User GuideTable of ContentsAbout This Guide15Introduction15How to Use This Guide16Conventions16Year 2000 Compliance17CoreBuilder 2500 Documentation18Paper Documents18Documents on CD19Documents on theWeb19Documentation Comments19Getting Started21CoreBuilder 2500 ExtendedSwitching Features23About CoreBuilder2500 Extended Switching23Using Menus24Extended Switching Features25Bridge Menus25IP Menus26IPX Menus29AppleTalk Menus30Virtual LAN Technology31VLANs on the CoreBuilder2500System33About VLANs33Types of VLANs33Port Group VLANs34MAC Address Group VLANs34Application-Oriented VLANs34Protocol-Sensitive VLANs35CoreBuilder 2500 Protocol-Sensitive VLAN Configura...35Protocol Suite35Switch Ports36Layer 3 Addressing Information36Default VLAN37Modifying the Default VLAN37Flooding Decisions in the CoreBuilder250037VLAN Exception Flooding38Overlapped IP VLANs39Routing Between VLANs40VLAN Configuration Examples41About Routing Protocols43Bridging and Routing in the CoreBuilder 2500 Syste...45What Is Routing?45CoreBuilder 2500 in a Subnetworked Environment46Integrating Bridging and Routing47Bridging and Routing Models48Traditional Bridging and Routing48CoreBuilder 2500 Bridging and Routing50Routing with IP Technology53IP Routing and the OSI Reference Model53Elements of IP Routing54IP Addresses54Network Part55Subnetwork Part55Router Interfaces56Routing Table57Default Route58Address Resolution Protocol (ARP)59IP Routing Transmission Errors60Routing with Classical IP over ATM61About Logical IP Subnets (LISs)61ATM ARP Servers62Forwarding to Nodes Within a LIS62IP Routing References63Routing with IP Multicast65About IP Multicast Routing65IGMP66DVMRP66MBONE66Multicast Routing Algorithms67Flooding67Spanning Tree67Reverse Path Forwarding68Pruning68Multicast Interfaces69DVMRP Metric Value69Time-To-Live (TTL) Threshold69Rate Limit69Multicast Tunnels69Routing with IPX71IPX Routing in theNetWare Environment71Internet Packet Exchange (IPX)73Routing Information Protocol (RIP)73Service Advertising Protocol (SAP)73How IPX Routing Works74IPX Packet Format74IPX Packet Delivery75Sending Node’s Responsibility76Router’s Responsibility77Elements of IPXRouting77Router Interfaces77Routing Tables78Generating Routing Table Information79Selecting the Best Route80Service Advertising Protocol in IPX80Internetwork Service Information80SAP Packet Structure80Server Information Tables82Server Information Maintenance84Routing with OSPF85Elements of OSPF Routing87Autonomous Systems87Areas87Area Border Routers88Routing Databases89Neighbors90Protocol Packets91Router Types91Router IDs92Interface Characteristics93Mode93Priority93Area ID94Cost94Delay94Hello Timer94Retransmit Timer94Dead Interval95Password95Stub Default Metrics95Virtual Links95How OSPF Routing Works96Starting Up96Finding Neighbors96Establishing Adjacencies96Electing the Backup Designated Router96Electing the Designated Router97Calculating Shortest Path Trees97Routing Packets98Routing with AppleTalkTechnology99About AppleTalk99AppleTalk Network Elements99AppleTalk Networks100AppleTalk Nodes100Named Entities100AppleTalk Zones100Seed Routers102AppleTalk Protocols102Physical Layer Protocols103Link Layer Protocols103Network Layer Protocols103Transport Layer Protocols103Routing Table Maintenance Protocol (RTMP)104AppleTalk Echo Protocol (AEP)106AppleTalk Transaction Protocol (ATP)106Name Binding Protocol (NBP)106Session Layer Protocols106AppleTalk Data Stream Protocol (ADSP)106Zone Information Protocol (ZIP)106AppleTalk Session Protocol (ASP)107Printer Access Protocol (PAP)107Presentation Layer Protocols107About AARP108Administering Extended Switching Features109Administering VLANs111Displaying VLAN Information111Defining VLAN Information113Modifying VLAN Information114Removing a VLAN Definition115Administering IP Routing117Administering Interfaces118IP VLAN Interfaces118IP LIS Interfaces118Interface Characteristics118Displaying Interfaces119Defining an IP VLAN Interface120Defining an IP LIS Interface121Modifying an Interface122Removing an Interface122Adding a Permanent Virtual Circuit (PVC)123Removing a Permanent Virtual Circuit (PVC)123Administering Routes124Displaying the RoutingTable125Defining a Static Route125Removing a Route126Flushing a Route126Setting the DefaultRoute126Removing the DefaultRoute127Administering the ARP Cache127Displaying the ARPCache127Removing an ARP Cache Entry128Flushing the ARP Cache128Administering ATM ARP Servers129Displaying ATM ARP Servers129Defining an ATM ARP Server129Removing an ATM ARP Server130Displaying the ATM ARP Cache130Removing an ATM ARP Cache Entry131Flushing the ATM ARP Cache131Administering UDPHelper131Displaying UDP HelperInformation132Defining a Port and IPRouting Address132Removing a PortNumber and IPRouting Address132Setting the BOOTP Hop Count Limit133Setting the BOOTP Relay Threshold133Configuring Overlapped Interfaces134Enabling and Disabling IP Routing134Enabling and Disabling ICMP Router Discovery135Configuring RIP135Displaying the RIP Interface Configuration135Setting the RIP Mode136Setting the RIP Interface Cost136Setting the Poison Reverse Mode137Adding an RIP Advertisement Address137Removing an RIPAdvertisement Address138Displaying RIP General Statistics138Pinging an IP Station139Displaying IP Statistics140Administering IPMulticastRouting145Enabling and Disabling DVMRP145Enabling and Disabling IGMP146Administering IP Multicast Interfaces147Multicast Interface Characteristics147Displaying Multicast Interfaces147Enabling Multicast Interfaces148Disabling Multicast Interfaces148Administering Multicast Tunnels149Displaying Multicast Tunnels149Defining a Multicast Tunnel150Removing a Multicast Tunnel150Displaying Routes151Displaying the Multicast Cache152Administering IPX Routing155Administering Interfaces156Displaying IPX Interfaces157Defining an Interface157Modifying an Interface158Removing an Interface158Administering Routes158Displaying the RoutingTable159Defining aStaticRoute159Removing a Route160Flushing Routes160Administering Servers160Displaying the ServerTable161Defining a Static Server161Removing a Server162Flushing Servers162Setting IPX Forwarding162Setting the RIP Mode163Setting the Enhanced RIP Mode163Setting RIP Triggered Updates164Setting the SAP Mode164Setting SAP Triggered Updates165Displaying Statistics165Displaying IPX Summary Statistics165Displaying IPX RIP Statistics166Displaying IPX SAP Statistics167Displaying IPX Forwarding Statistics168Administering OSPF Routing169Administering Areas169Displaying Areas170Defining Areas170Modifying Areas171Removing Areas171Adding NetworkRanges172Modifying NetworkRanges172Removing NetworkRanges173Setting the Default Route Metric173Displaying Default Route Metrics173Defining Default Route Metrics174Removing Default Route Metrics174Configuring OSPF Interfaces174Displaying OSPF Interface Information175Displaying OSPF Interface Statistics176Setting Modes178Setting Priorities179Setting Area IDs179Setting Costs180Setting TransmitDelays180Setting HelloTimers181Setting RetransmitTimers181Setting DeadIntervals182Setting Passwords182Displaying the Link State Database183Displaying a Database Summary183Displaying RouterLSAs184Displaying NetworkLSAs186Displaying Summary Network LSAs187Displaying External Network LSAs188Administering Neighbors189Displaying Neighbors189Adding Neighbors190Removing Neighbors190Setting OSPF Router IDs191Administering Memory Partitions192Displaying Memory Partitions192Modifying Memory Partitions192Administering Stub Default Metrics193Displaying Stub Default Metrics193Defining Stub DefaultMetrics193Removing Stub Default Metrics193Administering Virtual Links194Displaying VirtualLinks194Defining VirtualLinks194Modifying VirtualLinks195Removing VirtualLinks195Displaying OSPF Statistics196Administering AppleTalk Routing197Administering Interfaces197Displaying AppleTalk Interfaces198Defining an Interface199Removing an Interface200Administering Routes200Displaying the RoutingTable200Flushing all Routes201Administering the AARP Cache202Displaying the AARPCache202Removing anAddress fromtheCache203Flushing All CacheEntries204Displaying the ZoneTable204Configuring Forwarding206Configuring Checksum206Pinging an AppleTalkNode207Viewing AppleTalk Statistics207Displaying DDP Statistics207Displaying RTMP Statistics209Displaying ZIP Statistics210Displaying NBP Statistics212RMON and the CoreBuilder 2500 System213Remote Monitoring (RMON) Technology215Overview215RMON Benefits216RMON in the CoreBuilder 2500216RMON Groups217Statistics and axFDDIStatistics Groups218History and axFDDIHistory Groups219Alarm Group219Setting Alarm Thresholds220RMON Hysteresis Mechanism221Host Group222HostTopN Group222Matrix Group222Event Group2223Com Transcend RMON Agents223RMON Management Information Base(MIB)224MIB Objects224Appendix227Technical Support229Online Technical Services229World Wide Web Site2293Com FTP Site2303Com Bulletin Board Service230Access by Analog Modem230Access by Digital Modem2313ComFacts Automated Fax Service231Support from Your Network Supplier231Support from 3Com231Returning Products forRepair233Index235Size: 1.13 MBPages: 244Language: EnglishOpen manual
Quick Setup GuideTable of ContentsContents5About This Guide9Introduction9How to Use This Guide9Conventions10CoreBuilder 2500 Documentation11Paper Documents11Documents on CD-ROM12Documentation Comments12System and Setup Overview13About CoreBuilder Switching Hubs13The CoreBuilder 2500 System Solution13Features of the CoreBuilder 2500 System14System Overview — Front Panel15System Overview — Back Panel16Modules17CoreBuilder Roadmap of Setup Tasks18Installing the System19Before You Begin19Installing the CoreBuilder System on a Table Top o...20Installing the CoreBuilder System in a Distributio...20Preparing the System and Rack20Mounting the CoreBuilder System into a Distributio...22Installing Modules25Avoiding ESD Damage25Installing a Module25Cabling27Ethernet Modules2710BASE-T (RJ-21) Module2810BASE-T (RJ-21) Configuration28Cabling the 10BASE-T (RJ-21) Module30Connecting 10BASE-T (RJ-21) to a Harmonica Panel30Connecting 10BASE-T (RJ-21) to a Punch-down Block3110BASE-T (RJ-45) Module3210BASE-T (RJ-45) Configuration32Cabling the 10BASE-T (RJ-45) Module3310BASE-5 (AUI) Module3410BASE-5 (AUI) Configuration34Cabling the 10BASE-5 (AUI) Module3510BASE-FL Module3610BASE-FL Configuration36Cabling the 10BASE-FL Module3710BASE-2 (BNC) Module3810BASE-2 (BNC) Configuration38Cabling the 10BASE-2 (BNC) Module39Unterminated 10BASE-2 (BNC)40Unterminated 10BASE-2 (BNC) Configuration40Cabling the Unterminated 10BASE-2 (BNC) Module40Fast Ethernet Modules42100BASE-TX Module42100BASE-TX Configuration42Cabling the 100BASE-TX Module42100BASE-FX Module43100BASE-FX Configuration43Cabling the 100BASE-FX Module43FDDI Modules44FDDI Configurations45CoreBuilder 2500 System Connection to an FDDI Dual...45Configuring a DAS for Dual Homing46Using an Optical Bypass Switch with the CoreBuilde...47Cabling the FDDI DAS MIC Module48Cabling the FDDI DAS TP Module49ATM Module50ATM Configuration50Cabling the ATM Module51Cabling the Optical Bypass Switch52Cabling the System Processor Serial Ports53Serial Port Pin Assignments54System Power Up55Power Up55Power-up Diagnostics56System Diagnostics — LED Activity56Module Diagnostics — LED Activity56System Processor LEDs57System Checks58The Next Step: Software Configuration58Quick Setup for Management Access59About CoreBuilder 2500 System Management59How Do You Want to Manage the System?59Terminal Port60Modem Port60IP Interface60Initial Management Access60Setting the Terminal Port Baud Rate61Modem Setup62Setting the Modem Port Baud Rate62Connecting to an External Modem62IP Interface Configuration63Troubleshooting the System65Diagnosing Problems65Power Failures65Abnormal LED Activity65Related Maintenance Procedures69Checking the CoreBuilder System Fuses69Removing the Fuse69Installing a New Fuse70Cleaning Dirty Fiber Optic Ports and Connectors71System Specifications73Module and System Pinouts75Ethernet Module Pin Assignments75Optical Bypass Connector Pin Assignments77Serial Port Pin Assignments77Site Requirements and Safety Codes79General Safety Requirements79Wiring Closet Recommendations79Distribution Rack Requirements80Protective Grounding for the Rack80Space Requirements for the Rack80Mechanical Requirements for the Rack81Building and Electrical Codes82Building Codes82Electrical Codes83FDDI Standards85Multimode Fiber Standards85Comparing Fiber to Specifications86Calculating Insertion Losses for Unlike Fibers87Example88Verifying Modal Bandwidth88Example89Single Mode Fiber Standards89Comparing Fiber to Specifications90Verifying Maximum Attenuation for Mixed Fibers91Example91Using Unkeyed Single Mode Cables91Technical Support93Online Technical Services93World Wide Web Site933Com Bulletin Board Service93Access by Analog Modem93Access by Digital Modem943ComFacts Automated Fax Service943ComForum on CompuServe Online Service95Support from Your Network Supplier95Support from 3Com95Returning Products for Repair96Glossary97Index1053Com Corporation Limited Warranty109Size: 1000 KBPages: 110Language: EnglishOpen manual
