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Bay Networks 8000 RAC Installing Manual

Remote access concentrator
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The Model 8000 Remote
Installing
Access Concentrator
Marketing Release 5.1
Part No. 118353-A Rev. A
September 1997

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Summary of Contents for Bay Networks 8000 RAC

  • Page 1 The Model 8000 Remote Installing Access Concentrator Marketing Release 5.1 Part No. 118353-A Rev. A September 1997...
  • Page 2 Bay Networks, Inc. reserves the right to make changes to the products described in this document without notice. Bay Networks, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.
  • Page 3 USA Requirements Only Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice 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 protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 4 European Requirements Only EN 55 022 Statement This is to certify that the Bay Networks Model 8000 Remote Access Concentrator is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022 Class A (CISPR 22).
  • Page 5 Japan/Nippon Requirements Only Voluntary Control Council for Interference (VCCI) Statement Voluntary Control Council for Interference (VCCI) Statement This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise.
  • Page 6 Australian Requirements Only WARNING This customer equipment is to be installed and maintained by service personnel as defined by AS/NZS 3260 Clause 1.2.14.3. Service Personnel. Incorrect connection of connected equipment to the General Purpose Outlet could result in a hazardous situation.
  • Page 7 Canada Requirements Only Canadian Department of Communications Radio Interference Regula- tions This digital apparatus (Model 8000 Remote Access Concentrator) does not exceed the Class A limits for radio-noise emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications. Règlement sur le brouillage radioélectrique du ministère des Communi- cations Cet appareil numérique (Model 8000 Remote Access Concentrator) respecte les...
  • Page 8 Avant d’installer l’appareillage, s’assurer qu’il peut être branché aux installations du service de télécommunications local. L’appareillage doit aussi être raccordé selon des méthodes acceptées. Dans certains cas, le câblage interne du service de télécommunications utilisé pour une ligne individuelle peut être allongé au moyen d’un connecteur certifié...
  • Page 9 FCC Part 68 Compliance Statement This equipment complies with Part 68 of FCC Rules. All direct connections to telephone network lines must be made using standard plugs and jacks compliant with FCC Part 68. Please note the following: You are required to request service from the telephone company before you connect the unit to a network.
  • Page 10 file a complaint with the FCC. If you experience trouble with the unit, please contact the Bay Networks Technical Solutions Center in your area for service or repairs. Repairs should be performed only by service personnel authorized by Bay Networks, Inc.
  • Page 11 file a complaint with the FCC. If you experience trouble with the unit, please contact the Bay Networks Technical Solutions Center in your area for service or repairs. Repairs should be performed only by service personnel authorized by Bay Networks, Inc.
  • Page 12 90 days from the date Software is first shipped to Licensee. Bay Networks will replace defective media at no charge if it is returned to Bay Networks during the warranty Installing the Model 8000 Remote Access Concentrator...
  • Page 13 Software will be uninterrupted or error free, or d) that all defects in the operation of the Software will be corrected. Bay Networks is not obligated to remedy any Software defect that cannot be reproduced with the latest Software release.
  • Page 14 Licensee will immediately destroy or return to Bay Networks the Software, user manuals, and all copies. Bay Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license.
  • Page 15 Revision Level History Revision Description Initial release. Installing the Model 8000 Remote Access Concentrator xiii...

  • Page 17: Table Of Contents

    Ordering Bay Networks Publications ........
  • Page 18 Contents Chapter 3 ROM Monitor Commands Command Descriptions ..............3-2 addr.
  • Page 19 Contents Appendix C Data Compression Upgrade Instructions Contents of the Kit ............... . C-1 Required Tools .
  • Page 21 Figure B-1. Removing the Screws from the Model 8000 RAC Cover ......
  • Page 23 Table 4-1. Model 8000 RAC Front-Panel LEDs ........

  • Page 25: About This Guide

    About This Guide his manual describes how to install a Model 8000 Remote Access Concentrator. For brevity, this manual often uses the acronym RAC to refer to the Remote Access Concentrator. Refer to Installing Remote Access Concentrator Software for UNIX or Installing Remote Access Concentrator Software for Windows and Windows NT for a description of the software installation.

  • Page 26: Conventions

    About This Guide Conventions This manual uses the following printing conventions: Convention: Represents: In examples, indicates system output. special type special type Bold indicates user input. special type special type In command examples, this notation indicates that Return pressing enters the default value. Return bold Bold indicates commands, pathnames, or filenames that...

  • Page 27: Acronyms

    About This Guide Acronyms Automatic Firmware Download Address Resolution Protocol Attachment Unit Interface Boot File System BootP Bootstrap Protocol Basic Rate Interface Command Line Interface Channel Service Unit Erpcd Expedited remote procedure call daemon Internet Protocol ISDN Integrated Services Digital Network International Organization for Standardization Local Area Network Local Area Transport...

  • Page 28: Ordering Bay Networks Publications

    Phone--International: 510-490-4752 • FAX--U.S./Canada and International: 510-498-2609 The Bay Networks Press catalog is available on the World Wide Web at support.baynetworks.com/Library/GenMisc. Bay Networks publications are available on the World Wide Web at support.baynetworks.com/Library/tpubs. Bay Networks Customer Service You can purchase a support contract from your Bay Networks distributor or authorized reseller, or directly from Bay Networks Services.

  • Page 29: How To Get Help

    About This Guide How to Get Help If you purchased a service contract for your Bay Networks product from a distributor or authorized reseller, contact the technical support staff for that distributor or reseller for assistance. If you purchased a Bay Networks service program, call one of the...

  • Page 31: Introduction

    Chapter 1 Introduction he Model 8000 Remote Access Concentrator (RAC) is a dial-in remote access server that supports mixed traffic, such as analog modems, V.120 ISDN terminal adapters, and devices supporting synchronous PPP. Figure 1-1 illustrates a Model 8000 Remote Access Concentrator. 8000 Remote Access Concentrator WAN 1 WAN 2...

  • Page 32: Figure 1-2. Model 8000 Rac As A Remote Access Server

    Apple Server Macintosh Channelized T1, Channelized E1 or PRI ISDN Lines Central Office Up to 60 Analog, V.120, or Synchronous PPP Lines RA0018A Figure 1-2. Model 8000 RAC as a Remote Access Server Installing the Model 8000 Remote Access Concentrator...

  • Page 33: Model 8000 Remote Access Concentrator Description

    Remote Access Concentrator Server Tools for Windows NT Model 8000 Remote Access Concentrator Description The Model 8000 RAC is a wide area network server capable of supporting domestic ISDN, European ISDN, channelized T1, and channelized E1. The Model 8000 RAC can house up to 62 modems to provide the flexibility of terminating calls originated by analog modems, terminal...

  • Page 34: Main Logic Board

    Chapter 1 Introduction Main Logic Board Processors The Model 8000 RAC uses three 80486 DX2 clock-doubled processors, operating at 64 MHz. WAN Interfaces Two WAN interfaces reside on the MLB and are accessible via RJ-48C connectors on the rear panel. Each WAN interface is controlled by one of the 80486 DX2 processors, which also controls the internal modems.

  • Page 35: Compression Controller

    The ROM monitor is an interactive command interpreter that is used to define basic configuration parameter values. You define the information that the Model 8000 RAC needs to boot an operational image using the ROM monitor and its command set. ROM monitor commands are issued from a terminal connected to the console port on the rear panel.
  • Page 36 NT host Watchdog Timer The Model 8000 RAC uses a watchdog timer that is reset by the software at regular intervals. The watchdog timer reboots the RAC in the unlikely event of an internal software error. This feature enables the RAC to run for long periods of time without intervention.

  • Page 37: Front Panel

    • WAN 2 Status and Alarm LEDs • WAN 2 Channel Activity LEDs Figure 1-3 illustrates the Model 8000 RAC front panel. The front panel components are described in the following paragraphs. 8000 Remote Access Concentrator WAN 1 WAN 2...

  • Page 38: Front Panel Components

    Chapter 1 Introduction Front Panel Components LAN/Unit Status The LAN/Unit Status LEDs display the status of the activity of the Model LEDs 8000 RAC (Table 1-1). Table 1-1. LAN Status LEDs Description Attn Turns amber when the RAC requires operator attention, for example, in Monitor mode.
  • Page 39 Chapter 1 Introduction Reset Button You use the Reset button to: • Enter Setup mode When you press the Reset button, the RAC enters Setup mode and lights the amber Setup LED. In this mode, you can enter configuration data at the monitor:: prompt using the Console terminal, before booting the operational software.

  • Page 40: Table 1-2. Status And Alarm Leds

    Chapter 1 Introduction Table 1-2. Status and Alarm LEDs Alarm Description TEST The network TEST indicator is on when the WAN Interface is looped back. Loopback tests are activated either locally by the user during diagnostics or by the telephone company. SYNC The SYNC indicator is on when the WAN interface is properly synchronized with the received network signal and is receiving...

  • Page 41: Rear Panel

    Chapter 1 Introduction Rear Panel Figure 1-4 shows the Model 8000 RAC rear panel, which consists of: • WAN 1 and WAN 2 interface ports • AUI Ethernet interface port • 10BASE-T Ethernet interface port • Link LED • Sync Port •...
  • Page 42 X.21, V.35, RS-422, and synchronous RS-232. Console Port The Model 8000 RAC has a 9600-baud console port with an 8-pin, modular jack for attaching the console. The console port provides access to the ROM monitor commands when the Model 8000 is in Setup mode and provides access to the console commands when the unit is running.

  • Page 43: Physical Characteristics

    Chapter 1 Introduction Physical Characteristics The Model 8000 RAC has the following characteristics: • Dimensions: Height: 2.6 in. (6.5 cm) Width: 19 in. (47.5 cm) Depth: 16.75 in. (41.9 cm) • Weight: 20 lbs (9 kg) • Electrical Specifications: •...
  • Page 44 Chapter 1 Introduction • Transportation vibration and shock: NSTA project 1A standard in shipping container • Approvals: • Meets safety requirements of Underwriters Laboratories for UL 1950 and CSA C22.2 No. 950 • Meets EMI requirements of FCC Class A and EN 55 022 Class A with shielded and unshielded cables •...

  • Page 45: Installing The Model 8000 Remote Access Concentrator

    Chapter 2 Installing the Model 8000 Remote Access Concentrator his chapter describes how to install your Model 8000 Remote Access Concentrator hardware and software. It provides the following information: • Before you begin • Installing the Remote Access Concentrator in a rack (optional) •...

  • Page 46: Verifying Shipment Contents

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Verifying Shipment Contents The standard contents of every Model 8000 RAC shipment include: • A power cable • An RJ-45 cable with DTE adapter • Two rackmount brackets • Twelve #6 flathead screws •...

  • Page 47: Preparing For Installation

    A valid IP address • An appropriate subnet mask • A host with Model 8000 RAC software installed (if not booting from flash memory) The RAC can obtain its operational image from any one of these sources: • A UNIX host running erpcd •...
  • Page 48 Chapter 2 Installing the Model 8000 Remote Access Concentrator Booting from a Windows NT Host If you plan to download the image from a Windows NT host to the RAC, you must first install the RAC operational software and image on the Windows NT host.

  • Page 49: Installing The Remote Access Concentrator In A Rack

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Installing the Remote Access Concentrator in a Rack If you wish, you can install the RAC in an equipment rack. To do this, you need the following equipment: • Two mounting brackets shipped with the RAC •...

  • Page 50: Figure 2-2. Attaching The Mounting Brackets To The Rac

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Attach the other mounting bracket in the same manner. Screws (6 places each side) RA0004A Figure 2-2. Attaching the Mounting Brackets to the RAC Installing the Model 8000 Remote Access Concentrator...

  • Page 51: Attaching The Device To The Rack

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Attaching the Device to the Rack To attach the device to the rack: Position the unit horizontally, facing forward in the rack. Align the holes in the mounting brackets with the holes in the rack.

  • Page 52: Connecting A Lan Using Ethernet

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Connecting a LAN Using Ethernet The RAC supplies AUI and 10BASE-T Ethernet ports on the rear panel for connecting a LAN (Figure 2-4). Appendix A describes the signal/pin allocations for the AUI and 10BASE-T Ethernet ports. The 10BASE-T port is for connecting twisted pair cabling.

  • Page 53: Connecting Aui Cable

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Connecting AUI Cable To connect an AUI cable to the RAC (Figure 2-5): Make sure the transceiver cable is plugged into the Ethernet network. Push the slide mechanism on the RAC’s Ethernet connector to the right and plug in the transceiver cable.

  • Page 54: Connecting Twisted Pair Ethernet (10Base-T) Cable

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Connecting Twisted Pair Ethernet (10BASE-T) Cable To connect twisted pair (10BASE-T) Ethernet cable to the RAC 2-6): (Figure Insert the connector located on the twisted pair Ethernet cable into the 10BASE-T connector on the rear panel of the RAC.

  • Page 55: Connecting A Console Terminal

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Connecting a Console Terminal You use a console terminal to access the ROM monitor and boot the RAC for the first time. To connect a console terminal to the console port located on the rear panel of the RAC: Connect one end of the cable (provided in the accessory kit) to the console terminal’s I/O connector, using a DB-25 DTE...

  • Page 56: Figure 2-8. Connecting A Console Terminal

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Plug the 8-pin connector into the console port located on the back panel of the RAC (Figure 2-8). When the connector clicks into place, the connection is secure. Appendix A describes the console port’s signal/pin allocation. RA0011A Figure 2-8.

  • Page 57: Connecting Wan Interfaces

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Connecting WAN Interfaces The WAN Interfaces connect the RAC to channelized T1, channelized E1, and ISDN PRI lines. To connect the lines to the WAN Interface ports: Configure the WAN interface using any of these tools: •...

  • Page 58: Figure 2-9. Connecting The Wan Interfaces

    Chapter 2 Installing the Model 8000 Remote Access Concentrator RA0010A Figure 2-9. Connecting the WAN Interfaces The RAC uses an internal Channel Service Unit (CSU) for T1 applications. An internal CSU is not used in E1 applications. Installing the Model 8000 Remote Access Concentrator 2-14...

  • Page 59: Initial Setup Using The Rom Monitor

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Initial Setup Using the ROM Monitor After installing the RAC software on the file server host, collect the following information, which is required to determine the RAC’s boot parameters: • The location (directory path) of the download files on the host (tftp only) •...

  • Page 60: Remote Access Concentrator Parameters

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Remote Access Concentrator Parameters You must set certain parameters from the ROM monitor before booting the RAC from a host (Table 2-1). After the RAC boots, you can change these parameters using the na utility. If you make any changes to these parameters, you must reboot the RAC for the changes to take effect.

  • Page 61: Powering Up And Testing The Remote Access Concentrator

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Powering Up and Testing the Remote Access Concentrator This section describes how to power up and test the RAC, and enter monitor mode to configure the unit. To power up and test the RAC: If you have not already done so, connect a terminal to the console port as described on page...
  • Page 62 Chapter 2 Installing the Model 8000 Remote Access Concentrator Verify the RAC hardware configuration. At the monitor:: prompt, type config and press Return . The screen displays information similar to this: REVISION/CONFIGURATION INFORMATION ROM Software Rev: 1122 Board ID: 64 Board Type: 8000 CPU Type: 486DX2 Ethernet Address: 00-80-2d-xx-xx-xx...

  • Page 63: Booting The Remote Access Concentrator

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Booting the Remote Access Concentrator You can boot the RAC by downloading the image from a host system or another Model 8000 Remote Access Concentrator, or by using the image contained in flash memory (self-boot). However, before you actually boot the RAC, you must first initialize the IP address parameters manually or by using the autoinitialize feature.
  • Page 64 Chapter 2 Installing the Model 8000 Remote Access Concentrator If all requests fail, the RAC returns to the ROM monitor (if in Setup mode) or continues the autoinitializing procedure indefinitely (if in normal mode). BootP For a successful BootP retrieval, you must be running a bootpd daemon on a host on the same subnet as the RAC (or have a router on the same subnet that supports BootP forwarding) and must have the appropriate information in the bootptab file.
  • Page 65 Chapter 2 Installing the Model 8000 Remote Access Concentrator When the RAC receives a BootP response with the sm, gw, and ip set, it sets the respective parameters: subnet_mask, load_dump_gateway, and inet_addr. The Vendor Magic Cookie must be set to auto. This indicates that bootpd should respond to the client (Model 8000 Remote Access Concentrator, in this case) with whatever format the client requests.

  • Page 66: Manually Initializing The Ip Address Parameters

    Chapter 2 Installing the Model 8000 Remote Access Concentrator The host providing the RAC with boot information must be running on the same subnet as the RAC because the RAC broadcasts BootP and RARP queries using the “this network” IP address, 255.255.255.255. If BootP and RARP fail, the RAC transmits an IPX Advertisement Request for Service.

  • Page 67: Booting Using Bfs

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Booting Using BFS To boot the RAC using the block file server (BFS): Initialize the IP address parameters using either the autoinitialize or manual initialize method. The autoinitialization method is described in Autoinitializing the IP Address Parameters on page 2-19.

  • Page 68: Console Monitor Ready; Press Cr To Start

    Chapter 2 Installing the Model 8000 Remote Access Concentrator The download takes from 30 to 60 seconds for a Model 8000 Remote Access Concentrator booting over the local network. After the download is complete, the Power, Unit, and Net LEDs remain on. If these LEDs do not remain on (indicating a problem), see Chapter Once the RAC is booted, Monitor mode is no longer operational.
  • Page 69 Chapter 2 Installing the Model 8000 Remote Access Concentrator Enter the image command at the monitor prompt. When prompted, enter the following information: • Boot image name • Boot directory • Dump file name The default image file name is: oper.64.enet The following example shows how the image command is used to set up a RAC boot from the /tftpboot/annex/ directory.
  • Page 70 Chapter 2 Installing the Model 8000 Remote Access Concentrator Enter the boot command. The boot command displays information similar to this: Enter boot file name[oper.64.enet]:: Requesting boot file ”oper.64.enet”. Unanswered requests shown as ’?’,transmission errors as ’*’. Requesting boot from 192.9.200.88 via Ethernet... Booting BFS file using open delay of 8? Booting TFTP file using open delay of 8 Booting TFTP file from 192.9.200.88...

  • Page 71: Self-Booting The Remote Access Concentrator

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Self-Booting the Remote Access Concentrator The RAC comes equipped with Flash memory that contains an operational image you can use to self-boot the unit. To self-boot your RAC: Initialize the IP address parameters using the manual initialize method.

  • Page 72: Invoking The Console Monitor

    Chapter 2 Installing the Model 8000 Remote Access Concentrator Invoking the Console Monitor After the image boots, you can invoke the Console monitor by pressing Return on the console terminal. The following prompt appears: Console monitor: At the Console monitor prompt, entering help or ? displays the available options: •...

  • Page 73: Rom Monitor Commands

    Chapter 3 ROM Monitor Commands his chapter describes the ROM Monitor commands that are available in Monitor mode. Access these commands through a terminal connected to the console port. The ROM Monitor commands allow you to set a subset of the configuration (EEPROM) parameters.

  • Page 74: Command Descriptions

    Chapter 3 ROM Monitor Commands Default or current values for parameters are displayed in brackets. For example: Enter broadcast address [132.245.6.255]: At the prompt, enter a different value, or press Return to leave the displayed value unchanged. You can use unique abbreviations for all ROM Monitor commands except erase.
  • Page 75 Chapter 3 ROM Monitor Commands Table 3-1. ROM Monitor Commands ( continued ) Command Description config Displays the current Identifying your hardware configuration hardware, memory, and revision levels. and ROM versions. erase Erases nonvolatile Clearing out old memory. parameters. help Displays the list of ROM Referencing the Monitor commands.

  • Page 76: Addr

    Chapter 3 ROM Monitor Commands addr The addr command sets and displays several RAC operating parameters (EEPROM values) relevant to IP network addressing: • Internet address • Subnet mask • Broadcast address • Preferred load host address • Preferred dump host address •...
  • Page 77 Chapter 3 ROM Monitor Commands The addr command display looks similar to this: monitor:: addr Enter Internet address [<uninitialized>]:: 192.9.200.214 Internet address: 192.9.200.214 Enter Subnet mask [255.255.255.0]:: Enter Broadcast address [0.0.0.0]:: 192.9.200.0 Broadcast address: 192.9.200.0 Enter Preferred Load Host address [<any host>]:: 192.9.201.88 Preferred Load Host address: 192.9.200.88 Enter Preferred Dump Host address [0.0.0.0]:: 192.9.201.88 Preferred Dump Host address: 192.9.200.88...
  • Page 78 Chapter 3 ROM Monitor Commands The RAC must have an Internet (IP) address in its memory before it can load its operational image across the Ethernet via the IP protocol. Therefore, you must enter the IP address before booting the RAC from a UNIX load host.

  • Page 79: Allow_Snmp_Sets

    Chapter 3 ROM Monitor Commands allow_snmp_sets This command enables or disables the RAC’s ability to accept and process SNMP set commands. The command syntax is: allow_snmp_sets [-d] If you enter the allow_snmp_sets command without the –d argument, you will be prompted to change the current setting of the parameter. The allow_snmp_sets -d command displays the current setting.

  • Page 80: Boot

    Chapter 3 ROM Monitor Commands boot The boot command requests the loading of appropriate Remote Access Concentrator operating software from a host on the network or from flash memory. The command syntax is: boot [–lv | filename] Typing the letter q or -C interrupts the boot.
  • Page 81 Chapter 3 ROM Monitor Commands The RAC boots from the defined preferred load host. If the preferred load host is not defined or does not respond, the RAC optionally broadcasts on the Ethernet and loads from the first host that responds, if the load broadcast flag is set.
  • Page 82 Chapter 3 ROM Monitor Commands The status word “! ~XXXX~”, where XXXX are four hexadecimal digits, decodes as follows: 8000 = Command complete 4000 = Chip is busy 2000 = Command completed without error 1000 = Command aborted 800 = Late collision detected 400 = Carrier lost 200 = CTS lost 100 = DMA underrun...
  • Page 83 Chapter 3 ROM Monitor Commands The next example shows a boot using tftp. The RAC always tries to open a file using bfs first. If unsuccessful, the RAC uses tftp to open the file. monitor:: boot Enter boot file name [(ip) “oper.64.enet”, \ (mop) “OPER_64_ENET.SYS”]:: Requesting default boot file “OPER_64_ENET.SYS”...
  • Page 84 Chapter 3 ROM Monitor Commands The boot –l command downloads and saves the operational image to RAM, erases the existing flash memory, copies the new image from RAM to Flash memory in compressed form, and then executes the image. After you execute a boot –l command, the ls command may not show the newly loaded image.
  • Page 85 Chapter 3 ROM Monitor Commands Use boot –l only when reloading your flash memory. Typically, you reload your flash memory when you are upgrading to a new version of software. The boot –v command displays the boot in verbose mode. The output includes the turnaround time, in milliseconds, for each request.

  • Page 86: Config

    Chapter 3 ROM Monitor Commands config The config command displays the current configuration information and revision levels for the RAC. The config command displays revision information, the amount of memory installed, T1 or E1 configuration information, and a description of the number and type of modems installed.

  • Page 87: Erase

    Chapter 3 ROM Monitor Commands erase The erase command erases the contents of nonvolatile memory (EEPROM memory). Erasing EEPROM restores all parameters to factory default values. The erase command does not erase the Ethernet address. The syntax is: erase The erase command prompts for confirmation before erasing the nonvolatile (EEPROM) memory.

  • Page 88: Help

    Chapter 3 ROM Monitor Commands help Entering help or ? displays brief descriptions of the Remote Access Concentrator ROM Monitor commands. Installing the Model 8000 Remote Access Concentrator 3-16...

  • Page 89: Image

    Chapter 3 ROM Monitor Commands image The image command sets and displays the name of the image file containing the RAC software. The syntax is: image [–d | filename] The filename argument can have up to 100 characters. To return the image name to its default, enter a pair of quotation marks ("").
  • Page 90 Chapter 3 ROM Monitor Commands lat_key The lat_key command allows you to set and display the LAT key from the ROM monitor. The LAT key is optional and may be purchased separately. The command syntax is: lat_key [–d] The lat_key command display looks like this: monitor:: lat_key Enter LAT Key [<uninitialized>]:: The lat_key –d command displays the current LAT key setting:...

  • Page 91: Net

    Chapter 3 ROM Monitor Commands The net command executes an Ethernet transceiver loopback test on the local area network. The command syntax is: When you enter the net command, you are prompted as shown in the following example: monitor:: net Is a loopback plug being used ? (y/n) [n]: n This transceiver loopback test sends out a short test packet from the RAC through the transceiver to test the integrity of the network.

  • Page 92: Ping

    Chapter 3 ROM Monitor Commands ping The ping command sends an Internet Control Message Protocol (ICMP) mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams (pings) have an IP and ICMP header, followed by a structured time value and an arbitrary number of pad bytes that fill out the packet.

  • Page 93: Ports

    Chapter 3 ROM Monitor Commands ports The ports command tests the WAN interface port. The syntax is: ports To test the WAN port, the interface must be connected to a loopback plug. No external clocking is required. When invoked, the command displays a menu of options. The following is a sample screen display for a T1 (24 modems) or E1 (32 modems) version of the RAC.

  • Page 94: Sequence

    Chapter 3 ROM Monitor Commands sequence The sequence command edits the load/dump interface list. This list determines the order of the network interfaces the RAC uses for loading and dumping. The default, net, uses the LAN interface. If the RAC fails to boot using the first interface, it will try the next interface.
  • Page 95 Chapter 3 ROM Monitor Commands The sequence –d command displays the current load/dump interface list. You cannot specify both the –d argument and an interface list at the same time. The command display looks like this: monitor:: sequence –d Interface sequence: self,net Installing the Model 8000 Remote Access Concentrator 3-23...

  • Page 96: Stats

    Chapter 3 ROM Monitor Commands stats The stats command displays current network statistics gathered by the ROM. Use stats along with the boot command to help isolate problems. Table 3-2 describes the network statistics displayed by the stats command. The syntax is: stats The stats command display looks like this: monitor:: stats...
  • Page 97 Chapter 3 ROM Monitor Commands Table 3-0. Network Statistics (continued) Statistic Description Bus Wait Drops The number of packets dropped due to waiting too long for a bus to become available. Bad Types/Lengths The number of unknown packet types if Ethernet DIX encapsulation is being used.
  • Page 98 Chapter 3 ROM Monitor Commands Installing the Model 8000 Remote Access Concentrator 3-26...

  • Page 99: Troubleshooting Procedures

    Remote Access Concentrator dump. Front-Panel Alarms and LED Indicators The Model 8000 RAC front panel contains a number of LEDs that provide information about normal operations and about problems that occur. Use these LEDs and the ROM Monitor commands to diagnose problems.

  • Page 100: Table 4-1. Model 8000 Rac Front-Panel Leds

    Chapter 4 Troubleshooting Procedures Figure 4-1 describes the LEDs located on the front panel of the Model 8000 RAC. Table 4-1. Model 8000 RAC Front-Panel LEDs Description LAN/Unit Attn - Turns on when the RAC requires operator attention, Status LEDs that is, in Monitor mode or when the diagnostic tests fail.
  • Page 101 Chapter 4 Troubleshooting Procedures Table 4-1. Model 8000 RAC Front-Panel LEDs (continued) Description Status and Alarm TEST- The network Test indicator is on when the WAN LEDs Interface is looped back. Loopback tests are activated either locally by the user or by the telephone company.

  • Page 102: Power-Up And Boot Procedures

    Chapter 4 Troubleshooting Procedures During power-up and booting, it is more difficult to diagnose problems because they can originate in the RAC, the Ethernet, or the load server host. However, the LEDs provide both a progress report and an error display to assist you in troubleshooting.

  • Page 103: Table 4-2. Normal Mode Error-Free Led States

    Chapter 4 Troubleshooting Procedures Table 4-2. Normal Mode Error-free LED States STAT ATTN TRAF Activity Green Amber Green N1: LEDs OK N2: Hardware OK Key: On continuously Activity N1: Testing All front-panel LEDs (and the Link LED on the rear panel) light for a LEDs few seconds, then all turn off, confirming that all LEDs are operational.

  • Page 104: Table 4-3. Normal Mode Error Led States

    Chapter 4 Troubleshooting Procedures Table 4-3. Normal Mode Error LED States STAT ATTN TRAF Activity Green Amber Green NE2: Hardware Failure NE5: Booted wrong image Key: On continuously Flashing regularly (about 1Hz) Activity NE2: The ROM diagnostics detected a hardware problem requiring service; Hardware Failure call the Technical Solutions Center.

  • Page 105: Setup Mode

    Chapter 4 Troubleshooting Procedures Setup Mode Enter Setup mode by pressing the Reset button located on the front panel. Press this button within 30 seconds of resetting or turning on the device. Setup Mode Error-Free Sequence Table 4-4 summarizes the LED sequences that display in Setup mode during an error-free startup.

  • Page 106: Table 4-5. Setup Mode Error Led States

    Chapter 4 Troubleshooting Procedures Activity T3: At the When the STAT and ATTN LEDs are on, the ROM monitor prompt is Monitor Prompt displayed on the console terminal. Enter the boot command at the prompt. If you do not enter a file name with the command, you are prompted to do so.
  • Page 107 Chapter 4 Troubleshooting Procedures Activity TE7: Booted The RAC loaded an inappropriate image. Press the Reset button for 3 Wrong Image seconds to reset the device. To prevent this problem in the future: • Make sure that you configure the RAC with the appropriate information about the location of the image.

  • Page 108: Boot Failures

    Chapter 4 Troubleshooting Procedures Boot Failures The procedures for troubleshooting a power-up failure established that: • The hardware is functional. • The Ethernet interface is functional. • The RAC can communicate with the Ethernet. If the RAC still does not boot, you must locate the problem. The boot error report can help in this process.

  • Page 109: Boot Error Report

    Chapter 4 Troubleshooting Procedures Boot Error Report If a boot error occurs, a RAC boot error report is generated only if the RAC opened the boot file. The report looks similar to this: BOOT ERROR REPORT (for BFS files only) Boot attempt from host nn.nn.nn.nn: Errors from Last Open Request: 0 ARP errors 0 ERPC layer errors 0 Aborts rx’d...

  • Page 110: Table 4-6. Errors From Last Erpc Layer Invocation

    Chapter 4 Troubleshooting Procedures Table 4-6. Errors from Last ERPC Layer Invocation Error Description H/W errors The RAC sensed a hardware error during message transmission or reception. This error indicates a fault with the RAC LAN interface. Use the net command to isolate the problem (see on page 3-19).

  • Page 111: Correcting Remote Access Concentrator Parameters

    Chapter 4 Troubleshooting Procedures Table 4-8. Errors from Last Open Request Error Description ARP errors Address Resolution Protocol (ARP) errors indicate that the RAC is configured to boot from a specified host, but the host would not transmit its Ethernet address to the RAC.

  • Page 112: Load Server Host Not Responding

    Chapter 4 Troubleshooting Procedures • IP encapsulation type. All systems that have Ethernet interfaces are IEEE 802.3 compliant, but very few actually use 802.3 (LLC/SNAP) packet encapsulation. Use the default, Ethernet, unless you know for certain that your LAN uses IEEE 802.2/802.3 (LLC/SNAP) packet encapsulation. You can use the defaults for the name of the image file containing the RAC’s software and the address of the preferred load server host.
  • Page 113 Chapter 4 Troubleshooting Procedures UNIX Host on the LAN When troubleshooting a UNIX host on the LAN, make sure that: • The host is booted and functioning properly. • The host can communicate with other network nodes using standard UNIX networking features and utilities. •...
  • Page 114 Chapter 4 Troubleshooting Procedures When the RAC boots in Monitor mode, the console terminal displays the load server host’s IP address, and indicates whether it receives a response to its open file request and to any of its read file requests. The host’s progress report indicates receipt of any file server requests and its responses to such requests.
  • Page 115 Chapter 4 Troubleshooting Procedures To troubleshoot a Windows NT host on the LAN: Stop the erpcd service from the Control Panel. Then open a DOS command shell and manually start erpcd with the -D5 option. Running erpcd with the -D5 option invokes a very thorough debug mode that can take a considerable amount of time to complete.
  • Page 116 Refer to Managing Remote Access Concentrators Using Command Line Interfaces for more information about these commands. A Model 8000 RAC that has been reconfigured as a load server host, but has not been rebooted, cannot boot another Model 8000 RAC on the network.

  • Page 117: Remote Access Concentrator Dumps

    Chapter 4 Troubleshooting Procedures Remote Access Concentrator Dumps The RAC dumps its memory image to a host running load server software when certain software or hardware events occur. Table 4-9 shows the LED states during a dump. Dump files are generated for use by Technical Solutions Center personnel only.
  • Page 118 Chapter 4 Troubleshooting Procedures The RAC sends a dump file to a preferred dump host. If you do not define this host by specifying an IP address, the RAC broadcasts a request and dumps to the first host that responds. The RAC sends a dump to the /usr/spool/erpcd/bfs directory on the dump host.

  • Page 119: Table 4-10. Remote Access Concentrator Dump File Naming Conventions

    Chapter 4 Troubleshooting Procedures Each dump file contains a complete image of the RAC RAM memory and hardware state. The amount of space required for a dump file varies according to the port configuration. The ROM Monitor config command displays the amount of memory for the RAC. Table 4-10 shows sample dump file names.
  • Page 120 Chapter 4 Troubleshooting Procedures Installing the Model 8000 Remote Access Concentrator 4-22...

  • Page 121: Appendix A Port Pins And Signals

    Appendix A Port Pins and Signals his appendix identifies the signals and the associated pins used by the following Remote Access Concentrator ports: • Console Port • WAN Interface Ports • AUI Ethernet Port • 10BASE-T Ethernet Port • Sync Port Console Port A-1).

  • Page 122: Wan Interface Ports

    Appendix A Port Pins and Signals Table A-1. Console Port Pin/Signal Allocations Pin Number Signal WAN Interface Ports The Model 8000 RAC is equipped with two WAN Interface ports (Figure A-2). Table A-2 lists the port’s pin/signal allocations. RA0014A Figure A-2. WAN Interface Port Connector...

  • Page 123: 10Base-T Ethernet Port

    Appendix A Port Pins and Signals Table A-2. WAN Interface Port/Pin Signal Allocations Pin Number Signal Receive data from network (RECEIVE RING) Receive data from network (RECEIVE TIP) Unused Transmit data to network (TRANSMIT RING) Transmit data to network (TRANSMIT TIP) Unused Unused Unused...

  • Page 124: Aui Ethernet Port

    Appendix A Port Pins and Signals Table A-3. 10BASE-T Ethernet Port Pin/Signal Allocations RJ-45 Pin Signal TXD + TXD – RXD + RXD – AUI Ethernet Port Figure A-4 illustrates an AUI Ethernet port. Table A-4 lists the port’s pin/ signal allocations.

  • Page 125: Table A-4. Aui Ethernet Port Pin/Signal Allocations

    Appendix A Port Pins and Signals Table A-4. AUI Ethernet Port Pin/Signal Allocations Signal Ground (for transceiver power) Collision + Transmit + Ground Receive + Ground (for transceiver power) Unused Ground Collision – Transmit – Ground Receive – + 12 volts (for transceiver power) Ground Unused Installing the Model 8000 Remote Access Concentrator...

  • Page 126: Sync Port

    Appendix A Port Pins and Signals Sync Port The connector used for the sync port is a high-density 44-pin DB-25 connector (Figure A-5). Table A-5 lists the port’s pin/signal allocations. RA0019A Figure A-5. Sync Port Table A-5. Sync Port Pin/Signal Allocations Signal Description FGND...
  • Page 127 Appendix A Port Pins and Signals Table A-5. Sync Port Pin/Signal Allocations (continued) Signal Description DTR+ non-V.35 Data Terminal Ready DTR- DCD+ non-V.35 Data Carrier Detect DCD- non-V.35 Send Timing non-V.35 Receive Timing non-V.35 Terminal Timing RTIN# Buffered Receive Timing from transceiver RTIN#B Receive Timing to SCC Buffered Send Timing from transceiver...
  • Page 128 Appendix A Port Pins and Signals Table A-5. Sync Port Pin/Signal Allocations (continued) Signal Description UNBE Unbalanced Enable - RS-232 only (active high) V35D V.35 interface (active low) Signal Ground SNDC Send Common Installing the Model 8000 Remote Access Concentrator...

  • Page 129: Modem Upgrade Instructions

    Appendix B Modem Upgrade Instructions he Model 8000 RAC supports up to 62 internal digital modems. The modems are located on plug-in cards that reside on the main logic board. This chapter describes how to install digital modem cards to upgrade the number of modems on the RAC.

  • Page 130: Removing The Rac Cover

    Remove the four screws from the back of the unit (Figure B-1). Lift the cover up from the back of the unit and off (Figure B-2). RA0023A Figure B-1. Removing the Screws from the Model 8000 RAC Cover Installing the Model 8000 Remote Access Concentrator...

  • Page 131: Figure B-2. Removing The Model 8000 Rac Cover

    Appendix B Modem Upgrade Instructions RA0022A Figure B-2. Removing the Model 8000 RAC Cover Installing the Model 8000 Remote Access Concentrator...

  • Page 132: Installing Modem Cards

    Appendix B Modem Upgrade Instructions Installing Modem Cards Observe handling precautions for electrostatic-sensitive devices. On the RAC, there are two locations that can accommodate modem cards (up to 62 modems total). To install the modem cards into the RAC (Figure B-3): Find the locations in which you plan to install the modem cards.

  • Page 133: Figure B-3. Adding Modem Cards To The Model 8000 Rac

    Appendix B Modem Upgrade Instructions Modem Card Orientation RA0016A Figure B-3. Adding Modem Cards to the Model 8000 RAC Installing the Model 8000 Remote Access Concentrator...

  • Page 134: Removing Modem Cards

    Appendix B Modem Upgrade Instructions Removing Modem Cards Occasionally you may need to remove modem cards from the RAC (for example, if a modem card fails and needs to be replaced). On the RAC, there are two locations that can accommodate modem cards (up to 62 modems total).

  • Page 135: Figure B-4. Removing Modem Cards From The Model 8000 Rac

    Appendix B Modem Upgrade Instructions Modem Card Removal RA0016B Figure B-4. Removing Modem Cards from the Model 8000 RAC Installing the Model 8000 Remote Access Concentrator...

  • Page 136: Replacing The Rac Cover

    fit inside the corresponding slots in the chassis. Secure the cover by installing the four screws in the back of the cover. Do not overtighten these screws. RA0021A Figure B-5. Replacing the Model 8000 RAC Cover Installing the Model 8000 Remote Access Concentrator...

  • Page 137: Power-Up And Test

    Sync port cable (V.35, X.21, RS-422, or RS-232) • The power cord Turn on the unit’s power. Set the Model 8000 RAC to Setup mode by pressing the Reset button momentarily (Figure B-6). The RAC runs its ROM-resident power-up diagnostics.

  • Page 138: Figure B-6. Setting The Model 8000 Rac To Setup Mode

    Sync Yel Sync Yel 20 40 60 80 100 FULL 20 40 60 80 100 FULL Sync Setup Power Reset button RA0005A Figure B-6. Setting the Model 8000 RAC to Setup Mode Installing the Model 8000 Remote Access Concentrator B-10...

  • Page 139: Data Compression Upgrade Instructions

    Appendix C Data Compression Upgrade Instructions he Model 8000 supports data compression. The compression is performed by a plug-in card that is installed on the main logic board. This chapter describes how to install the data compression card on the main logic board.

  • Page 140: Removing The Rac Cover

    Remove the four screws from the back of the unit (Figure C-1). Lift the cover up from the back of the unit and off (Figure C-2). RA0023A Figure C-1. Removing the Screws from the Model 8000 RAC Cover Installing the Model 8000 Remote Access Concentrator...

  • Page 141: Installing The Compression Card

    Appendix C Data Compression Upgrade Instructions RA0022A Figure C-2. Removing the Model 8000 RAC Cover Installing the Compression Card Observe handling precautions for electrostatic-sensitive devices. To install the compression card on the main logic board (Figure C-3): Find the location in which you plan to install the compression card.

  • Page 142: Replacing The Rac Cover

    Appendix C Data Compression Upgrade Instructions RA0015A Figure C-3. Installing the Compression Card Replacing the RAC Cover To replace the RAC cover (Figure C-4): Lower the cover onto the unit at an angle, and insert the five tabs on the cover into the corresponding slots on the chassis (Figure C-4).

  • Page 143: Figure C-4. Replacing The Model 8000 Rac Cover

    Appendix C Data Compression Upgrade Instructions RA0021A Figure C-4. Replacing the Model 8000 RAC Cover Installing the Model 8000 Remote Access Concentrator...
  • Page 144 Appendix C Data Compression Upgrade Instructions Installing the Model 8000 Remote Access Concentrator...
  • Page 145 4-4 causes for 4-10 dumps booting dump files 4-20 from another Model 8000 RAC 2-4 events that trigger 4-19 from flash memory 2-27 booting the RAC from a UNIX host 2-3 EMI requirements 1-14 from a Windows NT host 2-4...
  • Page 146 Index modem cards description 1-4 hardware configuration installing B-4 displaying 2-18, 3-14 removing B-6 verifying 2-18 module 2-18 help command 3-3, 3-16 MTBF 1-14 image command 3-3, 3-17 net command 3-3, 3-19 image -d 3-17 normal mode image name diagnostics 4-4 default 3-17 error-free LED display states 4-4 initial boot parameters...
  • Page 147 Index EMI requirements 1-14 shipment contents environmental conditions 1-13 verifying 2-2 firmware 1-5 Stac 9711 coprocessor 1-5 flash memory 1-4 stats command 3-24 module processors 1-4 example 3-24 fields 3-24 ROM monitor 1-5 subnet mask safety requirements 1-14 server parameters 2-16 description 2-16 weight 1-13 setting 3-6...
  • Page 148 Index verifying Ethernet address 2-18 RAC server hardware configuration 2-18 WAN interface connecting 2-13 WAN interface ports pin/signal allocations A-2 watchdog timer 1-6 Installing the Model 8000 Remote Access Concentrator Index-4...

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