Installing and Maintaining ASN Routers and BNX Platforms Part No. 109351-F Rev.
4401 Great America Parkway Santa Clara, CA 95054 8 Federal Street Billerica, MA 01821 Copyright © 1988–1997 Bay Networks, Inc. All rights reserved. Printed in the USA. January 1997. The information in this document is subject to change without notice. The statements, configurations, technical data, and recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty.
USA Requirements Only Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice This equipment generates, uses, and can radiate radio-frequency energy. If you do not install and use this equipment according to the instruction manual, this product may interfere with radio communications. This product has been tested and found to comply with the limits for a Class A computing device, pursuant to Subpart J of Part 15 of FCC Rules.
Japan/Nippon Requirements Only Voluntary Control Council for Interference (VCCI) Statement Voluntary Control Council for Interference (VCCI) Statement This equipment is in the 1st category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines that are aimed at preventing radio interference in commercial and/or industrial areas.
Canada Requirements Only Canada CS-03 Rules and Regulations Note: The Canadian Department of Communications label identifies certified equipment. The certification means that the equipment meets certain telecommunications network protective operations and safety requirements. The Department does not guarantee the equipment will operate to the user's satisfaction.
Canada Requirements Only (continued) D. O. C. Explanatory Notes: Equipment Attachment Limitations The Canadian Department of Communications label identifies certified equipment. This certification meets certain telecommunication network protective, operational and safety requirements. The department does not guarantee the equipment will operate to the users satisfaction.
Canada Requirements Only (continued) Canadian Department of Communications Radio Interference Regulations This digital apparatus (Access Feeder Node, Access Link Node, Access Node, Access Stack Node, Backbone Concentrator Node, Backbone Concentrator Node Switch, Backbone Link Node, Backbone Link Node Switch, Concentrator Node, Feeder Node, Link Node) 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
T1 Service Compliance Statements T1 Service NOTE: This T1 Service notice applies to you only if you have received a single or dual port Multi-Channel T1 (MCT1) Link Module (which provides an internal CSU). This equipment complies with Part 68 of FCC Rules. Please note the following: 1. You are required to request T1 service from the telephone company before you connect the CSU to a T1 network.
Bay Networks Software License Note: This is Bay Networks basic license document. In the absence of a software license agreement specifying varying terms, this license -- or the license included with the particular product -- shall govern licensee’s use of Bay Networks software. This Software License shall govern the licensing of all software provided to licensee by Bay Networks (“Software”).
Bay Networks Software License (continued) 9. Licensee shall not reverse assemble, reverse compile, or in any way reverse engineer the Software. [Note: For licensees in the European Community, the Software Directive dated 14 May 1991 (as may be amended from time to time) shall apply for interoperability purposes. Licensee must notify Bay Networks in writing of any such intended examination of the Software and Bay Networks may provide review and assistance.] 10.
Contents About This Guide Conventions ..................................................................................................................... xx Acronyms .........................................................................................................................xxi Ordering Bay Networks Publications ..............................................................................xxii Technical Support and Online Services Bay Networks Customer Service ................................
Chapter 2 Starting the ASN Understanding the ASN Boot Options ............................................................................2-1 Starting the ASN for the First Time .................................................................................2-2 Using EZ-Install ..............................................................................................................2-3 Using Netboot ........................................................................................................
Installing the Fast Packet Cache SIMM ........................................................................5-12 Chapter 6 Replacing the System Board Removing the System Board ..........................................................................................6-1 Installing the System Board ............................................................................................6-6 Appendix A Solving Problems Identifying Problems ...................................................................
Appendix D Technical Specifications Physical Specifications .................................................................................................. D-1 Electrical Specifications ................................................................................................. D-2 Environmental Specifications ........................................................................................ D-2 Index xiv 109351-F Rev.
Figures Figure 1-1. Figure 1-2. Figure 1-3. Figure 1-4. Figure 1-5. Figure 1-6. Figure 1-7. Standard Shipment Contents ...................................................................1-4 Optional Components ..............................................................................1-5 Locating the Mounting Holes ...................................................................1-8 Attaching Angle Brackets .........................................................................
Figure 5-5. Figure 5-6. Figure 5-7. Figure 5-8. Figure 5-9. Figure 5-10. Figure 5-11. Figure 6-1. Figure 6-2. Figure 6-3. Figure 6-4. xvi Locating the Tag SIMM ............................................................................5-7 Releasing the Tag SIMM Locking Tabs ....................................................5-8 Installing the Tag SIMM ............................................................................5-9 Locating the Fast Packet Cache SIMM ......................................
Tables Table 1-1. Table 1-2. Table 2-1. Table 3-1. Table 5-1. Table 5-2. Table A-1. Console Parameters ..............................................................................1-17 Modem Parameters ...............................................................................1-22 ASN Boot Options ....................................................................................2-1 ASN Status Indicators ..............................................................................
About This Guide Read this guide if you are responsible for installing and maintaining the Bay Networks® Access Stack Node (ASN™). The information in this guide assumes that you have experience installing computer equipment.
Installing and Maintaining ASN Routers and BNX Platforms Conventions angle brackets (< >) Indicate that you choose the text to enter based on the description inside the brackets. Do not type the brackets when entering the command. Example: if command syntax is ping , you enter ping 192.32.10.12 bold text Indicates text that you need to enter and command names in text. Example: Use the dinfo command. brackets ([ ]) Indicate optional elements. You can choose none, one, or all of the options.
About This Guide Acronyms 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms OSPF Open Shortest Path First PCMCIA Personal Computer Memory Card International Association PPP Point-to-Point Protocol PVC permanent virtual circuit RIP Routing Information Protocol SELV safety extra-low voltage SIMM single inline memory module SMDS switched multimegabit data service SNMP Simple Network Management Protocol SPEX Stack Packet Exchange SPEX-HS Stack Packet Exchange Hot Swap SRAM Static Random Access Memory TCP/I
Technical Support and Online Services To ensure comprehensive network support to our customers and partners worldwide, Bay Networks Customer Service has Technical Response Centers in key locations around the globe: • • • • • Billerica, Massachusetts Santa Clara, California Sydney, Australia Tokyo, Japan Valbonne, France The Technical Response Centers are connected via a redundant Frame Relay Network to a Common Problem Resolution system, enabling them to transmit and share information, and to provide liv
Installing and Maintaining ASN Routers and BNX Platforms Bay Networks Customer Service If you purchased your Bay Networks product from a distributor or authorized reseller, contact that distributor’s or reseller’s technical support staff for assistance with installation, configuration, troubleshooting, or integration issues. Customers can also purchase direct support from Bay Networks through a variety of service programs.
Technical Support and Online Services Bay Networks Information Services Bay Networks Information Services provide up-to-date support information as a first-line resource for network administration, expansion, and maintenance. This information is available from a variety of sources. World Wide Web The Bay Networks Customer Support Web Server offers a diverse library of technical documents, software agents, and other important technical information to Bay Networks customers and partners.
Installing and Maintaining ASN Routers and BNX Platforms Support Source CD This CD-ROM -- sent quarterly to all contracted customers -- is a complete Bay Networks Service troubleshooting knowledge database with an intelligent text search engine.
Technical Support and Online Services InfoFACTS InfoFACTS is the Bay Networks free 24-hour fax-on-demand service. This automated system has libraries of technical and product documents designed to help you manage and troubleshoot your Bay Networks products. The system responds to a fax from the caller or to a third party within minutes of being accessed. To use InfoFACTS in the United States or Canada, call toll-free 1-800-786-3228. Outside North America, toll calls can be made to 1-408-495-1002.
Chapter 1 Installing the ASN This chapter describes how to • • • • • • • • • • 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms Overview of the ASN The ASN is a multiprotocol router that provides network connectivity through the following net modules (I/O modules): • • • • • • • • • 10Base-T Dual Ethernet 100Base-T Ethernet Dual Sync Dual Sync/ISDN BRI Quad BRI Single-mode, Multimode, and Hybrid FDDI Dual Token Ring MCE1 Hardware compression (for use with the Dual Sync and Dual Sync/ISDN BRI net modules) The ASN has four positions in which you can install net modules.
Installing the ASN The ASN offers dynamic random access memory (DRAM) configurations of 8, 16, and 32 megabytes (MB), as well as an optional Fast Packet Cache that enhances performance. An optional high-power redundant power supply unit (HRPSU) is also available. The HRPSU is an external power supply that you can connect to an ASN for continuous operation in the event of an internal power supply failure. For information about the external power supply, refer to Installing and Maintaining the HRPSU.
Installing and Maintaining ASN Routers and BNX Platforms ACCESS STACK NODE RUN BOOT POWER DIAG One Access Stack Node — 8-MB configuration (Order No. 30001) — 16-MB configuration (Order No. 30002) — 32-MB configuration (Order No. 30003) Two hardware packages (Order No. 103081) for angle brackets and flanges containing — Four 10-32 x 0.5-inch panel-mount screws — Four cage nuts Two angle brackets (Order No. 108557) One hardware package (Order No.
Installing the ASN Stack Packet Exchange (SPEX) cable (Order No. 7141) SPEX terminator plug (Order No. 7140) Stack Packet Exchange Hot-Swap (SPEX) cable (Order No. 7166) Flash memory card, and the manual Configuring Your Router Using the Quick2Config Tool ASN0003A Figure 1-2. 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms Verify that the items you received match those named in the packing list affixed to the shipping container. Also, make sure that you received any additional cables you ordered. Caution: Inspect all items for damage that may have occurred during shipment. Ensure that the ASN front panel and the ports on the back panel are not damaged. If you detect damage, do not install the ASN. Contact your local Bay Networks Technical Response Center.
Installing the ASN Placing the ASN Before you place the ASN where you want it, make sure your installation site meets all spatial, electrical, and environmental requirements listed in Appendix D. To set up the ASN, you can do one of the following: • Install the ASN in an electronic enclosure rack as described in the next section. • Place the ASN on a flat, sturdy surface in the chosen location. If you are stacking ASNs, refer to the installation manual that shipped with the net module.
Installing and Maintaining ASN Routers and BNX Platforms 2. Locate the nearest two rail holes, below the area you just measured, that are 0.50 in. (1.27 cm) apart. The hole in the flange that you install on the ASN in Step 4 will align with the rail holes as shown in Figure 1-3. Router Flange Rack post 0.625" 0.500" Mounting hole locations Angle bracket supporting router mounted on back of rack post ASN0001A Figure 1-3. 3.
Installing the ASN d. Adjust each bracket vertically along the bracket slots until the bracket is 0.78 in. (1.98 cm) below the center of one hole in the front vertical support of the rack. e. Tighten the screws with a Phillips screwdriver. Access Stack Node Run Remote Power Local Power Boot Diag Height: 5.25 in. (13.3 cm) minimum Depth 19.5 in. (49.5 cm) minimum Screws (2 places) Bracket (2 places) Rail Cagenut If rack rail is not threaded, attach cagenut. ASN0004A Figure 1-4. 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms 4. Attach each flange to the ASN (Figure 1-5) as follows. The kit contains left and right rackmount flanges. a. Slide the tray out of the ASN enclosure approximately 4 inches to allow the flanges to be attached. b. Insert flange into the slot on the appropriate side of the chassis. c. Align countersunk hole in the flange with the threaded hole in the chassis. d.
Installing the ASN 5. Place the ASN on the angle brackets in the rack. Align the flange holes with the holes in the front vertical supports on the rack (Figure 1-6). If the rack holes are not threaded, place cagenuts over them. Access Stack Node Run Remote Power Boot Local Power Diag Cagenut screw (4 places) Rail without threaded holes Use cagenut ASN0006A Figure 1-6. 109351-F Rev. A Installing the ASN in an Enclosure Rack 6.
Installing and Maintaining ASN Routers and BNX Platforms If you are stacking nodes, refer to the installation maual that shipped with the net module for information on attaching cables to the net module. If you are not stacking nodes, go to the section “Setting the Slot ID.” If the ASN contains a SPEX net module, and you are not stacking nodes, you must insert a SPEX terminator plug (Order No. 7140) in both the IN and OUT ports of the net module.
Installing the ASN To set the slot ID: Insert a small screwdriver in the opening in the center of the slot ID selector (Figure 1-7). DCD SYNC 34001 DCD 1 2 OUT IN FR FC 3 F SPEX 34004 1 4 F 4 2 2 1 3 SPEX SLOT 4 1. 3 ASN0009A Figure 1-7. 2. Slot ID Selector Turn the selector in either direction so that the arrow on the selector points to the slot ID you want to use. After you set the slot ID, install the Flash memory card.
Installing and Maintaining ASN Routers and BNX Platforms If you are not stacking nodes, you must use one Flash memory card (with a valid boot image and configuration file) per ASN. If you are stacking nodes, you must use at least one card per stack; however, you can install additional cards in the stack for redundancy or added storage. Note: If you use more than one Flash memory card in a stack, the cards must have identical default boot images and default configuration files.
Installing the ASN To install the Flash memory card: Remove the panel covering the memory card receptacle at the back of the ASN (Figure 1-9). 1. Use a Phillips screwdriver to loosen the two screws on the panel. Then slide the panel up to remove it from the ASN. SYNC 34001 DCD DCD 1 2 IN OUT 3 F SPEX 34004 FR FC 4 F ASN0014A Figure 1-9. Accessing the Memory Card Receptacle 2. Position the card with the label facing up and the INSERT arrow pointing toward the card receptacle.
Installing and Maintaining ASN Routers and BNX Platforms Connecting Network Cables To connect network cables to the ASN: 1. Make sure the power switch on the ASN back panel is in the OFF position. 2. Connect the appropriate network cables to the ports on the net modules in your ASN. Connect the other ends of the network cables to the physical networks. Note: If you are stacking nodes, you must connect a power cable to each node in the stack.
Installing the ASN Although you do not need a console or modem connection to use EZ-Install, we strongly recommend it so that you can enter commands to the ASN and view messages. Note: If you stacked your nodes, you can connect a console or modem to each node in the stack; however, a single console or modem can control the whole stack. You can connect any combination of consoles or modems. For example, in a stack of four nodes, you might connect consoles to two nodes and modems to two nodes.
Installing and Maintaining ASN Routers and BNX Platforms 3. Attach the null modem crossover adapter to the 25-pin cable connector (Figure 1-10). 4. Insert the screws on the cable connector into the receptacle on the adapter connector and tighten each screw. Null modem adapter Console cable Screw receptacle Rotate to tighten screw ASN0057A Figure 1-10. 5.
Installing the ASN 6. Attach the 25-pin receptacle connector on the combined cable and adapter to the terminal’s host connector. After you connect a terminal console, go to Chapter 2 for instructions on starting the ASN on the network. Connecting a PC Console To connect a PC, you need the following items shipped with your ASN: • Serial console/modem cable with 9-pin receptacle to 25-pin plug connectors (Order No. 110307) • Null modem crossover adapter with two 25-pin receptacle connectors (Order No.
Installing and Maintaining ASN Routers and BNX Platforms Insert the 9-pin receptacle end of the console cable into the CONSOLE port on the ASN back panel (Figure 1-12). 1. -48VDC 7 . 0A PHY 1 SD B TX S RTN B Y P A S S FDDI-MM 34003 PHY A SD TX F P -48VDC ETHERNET 34000 XMT/RCV 2 2 1 2 DCD DCD SYNC 1 34001 F 3 OUT F RPSV PC cable Null modem adapter Console cable ASN0059A Figure 1-12. Connecting a PC Console to the ASN 2.
Installing the ASN Connecting a Modem This section describes how to cable your ASN to a modem if you need remote dialin access to the Bay Networks Technician Interface. Contact your network administrator to find out which software configuration option (Quick2Config, EZ-Install, Netboot, Directed Netboot, or Local Boot) you should use to start the ASN on the network. Chapter 2 describes how to connect the ASN to the network using EZ-Install, Netboot, Directed Netboot, or Local Boot.
Installing and Maintaining ASN Routers and BNX Platforms Table 1-2. Modem Parameters Parameter Value Baud Rate 9600 (or less) Auto Answer Set on n rings with DTR active. (The value n must be greater than 0. If set to 0, Auto Answer is disabled.) Clear to Send (CTS) signal Always on Data Terminal Ready (DTR) signal DTR signal fail-disconnect enabled (return to command mode, Auto Answer off). 1-22 Data Carrier Detect (DCD) signal DCD signal on while carrier present.
Installing the ASN PHONE DWR (LEASE 3810 DIAL NMS DTE (LEASED) 3810 -48VDC 7 . 0A PHY 1 RTN SD B TX S -48VDC B Y P A S S FDDI-MM 34003 PHY A SD TX F P ETHERNET 34000 XMT/RCV 2 2 1 2 DCD DCD SYNC 1 34001 F 3 OUT F RPSV Modem cable ASN0060A Figure 1-13. Connecting a Modem to the ASN 5. Insert the 25-pin plug at the other end of the modem cable into the modem’s RS-232 data communications port. The modem is now connected to the ASN.
Installing and Maintaining ASN Routers and BNX Platforms Connecting the HRPSU to the ASN To connect the optional high-power redundant power supply unit (HRPSU) to the ASN: 1. Use a Phillips screwdriver to remove the two screws that hold the HRPSU cover plate in place (Figure 1-14). 2. Refer to Installing and Maintaining the HRPSU for instructions on installing the HRPSU and connecting it to your ASN. PHY 1 SD TX B S B Y P A S S PHY A P XMT/RCV 2 2 Screws Figure 1-14.
Chapter 2 Starting the ASN This chapter describes how to • • • • • • Understand the ASN boot options Start an ASN for the first time Use EZ-Install Use Netboot Use Directed Netboot Use Local Boot (the Quick-Start procedure) Understanding the ASN Boot Options Table 2-1 provides an overview of the different ways you can boot an ASN. Table 2-1. ASN Boot Options Boot Option Description EZ-Install The network automatically supplies the configuration information necessary to boot the router.
Installing and Maintaining ASN Routers and BNX Platforms Table 2-1. ASN Boot Options (continued) Boot Option Description Netboot The network supplies the ASN’s configuration file. The software image can come from either the ASN’s local file system or from the network. Netboot requires a console or modem connection to the router.
Starting the ASN After successfully completing EZ-Install, the ASN is connected to the Site Manager workstation over the network. Your network administrator can then manage the ASN remotely, and, if desired, configure the router to use Netboot, Directed Netboot, or Local Boot for subsequent boot procedures. If your network administrator has not configured the network for EZ-Install, the procedure fails, and the ASN automatically uses the Local Boot procedure.
Installing and Maintaining ASN Routers and BNX Platforms When the ASN boots, its LEDs flash in a particular order. Refer to Chapter 3 for information on checking the LEDs on the ASN front panel to make sure the router is operating properly. Using Netboot You must have at least one synchronous or Ethernet interface to use the Netboot procedure. Ask your network administrator to verify that the network is set up so that you can use the Netboot procedure.
Starting the ASN The Technician Interface screen should display the $ prompt. 5. Enter the appropriate ifconfig command (refer to Figure 2-1) to configure the ASN’s interface to the network. The following is a sample command: ifconfig -s1 com21 9.0.0.2 255.0.0.0 9.0.0.1 Refer to Appendix B for more information about the ifconfig command. 6.
Installing and Maintaining ASN Routers and BNX Platforms $ getcfg BOOT Options: boot image = local boot config = network Verify NetBoot Parameters: Slot 1: XCVR11..IP=192.32.33.34, Mask=255.255.255.255 XCVR12..None COM21..IP=9.0.0.2, Mask=225.0.0.0., Next Hop=9.0.0.1 COM22..EZ-Install (disabled) ASN0015A Figure 2-2. Verifying the Interface Configuration Note: The location of the image and configuration files is specified as either Local or Network. Local means the asn.
Starting the ASN 7. Enter the following command to boot the ASN: boot Your console displays messages indicating the progress of the Netboot procedure. When you boot the ASN, its LEDs flash in a particular order. Refer to Chapter 3 for information on checking the LEDs on the ASN front panel to make sure the router is operating properly. Using Directed Netboot Ask your network administrator to verify that the network is set up so that you can use the Directed Netboot procedure.
Installing and Maintaining ASN Routers and BNX Platforms Before you can use the Directed Netboot procedure, you must have already used the ifconfig command (as described in the previous section) to configure the interface from which you plan to use Directed Netboot. In the case of a synchronous interface, you might also need a next-hop address if there is another router between the host server and the ASN. Refer to Appendix B for more information about the ifconfig command.
Starting the ASN 6. Enter the following command to verify the configuration you specified in Step 5 (Figure 2-4): getcfg $ getcfg BOOT Options: boot image = network boot config = network host IP address=192.32.5.8 image pathname= "/usr/asnstartup/krnl_asn.exe" config pathname= "usr/asnstartup/config" Verify NetBoot Parameters: Slot 1: 23=255.255.255.255 XCVR12..None COM21..IP=9.0.0.2, Mask=225.0.0.0., Next Hop=9.0.0.1 COM22..EZ-Install (disabled) ASN0016A Figure 2-4.
Installing and Maintaining ASN Routers and BNX Platforms 7. Enter the following command to boot the ASN: boot When you boot the ASN, its LEDs flash in a particular order. Refer to Chapter 3 for information on checking the LEDs on the ASN front panel to make sure the router is operating properly. Using Local Boot (the Quick-Start Procedure) Ask your network administrator to verify that the network is set up so that you can use the Local Boot procedure.
Starting the ASN 6. Enter the following command to boot the ASN: boot When you boot the ASN, its LEDs flash in a particular order. Refer to Chapter 3 for information on checking the LEDs on the ASN front panel to make sure the router is operating properly. Then go to Step 7. 7. Log in to the Technician Interface again (as described in Step 4). When the Technician Interface prompt appears, enter the following command to mount the ASN’s local file system: cd : slot is the slot ID of the ASN.
Installing and Maintaining ASN Routers and BNX Platforms Contact your local Bay Networks Technical Response Center if you need additional assistance. 2-12 109351-F Rev.
Chapter 3 Operating the ASN This chapter describes how to • Turn an ASN on and off • Reset an ASN • Check the status of the ASN through its front-panel and net module LEDs • Remove the Flash memory card • Protect the files on the Flash memory or SRAM card • Change physical stack configurations Turning the ASN On and Off Before turning on the ASN, refer to Chapter 2 to determine how you want to start the ASN on the network.
Installing and Maintaining ASN Routers and BNX Platforms PHY 1 SD B TX S B Y P A S S FDDI-MM 34003 PHY A SD TX F P ETHERNET 34000 XMT/RCV 2 2 1 2 DCD DCD SYNC 1 34001 F 3 OUT F CONSOLE RPSU SPEX SLOT Power switch ASN0023A Figure 3-1. Power Switch Caution: If your stack uses SPEX net modules, you can turn on the nodes in a stack in any order; however, you must turn on all nodes within 30 seconds. If you are unable to do so, the nodes you turned on will fail.
Operating the ASN Similarly, you can turn off any node in the stack without affecting the operation of the other nodes. Make sure that the Flash memory card -- containing the boot image and configuration file -- is installed in a node that is turned on and cabled to the stack. Resetting the ASN You can press the Reset button on the ASN to warm-start the router. Pressing Reset is the same as using the reset command for a specific slot from Site Manager or the Bay Networks Technician Interface.
Installing and Maintaining ASN Routers and BNX Platforms Caution: If you press the Reset button on an ASN in a stack, only that unit resets. Be sure to press Reset on each unit in the stack if you intend to reset the entire stack. You can also use the reset command (without arguments) to reset the stack. Checking Status Indicators This section describes how to check the status of the router using the ASN LEDs.
Operating the ASN Table 3-1 describes how the Run, Boot, and Diag LEDs indicate the ASN status. Table 3-1.
Installing and Maintaining ASN Routers and BNX Platforms Removing the Flash Memory Card BayStream software requires the presence of at least one PCMCIA SRAM card to collect billing and performance data. Use the procedures described in this section to remove PCMCIA SRAM cards. To remove the Flash memory or SRAM card: Remove the panel covering the memory card receptacle at the back of the ASN (Figure 3-4). 1. To remove the panel, loosen the two screws on the panel.
Operating the ASN 3 SYNC 34001 SD DCD DCD 1 2 TX F F IN OUT ETHERNET 34000 FR FC F Eject button CONSOLE ASN0030A Figure 3-5. 3. Removing the Flash Memory Card from the Receptacle To insert another card into the receptacle, refer to “Installing the Flash Memory Card” in Chapter 1. Note: If you install a new Flash memory or SRAM card that you did not obtain from Bay Networks, you must format the card before trying to write to it.
Installing and Maintaining ASN Routers and BNX Platforms To change memory card protection: 1. Remove the memory card. Caution: You must remove the card from the router before changing the read-write protection. Failure to remove the card may result in improper write protection. 2. Adjust the read-write protect switch, which is located on the edge opposite the INSERT arrow of the memory card (Figure 3-6). Unprotected Protected 6948 Figure 3-6. 3.
Operating the ASN Changing Physical Stack Configurations If you operate your ASNs in a stacked configuration, at some point you might need to add or remove a node in the stack. The steps you follow to add or remove a node depend on whether you are using SPEX or SPEX-HS net modules. The following sections describe the procedures for each of the two net modules. Refer only to the procedure for the type of net module that you use in your ASN stack.
Installing and Maintaining ASN Routers and BNX Platforms Removing a Node from a Stack with SPEX Net Modules To remove a node from a stack (for example, if the node needs repairs or if you want fewer nodes in the stack): 1. Turn off all nodes in the stack, as described earlier in this chapter. 2. Remove the SPEX cable (and terminator, if there is one) from the SPEX net module on the node you want to remove. 3.
Operating the ASN Adding a Node to a Stack with SPEX-HS Net Modules If you are adding a node that has a Flash memory card, and there is already at least one Flash memory card in the stack, the cards must have identical default boot images and default configuration files. If this is not the case, remove the Flash memory cards that do not have the correct image, or update the cards so they all have the same image. To add a node to an existing stack, follow the steps in this section.
Installing and Maintaining ASN Routers and BNX Platforms Removing a Node from a Stack with SPEX-HS Net Modules To remove a node from a stack (for example, if the node needs repairs or if you want fewer nodes in the stack): 1. Turn off the node you want to remove from the stack. 2. Remove the SPEX-HS cables from the SPEX-HS net module on the node you are removing. The other nodes in the stack remain operational. 3.
Chapter 4 Opening and Closing the ASN This chapter describes how to • Remove the component tray • • Replace the component tray Attach the antistatic wrist strap You must remove the component tray to replace • • • Memory modules Net modules System board Chapters 5 and 6 describe how to replace these components. Danger: Due to high energy hazards, only qualified service personnel are permitted to install or replace components in an ASN.
Installing and Maintaining ASN Routers and BNX Platforms Removing the Component Tray To remove the component tray: 1. Turn off the ASN. 2. Detach all cables from the ASN back panel. 3. Using a Phillips screwdriver, loosen the two captive screws that fasten the tray to the chassis (Figure 4-1). 4. Pull the two captive screws and gently slide the tray out of the chassis a few inches (Figure 4-1). Hold the sides and bottom of the tray to support it as you slide it out.
Opening and Closing the ASN Phillips screwdriver Captive thumbscrews Component tray ASN0031A Figure 4-1. Removing the Component Tray The net module ports are exposed at the back end of the component tray. To perform maintenance tasks on the ASN components, face the back end of the tray. 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms Replacing the Component Tray To replace the component tray: 1. Gently slide the tray into the chassis. 2. Use a Phillips screwdriver to tighten the two captive screws that fasten the tray to the chassis (refer to Figure 4-1). 3. Reattach the cables to the proper connectors on the back panel. 4. Turn on the ASN. Attaching the Antistatic Wrist Strap Your ASN comes with an antistatic wrist strap.
Opening and Closing the ASN To attach the antistatic wrist strap: 109351-F Rev. A 1. Remove the component tray. 2. Remove the strap, alligator clip, and cable from the package. 3. Attach (snap) the snap end of the cable to the wrist strap. 4. Place the strap around your wrist. Adjust the strap to ensure that the metal buckle inside the strap touches your skin. 5. Plug the jack at the other end of the cable into the opening on the alligator clip. 6.
Chapter 5 Removing and Installing Memory Modules This chapter describes how to • • • • • • Remove DRAM SIMMs Install DRAM SIMMs Remove the Tag SIMM Install the Tag SIMM Remove the Fast Packet Cache SIMM Install the Fast Packet Cache SIMM Danger: Due to high-energy hazards, only qualified service personnel are permitted to install or replace components in an ASN. Reviewing the ASN SIMM Types The ASN uses SIMMs to provide 109351-F Rev. A • Dynamic random access memory (DRAM).
Installing and Maintaining ASN Routers and BNX Platforms The ASN supports configurations of 8, 16, and 32 MB of DRAM. Table 5-1 shows the DRAM SIMM requirements for each configuration. Table 5-1. DRAM Requirements Configuration SIMM Capacity Number of SIMMs 8 MB 1 MB by 36 2 16 MB 2 MB by 36 2 32 MB 4 MB by 36 2 The capacity of the SIMM you use for Tag memory depends on the DRAM configuration. Table 5-2 shows the Tag SIMM requirements for each configuration. Table 5-2.
Removing and Installing Memory Modules Removing DRAM SIMMs You may need to remove DRAM SIMMs if you are upgrading the ASN memory configuration. Figure 5-1 shows the location of the DRAM SIMMs. To remove each of the DRAM SIMMs: 1. Remove the component tray and attach the antistatic wrist strap, as described in Chapter 4. DRAM SIMMs ASN0032A Figure 5-1. Locating the DRAM SIMMs You must first remove the SIMM closest to the front of the tray.
Installing and Maintaining ASN Routers and BNX Platforms 2. Press the locking tabs on each side of the SIMM and pull the SIMM outward to release the board. The SIMM tilts back at a slight angle toward the front of the tray (Figure 5-2). Locking tabs Locking tabs Locking tabs ASN0033A Figure 5-2. 3. 5-4 Releasing the DRAM SIMM Locking Tabs Grasp the top corners of the board and pull it up and out of the connector. 109351-F Rev.
Removing and Installing Memory Modules Installing DRAM SIMMs When you install DRAM SIMMs, make sure that the SIMMs are the same size. For example, you can install two 2-MB by 36 SIMMs for a 16-MB configuration; however, do not install one 1-MB by 36 and one 2-MB by 36 SIMM. Also make sure that you are using the correct capacity Tag SIMM for your DRAM configuration (refer to Table 5-2). Before you perform this procedure, be sure to attach the antistatic wrist strap, as described in Chapter 4.
Installing and Maintaining ASN Routers and BNX Platforms 2. Pull the SIMM toward the back of the tray until the locking tabs snap into place (Figure 5-4). ASN0035A Figure 5-4. 5-6 Installing the DRAM SIMM 109351-F Rev.
Removing and Installing Memory Modules Removing the Tag SIMM You need to replace the Tag SIMM (Figure 5-5) if you are upgrading the ASN DRAM configuration to 32 MB. Table 5-2, shown earlier, lists the Tag SIMM requirements for the different DRAM configurations. To remove the Tag SIMM: 1. Remove the component tray and attach the antistatic wrist strap, as described in Chapter 4. Tag SIMM ASN0036A Figure 5-5. 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms 2. Press the locking tabs on both sides of the SIMM and pull the SIMM outward to release the board (Figure 5-6). Locking Tab Locking Tab ASN0037A Figure 5-6. 5-8 Releasing the Tag SIMM Locking Tabs 3. Grasp the top corners of the board and gently pull it toward you at a slight angle to the system board. The SIMM naturally positions itself at an angle as you pull it. 4. Lift the SIMM out of the connector. 109351-F Rev.
Removing and Installing Memory Modules Installing the Tag SIMM Before you perform this procedure, be sure to attach the antistatic wrist strap, as described in Chapter 4. To install the Tag SIMM: 1. Grasp the SIMM by the top corners and place it into the connector at a slight angle (Figure 5-7). The SIMM is keyed to fit in the connector only one way. As you face the back end of the component tray, orient the SIMM so that the notch on the board is in the bottom-right corner (Figure 5-7).
Installing and Maintaining ASN Routers and BNX Platforms Removing the Fast Packet Cache SIMM You need a pair of needle-nose pliers to perform this procedure. To remove the Fast Packet Cache SIMM: 1. Remove the component tray and attach the antistatic wrist strap, as described in Chapter 4. Figure 5-8 shows the location of the Fast Packet Cache SIMM. Fast Packet Cache SIMM ASN0039A Figure 5-8. 5-10 Locating the Fast Packet Cache SIMM 109351-F Rev.
Removing and Installing Memory Modules 2. For each of the three plastic standoffs that hold the Fast Packet Cache SIMM in place: a. Use your needle-nose pliers to pinch the end of the standoff. b. While using the pliers to push down on the standoff, lift up on the SIMM just enough to release it from the standoff (Figure 5-9). Standoffs ASN0064A Figure 5-9. 3. 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms Installing the Fast Packet Cache SIMM Before you perform this procedure, attach the antistatic wrist strap, as described in Chapter 4. You also need a pair of needle-nose pliers to perform this procedure. The Fast Packet Cache SIMM ships with four preinstalled plastic standoffs. If you are replacing the SIMM (that is, installing one in place of one you just removed), you must remove all of the preinstalled standoffs (Figure 5-10).
Removing and Installing Memory Modules To install the Fast Packet Cache SIMM: 1. Align the connector on the SIMM with the connector on the system board (Figure 5-11). If you are installing the SIMM for the first time, align the standoffs on the SIMM with the mounting holes on the system board. If you are replacing the SIMM, align the mounting holes on the SIMM with the plastic standoffs already installed on the system board. Mounting holes Connector ASN0066A Figure 5-11. 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms 2. Press the SIMM into place. Make sure each standoff is securely fastened (it should click into place). 5-14 109351-F Rev.
Chapter 6 Replacing the System Board This chapter describes how to • • Remove the system board Install the system board To remove and install the system board, you need a Phillips screwdriver and a nut driver. Danger: Due to high-energy hazards, only qualified service personnel with written authorization from Bay Networks are permitted to install or replace components in an ASN. Removing the System Board To remove the system board: 109351-F Rev. A 1.
Installing and Maintaining ASN Routers and BNX Platforms Power supply connectors Remote power supply connector Figure 6-1. 6-2 Fan module connectors ASN0048A Removing Power Supply and Fan Module Connectors 5. Disconnect the remote power supply connector (P12) on the system board (refer to Figure 6-1). To do this, press down on the end of the locking tab closest to the cables leading into the connector and pull the connector out of its socket. 6.
Replacing the System Board Use a nut driver to remove the two hexagonal nuts that secure the CONSOLE connector (Figure 6-2). 7. PHY A FDDI-MM 34003 SD 2 P DCD ETHERNET 34000 1 F CONSOLE ASN0049A Figure 6-2. 109351-F Rev.
Installing and Maintaining ASN Routers and BNX Platforms 8. Use a Phillips screwdriver to remove the four Phillips screws shown in Figure 6-3. Phillips screws ASN0050A Figure 6-3. 6-4 Removing the Phillips Screws 109351-F Rev.
Replacing the System Board 9. Lift up each edge of the system board, except the edge at the back right of the component tray. The edge at the back right has a cutout (Figure 6-4) in which you can insert your finger to push up on the system board. Push up on the edges of the system board to release the self-locking screws that secure it to the tray. You must release all 7 self-locking screws. Cutout ASN0051A Figure 6-4. Cutout on Component Tray 10.
Installing and Maintaining ASN Routers and BNX Platforms Installing the System Board To install the system board: 1. Slide the system board into the component tray. Make sure that the Console port and the Flash memory card receptacle slide into their openings at the back of the component tray. 6-6 2. Press the system board into place to secure the seven self-locking screws. 3. Replace the system board screws shown earlier in Figure 6-3. 4.
Appendix A Solving Problems This appendix describes how to identify and remedy some of the problems you may encounter with an ASN or ASN stack. Identifying Problems If a problem occurs, check the LEDs on the ASN front panel and on the net modules. Also, be sure to check the LEDs before you reset or shut off the ASN. Table A-1 identifies different LED patterns and the problems they indicate depending on whether the ASN booted successfully. Table A-1.
Installing and Maintaining ASN Routers and BNX Platforms Table A-1. Problems Indicated by LEDs (continued) ASN DIAG LED Net Module Successful FAIL LED Boot? Cause Flashing, alternating with RUN LED On or Off Yes or No SPEX or SPEX-HS cabling problem. Off On or Off Yes Flash memory card may be missing, or may not contain a valid boot image and configuration file.
Solving Problems Solving Configuration Problems If the ASN is running, but is not working properly, verify that the router’s slot ID matches the one in the configuration file. To edit a configuration file, refer to Configuring Routers (router software) or Getting Started with Site Manager (BayStream software). If the configuration file does not have the correct slot ID, you can either • Change the slot ID on the ASN to match the configuration file.
Installing and Maintaining ASN Routers and BNX Platforms If two or more nodes in a stack have the same slot ID, the nodes may pass diagnostics. However, errors can occur and the nodes will act unpredictably. Make sure that each ASN in the stack has a unique slot ID. Refer to Chapter 1 for information on setting the slot ID.
Solving Problems SPEX Net Module Failures This section describes how to respond if a SPEX net module failure occurs. If you use SPEX-HS net modules, refer to the next section, “SPEX-HS Net Module Failures.” If a SPEX failure occurs: 1. Make sure all ASNs in the stack are on. Check the ASN Power LED. If the LED is off, check that -- The ASN is properly connected to a power source. Refer to the section “Connecting to the Power Source” in Chapter 1 for more information.
Installing and Maintaining ASN Routers and BNX Platforms b. Make sure the Flash memory card (with a valid boot image and configuration file) is installed in one of the remaining nodes in the stack. c. Cycle the power (turn the ASN off and then on again) on any node that had a SPEX failure. If the remaining nodes in the stack pass powerup diagnostics and do not show a SPEX failure, then the ASN that you removed from the stack has a problem that corrupts the stack.
Solving Problems 4. Verify that the SPEX-HS net module is installed in Position 4 in each ASN in the stack. Also make sure that the net module is properly seated in its connector on the system board. If the SPEX-HS net module is not in Position 4, refer to the installation manual that shipped with your net module for instructions on how to remove the net module from its current position and install it in the correct position. 5.
Installing and Maintaining ASN Routers and BNX Platforms Solving Technician Interface Connection Problems If the ASN and net module LEDs do not indicate a problem (that is, they indicate that the ASN has booted), but you are unable to access the ASN from the Technician Interface, check the Technician Interface connection by verifying that • The console or modem is properly connected to the ASN. Refer to Chapter 1 for instructions on setting up console and modem connections.
Appendix B Configuring the ASN for Netboot and Directed Netboot This appendix explains how to • Use the ifconfig command to configure the node’s initial IP interface to the network. You need this information to complete the procedure in “Using Netboot,” in Chapter 2. • Use the bconfig command to specify the location and name of the router’s software image and configuration file. You need this information to complete the procedure in “Using Directed Netboot,” in Chapter 2.
Installing and Maintaining ASN Routers and BNX Platforms Configuring the Initial IP Interface To netboot the ASN, you must first configure the node’s initial IP interface to the network using the following command: ifconfig [-s] [synchronous options] [] where [synchronous options] indicates some combination of the following settings: [-d | -fr [ -annexd | -annexa | -lmi ] | -int_clk] Note: You must insert a space to separate each command option from th
Configuring the ASN for Netboot and Directed Netboot Configuring a Synchronous Interface for Network Booting Table B-1 describes the ifconfig command settings for configuring a synchronous interface. Table B-1. Setting ifconfig Command Settings for a Synchronous Interface Description Slot setting: -s Specifies the slot containing the interface you want to configure. The slot corresponds to the ASN slot ID, which can be 1 through 4. If you omit this argument, ifconfig uses the current slot.
Installing and Maintaining ASN Routers and BNX Platforms Table B-1. Setting ifconfig Command Settings for a Synchronous Interface (continued) Description IP Address settings: Specifies the IP address of the interface you set with . Provide this address in dotted decimal notation. Specifies the IP subnet mask of the interface you selected with the setting. Provide this address in dotted decimal notation.
Configuring the ASN for Netboot and Directed Netboot Table B-2. Setting ifconfig Command Settings for an Ethernet Interface (continued) Description IP Connector setting: Specifies the type of IP connector you are configuring. Use xcvr, where module corresponds to the position of the net module in the ASN (1 through 4) and connector corresponds to the port (1 or 2). IP Address settings: Specifies the IP address of the interface you set with .
Installing and Maintaining ASN Routers and BNX Platforms Using the bconfig Command To use Directed Netboot, you must use the bconfig command to specify • The IP address of the server where the router’s software image or configuration file or both reside • The full path name of the software image and configuration file You must use the bconfig command once to specify the location of the software image, and again to specify the location of the configuration file.
Configuring the ASN for Netboot and Directed Netboot Table B-4. bconfig Command Options (continued) Option Description Specifies the complete path name of the software image or configuration file on the host. -d Resets the default values for the software image or configuration file. The command bconfig -d image tells the router to look for the image file locally, and nullifies the IP address and path name for the file.
Appendix C Using Local Boot (the Quick-Start Procedure) This appendix explains how to local-boot the ASN using the Quick-Start procedure. You need this information to complete the procedure in “Using Local Boot (the Quick-Start Procedure),” in Chapter 2. The Quick-Start procedure is the initial configuration that gets a Bay Networks router up and running on the network. The procedure enables the Internet Protocol (IP), so that the router can connect to Site Manager.
Installing and Maintaining ASN Routers and BNX Platforms Filling Out the Quick-Start Worksheets The install.bat script provides many options for configuring the ASN on a network. Because typical remote access uses a synchronous interface over a wide-area connection, this section lists only the options involved with a synchronous configuration. Note: This section only provides worksheets for a synchronous interface configuration over a wide-area connection.
Using Local Boot (the Quick-Start Procedure) Global Information Worksheet This section contains requested information and possible options for configuring a synchronous interface on the ASN. Global Information Worksheet Step Requested Information 1 Specify the slot number where the net The ASN lists the slots and modules module resides. that are currently available. Enter the slot number that corresponds to the slot ID of the ASN. Valid values are 1 through 4.
Installing and Maintaining ASN Routers and BNX Platforms Global Information Worksheet (continued) Your Information Step Requested Information Options 3 Enter IP address in dotted decimal notation: Enter the IP address for the COM interface. Enter the subnetwork mask in dotted decimal notation: Enter the subnet mask for the COM interface IP address. Is the router connected to the same local area network as the Site Manager workstation? (y/n) [n]: y(es) n(o) Press the Return key.
Using Local Boot (the Quick-Start Procedure) Router Protocol Worksheets This section contains requested information and possible options relating to the router protocol choices on the Global Worksheet. RIP Worksheet Requested Information Options Should RIP listen to the default route? (y/n) [n]: y(es) n(o) Your Information Note: RIP listens to a specific network or subnet route where Site Manager is located. Answering y(es) forces RIP to also listen to the default route (0.0.0.0).
Installing and Maintaining ASN Routers and BNX Platforms OSPF Worksheet (continued) Requested Information Options Enter OSPF MTU size selection [1]: 1. Default 2. Ethernet size (Bay Networks Series 5 compatible) Your Information Enter OSPF interface type selection [1]: 1. Broadcast 2. NBMA (Non-Broadcast Multi-Access) 3. Point-to-Point Note: When using a wide-area protocol other than Bay Networks Proprietary PPP, we suggest selecting NBMA.
Using Local Boot (the Quick-Start Procedure) OSPF Worksheet (continued) Requested Information Options Enter IP address of neighbor in dotted decimal notation or enter q to quit: Enter the addresses for all NBMA neighbors you want the router to communicate with. Your Information (For NBMA only) Type q and press the Return key when you finish entering addresses. Enter IP address of neighbor in dotted decimal notation: Enter the addresses for the PPP neighbors you want the router to communicate with.
Installing and Maintaining ASN Routers and BNX Platforms Wide-Area Protocol Worksheets This section contains requested information and possible options relating to wide-area protocol choices on the Global Worksheet. Bay Networks Proprietary PPP Worksheet Requested Information Options Enter BofL (Breath of Life) timer value (1-60) [5]: Enter the maximum amount of time that can elapse between the successful transmission of BOFL messages. Enter Local Address Selection [3]: 1. DCE 2. DTE 3.
Using Local Boot (the Quick-Start Procedure) Frame Relay Worksheet Requested Information Options Enter Management type [3]: 1. DLCMI none 2. Rev 1 LMI 3. ANSI T1 617D 4. CCITT Annex A 5. LMI switch 6. Annex D switch 7. Annex A switch Enter Addressing type [4]: 1. 2. 3. 4. Enter Address field length: 2. Two bytes 3. Three bytes 4. Four bytes Enter DLCI number [30]: Enter the permanent virtual circuit (PVC) number.
Installing and Maintaining ASN Routers and BNX Platforms PPP Standard Worksheet (continued) Requested Information Options Does the Remote Peer have PAP authentication enabled? (y/n) [n]: y(es) n(o) Your Information Note: If you answer y(es), the router requests the PAP ID for the remote interface.
Using Local Boot (the Quick-Start Procedure) SMDS Worksheet Requested Information Options Your Information Enter 10-digit individual address: Enter the individual address assigned to you by your SMDS service provider. Enter 10-digit group address: Enter the group address assigned to you by your SMDS service provider. Enter 10-digit ARP address: Enter the Address Resolution Protocol (ARP) address assigned to you by your SMDS service provider.
Installing and Maintaining ASN Routers and BNX Platforms Running the Quick-Start Script After you enter run install.bat, the ASN progresses through the Quick-Start script as follows: 1. The ASN prompts you for the initial Global Worksheet information. 2. After you select a router protocol option, the ASN prompts for specific protocol information. 3. After finishing the router protocol configuration, the ASN requests a wide-area protocol selection. 4.
Appendix D Technical Specifications This appendix provides • • Physical, electrical, and environmental specifications Requirements for european operation Physical Specifications The dimensions of the ASN are as follows: • • • Height: 4.33 in. (10.99 cm) Width: 17.5 in. (44.45 cm) Depth: 17.0 in. (43.18 cm) Your installation site must provide a certain amount of free space around the ASN to dissipate heat.
Installing and Maintaining ASN Routers and BNX Platforms If you are installing your ASN in an electronic enclosure rack, make sure the rack meets the following specifications: • • • • Heavy-duty steel construction Electronic Industries Association (EIA) standard hole-spacing Panel width of 19.5 in. (50 cm) Depth of 24.15 in. (64 cm) Caution: If the rack is equipped with panels, doors, or a top panel, you must screen them to prevent overheating.
Index A Access Stack Node (ASN) adding a node to a stack, 3-11 clearance requirements, D-1 CONSOLE port, 1-18, 1-19, 1-22 installing in a rack, 1-7 to 1-11 LEDs, 3-4 placing on a flat surface, 1-7 removing a node from a stack, 3-10, 3-12 resetting, 3-3 status indicators, 3-4 turning on, 3-1 wall receptacle requirements, D-2 warm-starting, 3-3 adding a node to stack, 3-11 ANSI console connecting to Access Stack Node, 1-16 to 1-19 asn.
Installing and Maintaining ASN Routers and BNX Platforms Directed Netboot defined, 2-2 using, 2-7 to 2-10 DLCMI settings, B-3 drivers, C-3 Dynamic Random Access Memory (DRAM) SIMMs, 5-2 configurations, 1-3 installing, 5-5 removing, 5-3 E electrical specifications, D-2 electronic enclosure rack physical specifications, D-2 environmental specifications, D-2 EZ-Install default settings, 2-10 description of, 2-1 using, 2-3 F Fast Packet Cache SIMM installing, 5-12 purpose of, 5-1 removing, 5-10 file asn.
Index configurations, 5-2 installing, 5-5 removing, 5-3 Fast Packet Cache SIMM installing, 5-12 purpose of, 5-1 removing, 5-10 Flash card installing, 1-13 removing, 3-6 Tag SIMM installing, 5-9 purpose of, 5-1 removing, 5-7 types of SIMMs, 5-1 modem connecting to Access Stack Node, 1-21 mother board replacing, 6-1 mounting brackets installing, 1-8 PC connecting to Access Stack Node, 1-16, 1-19 port CONSOLE, 1-18, 1-19, 1-22 power cables connecting, 1-16 specifications, D-2 powering on Access Stack Node, 3-
Installing and Maintaining ASN Routers and BNX Platforms S setting slot ID, 1-12 SIMM. See Single Inline Memory Modules (SIMMs) Single Inline Memory Modules (SIMMs) DRAM, 5-2 installing, 5-5 removing, 5-3 Fast Packet Cache, 5-1 installing, 5-12 removing, 5-10 Tag installing, 5-9 purpose of, 5-1 removing, 5-7 types of, 5-1 site requirements, D-1 slot ID, setting, 1-12 number, C-3 positions for net modules, 1-2 SMDS, C-4 specifications electrical, D-2 environmental, D-2 SPEX.