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Product Numbers:
MEM2600-4D=, MEM2600-8D=, MEM2600-16D=, MEM2600-32D=, MEM2600-16U20D=, MEM2600-16U24D=, MEM2600-16U32D=, MEM2600-16U48D=, MEM2600-16U64D=, MEM2600-4FS=, MEM2600-8FS=, MEM2600-16FS=, MEM2600-4U8FS=, MEM2600-4U16FS=, MEM2600-8U16FS=
This document describes how to upgrade the System-Code single inline memory module (SIMM) (Flash memory), and the dynamic random-access memory (DRAM) dual in-line memory modules (DIMMs) in a Cisco 2600 series router.
Use this document in conjunction with the Cisco 2600 Series Hardware Installation Guide and the Regulatory Compliance and Safety Information document for your router. If you have questions or need help, refer to the section "Obtaining Service and Support" later in this document.
This document includes the following sections:
Additional maintenance procedures are available on the Documentation CD-ROM that shipped with the router.
Follow these guidelines to ensure general safety:
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might harm you. A warning symbol precedes each safety warning.
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents.Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen.
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.
Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents.
Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt.
Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti.
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.
Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes.
¡Advertencia! Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes.
Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador.
To see translated versions of the remaining warning in this document, refer to the Regulatory Compliance and Safety Information document that accompanied the router.
| Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. |
| Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. |
The following warning applies to routers with a DC power supply:
| Before performing any of the following procedures, 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 the OFF position, and tape the switch handle of the circuit breaker in the OFF position. |
| Ultimate disposal of this product should be handled according to all national laws and regulations. |
| To avoid damaging electrostatic discharge (ESD)-sensitive components, ensure that you have discharged all static electricity from your body before opening the chassis. |
| The Ethernet 10BaseT, serial, console, and auxiliary ports contain safety extra-low voltage (SELV) circuits. BRI circuits are treated like telephone-network voltage (TNV) circuits. Avoid connecting SELV circuits to TNV circuits. |
| Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
Follow these guidelines when working on equipment powered by electricity:
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when electronic printed circuit cards are improperly handled and can result in complete or intermittent failures. Always follow ESD prevention procedures when removing and replacing cards. Ensure that the router chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD voltages to ground. To properly guard against ESD damage and shocks, the wrist strap and cord must be used correctly. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
| For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 megohms (Mohm). |
| Before opening the chassis, be sure that you have discharged all static electricity from your body and the power is OFF. |
| Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. |
This section describes how to upgrade DRAM on the system card. You might need to upgrade DRAM for the following reasons:
To see how much memory is currently installed in the router, enter the show version command. Near the middle of the resulting output, a message similar to the following displays:
Cisco XXXX(68030) processor (revision X) with 4092K/2048K bytes of memory.
This line shows how much memory is installed (in this example, 4092K/2048K). The first number represents primary memory and the second number represents shared memory.
The Cisco 2600 series routers contain two 100-pin single DIMM sockets (or banks) for DRAM, numbered 0 and 1. (See Figure 3.) Each socket can be filled with a dual, 100-pin DRAM DIMM. You can use the memory-size iomem software command to configure DRAM as a mixture of shared memory, which is used for data transmitted or received by network modules and WAN interface cards, and primary or main memory, which is reserved for the CPU. For further information about this command, refer to the Cisco IOS configuration guides and command references.
This section provides memory requirements for each Cisco IOS feature set supported by Cisco 2600 series routers. By default, all Cisco 2600 series routers contain 16 MB of DRAM and
4 MB of System Flash memory. The maximum amount of memory supported on Cisco 2600 series routers is 64 MB of DRAM and 16 MB of system Flash memory. Table 1 summarizes the minimum memory requirement for each Cisco IOS feature set.
| Cisco IOS Feature Set | DRAM (MB) | Flash Memory (MB) |
|---|---|---|
| Enterprise/APPN/Plus | 32 | 8 |
| IP/IPX/AT/DEC | 16 | 8 |
| IP/IPX/AT/DEC Plus | 24 | 8 |
| IP Only | 16 | 4 |
| IP Plus | 20 | 8 |
| Enterprise Plus | 24 | 8 |
| Service Provider | 16 | 4 |
| Remote Access Server (RAS) | 16 | 4 |
| Enterprise/APPN/Plus 40 | 32 | 8 |
| Enterprise/APPN/Plus 56 | 32 | 8 |
| Enterprise/APPN/Plus IPSEC 56 | 32 | 8 |
| IP Plus 40 | 20 | 8 |
| IP Plus 56 | 20 | 8 |
| IP Plus IPSEC 56 | 20 | 8 |
| Enterprise Plus 40 | 24 | 8 |
| Enterprise Plus 56 | 24 | 8 |
| Enterprise Plus IPSEC 56 | 24 | 8 |
This section describes the procedure for opening the chassis by removing the chassis cover.
| Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is OFF and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected. |
You will need the following tools and parts to remove and replace the DRAM DIMMs on the router:
You must open the chassis to access the internal components.
 | Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. |
Take the following steps to remove the chassis cover:
Step 1 Power OFF the router.
Step 2 Disconnect all cables from the rear panel of the router.
Step 3 Remove the screws located on the top of the chassis. Note that the chassis is comprised of two sections: top and bottom.
Step 4 Holding the chassis with both hands, position it as shown in Figure 1.
Step 5 Slide the top section away from the bottom section as shown in Figure 2.
Step 6 When the top cover is off, set it aside. Figure 3 shows the layout of the system cards.
This section describes how to upgrade the DRAM DIMMs on the system card. You might need to upgrade the DRAM DIMMs for the following reasons:
Take the following steps to install the DRAM DIMMs:
Step 1 Power OFF the router.
Step 2 Attach an ESD-preventive wrist strap.
Step 3 Open the cover following the instructions in the section "Opening the Chassis" earlier in this document.
Remove the existing DRAM DIMM by pulling outward on the connectors to unlatch them, as shown in Figure 4. Be careful not to break the holders on the DIMM connector.
| To prevent damage, do not press on the center of the DIMMs. Handle each DIMM carefully. |
Step 5 Position the new DIMM into the DIMM socket as shown in Figure 4.
Step 6 Insert the new DRAM DIMM by sliding the end with the metal fingers into the DIMM connector socket at approximately a 90-degree angle to the system card. Gently push the DIMM back into place until the latches on both sides snap into place. Do not use excessive force because the connector might break.
Step 7 Replace the router cover. Follow the instructions in the section "Closing the Chassis" later in this document.
The system code (router operating system software) is stored in a Flash memory 80-pin SIMM.
You will need the following tools to remove and replace the system-code SIMM on the router:
There is one system-code (Flash memory) SIMM socket on the system board. You can verify how much Flash memory is already installed in your router by entering the show flash EXEC command.
Take the following steps to upgrade the system-code Flash memory SIMM:
Step 1 If you have not already done so, enter the copy flash tftp EXEC command to back up the system code.
Step 2 Power OFF the router.
Step 3 Remove all cables from the rear panel of the router.
Step 4 Attach an ESD-preventive wrist or ankle strap.
Step 5 Open the chassis cover following the procedure in the section "Opening the Chassis" earlier in this document.
Step 6 Locate the system-code SIMM on the system card. (See Figure 3.)
If necessary, remove the existing system-code SIMM by pulling outward on the connector holders to unlatch them. The connector holds the SIMM tightly, so be careful not to break the holders on the SIMM connector. (See Figure 5.)
| To prevent damage, do not press on the center of the SIMM. Handle each SIMM carefully. |
Step 8 Position the new SIMM into the SIMM socket.
Step 9 Insert the new SIMM by sliding the end with the metal fingers into the appropriate SIMM connector socket at approximately a 45-degree angle to the system card. Gently push the SIMM back into place until the latches on both sides snap into place. Do not use excessive force because the connector might break.
Step 10 Replace the router cover following the procedure in the next section, "Closing the Chassis."
Take the following steps to close the chassis by replacing the cover:
Step 1 Position the two chassis sections, as shown in Figure 2.
Step 2 Referring to Figure 2, press the two chassis sections together and ensure the following:
|
| To fit the two sections together, it might be necessary to work them together at one end and then the other, working back and forth; however, use care to prevent bending the chassis edges. |
Step 3 When the two sections fit together snugly, slide the chassis top so until it fits into the front bezel.
Step 4 Replace the cover screws. Tighten the screws to no more than 8 or 9 inches/pound of torque.
Step 5 Reinstall the chassis on the wall, rack, desktop, or table.
Step 6 Reconnect all cables.
If you have increased system Flash memory, or reduced DRAM in a Cisco 2600 series router, you might need to reload the Cisco IOS image using one of the following ROM monitor commands:
For complete information on ROM monitor commands, refer to the Cisco 2600 Series Software Configuration Guide that accompanied your router package.
If both the boot and system images are erased from Flash memory, the xmodem command establishes a connection between a console and the router console or auxiliary port for disaster recovery.
xmodem [filename]--Establishes an xmodem connection between the console and the router. The optional parameter filename specifies the source file containing the Cisco IOS image.
Other options are:
-c--Use cyclic redundancy check (CRC-16).
-y--Use Ymodem transfer protocol.
-r--Copy the image to DRAM for launch.
-x--Do not launch image on completion of download.
The tftpdnld command downloads a Cisco IOS software image from a remote server into Flash memory using TFTP.
tftpdnld--Begins the TFTP copy command.
The following variables are required:
IP_ADDRESS--The IP address for the router you are using.
IP_SUBNET_MASK--The subnet mask for the router you are using.
DEFAULT_GATEWAY--The default gateway for the router you are using.
TFTP_SERVER--The IP address of the server from which you want to download the image file.
TFTP_FILE--The name of the file that you want to download.
The following variables are optional:
TFTP_VERBOSE--Print setting. 0=quiet, 1=progress, 2=verbose. The default is 1.
TFTP_RETRY_COUNT--The retry count for ARP and TFTP. The default is 7.
TFTP_TIMEOUT--The overall timeout of the operation in seconds. The default is 2400 seconds.
TFTP_CHECKSUM--Performs a checksum test on the image. 0=no 1=yes The default is 1.
The syntax for specifying the variables is:
VARIABLE_NAME=value
After you specify the variables, you must reenter the tftpdnld command. For example:
rommon 1 >tftpdnldrommon 2 > IP_ADDRESS=172.15.19.11rommon 3 > IP_SUBNET_MASK=255.255.255.0rommon 4 > DEFAULT_GATEWAY=172.15.19.1rommon 5 > TFTP_SERVER=172.15.20.10rommon 6 > TFTP_FILE=/tftpboot/c2600-i-mzrommon 7 > TFTP_VERBOSE=1rommon 8 >tftpdnldIP_ADDRESS=172.15.19.11 IP_SUBNET_MASK=255.255.255.0 DEFAULT_GATEWAY=172.15.19.1 TFTP_SERVER=172.15.20.10 TFTP_FILE=/tftpboot/c2600-i-mz TFTP_VERBOSE=1 Invoke this command for disaster recovery only. WARNING: all existing data in flash will be lost! Do you wish to continue? y/n: [n]:
Enter y to begin downloading the Cisco IOS software image. When the process is complete, the ROM monitor mode prompt displays on your screen.
For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs, which are described in the section "Service and Support" in the information packet that shipped with your chassis.
For service and support for a product purchased directly from Cisco, use CCO.
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar, select Documentation, and click Enter the feedback form. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
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