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This guide contains the procedure to upgrade the Synchronous Dynamic RAM (SDRAM) on the Performance Routing Engine (PRE) in the Cisco 10000 Edge Services Router (ESR).
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Note This guide does not contain the procedure for removing and replacing the PRE from the chassis. Refer to the Cisco 10000 ESR Performance Routing Engine Installation and Configuration guide or the Cisco 10000 ESR Hardware Installation Guide for information to remove and replace the PRE from the chassis. |
The following sections are included in this guide:
You can increase the amount of SDRAM in your system configuration by replacing the two dual in-line memory modules (DIMMs) with higher capacity SDRAM. The default SDRAM configuration is 128 MB, and can be upgraded to either 256 MB or 512 MB to meet your needs (Table 1).
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Note We recommend that you upgrade the SDRAM in both the primary and the secondary PRE in a redundant chassis configuration. |
| SDRAM Upgrade Options | Cisco Part Number |
|---|---|
256 MB SDRAM | ESR-PRE-MEM-256M= |
512 MB SDRAM | ESR-PRE-MEM-512M= |
Before you begin any of the procedures in this guide, Cisco recommends that you:
Notes and Cautions contain important information that you should be aware of.
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Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this publication. |
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Caution Means reader be careful. You are capable of doing something that might result in equipment damage or loss of data. |
You need the following tools and equipment to install the SDRAM:
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Caution To prevent (electrostatic discharge) ESD damage, always wear an ESD-preventive wrist or ankle strap, and handle DIMMs by the edges only. Avoid touching the memory pins or traces (the metal "fingers" along the connector edge of the DIMM). |
The Cisco 10000 system is hot-swappable which means you can remove and replace a PRE while the system is operating---if your configuration includes a secondary (redundant) PRE installed in the chassis. The hot-swapping feature allows you to remove or replace a PRE while the system maintains all routing information and ensures session preservation. Refer to the Cisco 10000 ESR Performance Routing Engine Installation and Configuration or the Cisco 10000 ESR Hardware Installation Guide for information to remove the PRE from the chassis.
This section describes how to upgrade the SDRAM DIMMs in PRE module. The DIMMs that you remove may be used in other compatible equipment and should be stored in an antistatic bag.
To remove and replace DIMMs in the PRE module:
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Caution To upgrade SDRAM, you must install identical DIMMs in both DIMM sockets. Do not mix different types of DIMMs. |
Place the PRE on an antistatic mat or pad so that the DIMMs are facing up.
Step 2 Remove each DIMM from its slot by pushing its ejector tabs out to the side and lifting the DIMM straight up (Figure 2).
Step 3 Remove a new DIMM from its antistatic bag (Figure 3).
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Caution To prevent (electrostatic discharge) ESD damage, always wear an ESD-preventive wrist or ankle strap, and handle DIMMs by the edges only. Avoid touching the memory pins or traces (the metal "fingers" along the connector edge of the DIMM). |
Step 4 Install each new DIMM by aligning the keys on the DIMM connector over the DIMM slot, and gently pushing the DIMM into the slot until the ejector tabs snap over each end of the DIMM (Figure 4).
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Caution The DIMMs are keyed and can only be inserted one way. When you insert DIMMs, use firm but not excessive pressure. If you damage a DIMM slot, you must return the PRE to Cisco for repair. |
Step 5 Reinstall the PRE in the chassis after both DIMMs are installed.
If the system fails to boot properly, or if the console terminal displays a checksum error after you install the new DIMMs, check the following:
If the system fails to boot properly after you perform these corrective actions, contact the Cisco Technical Assistance Center (TAC) for additional help (see "Cisco Connection Online" section). Before you contact TAC, make a note of any error messages, unusual LED states, or any other indications that might help the service representative to identify the problem.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
Modifying the equipment without authorization from Cisco Systems, Inc. may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.
English: This Class A digital apparatus complies with Canadian ICES-003.
French: Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
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 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.
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Note If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact the Cisco Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@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 and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
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Posted: Tue Jun 13 07:49:04 PDT 2000
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