Cisco Systems 3745 Series, 3600 Series, 3725 Series manual Memory Capacities, Dram

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Memory Capacities

This document contains the following sections:

•Memory Capacities, page 2

•Memory Configurations, page 3

•Safety Recommendations, page 4

•Tools and Equipment Needed, page 10

•Upgrading System Memory in Cisco 3725 Routers, page 10

•Upgrading System Memory in Cisco 3745 Routers, page 17

•Recovering Compact Flash Memory and System Images, page 27

•Obtaining Documentation, page 27

•Documentation Feedback, page 28

•Obtaining Technical Assistance, page 28

•Obtaining Additional Publications and Information, page 29

Memory Capacities

You might need to upgrade memory for the following reasons:

•To upgrade to a new Cisco IOS feature set or release that requires additional memory. (Memory requirements for each feature set and release are available in the release notes for that release.)

•To use very large routing tables, many protocols (as may be required, for example, when the router is part of both a large external network and your internal network), or other memory-intensive features such as spoofing or protocol translations.

This document describes how to upgrade both dynamic memory and compact flash memory. Cisco 3700 series routers use dynamic memory in the form of SDRAM DIMMs (Cisco 3725 router) or SDRAM SODIMMs (Cisco 3745 router). Memory capacities are shown in Table 1.

Table 1

Memory Capacities for Cisco 3700 Series Routers

 

 

 

 

 

Router

 

DRAM

Compact Flash Memory

 

 

 

 

Cisco 3725

 

256- (default) to 256-MB SDRAM DIMMs

32- (default) to 128-MB memory card

 

 

 

 

Cisco 3745

 

256- (default) to 512-MB SDRAM SODIMMs

32- (default) to 128-MB memory card

 

 

 

 

Note This document discusses how to replace dynamic memory only. To learn how to replace CompactFlash memory cards, refer to Installing and Formatting Cisco 2691, Cisco 3631, and Cisco 3700 Series CompactFlash Memory Cards, available online at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3700/hw_inst/hw_notes/ index.htm.

Upgrading System Memory in Cisco 3700 Series Routers

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Contents Upgrading System Memory in Cisco 3700 Series Routers Memory Capacities DramMemory Configurations Dynamic MemorySafety Recommendations Compact Flash MemorySafety Warnings Waarschuwing Belangrijke VeiligheidsinstructiesWarnung Wichtige Sicherheitsanweisungen OBS! Spara Dessa Anvisningar OL-5423-02 Safety with Electricity Preventing Electrostatic Discharge Damage Tools and Equipment NeededUpgrading System Memory in Cisco 3725 Routers Removing the Cisco 3725 Router Cover Replacing Cisco 3725 Sdram Sdram Dimm Location and OrientationRemoving Sdram DIMMs Sdramm Dimm Locations in the Cisco 3725 RouterProceed to the Installing Sdram DIMMs section on Installing Sdram DIMMs Replacing CompactFlash Memory CardsReplacing the Cisco 3725 Cover Replacing the Cover on a Cisco 3725 RouterRemoving the Cisco 3745 Mainboard Tray Upgrading System Memory in Cisco 3745 RoutersReplacing Connections to the Router Captive Screws on a Cisco 3745 Router Removing the Front Panel from a Cisco 3745 Router Replacing Cisco 3745 Sdram Sdram Sodimm Location and OrientationRemoving Sdram SODIMMs Sdramm Sodimm Location in the Cisco 3745 RouterInstalling Sdram SODIMMs Proceed to Replacing the Cisco 3745 Mainboard section on Replacing the Cisco 3745 Mainboard Inserting the Mainboard into a Cisco 3745 RouterInstalling the Front Panel on a Cisco 3745 Router Reinstall the chassis on a rack or desktop Cisco.com Using the xmodem CommandObtaining Documentation Ordering Documentation Documentation FeedbackObtaining Technical Assistance Cisco Technical Support WebsiteObtaining Additional Publications and Information Submitting a Service RequestDefinitions of Service Request Severity Obtaining Additional Publications and Information

3745 Series, 3725 Series, 3600 Series specifications

Cisco Systems has a long-standing reputation in the networking industry, and its series of routers, notably the 3725, 3600, and 3745, epitomize the company’s commitment to delivering high-performance solutions. This article delves into the main features, technologies, and characteristics that define these router series.

The Cisco 3725 Series, introduced as part of the 3700 series, is designed to offer a reliable platform for medium-sized enterprises. It supports various network functionality, including advanced routing protocols such as RIP, EIGRP, and BGP. The 3725 features a modular design that allows for easy scalability and customization. With support for voice, video, and data applications, it also enables various WAN interfaces, including T1/E1, DSL, and Frame Relay. The integration of security features, such as firewall capabilities and VPN support, makes the 3725 a robust choice for organizations looking to enhance their network security.

In the same family, the Cisco 3600 Series serves as a versatile option suited for branch offices and enterprise environments. Renowned for its flexibility, the 3600 supports numerous networking modules, making it adaptable to changing needs. Its high-density interface options, including serial, Ethernet, and ISDN interfaces, allow for seamless connectivity to different types of networks. Additionally, the 3600 provides strong support for voice-over-IP (VoIP) applications, thus making it popular among businesses that wish to unify their communication services.

The Cisco 3745 Series builds upon the strengths of its predecessors with increased performance and additional features. It integrates VoIP capabilities, ensuring a high-quality experience for voice communications over data networks. With enhanced encryption options and advanced security measures, the 3745 is tailored for organizations with heightened security requirements. The router supports a wide range of applications, including web hosting and remote access services. Furthermore, its ability to incorporate various modules, such as interface cards and voice cards, results in a highly customizable networking solution.

Overall, Cisco's 3725, 3600, and 3745 Series routers exemplify the balance of performance, reliability, and flexibility. Designed to meet the demands of medium and large enterprises, these routers provide essential features like modularity, scalable interfaces, strong security, and support for various applications. Each series offers unique advantages, allowing organizations to select the most suitable solution based on their specific needs. As networking technology continues to evolve, these routers remain relevant, helping businesses adapt to changing landscapes.
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