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Cisco 7204 Installation and Configuration Guide

OL-5101-02

Chapter 2 Preparing for Installation

Site Log

Содержание 7204 - VXR Router

Страница 1: ... Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 526 4100 Cisco 7204 Installation and Configuration Guide Customer Order Number Text Part Number OL 5101 02 ...

Страница 2: ...s Turn the television or radio antenna until the interference stops Move the equipment to one side or the other of the television or radio Move the equipment farther away from the television or radio Plug the equipment into an outlet that is on a different circuit from the television or radio That is make certain the equipment and the television or radio are on circuits controlled by different cir...

Страница 3: ...site xv Submitting a Service Request xv Definitions of Service Request Severity xv Obtaining Additional Publications and Information xvi C H A P T E R 1 Product Overview 1 1 Physical Description 1 2 System Specifications 1 5 Software Requirements 1 6 Field Replaceable Units 1 6 Network Processing Engine 1 6 Input Output Controller 1 11 Port Adapters and Service Adapters 1 17 Power Supplies 1 18 Fa...

Страница 4: ...onment 2 8 Preventive Site Configuration Maintaining Normal Operation 2 9 General Precautions 2 9 Power Considerations 2 10 Tools for Installation 2 10 Initial Configuration Information 2 11 Cisco 7204 Installation Checklist 2 11 Checking the Shipping Container Contents 2 13 Site Log 2 14 C H A P T E R 3 Installing the Cisco 7204 3 1 Rack Mounting the Cisco 7204 3 1 Installing the Brackets on the ...

Страница 5: ...s 4 4 Configuring Interfaces 4 7 Configuring the Cisco 7204 Using Configuration Mode 4 10 Saving Your Settings to NVRAM 4 10 Checking Your Settings and Reviewing Your Configuration Changes 4 11 Implementing Other Configuration Tasks 4 11 What Do I Do Now 4 11 C H A P T E R 5 Troubleshooting the Installation 5 1 Troubleshooting Overview 5 2 Problem Solving with Subsystems 5 3 Identifying Startup Pr...

Страница 6: ...f the Password Recovery Procedure 6 14 A P P E N D I X A Industry Standard Wiring Plans A 1 A P P E N D I X B Configuration Register Information B 5 Configuration Bit Meanings B 5 Bits 0 3 B 6 Bit 6 B 7 Bit 7 B 7 Bit 8 B 8 Bit 10 and Bit 14 B 8 Bit 11 and Bit 12 B 8 Bit 13 B 8 Bit 15 B 9 Displaying the Configuration Register While Running Cisco IOS B 9 Displaying the Configuration Register While R...

Страница 7: ... After completing the installation and basic configuration procedures covered in this guide you will then use the appropriate companion publications to more completely configure your system For comprehensive descriptions and examples of software configuration commands and the procedures for implementing them refer to the related software configuration and reference documentation listed in the sect...

Страница 8: ... grouped in braces and separated by vertical bars Chapter Title Description Chapter 1 Product Overview Chapter 1 describes the physical properties of the Cisco 7204 and provides a functional overview of the router Chapter 2 Preparing for Installation Chapter 2 is a preparatory chapter that describes safety considerations tools required an overview of the installation and procedures you should perf...

Страница 9: ... in this publication refer to the translated safety warnings that accompanied this device Note SAVE THESE INSTRUCTIONS Note This documentation is to be used in conjunction with the specific product installation guide that shipped with the product Please refer to the Installation Guide Configuration Guide or other enclosed additional documentation for further details Waarschuwing BELANGRIJKE VEILIG...

Страница 10: ...r éviter les accidents Pour prendre connaissance des traductions d avertissements figurant dans cette publication consultez les consignes de sécurité traduites qui accompagnent cet appareil Remarque CONSERVEZ CES INFORMATIONS Remarque Cette documentation doit être utilisée avec le guide spécifique d installation du produit qui accompagne ce dernier Veuillez vous reporter au Guide d installation au...

Страница 11: ...e installasjonsveiledningen som fulgte med produktet Vennligst se installasjonsveiledningen konfigureringsveiledningen eller annen vedlagt tilleggsdokumentasjon for detaljer Aviso INSTRUÇÕES IMPORTANTES DE SEGURANÇA Este símbolo de aviso significa perigo O utilizador encontra se numa situação que poderá ser causadora de lesões corporais Antes de iniciar a utilização de qualquer equipamento tenha e...

Страница 12: ...om farorna med elkretsar och känna till vanliga förfaranden för att förebygga olyckor Se översättningarna av de varningsmeddelanden som finns i denna publikation och se de översatta säkerhetsvarningarna som medföljer denna anordning OBS SPARA DESSA ANVISNINGAR OBS Denna dokumentation ska användas i samband med den specifika produktinstallationshandbok som medföljde produkten Se installationshandbo...

Страница 13: ...uced instruction set computing SIMM Single in line memory module SNMP Simple Network Management Protocol SRAM Static random access memory TFTP Trivial File Transfer Protocol Related Documentation Your Cisco 7204 router and the Cisco IOS software running on it contain extensive features and functionality which are documented in the following resources Cisco 7200 Series Routers Documentation Roadmap...

Страница 14: ...ions for ordering documentation at this URL http www cisco com univercd cc td doc es_inpck pdi htm You can order Cisco documentation in these ways Registered Cisco com users Cisco direct customers can order Cisco product documentation from the Ordering tool http www cisco com en US partner ordering index shtml Nonregistered Cisco com users can order documentation through a local account representa...

Страница 15: ... S4 service requests S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information After you describe your situation the TAC Service Request Tool automatically provides recommended solutions If your issue is not resolved using the recommended resources your service request will be assigned to a Cisco TAC engineer The TAC Service Reque...

Страница 16: ...working training and certification titles Both new and experienced users will benefit from these publications For current Cisco Press titles and other information go to Cisco Press at this URL http www ciscopress com Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and networking investments Each quarter Packet delivers coverage of the latest industry trends tec...

Страница 17: ... You can place the port adapters or service adapters in any of the four available slots There are bays for up to two AC input or DC input power supplies The Cisco 7204 will operate with one power supply While a second power supply is not required it allows load sharing and increased system availability Note The Cisco 7204 does not support a mixture of AC and DC input power The Cisco 7204 provides ...

Страница 18: ...led in the Cisco 7204 are of the same type as those installed on the second generation Versatile Interface Processors VIP2s in the Cisco 7500 series routers in Cisco 7000 series routers using the 7000 Series Route Switch Processor RSP7000 and 7000 series Chassis Interface RSP7000CI and in the Cisco uBR7200 series routers The port adapters installed in the Cisco 7204 support OIR For an explanation ...

Страница 19: ...ors or LEDs There is a handle for removing and installing the network processing engine and two captive installation screws for securing it to the chassis H7399 2 EN AB LE D 0 2 1 3 LI NK 0 1 2 3 EN TD TC RD RC LB CD TD TC RD RC LB CD TD TC RD RC LB CD TD TC RD RC LB CD E N A B LE D M II L IN K R J4 5 FAST ETHERNET 0 0 4 1 3 Port adapter slot 3 Port adapter slot 1 Port adapter slot 4 Port adapter ...

Страница 20: ...across the internal components make sure blank port adapters are installed in unoccupied port adapter slots and power supply filler plates are installed in unoccupied power supply bays The I O controller port adapters power supplies and network processing engine slide into their respective chassis slots and connect directly to the router s midplane there are no internal cables to connect The midpl...

Страница 21: ...al units AC input voltage rating 100 240 VAC3 wide input with power factor correction 3 VAC volts alternating current AC input current rating 5A4 at 100 240 VAC with the chassis fully configured 4 A amperes AC input frequency rating 50 60 Hz5 5 Hz hertz AC input cable 18 AWG6 three wire cable with a three lead IEC 320 receptacle on the power supply end and a country dependent plug on the power sou...

Страница 22: ...rt adapters and service adapters Power supplies Fan tray Chassis PCMCIA Flash Disks and Flash memory cards Rack mount and cable management kit The following sections provide brief overviews of each FRU Instructions for removing and replacing FRUs are contained in separate documents For example if you need to replace the I O controller in your Cisco 7204 router refer to the Input Output Controller ...

Страница 23: ... network processing engine DRAM for storing routing tables protocols network accounting applications packets of information in preparation for process switching and packet buffering for SRAM overflow The standard configuration is 32 megabytes MB with up to 128 MB available through single in line memory module SIMM upgrades Packet SRAM for storing packets of information in preparation for fast swit...

Страница 24: ...ure sensor Temperature sensor Handle Midplane connectors U12 Bank 1 DRAM SIMMs U4 U25 U18 R4700 microprocessor Captive installation screw Bank 0 NETWORK PROCESSING ENGINE 100 Handle H5999 System controller Temperature sensor Temperature sensor Midplane connectors U12 Bank 1 DRAM SIMMs U4 U25 U18 R4700 microprocessor 1 MB SRAM U700 through U703 U800 through U803 Captive installation screw Bank 0 NE...

Страница 25: ...on maximum DRAM required Bank 0 U18 and U25 or U11 and U251 Bank 1 U4 and U12 or U42 and U522 1 The sockets for bank 0 on the NPE 100 and the NPE 150 are numbered U18 and U25 The same sockets on the NPE 200 are numbered U11 and U25 2 The sockets for bank 1 on the NPE 100 and the NPE 150 are numbered U4 and U12 The same sockets on the NPE 200 are numbered U42 and U52 SRAM3 NPE 150 NPE 200 3 The NPE...

Страница 26: ...pyright c 1986 1996 by cisco Systems Inc Compiled Sun 04 Aug 96 06 00 by rmontino Image text base 0x60010890 data base 0x605F0000 display text omitted cisco 7204 NPE 150 processor with 12288K 4096K bytes of memory R4700 processor Implementation 33 Revision 1 0 Level 2 Cache Last reset from power on Bridging software display text omitted Table 1 3 DRAM SIMM Configurations NPE 100 NPE 150 and NPE 20...

Страница 27: ...t see Figure 1 7 or an MII port and an RJ 45 port see Figure 1 8 that is configurable for use at 100 megabits per second Mbps full duplex or half duplex half duplex is the default The I O controller without the Fast Ethernet port is shown in Figure 1 9 Note When you use the I O controller that is equipped with an MII port and an RJ 45 port only one port can be configured for use at a time Although...

Страница 28: ...rt Captive installation screw LEDs and CPU reset button Auxiliary port P C M C IA E JE C T S LO T 0 S LO T 1 FE M II FAST ETHERNET INPUT OUTPUT CONTROLLER F E E N A B LE F E LIN K C P U R E S E T IO P W R O K E N A B LE D H11293 A U X C O N S O LE Midplane connectors Temperature sensor Flash SIMM U99 NVRAM U41 Temperature sensor Boot ROM U20 PC Card slots Console port Captive installation screw E ...

Страница 29: ...entifying Startup Problems section on page 5 3 in Chapter 5 Troubleshooting the Installation A CPU reset button is located next to the IO power OK LED or the auxiliary port on the I O controller faceplate The CPU reset button resets the entire system Caution To prevent system errors and problems use the CPU reset button only at the direction of your service representative H7400 A U X C O N S O LE ...

Страница 30: ...ler LEDs and CPU Reset Button with Fast Ethernet Port MII and RJ 45 Ports H6523 F E E N A B L E S L O T 1 S L O T 0 F E L I N K C P U R E S E T I O P O W E R O K FAST ETHERNET INPUT OUTPUT CONTROLLER E N A B LE D ENABLED H11294 S L O T 1 S L O T 0 FAST ETHERNET INPUT OUTPUT CONTROLLER R J 4 5 C PU R ESET M II E N R J45 E N R J45 LIN K IO P W R O K M II E N R J45 E N R J45 LIN K IO P W R O K C P U ...

Страница 31: ... been enabled and remains on during normal operation of the router FE Link Indicates that the Fast Ethernet port on the I O controller has established a valid link with the network This LED remains off during normal operation of the router unless there is an incoming carrier signal MII EN Indicates that the Fast Ethernet port s MII ports is initialized and enabled by the system and configured for ...

Страница 32: ...stem software will not display output for the show diag 0 command Note Refer to the section Port Adapter Slot and Logical Interface Numbering section on page 1 23 for information about port adapter slot numbering and logical interface numbering for the Cisco 7204 router The following sample output from the show diag 0 command is from a Cisco 7204 I O controller with the Fast Ethernet port that is ...

Страница 33: ...oller is half duplex Use the full duplex command to change the Fast Ethernet port s transmission mode and the show interfaces command to verify the change as follows Router config t Enter configuration commands one per line End with CNTL Z Router config int fastethernet 0 0 Router config if full duplex Router config if no shutdown Router config if exit Router config LINEPROTO 5 UPDOWN Line protoco...

Страница 34: ...the Cisco 7204 In dual power supply configurations both power supplies must be of the same type two AC input power supplies or two DC input power supplies Note Detailed instructions for handling and replacing the Cisco 7204 power supplies are contained in the configuration notes 280 Watt AC Input Power Supply Replacement Instructions and 280 Watt DC Input Power Supply Replacement Instructions This...

Страница 35: ... supply system power specifications including input voltage and operating frequency ranges Note Each AC input power supply operating at 120 VAC requires a minimum of 5A service We recommend powering the Cisco 7204 from a 15A receptacle at the power source Note Each DC input power supply operating at 48 VDC in North America requires a minimum of 13A service Each DC input power supply operating at 6...

Страница 36: ...wer switch The power switch turns the power supply on and starts the system For a description of power supply shutdown conditions and thresholds refer to the Environmental Monitoring and Reporting Functions section on page 1 26 Fan Tray The fan tray shown in Figure 1 15 consists of three fans that are enclosed in a metal case The fan tray is located in the subchassis and receives 12 VDC through a ...

Страница 37: ...en the internal air temperature approaches a specified threshold If the internal temperature exceeds the specified threshold the system environmental monitor shuts down all internal power to prevent equipment damage from excessive heat Chassis The Cisco 7204 chassis shown in Figure 1 17 has four slots for the port adapters one slot for the I O controller and one bay for the subchassis To replace t...

Страница 38: ...ver the network and then add the new image to Flash memory or replace existing files You can also transfer images between Flash Disks or cards and the onboard Flash memory SIMM You can then boot the router either manually or automatically from any of the stored images Flash memory can also function as a TFTP server to allow other routers to boot remotely from stored images or copy them into their ...

Страница 39: ... the environmental monitoring and reporting functions and online insertion and removal OIR These descriptions will help you become familiar with the capabilities of the Cisco 7204 router Port Adapter Slot and Logical Interface Numbering In the Cisco 7204 the port adapter slot number is the chassis slot in which a port or service adapter is installed while the logical interface number is the physic...

Страница 40: ...n including the physical port adapter number for each port adapter in a Cisco 7204 In the following example most of the status information for each interface is omitted Router sh int FastEthernet0 0 is administratively up line protocol is up Hardware is DEC21140 address is 0000 0000 0000 bia 0000 0000 0000 Internet address is 1 1 1 3 MTU 1500 bytes BW 100000 Kbit DLY 100 usec rely 255 255 load 1 2...

Страница 41: ... than one device at the same time Note Storing the MAC addresses for every slot in one central location means the addresses stay with the memory device on which they are stored Online Insertion and Removal All port and service adapters in the Cisco 7204 support online insertion and removal OIR This function allows you to install and replace port and service adapters while the router is operating y...

Страница 42: ... voltages and currents Each power supply monitors its own voltage and temperature and shuts itself down if it detects a critical condition within the power supply If conditions reach shutdown thresholds the system shuts down to avoid equipment damage from excessive heat The reporting functions periodically log the values of measured parameters so that you can retrieve them for analysis later and t...

Страница 43: ...rent or temperature condition and shut itself down All DC power will remain disabled until you toggle the power switch If the air temperature exceeds a defined threshold the system controller displays warning messages on the console terminal and if the temperature exceeds the shutdown threshold it shuts down the system The system stores the present parameter measurements for both temperature and D...

Страница 44: ...the chassis and is not drawn into the inlet vent of other device The show environment command display reports the current environmental status of the system The report displays parameters that are out of the normal values No parameters are displayed if the system status is normal The example that follows shows the display for a system in which all monitored parameters are within normal range Route...

Страница 45: ...n installed NPE 100 or NPE 200 Router show env table Sample Point LowCritical LowWarning HighWarning HighCritical chassis inlet 40C 104F 50C 122F chassis outlet 1 43C 109F 53C 127F chassis outlet 2 75C 167F 75C 167F chassis outlet 3 50C 122F 60C 140F 3 45 V 3 26 3 34 3 55 3 63 5 15 V 4 86 4 99 5 31 5 43 12 15 V 11 39 11 67 12 62 12 91 11 95 V 9 52 10 73 13 16 14 38 System shutdown for chassis outl...

Страница 46: ...ges on the console terminal and if the temperature exceeds the shut down threshold it shuts down the system If the system does shutdown because the temperature exceeded the shutdown threshold the system will display the following message on the console screen and in the environment display when the system restarts Queued messages ENVM 1 SHUTDOWN Environmental Monitor initiated shutdown For complet...

Страница 47: ...llowing guidelines will help to ensure your safety and protect the equipment This list does not cover all potentially hazardous situations so be alert The installation of your Cisco 7204 should be in compliance with national and local electrical codes In the United States National Fire Protection Association NFPA 70 United States National Electrical Code In Canada Canadian Electrical Code part I C...

Страница 48: ...weighs approximately 50 pounds The chassis is not intended to be moved frequently Before you install the router ensure that your site is properly prepared so you can avoid having to move the chassis later to accommodate power sources and network connections Whenever you lift the chassis or any heavy object follow these guidelines see Figure 2 1 Always disconnect all external cables before lifting ...

Страница 49: ... jack is specifically designed for wet locations Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface Use caution when installing or modifying telephone lines Preventing Electrostatic Discharge Damage Electrostatic discharge ESD damage which occurs when electronic cards or components are improperly handled can result in compl...

Страница 50: ...nce plan your site configuration and prepare your site before installation After installation make sure the site maintains an ambient temperature of 32 F through 104 F 0 C through 40 C and keep the area around the chassis as free from dust as is practical The following sections address the site environment requirements for the Cisco 7204 AC and DC Power The AC input power supply uses a power facto...

Страница 51: ...our vicinity The electromagnetic pulse caused by lightning or other high energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic devices If you have had problems of this sort in the past you may want to consult experts in electrical surge suppression and shielding Distance Limitations and Interface Specifications The size of your networks and the distances...

Страница 52: ...ks To easily access FRUs while the router is installed in a rack make certain you have access to the front and rear of the router Before using a particular rack check for obstructions such as a power strip that could impair rack mount installation If a power strip does impair a rear rack mount installation remove the power strip before installing the Cisco 7204 in the rack then replace it after th...

Страница 53: ...t the weight and dimensions of the chassis shows the chassis footprint which you will need if you are designing a customized shelf We recommend that you use the rack mount kit designed for the Cisco 7204 Allow sufficient clearance around the rack for maintenance If the rack is mobile you can push it back near a wall or cabinet for normal operation and pull it out for maintenance installing or movi...

Страница 54: ... to the port adapters or require you to disconnect cables unnecessarily to perform equipment maintenance or upgrades If you are planning to install the cable management brackets on a Cisco 7204 that you are rack mounting from the front you must install the cable management brackets and the rack mount brackets before you install the chassis in the rack Provide an adequate chassis ground earth conne...

Страница 55: ...tes reports on any occurrences If warning messages are displayed take immediate action to identify the cause and correct the problem We recommend keeping the Cisco 7204 off the floor and out of any area that tends to collect dust Follow ESD prevention procedures to avoid damage to equipment Damage from static discharge can cause immediate or intermittent equipment failure Ensure that the network p...

Страница 56: ... a Chassis Ground Connection for the Router Chassis section on page 3 11 in Chapter 3 Installing the Cisco 7204 Tools for Installation Your Cisco 7204 chassis is fully assembled at the factory no assembly is required However you will need the following tools and equipment to install the chassis and the rack mount and cable management kit Number 2 Phillips screwdriver 3 16 inch flat blade screwdriv...

Страница 57: ...nformation you are likely to need depending on your configuration Host name for the router Passwords to prevent unauthorized privileged level access to the EXEC command interpreter and for individual virtual terminal lines Protocols you plan to route Bridging configuration if you plan to use bridging and if so on which interfaces Internet Protocol IP addresses and subnet masks if you are routing I...

Страница 58: ...nted in rack optional Cable management brackets installed optional but recommended AC power cable s connected to AC source s and router retention clip secured DC power cable s connected to DC source s and router Captive installation screws on I O controller and network processing engine checked Network interface cables and devices connected ASCII terminal attached to console port Console port set ...

Страница 59: ...k the contents of the accessories box against the Installation Checklist and the packing slip to verify that you received all listed equipment which should include the following One modular power cable for each AC input power supply One rack mount and cable management kit four brackets and 14 mounting screws Optional equipment that you ordered such as network interface cables transceivers or speci...

Страница 60: ...and replaced Subchassis removed and replaced Fan tray removed and replaced Power supply removed or replaced Chassis replaced Configuration changed port or service adapters moved Software upgraded Corrective maintenance procedures performed Intermittent problems Related comments Table 2 4 shows a sample site log page Make copies of the sample or design your own site log to meet the needs of your si...

Страница 61: ...2 15 Cisco 7204 Installation and Configuration Guide OL 5101 02 Chapter 2 Preparing for Installation Site Log Table 2 4 Site Log Example Date Description of Action Performed or Symptom Observed Initials ...

Страница 62: ...2 16 Cisco 7204 Installation and Configuration Guide OL 5101 02 Chapter 2 Preparing for Installation Site Log ...

Страница 63: ...ment shelf or using mounting hardware other than that supplied with the chassis review the guidelines in the Equipment Racks section on page 2 6 in the chapter Preparing for Installation then proceed to the General Installation section on page 3 9 If you do not plan to install your Cisco 7204 in an equipment rack proceed to the section General Installation section on page 3 9 Rack Mounting the Cis...

Страница 64: ...s If you want the port adapter end the front of the chassis recessed in the rack install the rack mount brackets at the front or rear of the chassis in the orientation shown in Figure 3 2 If you want the front of the chassis protruding out of the rack install the rack mount brackets at the front or rear of the chassis in the orientation shown in Figure 3 3 18 31 in 46 48 cm hole center to center 1...

Страница 65: ...X 0 1 2 3 4 TX R X TX R X TX R X TX R X TX H9156 Rack mount bracket M II E N R J4 5 E N R J4 5 LI N K 1O P W R O K RJ 4 5 CP U RE SE T FAST ETHERNET INPUT OUTPUT CONTROLLER E N A B L E D P C M C IA E JE C T S L O T 0 S L O T 1 F E M II H9157 E N A B LE D M II L IN K R J4 5 FAST ETHERNET 0 0 2 4 1 3 E N 0 7 1 2 3 4 5 6 SERIAL EIA TIA 232 ETHERNET 10BFL E N R X 0 1 2 3 4 T X R X T X R X T X R X T X ...

Страница 66: ...rack mount brackets and four screws secure both sets of brackets to the chassis Refer to Figure 3 4 In the second configuration two screws secure each rack mount bracket to the chassis and two additional screws secure each cable management bracket to a rack mount bracket Refer to Figure 3 5 Figure 3 4 Rack Mounting the Chassis in a Telco Type Rack with Installed Cable Management Brackets Front Ins...

Страница 67: ...kets you must install the cable management brackets when you install the rack mount brackets on the chassis If you are rack mounting the chassis from the rear you may install the rack mount and cable management brackets separately however both sets of brackets must be installed on the chassis before the chassis is installed in the rack The parts and tools required for installing the rack mount and...

Страница 68: ...he first rack mount bracket to the threaded holes in the right side of the chassis as shown in Figure 3 7 Figure 3 6 Installing the Rack Mount Brackets on the Front of the Chassis so the Front Protrudes Out of the Rack Figure 3 7 Installing the Rack Mount Brackets on the Front of the Chassis so the Front is Recessed in the Rack EN A B LE D M II LI N K R J4 5 FAST ETHERNET 0 0 2 4 1 3 EN 0 7 1 2 3 ...

Страница 69: ...r installing the rack mount and cable management brackets on a Cisco 7204 for a front rack mount configuration Installing Brackets on the Rear of the Chassis To install the rack mount and cable management brackets on a Cisco 7204 for a rear rack mount configuration complete the following steps Step 1 Locate the threaded holes in the rear sides of the chassis Step 2 Align the first rack mount brack...

Страница 70: ...ollowing section Installing the Chassis in the Rack Warning To prevent injury review the safety precautions in Chapter 2 Preparing for Installation before installing the router in a rack Installing the Chassis in the Rack After installing the brackets on the chassis mount the router by securing the rack mount brackets to two posts or mounting strips in the rack using the six slotted screws provide...

Страница 71: ...alled at the front or rear of the chassis meet the mounting strips or posts on both sides of the equipment rack Step 5 While keeping the brackets flush against the posts or mounting strips position the router so the holes in the brackets are aligned with those in the mounting strips Step 6 Insert all six 10 32 x 3 8 slotted screws three on each side through the brackets and into the mounting strip...

Страница 72: ...ssing engine the I O controller and each power supply are tightened and the port adapter levers are in the locked position Warning To prevent damage to the chassis or personal injury never attempt to lift or tilt the Cisco 7204 using the port adapter handles or the I O controller handle they are not designed to support the weight of the router Always have someone help you when installing the Cisco...

Страница 73: ...e cables service loop in place tighten the cable tie down around the interface cables until they are secured against the cable management bracket Refer to Figure 3 10 Figure 3 10 Securing Interface Cables to the Cable Management Brackets Step 4 Repeat Step 1 through Step 3 for any other port adapter interface cables installed in the router This completes the procedure for securing port adapter int...

Страница 74: ...llips head machine screws with locking washers M5 metric 0 031 inch 0 8 mm pitch 0 315 inch 8 mm length These screws are not available from Cisco Systems they are available from any commercial hardware vendor 1 grounding wire 6 AWG 0 162 inch 4 115 mm diameter with approximately 0 108 inch 2 743 mm insulation for a total wire diameter of approximately 0 27 inches 6 858 mm The wire s length is depe...

Страница 75: ...1 Step 7 Connect the opposite end of the grounding wire to the appropriate grounding point at your site to ensure an adequate chassis ground This completes the procedure for providing a chassis ground connection Connecting Port Adapter Cables The instructions for connecting the cables for each port adapter installed in the Cisco 7204 are contained in the respective configuration note for each port...

Страница 76: ...t modems are asynchronous devices Before connecting a terminal to the console port configure the terminal to match the router console port as follows 9600 baud 8 data bits no parity 2 stop bits 9600 8N2 You need an EIA TIA 232 DCE console cable to connect the terminal to the console port After you establish normal router operation you can disconnect the terminal You must supply your own interface ...

Страница 77: ...e when the system is running The Request To Send RTS signal tracks the state of the Clear to Send CTS input The console port requires a straight through EIA TIA 232 cable Modem Console terminal H6539 M II E N R J 4 5 E N R J 4 5 L IN K 1 O P W R O K R J 4 5 C P U R E S E T FAST ETHERNET INPUT OUTPUT CONTROLLER E N A B L E D P C M C I A E J E C T S L O T 0 S L O T 1 F E M I I Auxiliary port Console...

Страница 78: ...able product in May 1998 The following sections explain Fast Ethernet MII and RJ 45 connection equipment Fast Ethernet MII Connection Equipment The MII port on the I O controller is a 40 pin D shell type connector that is configurable for 100 megabits per second Mbps full duplex or half duplex half duplex is the default The MII port supports IEEE 802 3u interfaces compliant with the 100BASE X and ...

Страница 79: ...ou fasten to the jackscrews on the MII connector and tighten with your fingers Use the jackscrews to secure your MII cable to the MII port Figure 3 15 MII Port Table 3 2 lists the pinouts and signals for the I O controller MII port M II E N R J45 E N R J45 LIN K 1O P W R O K R J 4 5 C P U R E S E T FAST ETHERNET INPUT OUTPUT CONTROLLER E N A B L E D P C M C I A E J E C T S L O T 0 S L O T 1 F E M ...

Страница 80: ...le commercially Figure 3 16 shows the RJ 45 connector Table 3 4 lists the pinouts and signals for the RJ 45 port Figure 3 16 RJ 45 Port and Plug Warning To avoid electric shock do not connect safety extra low voltage SELV circuits to telephone network voltage TNV circuits LAN ports contain SELV circuits and WAN ports contain TNV circuits Some LAN and WAN ports both use RJ 45 connectors Use caution...

Страница 81: ...wn in Figure 3 17 and Figure 3 18 for straight through and crossover twisted pair cable connections Figure 3 17 Straight Through Cable Pinout I O Controller RJ 45 Connection to an End Station or DTE Figure 3 18 Crossover Cable Pinout I O Controller RJ 45 Connection to an End Station or DTE To identify the RJ 45 cable type hold the two ends of the cable next to each other so you can see the colored...

Страница 82: ...r handling and replacing the Cisco 7204 power supplies are contained in the configuration notes 280 Watt AC Input Power Supply Replacement Instructions and 280 Watt DC Input Power Supply Replacement Instructions These documents are available on Cisco com Warning Only trained and qualified personnel should be allowed to install or replace this equipment Connecting AC Input Power Connect a 280W AC i...

Страница 83: ...lead color coding you choose for the DC input power supply matches lead color coding used at the DC power source Warning Before completing any of the following steps and to prevent short circuit or shock hazards ensure that power is removed from the DC circuit To ensure that all power is OFF locate the circuit breaker on the panel board that services the DC circuit switch the circuit breaker to th...

Страница 84: ...tep 5 Insert the stripped end of the 48V lead all the way into the 48V lead receptacle and tighten the receptacle screw using the same 3 16 inch flat blade screwdriver Repeat this step for the 48V lead Note Make sure the entire stripped end of each lead is inserted all the way into its receptacle If any exposed wire at the stripped end of a lead is visible after inserting the lead into its recepta...

Страница 85: ... the following section Starting the Cisco 7204 to start the router Starting the Cisco 7204 After installing your Cisco 7204 and connecting cables start the router as follows Step 1 Check for the following Each port adapter is inserted in its slot and its respective port adapter lever is in the locked position The network processing engine and the I O controller are inserted in their slots and thei...

Страница 86: ...e configuration you will see the following System Configuration Dialog prompt System Configuration Dialog At any point you may enter a questions mark for help Use ctrl c to abort configuration dialog at any prompt Default settings are in square brackets continue with configuration dialog yes You have the option of proceeding with the setup command facility to configure the interfaces or exiting fr...

Страница 87: ...outer s I O controller Using the Enable Secret and the Enable Password The Cisco 7204 is administered using the Cisco command interpreter called the EXEC You must boot and log in to the router before you can enter an EXEC command For security purposes the EXEC has two levels of access to commands user EXEC mode and privileged EXEC mode The commands available at the user level are a subset of those...

Страница 88: ...ing AutoInstall The AutoInstall process is designed to configure the Cisco 7204 automatically after connection to your WAN For AutoInstall to work properly a Transmission Control Protocol Internet Protocol TCP IP host on your network must be preconfigured to provide the required configuration files The TCP IP host may exist anywhere on the network as long as the following two conditions are mainta...

Страница 89: ...ic Configuration of the Cisco 7204 Configuring the Cisco 7204 Once the AutoInstall process is completed use the copy running config startup config command to write the configuration data to the router s nonvolatile random access memory NVRAM Perform the following step to complete this task ...

Страница 90: ...n the setup facility any time you are at the enable prompt by entering the command setup Configuring Global Parameters When you first start the setup program you must configure the global parameters These parameters are used for controlling system wide settings Complete the following steps to enter the global parameters Step 1 Connect a console terminal to the console port on the I O controller an...

Страница 91: ...stem Configuration Dialog as shown in the following example System Configuration Dialog At any point you may enter a questions mark for help Use ctrl c to abort configuration dialog at any prompt Default settings are in square brackets continue with configuration dialog yes Step 2 When asked if you want to enter the initial configuration dialog and see the current interface summary enter yes or pr...

Страница 92: ...ines XNS DECnet or bridging Configure Vines no Configure XNS no Configure DECnet no Configure bridging no Step 9 In most cases you will use IP routing If you are using IP routing you must also select an interior routing protocol You can specify only one of two interior routing protocols to operate on your system using setup Interior Gateway Routing Protocol IGRP or Routing Information Protocol RIP...

Страница 93: ...work addresses and subnet mask information Consult with your network administrator for this information Configuring Ethernet Interfaces Step 1 In the following example the system is being configured for an Ethernet LAN using IP Respond to the prompts as follows using your own addresses and mask at the setup prompts Configuring interface parameters Configuring interface Ethernet0 0 Is this interfac...

Страница 94: ...t bits mask is 255 0 0 0 Configure IPX on this interface no yes IPX network number 2 Configure AppleTalk on this interface no yes Extended AppleTalk network no AppleTalk network number 1 Step 3 Save your settings to NVRAM Refer to the section Saving Your Settings to NVRAM later in this chapter Note If additional synchronous serial interfaces are available in your system you are prompted for their ...

Страница 95: ...llowing configuration command script was created hostname Router enable secret 5 1 u8z3 PMYY8em 8sszhzk78p Y0 enable password wilma line vty 0 4 password s snmp server community public ip routing no vines routing ipx routing appletalk routing no apollo routing no decnet routing no xns routing no clns routing no bridge 1 Turn off IPX to prevent network conflicts interface Ethernet0 0 no ipx network...

Страница 96: ...n only be made in enable mode Router enable The prompt changes to the privileged EXEC prompt Router Step 4 Enter the config terminal command at the enable prompt to enter configuration mode from the terminal Router config terminal Enter configuration commands one per line End with CNTL Z Router config At the Router config prompt enter the interface type slot port command to enter interface configu...

Страница 97: ...ced configuration changes after you establish the basic startup configuration for your Cisco 7204 refer to the publications listed in the Related Documentation section on page xiii of the Preface These publications contain additional information on using the configure command The configuration publications also provide information about the following tasks Understanding and working with the user i...

Страница 98: ...4 12 Cisco 7204 Installation and Configuration Guide OL 5101 02 Chapter 4 Performing a Basic Configuration of the Cisco 7204 What Do I Do Now ...

Страница 99: ...fault settings the recommendations in this chapter might not apply Make sure to review the safety warnings listed in the publication Regulatory Compliance and Safety Information for the Cisco 7200 Series Routers that accompanied your Cisco 7204 before using the troubleshooting procedures in this chapter If you are unable to easily solve the problem contact a customer service representative for ass...

Страница 100: ...blem solving Turn on system power Troubleshoot power subsystem Troubleshoot cooling subsystem Reseat I O controller and restart Reseat NPE G1 and restart System startup successful Reseat port adapters and restart Obtain technical assistance DC OK LED on Fans operating Fans operating I O controller LEDs OK Port adapter enabled LEDs on H6595 Yes No Yes Yes Yes Yes No No No No Yes Yes Yes Check syste...

Страница 101: ...O controller or port or service adapter that is dislodged from the midplane Although an overtemperature condition is unlikely at initial startup the environmental monitoring functions are included in this chapter because they also monitor internal voltages When you start up the Cisco 7204 for the first time you should observe the startup sequence described in the Starting the Cisco 7204 section on...

Страница 102: ...e I O Controller section on page 5 6 Note The I O controller without the Fast Ethernet port does not have the FE enabled LED and the FE link LED The I O controller without the Fast Ethernet port and the I O controller that is equipped with a single MII port do not have the MII enabled RJ 45 enabled and RJ 45 link LEDs The FE link LED comes on only when the Fast Ethernet port on the I O controller ...

Страница 103: ...ED fails to come on proceed to the section Troubleshooting the Port Adapters later in this chapter When all LEDs come on to indicate that the system has booted successfully the initial system banner should be displayed on the console screen If it is not displayed refer to the Console and Auxiliary Port Connection Equipment section on page 3 14 in Chapter 3 Installing the Cisco 7204 to verify that ...

Страница 104: ...r The procedures in this section assume that the I O controller network processing engine and router itself are in the original factory configuration and that you have not made changes to your configuration file If the I O controller LEDs do not go on as expected refer to the Identifying Startup Problems section on page 5 3 check the following items to help isolate the problem Do all of the I O co...

Страница 105: ... the fans start operating To determine if the fans are operating listen for them In noisy environments place your hand on the left side of the chassis when viewing the chassis from the front to feel for air being forced out the vents If yes the power to the fan tray is good If no there is a problem with the fan tray or power Refer to the section Troubleshooting the Power Subsystem in this chapter ...

Страница 106: ...e OL 5101 01 Chapter 5 Troubleshooting the Installation Troubleshooting the Cooling Subsystem If you experience trouble with the startup that is not resolved with these procedures contact a service representative for assistance and further instructions ...

Страница 107: ...cument For procedures that explain how to replace main Flash and ROM monitor memory in Cisco 7200 series routers refer to the Memory Replacement Instructions for the Network Processing Engine and Input Output Controller document The preceding documents are available on Cisco com Viewing Your System Configuration You can use the show version and the show diag commands to view information specific t...

Страница 108: ... port adapters and I O controller with or without the Fast Ethernet port are installed in slot 0 through slot 4 of your Cisco 7204 You can also use the show diag slot command to display information about a specific port adapter slot The following example shows the output from the show diag command The I O controller listed in slot 0 has the Fast Ethernet port that is equipped with an MII port and ...

Страница 109: ...ersion show diag and other software commands refer to the publications listed in the Related Documentation section on page xiii in the Preface Replacing a Port Adapter or Service Adapter At some point you might want or need to replace a port or service adapter in your Cisco 7204 The following procedures explain how to remove and install a port or service adapter For software commands that display ...

Страница 110: ...the port adapter half way out of the slot disconnect all cables from the port adapter This step does not apply to service adapters Step 5 After disconnecting the cables pull the port adapter from its chassis slot Caution Always handle the port or service adapter by the carrier edges and handle never touch the adapter s components or connector pins Refer to Figure 6 2 Figure 6 2 Port and Service Ad...

Страница 111: ...o Figure 6 2 Step 3 Align the left and right edge of the adapter s metal carrier between the guides in the port adapter slot Refer to Figure 6 3 Figure 6 3 Aligning the Adapter Metal Carrier Between the Slot Guides Step 4 With the metal carrier aligned in the slot guides gently slide the port adapter half way into the port adapter slot If you are installing a service adapter carefully slide the se...

Страница 112: ... the router midplane Figure 6 4 Placing the Port Adapter Lever In the Locked Position Step 7 Move the port adapter lever to the locked position Refer to Figure 6 4 Note If the lever does not move to the locked position the adapter is not completely seated in the midplane Carefully pull the adapter half way out of the slot reinsert it and move the port adapter lever to the locked position This comp...

Страница 113: ... section on page 6 12 contains instructions that explain how to reformat a Flash memory card Step 1 Orient the Flash memory card so that its connector end faces the appropriate slot Refer to Figure 6 5a Step 2 Carefully guide the card into the slot until the card seats in the slot s connector and the eject button for the slot pops out toward you Refer to Figure 6 5b Note Flash memory cards do not ...

Страница 114: ... backup configuration files onto it Before you can use a new Flash memory card you must format it Use only Intel Series 2 Flash memory cards Note To avoid potential problems when inserting spare Flash memory cards in your Cisco 7204 we recommend that you reformat all of your Flash memory cards on a Cisco 7204 running one of the recommended Cisco IOS software releases listed in Software Advisor The...

Страница 115: ...wCard Formatting sector 1 Format device slot0 completed Router The new Flash memory card is now formatted and ready to use Note For this example an 8 MB Flash memory card was used and at the line Formatting sector the system counted the card s sectors backwards from 64 to 1 as it formatted them For 16 MB Flash memory cards the system counts backwards from 128 to 1 and for 20 MB Flash memory cards ...

Страница 116: ...at all of your Flash memory cards on a Cisco 7204 running one of the recommended Cisco IOS software releases listed in Software Advisor The section Reformatting a Flash Memory Card section on page 6 12 contains instructions that explain how to reformat a Flash memory card Step 3 Copy the new image new image in the following example to the Flash memory card and make this image the default boot imag...

Страница 117: ...The scenario assumes that the new image will fit on the Flash memory card in slot 0 alongside the old image If there is not enough available space use the delete command to delete files from the Flash memory card to make sufficient room for the new image however do not delete the old image file Then use the squeeze command to remove these deleted files from the Flash memory card If after you have ...

Страница 118: ...ards on a Cisco 7204 running one of the recommended Cisco IOS software releases listed in Software Advisor Caution The following formatting procedure erases all information on the Flash memory card To prevent the loss of important data that might be stored on a Flash memory card proceed carefully If you want to save the data on a Flash memory card copy the data to a server before you format the ca...

Страница 119: ...er volume id up to 30 characters MyNewCard Formatting sector 1 Format device slot0 completed Router Step 4 Copy the files you saved to the TFTP server back to the Flash memory card as follows Router copy tftp slot0 Enter source filename image name 20575008 bytes available on device slot0 proceed confirm address or name of remote host tftp server name tftp server name loading new image from tftp se...

Страница 120: ...sswords Step 7 Recover or replace the displayed passwords Step 8 Change the configuration register back to its original setting Note To recover a lost password if Break is disabled on the router you must have physical access to the router Details of the Password Recovery Procedure Complete the following steps to recover or replace a lost enable enable secret or console login password Step 1 Attach...

Страница 121: ...g Step 11 Scan the configuration file display looking for the passwords the enable passwords are usually near the beginning of the file and the console login or user EXEC password is near the end The passwords displayed will look something like this enable secret 5 1 ORPP s9syZt4uKn3SnpuLDrhuei enable password 23skiddoo line con 0 password onramp The enable secret password is encrypted and cannot ...

Страница 122: ...s will be administratively shutdown and unavailable when the router is restarted Step 16 Use the config register command to set the configuration register to the original value noted in Step 3 or Step 7 or to the factory default value 0x2102 as follows Hostname config config register 0x2102 Step 17 Press Ctrl Z hold down the Control key while you press Z or enter end to exit configuration mode and...

Страница 123: ...a binder group of 25 pairs The colors used for a group are white red black yellow and violet The colors used for pair within group are blue orange green brown and slate Each pair must have a unique color combination One wire within each pair has a solid background of its group color and stripes of the pair within group color the second wire has the colors reversed Table A 1 lists the sequences Not...

Страница 124: ... Green Black 13 14 1 Black Brown 39 14 2 Brown Black 14 15 1 Black Slate 40 15 2 Slate Black 15 16 1 Yellow Blue 41 16 2 Blue Yellow 16 17 1 Yellow Orange 42 17 2 Orange Yellow 17 18 1 Yellow Green 43 18 2 Green Yellow 18 19 1 Yellow Brown 44 19 2 Brown Yellow 19 20 1 Yellow Slate 45 20 2 Slate Yellow 20 21 1 Violet Blue 46 21 2 Blue Violet 21 22 1 Violet Orange 47 22 2 Orange Violet 22 23 1 Viole...

Страница 125: ...wire color code The alternate color code is included because sometimes the station wire uses the first three pairs of the standard color code white blue blue white and so on while other times it uses the six alternate colored wires Table A 2 Second Color Code Scheme for Smaller Numbers of Wires Pair Number Wire Number Solid Color Stripe Color Alternate Color Pin Number 1 1 White Blue Green 4 1 2 B...

Страница 126: ...A 4 Cisco 7204 Installation and Configuration Guide OL 5101 02 Appendix A Industry Standard Wiring Plans ...

Страница 127: ...o the following Set and display the configuration register value Force the system into the bootstrap program Select a boot source and default boot filename Enable or disable the Break function Control broadcast addresses Set the console terminal baud rate Load operating software from ROM Enable booting from a Trivial File Transfer Protocol TFTP server Table B 1 lists the meaning of each of the con...

Страница 128: ...mmands in the configuration file the router attempts to boot the first file in system Flash memory If no file is found in system Flash memory the router attempts to netboot a default file with a name derived from the value of the boot field for example cisco2 7200 If the netboot attempt fails the boot helper image in boot flash memory will boot up If boot commands are in the configuration file the...

Страница 129: ...t filenames or actions Note A boot system configuration command in the router configuration in NVRAM overrides the default netboot filename Bit 6 Bit 6 causes the system software to ignore nonvolatile random access memory NVRAM contents Bit 7 Bit 7 enables the OEM bit It disables the bootstrap messages at startup Table B 3 Default Boot Filenames Action File Name Bit 3 Bit 2 Bit 1 Bit 0 Bootstrap m...

Страница 130: ...2 in the configuration register determine the baud rate of the console terminal Table B 5 shows the bit settings for the four available baud rates The factory set default baud rate is 9600 Bit 13 Bit 13 determines the server response to a bootload failure If boot commands are in the configuration file the router software processes each boot command in sequence until the process is successful or th...

Страница 131: ...th 12288K 4096K bytes of memory R4700 processor Implementation 33 Revision 1 0 Level 2 Cache Last reset from power on Bridging software X 25 software Version 2 0 NET2 BFE and GOSIP compliant Basic Rate ISDN software version 1 0 Chassis Interface 12 Ethernet IEEE 802 3 interfaces 1 FastEthernet IEEE 802 3 interface 4 ISDN Basic Rate interfaces 1 Compression port adapter Integrated NT1s for 4 ISDN B...

Страница 132: ... be set in the configuration mode with the config register 0x value command See the following sample output Router config t Enter configuration commands one per line End with CNTRL Z Router config config register 0x2142 Router config end Router SYS 5 CONFIG_I Configured from console by console Setting the Configuration Register While Running ROM Monitor If the prompt is the or0x value command sets...

Страница 133: ...nge console baud rate y n n n change the boot characteristics y n n y enter to boot 0 ROM Monitor 1 the boot helper image 2 15 boot system 0 2 Configuration Summary enabled are load rom after netboot fails console baud 9600 boot image sepcified by the boot system commands or default to cisco2 c7200 do you wish to change the configuration y n n n You must reset or power cycle for new config to take...

Страница 134: ...B 12 Cisco 7204 Installation and Configuration Guide OL 5101 02 Appendix B Configuration Register Information Setting the Configuration Register While Running ROM Monitor ...

Страница 135: ...ntroller removal while system operating 1 25 network processing engine removal while system operating 1 25 changes reviewing configuration 4 11 chassis clearance 1 28 2 8 footprint 2 7 ground receptacles 1 4 lifting 2 2 3 9 physical description 1 21 rack mounting 3 1 checklist installation 2 12 Cisco IOS requirements 1 6 clearance chassis 1 28 for air circulation 2 8 commands boot system flash 6 1...

Страница 136: ...uration mode 4 10 using the setup command facility 4 4 configuring global parameters 4 4 connecting power 3 20 connection equipment auxiliary port signals 3 16 console and auxiliary 3 14 console port signals 3 15 Fast Ethernet MII and RJ 45 on I O controller 3 16 connector auxiliary port 3 16 console port 3 15 console port cable 3 15 console terminal system banner display 5 5 cooling subsystem 5 3...

Страница 137: ... tray physical description 1 20 field replaceable units FRUs 1 6 filler panels port adapter 2 9 power supply 2 9 Flash memory copy command 6 11 copying between cards 6 11 copying files 6 9 Flash memory card formatting a new Flash memory card 6 8 inserting and removing a Flash memory card 6 7 memory options 1 23 physical description 1 22 Flash memory disk memory options 1 23 physical description 1 ...

Страница 138: ...ty 2 2 L LEDs DC OK 3 23 enabled on interface processors 3 24 I O controller 1 13 5 3 PCMCIA slots 0 and 1 1 16 power supply 1 18 5 3 lifting the chassis 2 2 3 9 lightning storm safety during 2 3 M messages environmental 1 28 fan failure 2 9 MII port on I O controller pinouts 3 17 modifications to configuration reviewing 4 11 N network processing engine components 1 7 DRAM configurations 1 10 hand...

Страница 139: ... 5 3 physical description 1 18 power factor corrector 2 4 shutdown 1 27 troubleshooting 5 3 privileged command level 4 1 problem solving subsystem 5 3 procedures checking the shipping container 2 13 configuring the Cisco 7204 4 2 connecting I O controller cables 3 13 connecting port adapter cables 3 13 connecting power 3 20 copying images between Flash memory cards 6 11 copying images to a Flash m...

Страница 140: ...9 show interfaces command 1 24 show running config command 4 11 show startup config command 4 11 show version command 1 10 6 1 shutdown environmental 1 26 fan failure 1 30 power supply 1 27 processor 1 27 thresholds 1 26 SIMM configurations network processing engine 1 10 Simple Network Management Protocol See SNMP 4 6 site log 2 14 site requirements 2 4 environment 2 8 equipment racks 2 6 plant wi...

Страница 141: ...ools for installation 2 10 troubleshooting cooling subsystem 5 7 power subsystem 5 5 processor subsystem 5 6 startup problems 5 3 strategy 5 2 W warning status level environmental monitor 1 27 wiring color codes A 1 interference 2 4 plant 2 4 telephone 2 3 telephone industry 25 pair color code A 1 ...

Страница 142: ...Index IN 8 Cisco 7204 Installation and Configuration Guide OL 5101 02 ...

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