Cisco Systems 3600 Series, 3725 Series, 3745 Series manual Memory Configurations, Dynamic Memory

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Memory Configurations

Memory Configurations

For information on configuring dynamic memory and compact flash memory, see the following sections.

Dynamic Memory

You can configure dynamic memory (SDRAM) as a mixture of primary or main memory that is reserved for the CPU and shared memory that is used for data transmitted or received by modules and WAN interface cards.

To examine current dynamic memory status or reconfigure memory allocation, do the following, as appropriate:

Step 1 To see how much memory is currently installed in your router, enter the show version command in EXEC mode. Near the middle of the resulting output, locate a message similar to the following:

Cisco XXXX processor (revision X) with 24576K/8192K bytes of memory.

This line shows how much memory is installed (in this example, 24576K/8192K). The first number represents primary memory; the second number represents shared memory.

Step 2 To configure the proportion of SDRAM devoted to main memory and to shared memory, enter the memory-size iomem command in global configuration mode.

Note For information about these and related commands, refer to the Cisco IOS configuration guides and command references. See the “Obtaining Documentation” section on page 27 for information about these publications.

Dynamic memory resides in one or two sockets in the router chassis. A socket corresponds to one bank of memory. Cisco 3700 series router sockets are as follows:

•Cisco 3725: Two sockets, each of which can support one SDRAM DIMM or be left empty; sockets can be filled in any order

•Cisco 3745: One socket that can support two SDRAM SODIMMs, one on top of the other

SDRAM DIMM and SODIMM sizes allowed in each router type, and the total memory capacity resulting from insertion of one or two DIMMs or SODIMMs, are shown in Table 2.

Upgrading System Memory in Cisco 3700 Series Routers

 

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Contents Upgrading System Memory in Cisco 3700 Series Routers Dram Memory CapacitiesDynamic Memory Memory ConfigurationsCompact Flash Memory Safety RecommendationsWaarschuwing Belangrijke Veiligheidsinstructies Safety WarningsWarnung Wichtige Sicherheitsanweisungen OBS! Spara Dessa Anvisningar OL-5423-02 Safety with Electricity Tools and Equipment Needed Upgrading System Memory in Cisco 3725 RoutersPreventing Electrostatic Discharge Damage Removing the Cisco 3725 Router Cover Sdram Dimm Location and Orientation Replacing Cisco 3725 SdramSdramm Dimm Locations in the Cisco 3725 Router Removing Sdram DIMMsProceed to the Installing Sdram DIMMs section on Replacing CompactFlash Memory Cards Installing Sdram DIMMsReplacing the Cover on a Cisco 3725 Router Replacing the Cisco 3725 CoverUpgrading System Memory in Cisco 3745 Routers Replacing Connections to the RouterRemoving the Cisco 3745 Mainboard Tray Captive Screws on a Cisco 3745 Router Removing the Front Panel from a Cisco 3745 Router Sdram Sodimm Location and Orientation Replacing Cisco 3745 SdramSdramm Sodimm Location in the Cisco 3745 Router Removing Sdram SODIMMsInstalling Sdram SODIMMs Proceed to Replacing the Cisco 3745 Mainboard section on Inserting the Mainboard into a Cisco 3745 Router Replacing the Cisco 3745 MainboardInstalling the Front Panel on a Cisco 3745 Router Reinstall the chassis on a rack or desktop Using the xmodem Command Obtaining DocumentationCisco.com Cisco Technical Support Website Documentation FeedbackObtaining Technical Assistance Ordering DocumentationSubmitting a Service Request Definitions of Service Request SeverityObtaining Additional Publications and Information 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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