circuit board

9454FA

Figure 1-2. EtherSpeedII 10/100BASE-T 20-Port Switch Module

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207344-B

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Contents Using the Centillion EtherSpeedII Switch Modules USA Requirements Only TrademarksStatement of Conditions European Requirements OnlyTaiwan Requirements Japan/Nippon Requirements OnlyCanada Requirements Only Nortel Networks Software License Agreement 207344-B 207344-B Contents Chapter Troubleshooting 207344-B 207344-B Figures Xii Tables Xiv Preface Before You BeginRelated Publications Hard-Copy Technical ManualsHow to Get Help Technical Solutions Center Telephone NumberPage Overview of the EtherSpeedII Switch Modules Overview of the Switch ModulesFeatures of the Switch Modules EtherSpeedII Switch Modules in a Network CenterOverview of the EtherSpeedII Switch Modules Physical Description of the Switch Modules EtherSpeedII 10/100BASE-T 20-Port Switch ModuleEtherSpeedII 100BASE-FX 16-Port Switch Module LED Displays on the Switch Modules LEDs on the EtherSpeedII 10/100BASE-T Switch ModuleSwitch Configuration and Management Network Management Applications and FeaturesMCP Modules Command Line InterfaceSnmp MIB Support Support for Virtual LANs Tftp SupportSpanning Tree Protocol 802.1d Support Filtering10/100 Mb/s Autonegotiation Ports Hot-Swapping CapabilityChapter Planning a Network with EtherSpeedII Switch Modules EtherSpeedII 10/100BASE-T Switch ModuleNetwork Configuration Examples EtherSpeedII 100BASE-FX Switch ModuleNetwork Example Giving a Server a Dedicated Port AfterReplacing a Bridge Replacing a BridgeDesktop Switch with ATM Uplinks Data Center ATM RouterSegment Switch in an Enterprise Network Data CenterDesktop Switch and Frame-to-Cell Converter Wiring ClosetMultiLink Trunking MultiLink Trunking ExampleDefault Port Configuration Factory Default Settings for the 10/100BASE-T Switch ModulePredefined SpeedView Configurations ATMPage Installing the EtherSpeedII Switch Modules Preparing for InstallationInstalling a Switch Module SafetyRemove the filler panel Slot Module Guides Seating the Module Checking LEDs on the Switch Modules LED Display for the 10/100BASE-T switch moduleLED Display for the EtherSpeedII 100BASE-FX Switch Module Making 10/100 Mb/s Cable Connections Removing a ModuleWait 45 seconds Installing the Replacement Switch Module Reconfiguring the Replacement Switch ModuleChapter Troubleshooting EtherSpeedII Switch Module Startup Failure Port Connection Problems From the Map window, choose StatisticsFrom the Map window in SpeedView, choose Statistics Appendix a Technical Specifications StandardsMemory Technical Specifications Page Appendix B Cables and Connectors UTP Cable Length LimitationsUTP Cabling 10BASE-T/100BASE-TX MDI Ports and MDI-X PortsFigure B-2. MDI-X to MDI-X External Crossover RJ-45 Example Figure B-3 illustrates an MT-RJ connector UTP Cables and Connectors Figure B-4 BASE-T/100BASE-TX Ethernet UTP Crossover CableUsing Category 5 Unshielded Twisted Pair Cables Using Shielded Twisted Pair Cables Figure B-5. Fast Ethernet Type 1 Balun Media AdapterPage Appendix C LED Displays on EtherSpeedII Switch Modules Label Color/Status Meaning LED Displays on the EtherSpeedII Switch Modules Table C-2. LEDs on the EtherSpeedII 100BASE-FX Switch Module Index NumbersIndex-2 Index-3 Index-4