Cisco 1721 Router Hardware Installation Guide Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.
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CONTENTS Preface xi Audience and Scope xi Organization xi Related Documentation xii Conventions xiii Notes, Cautions, and Warnings xiii Commands xvi Obtaining Documentation xvi Cisco.
Contents Router Memory 1-7 Types of Memory 1-8 Amounts of Memory 1-8 Unpacking the Router 1-9 Additional Required Equipment 1-9 CHAPTER 2 Installation 2-1 Before Installing the Router 2-1 Connecting the Router to Your Local Network 2-2 Installing WICs 2-4 Safety Information 2-4 WIC Installation 2-5 Connecting Power to the Router 2-8 Verifying Your Installation 2-9 Optional Installation Steps 2-10 Connecting a PC 2-10 Connecting a Modem 2-12 Wall-Mounting 2-13 Stacking the Router 2-14 Unstacking the Rout
Contents OK LED Diagnostics 3-7 Troubleshooting WICs and Cables 3-8 Troubleshooting the Power System 3-10 Troubleshooting ISDN 3-11 APPENDIX A Technical Specifications A-1 APPENDIX B Cabling Specifications B-1 Ethernet Cables B-1 Ethernet Network Cabling Guidelines B-2 Console Cable and Adapter B-3 APPENDIX C Installing and Upgrading Memory and Virtual Private Network Modules C-1 Safety Warnings C-1 Opening the Chassis C-2 Locating Modules C-4 Installing a DIMM C-5 Installing a VPN Module C-6 Clos
Contents Bandwidth on Demand and Dial Backup D-7 INDEX Cisco 1721 Router Hardware Installation Guide x 78-13834-02
Preface This section discusses the intended audience, scope, and organization of the Cisco 1721 Router Hardware Installation Guide and defines the conventions used to convey instructions and information. Audience and Scope This guide is for users who have some experience installing and maintaining networking hardware. Cisco 1721 router users should be familiar with the terminology and concepts of local Ethernet and wide-area networking.
Preface Related Documentation • Appendix A, “Technical Specifications,” lists the physical characteristics, environmental requirements, and power specifications for the router. • Appendix B, “Cabling Specifications,” describes the cables and cabling guidelines for the router. • Appendix C, “Installing and Upgrading Memory and Virtual Private Network Modules,” describes how to install or upgrade memory modules in your router.
Preface Conventions Conventions This guide uses the following conventions for information and instructions. Notes, Cautions, and Warnings Notes, cautions, and warnings use the following conventions and symbols: Note Caution Warning Waarschuwing Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual. This caution symbol means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.
Preface Conventions Varoitus Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).
Preface Conventions Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker.
Preface Obtaining Documentation Commands Table 1 describes the syntax used with the commands in this document. Table 1 Command Syntax Guide Convention Description boldface Commands and keywords. italic Command input that is supplied by you. [ Keywords or arguments that appear within square brackets are optional. ] {x | x | x} A choice of keywords (represented by x) appears in braces separated by vertical bars. You must select one. ^ or Ctrl Represent the key labeled Control.
Preface Obtaining Documentation Cisco.com You can access the most current Cisco documentation at this URL: http://www.cisco.com/univercd/home/home.htm You can access the Cisco website at this URL: http://www.cisco.com You can access international Cisco websites at this URL: http://www.cisco.com/public/countries_languages.shtml Documentation DVD Cisco documentation and additional literature are available in a Documentation DVD package, which may have shipped with your product.
Preface Documentation Feedback • Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 1 800 553-NETS (6387). Documentation Feedback You can send comments about technical documentation to bug-doc@cisco.com.
Preface Obtaining Technical Assistance Reporting Security Problems in Cisco Products Cisco is committed to delivering secure products. We test our products internally before we release them, and we strive to correct all vulnerabilities quickly. If you think that you might have identified a vulnerability in a Cisco product, contact PSIRT: Tip • Emergencies — security-alert@cisco.com • Nonemergencies — psirt@cisco.
Preface Obtaining Technical Assistance Cisco Technical Support Website The Cisco Technical Support Website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The website is available 24 hours a day, 365 days a year, at this URL: http://www.cisco.com/techsupport Access to all tools on the Cisco Technical Support Website requires a Cisco.com user ID and password.
Preface Obtaining Technical Assistance For S1 or S2 service requests or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.
Preface Obtaining Additional Publications and Information Obtaining Additional Publications and Information Information about Cisco products, technologies, and network solutions is available from various online and printed sources. • Cisco Marketplace provides a variety of Cisco books, reference guides, and logo merchandise. Visit Cisco Marketplace, the company store, at this URL: http://www.cisco.
Preface Obtaining Additional Publications and Information • World-class networking training is available from Cisco. You can view current offerings at this URL: http://www.cisco.com/en/US/learning/index.
Preface Obtaining Additional Publications and Information Cisco 1721 Router Hardware Installation Guide xxiv 78-13834-02
C H A P T E R 1 Cisco 1721 Router Overview This chapter introduces the Cisco 1721 router, also referred to in this guide as the router, and covers the following topics: • Key Features • Back Panel Ports and LEDs • Front Panel LEDs • Router Memory • Unpacking the Router • Additional Required Equipment Cisco 1721 Router Hardware Installation Guide 78-13834-02 1-1
Chapter 1 Cisco 1721 Router Overview Key Features Key Features The Cisco 1721 router (see Figure 1-1) is a small, modular desktop router that links small- to medium-size remote Ethernet and Fast Ethernet LANs over one to four WAN connections to regional and central offices. Table 1-1 lists the key features of the router.
Chapter 1 Cisco 1721 Router Overview Key Features Table 1-1 Key Features Feature One Fast Ethernet (10/100BASE-TX) port Two Cisco WAN interface card (WIC) slots Description • Operates in full- or half-duplex mode (with manual override available). • Supports autosensing for 10- or 100-Mbps operation. • Supports IEEE 802.1Q VLAN encapsulation. • Supports a combination of any two of the following WICs: ISDN BRI, 56-kbps DSU/CSU, FT1/T1 DSU/CSU, high-speed serial, dual-serial, ADSL, G.
Chapter 1 Cisco 1721 Router Overview Back Panel Ports and LEDs Back Panel Ports and LEDs This section describes the router back panel ports and LEDs, which are shown in Figure 1-2 and described in Table 1-2 and Table 1-3.
Chapter 1 Cisco 1721 Router Overview Front Panel LEDs Table 1-2 Back Panel Connectors (continued) Connector/Slot Label/Color Description WIC slot 0 (WIC0) No label Supports one Cisco WIC. For detailed information, refer to the Cisco WAN Interface Cards Hardware Installation Guide, which comes with every card. WIC slot 1 (WIC1) No label Supports one Cisco WIC. For detailed information, refer to the Cisco WAN Interface Cards Hardware Installation Guide, which comes with every card.
Chapter 1 Cisco 1721 Router Overview Front Panel LEDs Front Panel LEDs WIC0 Table 1-4 WIC1 ETH PWR ACT/CH0 ACT/CH0 ACT OK ACT/CH1 ACT/CH1 COL 65537 Figure 1-3 Front Panel LEDs LED Label Color Description PWR Green On means that DC power is being supplied to the router. OK Green On means that the router has successfully booted up and the software is functional. This LED blinks during the power-on self-test (POST).
Chapter 1 Cisco 1721 Router Overview Router Memory Table 1-4 LED Label Front Panel LEDs (continued) Color Description Green Serial and DSU/CSU cards—Blinks when data is being sent to or received from the port on the card in the WIC1 slot. WIC1 ACT/CH0 ISDN cards—On solid when the first ISDN B channel is up for the card in the WIC1 slot. 2-port serial cards—Blinks when data is being sent to or received from the first port on the 2-port card in the WIC1 slot.
Chapter 1 Cisco 1721 Router Overview Router Memory Types of Memory The Cisco 1721 router has the following types of memory: • Dynamic random-access memory (DRAM)—This is the main storage memory for the router. DRAM is also called working storage. It contains the dynamic configuration information. The Cisco 1721 router stores a working copy of the Cisco IOS software, dynamic configuration information, and routing table information in DRAM.
Chapter 1 Cisco 1721 Router Overview Unpacking the Router Processor board ID VEN0539000D (3033334544), with hardware revision 0000 MPC860P processor: part number 5, mask 2 Bridging software. X.25 software, Version 3.0.0. 1 Ethernet/IEEE 802.3 interface(s) 1 FastEthernet/IEEE 802.3 interface(s) 2 Serial network interface(s) 1 Virtual Private Network (VPN) Modules(s) 32K bytes of non-volatile configuration memory.
Chapter 1 Cisco 1721 Router Overview Additional Required Equipment Table 1-6 Additional Required Equipment Equipment When You Use It Ethernet hub A hub connects pieces of network equipment (including the Cisco 1721 router) to create a network. You can use a 10-, 100-, or 10/100-Mbps hub with the Cisco 1721 router. Ethernet switch A switch connects pieces of network equipment (including the Cisco 1721 router) to create a network.
C H A P T E R 2 Installation This chapter provides procedures for installing the Cisco 1721 router and includes the following sections: • Before Installing the Router • Connecting the Router to Your Local Network • Installing WICs • Connecting Power to the Router • Verifying Your Installation • Optional Installation Steps Before Installing the Router The Cisco 1721 router is shipped ready for desktop mounting.
Chapter 2 Installation Connecting the Router to Your Local Network Warning Read the installation instructions before you connect the system to its power source. Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Caution Do not place anything on top of the router that weighs more than 10 pounds (4.5 kg). Excessive weight on top of the router could damage the chassis.
Chapter 2 Installation Connecting the Router to Your Local Network Follow these steps to connect the router to the local network: Connect one end of the cable to the yellow Ethernet port (labeled 10/100 ETHERNET), as shown in Figure 2-1.
Chapter 2 Installation Installing WICs Installing WICs The Cisco 1721 router supports one or two Cisco WAN interface cards (WICs). Each card has one or two WAN ports. This section describes the general procedure for installing a card in the Cisco 1721 router. Note For details on specific WICs, how to connect the card to the WAN line, and how to configure the interface with Cisco IOS software, refer to the Cisco WAN Interface Cards Hardware Installation Guide that came with the card(s).
Chapter 2 Installation Installing WICs Caution Do not connect a WAN cable to the card until you have completed the installation procedure. WIC Installation This section describes how to install WICs in the router. Installing the Cards in Correct Sequence The Cisco 1721 router discovers interfaces on WICs installed in the WIC0 slot before it discovers those installed in the WIC1 slot. This can affect your router configuration.
Chapter 2 Installation Installing WICs Installing the Cards Follow these steps to install the card in a Cisco 1721 router: Make sure that the power switch is set to the STANDBY position ( ) and that the power cable is not connected to the power socket on the rear panel. Step 1 Power must be removed from the system prior to installing or removing WICs to avoid damaging them.
Chapter 2 Installation Installing WICs Hold the WIC by the edges on either side of the card front panel, and line up the card edges with the guides inside the card slot, as shown in Figure 2-3.
Chapter 2 Installation Connecting Power to the Router Connecting Power to the Router Read the following warnings before connecting the router to power. Warning The power supply is designed to work with TN power systems. Warning This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120VAC, 15AU.S. (240VAC, 16A international) is used on the phase conductors (all current-carrying conductors).
Chapter 2 Installation Verifying Your Installation Connecting the Power Supply RD MAN UAL CD SEE LP TD Model Cisco 17 AL 65530 Figure 2-4 BEF ORE INST ALLATIO N 21 DSU 56K WIC 0OK CONS OLE FDX 100 LINK 10/10 0 ET HERN ET AUX MOD OK WIC1O K +5, +1 2, -1 2 VD C Power socket Power supply Step 2 Connect one end of the separate power cord to the socket on the power supply. Step 3 Connect the other end of the separate power cord to a power outlet.
Chapter 2 Installation Optional Installation Steps • OK (front panel)—On when the router software is loaded and functional. Blinking means that the router is performing a power-on self-test (POST). • WIC0/WIC1 OK (back panel)—On when a WIC is correctly installed in the corresponding WIC slot. • ETH ACT (front panel)—Blinking when there is network traffic on the local 10/100 Ethernet LAN. • WIC0ACT or WIC1 ACT (front panel)—Varies, depending on the WIC installed.
Chapter 2 Installation Optional Installation Steps To configure the router by using a PC, the PC must have some type of terminal emulation software installed. The software should be configured with the following parameters: 9600 baud, 8 data bits, no parity bits, 1 stop bit. Refer to the Cisco 1700 Router Software Configuration Guide that came with your router for detailed information about configuring the router using Cisco IOS software.
Chapter 2 Installation Optional Installation Steps Connecting a Modem When a modem is connected to the auxiliary port, a remote user can dial into the router and configure it. You can use the blue console cable that came in the accessory kit. Follow these steps to connect a modem to the router, using the console cable: Step 1 Connect the RJ-45 end of the cable to the black AUX port on the back of the router, as shown in Figure 2-6.
Chapter 2 Installation Optional Installation Steps Step 3 Connect the DB-25 end of the adapter to the modem. Wall-Mounting The Cisco 1721 router can be wall-mounted using two number six, 3/4-inch screws and the molded mounting brackets on the bottom of the hub, as shown in Figure 2-7. You must provide the screws. We recommend using pan-head or round-head screws. Figure 2-7 Wall-Mount Brackets—Bottom of Router Front panel of router Mounting bracket Bottom of router Mounting bracket 3.75" (9.
Chapter 2 Installation Optional Installation Steps Step 2 Caution Hang the router on the screws with either the left side or right side mounting brackets so that • The LEDs are visible to the user—Because the LEDs indicate the router operating status, they need to be easily visible. • The power supply does not hang from its cable—If the power supply is not supported, it might disconnect from the cable that connects it to the router.
Chapter 2 Installation Optional Installation Steps Figure 2-8 Assembling Stacking Clip and Fastener H11542 Push plastic fastener through small hole at the end of the stacking clip. After assembling the clip and fastener, follow these steps to to stack the router with another device: Step 1 Place the clip on top of the lower device, as shown in Figure 2-9. Slide the clip forward so that the front tabs slide into the vent slots. Make sure that the rear hooks fit over the edge of the lower device.
Chapter 2 Installation Optional Installation Steps Figure 2-9 Stacking the Router WIC MAN UAL BEFO RE INST ALLA TION CD RD SEE 21 LP TD Model Cisco 17 AL Bottom of router DSU 56K CONS OLE 0OK FDX 100 LINK 10/10 0 ET HERN ET AUX MOD OK WIC1 OK Front tabs 2, -12 VDC Plastic fastener 65531 +5, +1 SPEE 100B D LED aseT X 10Ba seT SOLID BLIN K 1 2 3 4 5 6 7 8 5X 6X 7X Rear hooks 8X Back panel of lower hub MDI MDI-X Rear hooks Step 2 Position the router onto the clips so that
Chapter 2 Installation Optional Installation Steps Unstacking the Router Follow these steps to unstack the router from another device: Press up on the tab over the center of the lower device to release the clip from the vent, as shown in Figure 2-10.
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C H A P T E R 3 Troubleshooting Use the information in this chapter to help isolate problems you might encounter with the Cisco 1721 router or to rule out the router as the source of the problem. This appendix contains the following sections: • Contacting Your Cisco Reseller • Recovering a Lost Password • Problem Solving Contacting Your Cisco Reseller If you cannot locate the source of a problem, contact your local reseller for advice.
Chapter 3 Troubleshooting Recovering a Lost Password Recovering a Lost Password This section describes how to recover a lost enable password and how to enter a new enable secret password. Password recovery consists of the following major processes: • Determining the Configuration Register Value With this process, you determine the configuration of the router, so that you may restore the configuration after the password is recovered.
Chapter 3 Troubleshooting Recovering a Lost Password Step 4 At the user EXEC prompt (Router>), enter the show version command to display the existing configuration register value (shown at the end of this example output): Router> show version Cisco Internetwork Operating System Software IOS (tm) C1700 Software (C1700-K9SY-M), Version 12.2(4)YA EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) TAC Support: http://www.cisco.com/tac Copyright (c) 1986-2002 by cisco Systems, Inc.
Chapter 3 Troubleshooting Recovering a Lost Password Resetting the Router Follow these steps to reset the router: Step 1 Step 2 Do one of the following: • If break is enabled, go to Step 2. • If break is disabled, turn off the router, wait 5 seconds, and turn it on again. Within 60 seconds, press the Break key. The terminal displays the ROM monitor prompt. Go to Step 3. Note Some terminal keyboards have a key labeled Break.
Chapter 3 Troubleshooting Recovering a Lost Password Step 7 Enter the enable command to enter privileged EXEC mode. Configuration changes can be made only in this mode. Router> enable The prompt changes to the privileged EXEC prompt: Router# Step 8 Enter the show startup-config command to display an enable password in the configuration file: Router# show startup-config If you are using an enable password, it will appear in the startup configuration. Write down the password and keep the record secure.
Chapter 3 Troubleshooting Recovering a Lost Password Resetting the Password Follow these steps to reset an enable secret password and restore the configuration of the router: Step 1 Enter the configure terminal command to enter configuration mode: Router# configure terminal Step 2 Enter the enable secret command to reset the enable secret password in the router: Router(config)# enable secret Step 3 Enter the config-register command and the original configuration register value that yo
Chapter 3 Troubleshooting Problem Solving Step 3 Press Ctrl-Z to exit configuration mode: Router(config)# Ctrl-Z Step 4 Reboot the router, and enter the recovered enable password. Problem Solving The key to problem solving is to isolate the problem to a specific subsystem by comparing what the router is doing to what it should be doing.
Chapter 3 Troubleshooting Problem Solving Table 3-1 OK LED Blinking Patterns Number of Blinks Meaning 2 The 860P dual-port random-access memory (DPRAM) has failed. 3 The parameter RAM area of the 860P DPRAM has failed. 4 The 860P system protection control register has a write failure. 5 The router cannot detect the dynamic random-access memory (DRAM). 6 The user programmable machine has a write failure. 9 The router DRAM has failed.
Chapter 3 Troubleshooting Problem Solving Table 3-2 Troubleshooting WICs Symptom Router does not recognize WIC. Possible Cause(s) • Confirm that the Cisco IOS software version installed in the router supports the WIC. The Cisco WAN Interface Cards Hardware Installation Guide lists the software requirements for each card. • Make sure that the WIC is correctly installed in the router. See the “Installing WICs” section in the “Installation” chapter of this guide.
Chapter 3 Troubleshooting Problem Solving Table 3-2 Troubleshooting WICs (continued) Symptom Possible Cause(s) Router recognizes the WIC(s), but the card port(s) do not initialize. Router does not boot properly, or router continuously or intermittently reboots. Router boots, but the console screen is frozen. • Make sure that the WIC is correctly installed in the router. See the “Installing WICs” section in the “Installation” chapter of this guide.
Chapter 3 Troubleshooting Problem Solving Table 3-3 Troubleshooting the Power System Symptom Possible Cause(s) Router shuts down after being on a short time. • Make sure that the area in which the router is installed meets the environmental site requirements in Appendix A, “Technical Specifications,” in this guide. • If the front panel PWR LED is not on, the power supply has failed. The router attempts to boot, but all LEDs remain off. The power supply has failed.
Chapter 3 Troubleshooting Problem Solving • For routers with an ISDN U WIC, use the clear controller command to terminate any active ISDN calls, to reset the ISDN BRI interface, and to reset the ISDN line between the router and the central office switch. Do this for each ISDN port installed in the router: Router# clear controller bri0 Router# clear controller bri1 Table 3-4 lists troubleshooting methods for ISDN-related problems that might occur.
A P P E N D I X A Technical Specifications Table A-1 lists hardware and operating specifications for the Cisco 1721 router. Table A-1 Cisco 1721 Router Specifications Description Specification Console port RJ-45 Auxiliary port RJ-45 Ethernet port RJ-45 Dimensions HxWxD 3.1 x 11.2 x 8.7 in. (7.85 x 28.4 x 22.1 cm) Weight 2.6 lb (1.18 kg) With two WICs 2.9 lb ( 1.32 kg) Power supply External Universal AC/DC switching—Supplies +5V, +12V, and –12V On-board Supplies 3.
Appendix A Technical Specifications Cisco 1721 Router Hardware Installation Guide A-2 78-13834-02
A P P E N D I X B Cabling Specifications This appendix describes cables and cabling guidelines for the Cisco 1721 router and contains the following sections: Note • Ethernet Cables • Ethernet Network Cabling Guidelines • Console Cable and Adapter For information about cables used with Cisco WICs, refer to the Cisco WAN Interface Cards Hardware Installation Guide, which comes with each card.
Appendix B Cabling Specifications Ethernet Network Cabling Guidelines Table B-1 Ethernet Cable Pinouts (continued) RJ-45 Pin1 Signal Direction RJ-45 Pin 3 RX+ <— 3 6 RX– <— 6 1. Pins 4, 5, 7, and 8 are not used for signaling. Ethernet Network Cabling Guidelines Table B-2 describes some guidelines for creating Ethernet networks. Figures might vary, depending on the manufacturer of the network equipment.
Appendix B Cabling Specifications Console Cable and Adapter Console Cable and Adapter A console cable is provided with your router. Use this cable to connect the router to a PC or terminal. The router comes with a DB-9-to-DB-25 adapter that may be used for connecting the router to a modem, using the console cable. Table B-3 describes the wiring for the console port and the console cable. This table also includes pinouts for the DB-9-to-DB-25 adapter.
Appendix B Cabling Specifications Console Cable and Adapter Cisco 1721 Router Hardware Installation Guide B-4 78-13834-02
A P P E N D I X C Installing and Upgrading Memory and Virtual Private Network Modules This chapter tells how to install or upgrade memory and how to install a Virtual Private Memory (VPN) module in your Cisco 1721 router and includes the following sections: • Safety Warnings • Opening the Chassis • Locating Modules • Installing a DIMM • Installing a VPN Module • Closing the Chassis Safety Warnings Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the router.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Opening the Chassis Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Warning Read the installation instructions before you connect the system to its power source.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Opening the Chassis Figure C-1 Removing the Chassis Screws #1 Phillips screwdriver +5 ,+ 12 ,12 OK MO DO K WIC 1 DS U 56 K ON ATI ALL OR E INST CD EF AL B U EM AN SE AU X TD 65533 10 /10 0E T RD LP AL H K 0 X FD 21 M o Cis del co 17 WIC 10 LIN CO NS OL E 0O K Rear panel Top of router Step 4 Turn the router back to its original position (top up).
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Locating Modules Locating Modules Figure C-2 shows where to find slots for a dual in-line memory module (DIMM) and a VPN module on the router motherboard.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Installing a DIMM Installing a DIMM You can install a DIMM to increase the amount of dynamic random-access memory (DRAM) in the router. Follow these steps to install a DIMM on the router motherboard: Step 1 Locate the DIMM slot on the motherboard. Step 2 Remove any existing DIMM by pulling the DIMM slot guides (shown in Figure C-3) away from the DIMM and down toward the motherboard.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Installing a VPN Module Installing a VPN Module Follow the steps in this section to install a VPN module. Step 1 Figure C-4 Installing the Standoffs on the VPN Module Standoff Screw Standoff is installed into the hole just behind the large connector. 46084 Screw Install the two standoffs on the module, as shown in Figure C-4.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Installing a VPN Module Step 2 VPN Module Location 65823 Figure C-5 Locate the VPN module socket, and insert the VPN module, as shown in Figure C-5. Step 3 Seating the VPN Module 65824 Figure C-6 Pushing down as indicated in Figure C-6, plug the VPN module into the socket.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Installing a VPN Module Step 4 Turn the motherboard over, and attach the standoffs to it by using the screws provided, as shown in Figure C-7.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Closing the Chassis Closing the Chassis After installing memory or a VPN module on the motherboard, close the chassis by following these steps: Step 1 If you disconnected the fan from the motherboard as described in the “Opening the Chassis” section, reconnect the fan cable to the connector labeled FAN on the motherboard.
Appendix C Installing and Upgrading Memory and Virtual Private Network Modules Closing the Chassis Closing the Chassis 12616 Figure C-8 Step 4 Replace the screws that you removed when you opened the chassis. (See Figure C-1.
A P P E N D I X D Ordering and Configuring an ISDN Line This appendix tells how to order and configure an Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) line for use with a Cisco 1721 router with an ISDN BRI WIC installed.
Appendix D Ordering and Configuring an ISDN Line ISDN BRI Switch Types • If the router is going to be the only device attached to the ISDN BRI line, ask for point-to-point service and a data-only line. • If you will be connecting another ISDN device (such as an ISDN telephone) to the ISDN BRI line, ask for point-to-multipoint service (subaddressing is required) and a voice-and-data line. ISDN BRI Switch Types ISDN BRI supports a variety of service provider switches.
Appendix D Ordering and Configuring an ISDN Line ISDN BRI Provisioning by Switch Type Table D-1 ISDN Switch Types Supported by the Cisco 1721 Router (continued) Switch Type Keyword New Zealand Net3 switches basic-nznet3 ISDN BRI Provisioning by Switch Type The ISDN BRI line is configured (or provisioned) for different types of services by the ISDN BRI service provider. The person ordering the ISDN line must also order the provisioning described in this section.
Appendix D Ordering and Configuring an ISDN Line ISDN BRI Provisioning by Switch Type Table D-2 Provisioning Required for ISDN Switch Types (continued) Switch Type Provisioning 5ESS Custom BRI For voice and data (Use these values only if you have an ISDN telephone connected.) Two B channels for voice or data. Multipoint. Terminal type = D. Two directory numbers assigned by service provider. Two service profile identifiers (SPIDs) required, assigned by service provider. MTERM = 2.
Appendix D Ordering and Configuring an ISDN Line Defining ISDN Service Profile Identifiers Table D-2 Provisioning Required for ISDN Switch Types (continued) Switch Type Provisioning DMS-100 BRI Two B channels for voice and data. Two directory numbers assigned by service provider. Two SPIDs required; assigned by service provider. Functional signaling. Dynamic terminal endpoint identifier (TEI) assignment. Maximum number of keys = 64. Release key = no, or key number = no. Ringing indicator = no.
Appendix D Ordering and Configuring an ISDN Line ISDN Configuration Options When the router connects to the service provider’s central office ISDN switch, it sends the SPIDs to the switch. If the router is not configured with the correct SPIDs, it cannot place or receive calls.
Appendix D Ordering and Configuring an ISDN Line ISDN Configuration Options Dial-on-Demand Routing To place calls on the ISDN interface, you must configure it with dial-on-demand routing (DDR). See the chapter “Configuring DDR” in the Wide-Area Networking Configuration Guide for detailed information about DDR. Bandwidth on Demand and Dial Backup See the chapter “Configuring DDR” in the Wide-Area Networking Configuration Guide for detailed information about bandwidth on demand and dial backup.
Appendix D Ordering and Configuring an ISDN Line ISDN Configuration Options Cisco 1721 Router Hardware Installation Guide D-8 78-13834-02
INDEX description 1-5 Numerics illustration 1-4 100 LED 1-5 break, sending to router 3-4 BRI See ISDN BRI A accessory kit 1-9 adapter, included 1-9 additional required equipment 1-9 ANI See calling-line identification Automatic Number Identification See calling-line identification auxiliary port connecting 2-12 description 1-3, 1-4 illustration 1-4 C cables console B-3 Ethernet pinout B-1 included with router 1-9 requirements for Ethernet networks B-2 serial 1-10 caller ID See calling-line identificat
Index commands copy command 3-5, 3-6 config-register 3-6 configure terminal 3-6 copy 3-5, 3-6 enable 3-5 D DIMM enable secret 3-6 installing C-5 isdn spid D-6 locating on router C-4 isdn switch-type D-2 documentation, related xii reset 3-4 DRAM 1-8 show startup-config 3-5 show version 1-8, 3-3 config-register command 3-6 configuration register E enable command 3-5 determining value 3-2 to 3-3 enable password, recovering 3-2 resetting 3-6 to 3-7 enable secret command 3-6 configure terminal
Index ISDN F See ISDN BRI FDX LED 1-5 ISDN BRI Flash memory 1-8 configuring front panel options D-6 illustration 1-2 requirements D-1 LEDs line configuration requirements D-1 description 1-6 to 1-7 point-to-multipoint service D-2 illustration 1-6 point-to-point service D-2 provisioning D-3 to D-5 SPID H configuring D-6 definition D-5 hub switch types D-2 connecting to 2-3 description 1-10 isdn spid command D-6 isdn switch-type command D-2 I installing DIMM C-5 L LEDs equipment you p
Index description 1-7 P DIMM installing C-5 password, recovering 3-2 locating on router C-4 PC displaying amounts 1-8 connecting to router 2-10 DRAM 1-8 terminal emulation settings 2-11 pinouts Flash 1-8 NVRAM 1-8 console cable B-3 show version command 1-8 Ethernet cable B-1 power socket modem connecting to router 2-12 connecting 2-8 description 1-10 illustration 1-4 support 1-3 specifications A-1 MOD OK LED 1-5 problem solving 3-7 PWR LED 1-6 N R note, definition xiii NVRAM 1-8 rese
Index See SPID V show startup-config command 3-5 show version command 3-3 VPN module specifications, operating A-1 installing C-6 to C-8 SPID location on router C-7 configuring D-6 definition D-5 stacking router with other devices 2-14 switch connecting to 2-3 description 1-10 W wall-mounting 2-13 WAN interface cards description 1-10 installing 2-6 router slots 1-3 T slot specifications A-1 terminal emulation, settings 2-11 supported cards 1-3 text conventions xiii troubleshooting 3-8 to 3-1
Index Cisco 1721 Router Hardware Installation Guide IN-6 78-13834-02
