Nortel Networks 70 Series manual Features, MAC Address Quantities

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Introduction

Cooling Fans

Variable-speed cooling fans in the BayStack 70-16T 10/100 Ethernet Switch and BayStack 70-24T 10/100 Ethernet Switch provide cooling for the internal components. When you install the switch, be sure to allow enough space on both sides of the switch for adequate air flow around the switch.

Features

The BayStack 70 Series 10/100 Ethernet Switches has the following key features:

Eight (BayStack 70-8T 10/100 Ethernet Switch), 16 (BayStack 70-16T 10/ 100 Ethernet Switch), or 24 (BayStack 70-24T 10/100 Ethernet Switch) autosensing 10/100 Mb/s Ethernet ports to provide fast information exchange, resource sharing, and client or peer-to-peer communication using standard Category 5 unshielded twisted pair (UTP) cable

Automatic address learning to build MAC frame forwarding information tables, as shown in Table 1-2

Table 1-2. MAC Address Quantities

Model

MAC Addresses in Information Table

BayStack 70-8T Up to 8,000 MAC addresses are supported. Therefore, the switch 10/100 Ethernet can support networks with up to 8,000 devices.

Switch

BayStack 70-16T Up to 12,000 MAC addresses are supported. Therefore, the switch 10/100 Ethernet can support networks with 12,000 devices.

Switch

BayStack 70-24T Up to 12,000 MAC addresses are supported. Therefore, the switch 10/100 Ethernet can support networks with up to 12,000 devices.

Switch

206375-A

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Contents Installation and Reference for Copyright 1999 Nortel Networks Iii Statement of Conditions Restricted Rights LegendNortel Networks NA Inc. Software License Agreement 206375-A Contents Chapter Troubleshooting Figures 206375-A Tables Xii Purpose PrefaceHard-Copy Technical Manuals AudienceTechnical Solutions Center Telephone Number How to Get HelpPage Chapter Introduction BayStack 70 Series 10/100 Ethernet Switches OverviewFront Panel Physical DescriptionFront Panel of the BayStack 70-8T 10/100 Ethernet Switch RJ-45 10BASE-T/100BASE-TX Ethernet Ports LEDs Type Label Color Activity Description Description of Switch and Port Status LEDsRear Panel of the BayStack 70-24T 10/100 Ethernet Switch DC Power Adapter MAC Address Quantities FeaturesModel MAC Addresses in Information Table Model Buffer Size Buffer SizesModel External Power Adapter External Power AdaptersPage Benefits of Using Switching Technology Chapter Network ConfigurationTypes of Ethernet Switches Before Desktop SwitchingSegment Switching Before After Extending a Network Bridging 10 Mb/s Networks to 100 Mb/s Networks Bridging from 10BASE-T to 100BASE-TX NetworksPower Workgroup Connections Power WorkgroupsPackage Contents Chapter InstallationOperating Environment Power SpecificationsSet the switch on a desktop or any other flat surface Installing the SwitchAttach any additional devices to the ports in your switch Installing the Switch in a Rack Connecting Devices to the SwitchConnecting Power Verifying Installation BayStack 70-24T 10/100 Ethernet Switch LED Display Checking the Diagnostic DisplaysDescription of Switch and Port Status LEDs Page Using the LED Display Chapter TroubleshootingPage Product Specifications Appendix a Technical SpecificationsTable A-1 Technical Specifications Environmental Specifications Physical SpecificationsElectromagnetic Emissions Performance Specifications Safety Agency ApprovalsElectromagnetic Susceptibility Page Table B-1 RJ-45 Connector Pin Assignments Appendix B Cables and Connectors10BASE-T/100BASE-TX UTP Cable RJ-45Figure B-1. Straight-Through Twisted-Pair Cable Straight-Through and Crossover CablesNumbers IndexIndex-2