Instrukcja dołączania Cabletron Systems Mmac Plus 9h533 24

Cabletron Systems Mmac Plus 9h533 24 to wielofunkcyjna przełącznik sieciowy umożliwiający podłączenie wielu urządzeń do sieci Ethernet. Przełącznik ten posiada 24 porty 10/100/1000 Mbps, które pozwalają łączyć urządzenia z siecią z prędkością do 1000 Mbps. Urządzenie jest wyposażone w szereg wbudowanych funkcji, w tym sterowanie ruchem, ochronę przed wirusami, ochronę przed atakami DDos i inne, które mogą pomóc w zapewnieniu bezpieczeństwa sieci. Instalacja przełącznika jest prosta, a używając załączonych instrukcji można w pełni wykorzystać wszystkie jego funkcje. Przełącznik Cabletron Systems Mmac Plus 9h533 24 jest idealnym rozwiązaniem dla firm i organizacji, które chcą zapewnić szybkie połączenie do sieci internetowej.

Ostatnia aktualizacja: Instrukcja dołączania Cabletron Systems Mmac Plus 9h533 24

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WORKGROUP
REMOTE ACCESS SWITCH
USER’S GUIDE
Release 7. 2
Cabletron Systems
(603) 332-9400 phone
(603) 337-3075 fax
support@ctron. com

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USER’S GUIDE Only qualified personnel should perform installation procedures.! CAUTION NOTICE You may post this document on a network server for public use as long as no modifications are made to the document. Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software
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TRADEMARKS Cabletron Systems, CyberSWITCH, MMAC-Plus, SmartSWITCH, SPECTRUM, and SecureFast Virtual Remote Access Manager are trademarks of Cabletron Systems, Inc. All other product names mentioned in this manual are trademarks or registered trademarks of their respective companies. COPYRIGHTS All of the code for this product is copyrighted by Cabletron Systems, Inc. © Copyright 1991-1997 Cabletron Systems, Inc. All rights reserved. Printed in the United States of America. Portions of the code
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USER’S GUIDE WARNING: Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. DOC NOTICE This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites a
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CONTENTS Using this Guide 23 Documentation Set 24 Guide Conventions 25 SYSTEM OVERVIEW 26 The CyberSWITCH 27 The CyberSWITCH Network 27 Unique System Features 28 Interoperability Overview 30 Interoperability Protocols 30 Interoperability Devices 31 Security Overview 32 Network Interface Overview 32 System Components 33 Remote ISDN Devices 34 Switches Supported 35 Hardware Overview 36 Safety Considerations 36 System Platforms 37 The CSX1000 and NE Link 1000 (a Network Express Product) 37 Platfor
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USER’S GUIDE SYSTEM INSTALLATION 54 Ordering ISDN Service (US Only) 56 Overview 56 Ordering NI-1 Lines Using EZ-ISDN Codes 56 Ordering NI-1 Lines Using NI-1 ISDN Ordering Codes 56 Ordering BRI ISDN Lines using Provisioning Settings 56 Provisioning Settings for AT&T 5ESS Switches 57 AT&T 5ESS NI-1 Service 58 AT&T 5ESS Custom Point-to-Point Service 59 Provision Settings for Northern Telecom DMS-100 Switches 60 Northern Telecom DMS100 NI-1 Service 60 Northern Telecom DMS100 Custom Service 61 Basic
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BASIC CONFIGURATION 82 Configuration Tools 83 Overview 83 CFGEDIT 83 Executing CFGEDIT 83 Saving CFGEDIT Changes 84 Dynamic Management 84 Executing Dynamic Management 84 Utility Dynamic Management Commands 85 Saving Dynamic Management Changes 85 Default Configuration 86 Using the Network Worksheets 86 Using the Configuration Chapters 87 Configuring Resources and Lines 88 Overview 88 Resources 88 Configuring Resources 88 Resource Configuration Elements 90 Resource Background Information 90 Lines
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USER’S GUIDE IP Network Interfaces 105 Configuring Interfaces 105 Network Interface Configuration Elements 107 IP Network Interface Background Information 112 IP RIP and the IP Network Interfaces 117 IP RIP over Dedicated Connections 120 IP Host Operating Mode and the IP Network Interfaces 122 Using Multiple IP Addresses 122 Static Routes 124 Configuring Static Routes 124 Static Route Configuration Elements 126 Static Route Background Information 128 Default Routes 129 Configuring Default Routes
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Configuring System Options and Information 146 Overview 146 System Options 146 Configuring System Options 146 System Options Configuration Elements 147 System Options Background Information 149 System Information 150 Configuring System Information 150 System Information Configuration Elements 150 System Information Background Information 151 Administrative Session 151 Configuring Administrative Sessions 151 Administrative Session Configuration Elements 152 Administrative Session Background Infor
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USER’S GUIDE Configuring Off-node Server Information 178 Overview 178 Multiple Administration Login Names 178 VRA Manager Authentication Server 179 Configuring VRA Manager Authentication Server 179 VRA Manager Authentication Server Configuration Elements 180 VRA Manager Authentication Server Background Information 180 RADIUS Authentication Server 180 Configuring a RADIUS Authentication Server 180 RADIUS Authentication Server Configuration Elements 182 RADIUS Authentication Server Background Info
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X. 25 Configuration Elements 201 X. 25 Line Configuration Elements 201 LAPB Configuration Elements 202 X. 25 Access Configuration Elements 203 PVC Configuration Elements 206 X. 25 Access Background Information 207 Current X. 25 Restrictions 209 Frame Relay Accesses 209 Configuring a Frame Relay Access 209 Configuring General Access Information 209 Configuring a PVC 210 Frame Relay General Configuration Elements 211 Frame Relay PVC Configuration Elements 212 Frame Relay Access Background Information 2
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USER’S GUIDE Configuring Advanced IP Routing 237 Overview 237 Static ARP Table Entries 238 Configuring Static ARP Table Entries 238 Static ARP Table Entries Configuration Elements 238 Static ARP Table Entries Background Information 238 The Isolated Mode 239 Configuring the Isolated Mode 239 Isolated Mode Configuration Elements 239 Isolated Mode Background Information 239 Static Route Lookup via RADIUS 239 Configuring Static Route Lookup via RADIUS 239 Static Route via RADIUS Configuration Elemen
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Configuring IPX 269 Overview 269 Configuring IPX Information 270 IPX Routing Option 271 Enabling/Disabling IPX 271 IPX Option Configuration Element 271 IPX Option Background Information 272 IPX Internal Network Number 272 Configuring the IPX Internal Network Number 272 IPX Internal Network Number Configuration Element 272 IPX Network Number Background Information 273 IPX Network Interfaces 273 Configuring IPX Network Interfaces 273 IPX Network Interface Configuration Elements 275 General IPX Net
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USER’S GUIDE IPX-Specific Information for Devices 292 Configuring IPX Devices 292 WAN Devices 292 Remote LAN Devices 295 IPX Configuration Elements for Devices 296 IPX Background Information for Devices 297 IPX Triggered RIP/SAP Device Background 297 Configuring SNMP 298 Overview 298 Configuring SNMP 298 SNMP Configuration Elements 300 SNMP Background Information 301 Configuring AppleTalk Routing 305 Overview 305 AppleTalk Routing Option 305 Enabling AppleTalk Routing 305 AppleTalk Routing Opti
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Call Interval Parameters 318 Configuring the Call Interval Parameters 318 Call Interval Configuration Elements 318 Call Interval Background Information 318 Monthly Call Charge 319 Configuring Monthly Call Charge 319 Monthly Call Charge Configuration Elements 319 Monthly Call Charge Background Information 319 Call Restrictions 320 Configuring Call Restrictions 320 Call Restriction Configuration Elements 320 Call Restrictions Background Information 322 Bandwidth Reservation 323 Configuring Bandwid
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USER’S GUIDE TFTP 348 Configuring TFTP 348 TFTP Configuration Elements 349 TFTP Background Information 349 File Attributes 350 Configuring File Attributes 350 File Attributes Configuration Elements 350 File Attributes Background Information 350 TROUBLESHOOTING 352 System Verification 353 Overview 353 Verifying Hardware Resources are Operational 353 Verifying WAN Lines are Available for Use 354 Verifying LAN Connection is Operational 354 Verifying Bridge is Initialized 355 Verifying IP Router is
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Verifying the AppleTalk Routing Feature 372 Verifying AppleTalk Routing is Initialized 372 Verifying AppleTalk Routing is Operational 373 Verifying AppleTalk Routing Operational over the LAN connection 374 Verifying AppleTalk Routing Operation over a WAN connection 374 Verifying SNMP is Operational 375 Verifying the Dial Out Feature 376 Verifying Call Detail Recording 376 Verifying Compression is Operational 377 Verifying Reserved Bandwidth is Operational 377 Verifying PPP Link Failure Detection
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USER’S GUIDE IP RIP 397 IP RIP Initialization 397 IP RIP Output Processing on a LAN Interface 398 IP RIP Input Processing on a LAN Interface 398 IP RIP Output Processing on a WAN Interface 399 IP RIP Input Processing on a WAN Interface 399 IPX Routing 400 IPX Routing Initialization 400 IPX Routing over the LAN Connection 400 IPX Routing over the Remote LAN Connection 401 IPX Routing over the WAN Connection 402 IPX Routing and Service Tables 403 Triggered RIP/SAP Start Up 404 Triggered RIP/SAP Op
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System Messages 426 Overview 426 Informational Messages 426 Boot Messages 427 Initialization Messages 427 Normal Operation Messages 427 Status Messages 427 Spanning Tree Messages 428 Warning Messages 428 Error Messages 428 System Message Summary 428 Trace Messages 487 Overview 487 Call Trace Messages 488 Call Trace Message Summary 489 IP Filters Trace Messages 494 PPP Packet Trace Messages 495 WAN FR_IETF Trace Messages 497 X. 25 Trace Messages 497 X. 25 Trace Message Summary 497 X. 25 (LAPB) Trace
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USER’S GUIDE Clearing Operational Information 522 Configuration-Related Commands 522 Restarting the CyberSWITCH 523 Setting the Date and Time 523 File Utility Commands 523 Terminating Administration Sessions 524 AppleTalk Routing Commands 525 Bridge Commands 530 Call Control Commands 531 Call Detail Recording Commands 534 Call Restriction Commands 534 Compression Information Commands 535 DHCP Commands 535 Frame Relay Commands 535 IP Routing Commands 537 IPX Routing Commands 542 ISDN Usage Comman
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MMAC-Plus 9A000, SFCS-200BX,
SFCS-200WG and SFCS-1000
ATM SWITCH
User’s Guide

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Notice Notice Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice. IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (I
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Notice FCC Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable pr
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Table of Contents Preface Technical Support....................................................................................................... vii Typographical Styles.................................................................................................. vii Important Information Indicators.......................................................................... viii Laser Warning............................................................................................
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Contents 3. 2. 4. 2 SFCS-1000 AC Power Supply (Model A).................................... 3-12 3. 3 SFCS-1000 AC Power Supply (Model B).................................... 3-15 3. 5 SFCS-1000 Fan Tray................................................................................ 3-18 3. 6 SFCS-1000 Temperature Sensing........................................................... 7 SFCS-1000 Common Equipment Card (CEC)..................................... 3-19 3. 7. 1 CEC Front
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Contents Chapter 6 Software Upgrade Instructions 6. 1 Obtaining the Software Upgrade File via Diskette......................................... 6-2 6. 2 Performing the Software Upgrade.................................................................... 6-4 6. 3 Changing between Multiple Versions of Software.......................................... 6-7 6. 4 Using bootp to Download Software to the Switch.......................................... 6-9 6. 1 Overview...........................
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Contents Appendix C Hardware Specifications C. 1. 1 SFCS-200WG............................................................................................ C-2 C. 2 SFCS-200BX.............................................................................................. C-3 C. 3 SFCS-1000.................................................................................................. C-4 C. 2 ATM Network Modules..................................................................................
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PREFACE This manual provides technical information needed to install and operate the TM Cabletron 9A000 and SecureFast Cell Switch-200BX ATM Switches. It pro- vides information for the 9A000 and SFCS-200BX switches and the user- installable network modules offering both LAN and WAN interfaces. This document also provides safety instructions, general product information, net- work configuration information and information on software administration capabilities. Technical Su
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PREFACE cd /usr Commands or file names that appear within the text of this manual will be represented in the following style: “... the fore_install program will install this distribution”. As in the following example, any messages that appear on your screen during software installation and network interface administration will appear in Courier font to distinguish them from the rest of the text..... Are all four conditions true? Important Information Indicato

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PREFACE Information contained in NOTE statements has been found important enough to be called to the special attention of the operator and will be set off from the text as follows: NOTE: Cabletron Systems strongly recommends that you disconnect the serial cable once you have configured the ATM switch and then access the switch over the ATM network. ix
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PREFACE Laser Warning Class 1 Laser Product: This product conforms to applicable requirements of 21 CFR 1040 at the date of manufacture. Class 1 lasers are defined as products which do not permit human access to laser radiation in excess of the accessible limits of Class 1 for applicable wave- lengths and durations. These lasers are safe under reasonably foreseeable conditions of operation. The following network modules contain Class 1 lasers: NM-2/155SMSRA-1 NM-2/155SMSRB-1 NM-2OC3/SMSRA-1
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PREFACE Safety Agency Compliance This preface provides safety precautions to follow when installing a Cabletron Systems, Inc., product. Safety Precautions For your protection, observe the following safety precautions when setting up your equipment: • Follow all warnings and instructions marked on the equipment. • Ensure that the voltage and frequency of your power source matches the voltage and frequency inscribed on the equipment’s electrical rat- ing label. • Never push objects of
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PREFACE Modifications to Equipment Do not make mechanical or electrical modifications to the equipment. Cabletron Systems, Inc., is not responsible for regulatory compliance of a modified product. Placement of a Cabletron Systems Product CAUTION To ensure reliable operation of your Cabletron Systems product and to protect it from over- heating, openings in the equipment must not be blocked or covered. A Cabletron Systems product should never be placed near a radia- tor or heat register.
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CHAPTER 1 Introduction The Cabletron 9A000 and SFCS series ATM Switch brings ATM connectivity to LAN workgroup, LAN backbone, and LAN/WAN internetworking applica- tions. Together with the Cabletron series of ATM Computer Interfaces, the 9A000 and SFCS series meet the networking demands of today’s distributed, time-critical applications. The Cabletron 9A000 and SFCS series ATM high-performance ATM switches deliver switching capacity and speed for ATM applications. A n
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Introduction communication) to be switched to multiple destinations by fast ATM switches such as the Cabletron 9A000 and SFCS series (connecting up to 64 workstations with an aggregate capacity of 2. 5 Gbps or 96 workstations running at 100 Mbps). Larger LANs can be built by interconnecting multiple 9A000 and SFCS series ATM switches. Based upon international standards developed by the CCITT, ATM allows for fast packet switching of cells, 53 bytes in length. By using small cells
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Introduction Figure 1. 1 - 9A000 Switch Configuration 1-3
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Introduction SecureFast Cell Switch-200BX 5 VOLT 5 VOLT RX1 RX2 RX3 RX4 RX1 RX2 RX3 RX4 TX1 TX2 TX3 TX4 TX1 TX2 TX3 TX4 RX1 RX2 RX3 RX4 RX1 RX2 RX3 RX4 TX1 TX2 TX3 TX4 TX1 TX2 TX3 TX4 Tx Rx Tx Rx PWR PWR C L RESET C L RESET SFCS FORE - FORE ETH NEXT SELECT SER SELECT SER ETH NEXT Figure 1. 2 - SFCS-200BX Switch Configuration 1. 1 Front Panel Description The front panel of the 9A000 and SFCS series includes the following features: a power switch, two power supply LEDs, a RESET button, a
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Introduction 1. 4 Switch Control Processor The i960 switch control processor provides the distributed connection set-up for a network of ATM switches. The switch control processor primarily pro- vides management access through SNMP and is responsible for storing and updating all SNMP management information. Additionally, the switch con- trol processor can access the ATM switch in-band in very much the same manner as an ATM adapter in a workstation (such as the Fore SBA-200 SBus Ada
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Introduction Table 1. 1 - System Hardware and Environmental Specifications Features SFCS Series/9A000 Switching Fabric 2. 5 Gbps non-blocked Traffic Policing UNI 3. 1 dual leaky bucket support Number of Ports up to 24 ports Switch Transit Delay < 10 microseconds Connection Setup Time < 10 milliseconds Maximum Port Speed 622 Mbps (OC-12/STM-4) Power (nominal) 90 - 270 VAC @ 47 - 63 Hz 2. 2 amps maximum Dimensions H: 4. 75” (12. 1 cm) W: 17. 5” (44. 5 cm) D: 18” (45. 7 cm) Weight 43 lbs (19
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MMAC-Plus 9T122-24
Three Port Token Ring

MicroLAN Switch Module
User’s Guide

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Notice Notice Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice. IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVE
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Notice FCC Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable pr
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Notice DOC Notice This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada. iii
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Contents Chapter 1 Introduction Features........................................................................................................................... 1-1 Related Manuals............................................................................................................ 1-4 Getting Help.................................................................................................................. 1-4 Chapter 2 Installation Installing the MicroLAN Module.......
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Chapter 1 Introduction The 9T122-24 MicroLAN™ Switch Module, shown in Figure 1-1, is a three port Token Ring bridge and router module. This module supports either one token ring with twenty four HUB connections, or two separate Token Rings with twelve HUB connections, and an interface to the FNB backplane. Features Processor The 9T122-24 is equipped with an advanced Intel i960 microprocessor. This microprocessor provides a platform for all management functions within a scalabl
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Introduction Management Information Base (MIB) Support The 9T122-24 module provides MIB support including: • IETF MIB II (RFC 1213) • IETF RMON MIB (RFC 1271 and 1513) • IETF Bridge MIBs (RFC 1493 and 1525) • IEEE 802. 5 Token Ring MIB (RFC 1231) • Cabletron Enterprise MIBs For a complete list of supported MIBs, refer to the release notes provided in NOTE the module package. Ring Security This feature prevents unauthorized stations from attaching to the ring. Using Local or Remot
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Features TOKEN RING 9T122-24 SMB CPU FNB 1 2 16 Mb 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MMAC PLUS Figure 1-1. The 9T122-24 MicroLAN Module 1-3
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Introduction Related Manuals The manuals listed below should be used to supplement the procedures and technical data contained in this manual. MMAC-Plus Installation Guide MMAC-Plus Operations Guide MMAC-Plus 9C300-1 Environmental Module User’s Guide MMAC-Plus 9C214-1 AC Power Supply User’s Guide MMAC-Plus Local Management User’s Guide Getting Help If you need additional support with the MMAC-Plus, or if you have any questions, comments or suggestions concerning this manual, feel free t
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Chapter 2 Installation Installing the MicroLAN Module The MMAC-Plus MicroLAN Module may be installed into any of the 14 slots that are available. To install, follow the steps below: 1. Switch off the power supplies and remove all power from the MMAC-Plus chassis. 2. Remove the blank panels, covering the slots that the module is being mounted in. All other slots must be covered, if modules are not being installed, to ensure proper airflow and cooling. 3. Carefully remove the module from
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Installation 7 FLNK 8 FLNK FLNK 10 RX FLNK INS TX 11 RX FLNK INS TX 12 RX Jack for ESD wrist strap Metal Back-Panel Circuit Card Card Guides Warning: Ensure that the circuit card is between the card guides. Lock down the top and bottom plastic tabs at the same time, applying even pressure. Figure 2-1. Installing the MicroLAN Module 2-2
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The Reset Switch The Reset Switch The Reset switch is located on the front panel, under the top plastic tab as shown in Figure 2-2. It serves two functions: • Pressing the reset switch twice within three seconds causes the processor (i960) to reset. • Pressing and holding the switch on for three or more seconds causes the module to shutdown. Pressing and holding again for three seconds restarts the module. SNMP management may be used to disable this switch to enhance module security.
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Installation User Accessible Components Figure 2-3 shows the various components that are accessible to the user. These consist of an eight position dip switch (explained in the next section), replaceable PROMs and sockets for RAM. These will be used for future upgrades. SMB-1 PROM i960 Processor Flash SIMM Socket DIP Switch Boot PROM Shared Packet Memory SIMM Local Program Memory SIMM Socket Figure 2-3. User Accessible Components 2-4
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Setting the Module Card DIP Switch Setting the Module Card DIP Switch An eight switch DIP switch is located on the module card as shown in position 8 in Figure 2-3 and in Figure 2-4. The function of the switches are listed in Table 2-1. 1 2 3 4 5 6 7 8 Figure 2-4. Location of Module DIP Switch 2-5
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Installation See the Cautions at the end of this table. Table 2-1. Function of DIP Switch Switch Function Description When toggled, this switch clears user-entered Clear passwords stored in NVRAM, and restores the 8 1 Password default passwords. Once reset you can use the defaults or enter new passwords. The module uses NVRAM to store user entered parameters such as IP addresses, device name, etc. To reset these parameters to Clear the factory defaults, toggle this switch. Onc
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Ring Speed Ring Speed The module defaults to a 16Mbps ring speed on all rings. This may be changed though local management. Multi-Ring Out Capability Any port of the module may be configured as a ring-out port through management software. In this configuration a stand-alone passive concentrator (such as an IBM 8228) may be added to the ring as shown in Figure 2-5. This allows for a star-wired network with the MMAC-Plus at the center. Consult the MMAC-Plus Local Management Guide for
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Chapter 3 Operation The 9T122-24 MicroLAN Module provides connectivity between the front panel Token Ring(s) and the FDDI rings on the backplane (FNB-1 or FNB-2). MMAC-Plus modules connect to either the Internal Network Bus (INB) or the Flexible Network Bus (FNB) bus. The 9T122-24 module connects to the FNB bus. Shown in Figure 3-1 is a block diagram of the module. The front panel may be configured as one Token Ring (factory default) or as two rings. In the two ring configuration, the
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Operation Transparent Bridging Transparent Bridging is accomplished by building a Source Address Table (SAT) from source MAC/physical addresses and using the SAT to make forwarding decisions. The 9T122-24 prevents unnecessary network traffic from passing through the module by implementing two separate filtering processes — IEEE 802. 1d or Cabletron’s Special Filtering Database. These processes may be used individually or in tandem. The first process, the IEEE 802. 1D filtering process, begi
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Bridging 2. The receiving bridges append their own route information to the Route Information Field (RIF) in the MAC frame header and transmit the frame again. Eventually, the original source device receives all of the ARE replies from the other end stations on the network. 4. From this information, the source device can determine a desired route for each frame it transmits. Spanning Tree Algorithm The 9T122-24 promotes maximum network use in multiple bridge environments. A bridge l
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Operation Flexible Network Bus (FNB) The FNB consists of two dual FDDI networks, the FNB-1 and FNB-2, providing up to 400 Mbps of data bandwidth. These FDDI networks are 100% ANSI FDDI-compliant supporting SMT (version 7. 3), MAC, PHY, and PMD standards. This allows the FNB to traverse multiple MMAC-Plus hubs, or connect to any ANSI FDDI-compliant device, through standard A/B port connections, using the FDDI repeater module. System Management Buses There are two management channel

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