Appendix A Technical Specifications

Product Architecture

Table A-7

PRP Memory Components

 

 

 

 

 

Type

Size

Quantity

Description

 

 

 

 

SDRAM1

512 MB, 1 GB,

1 or 2

512-MB or 1-GB DIMMs (based on SDRAM required)

 

or 2 GB

 

for main Cisco IOS software functions.

 

 

 

 

SRAM2

2 MB (fixed)

 

Secondary CPU cache memory functions.

NVRAM3

2 MB (fixed)

1

Nonvolatile random-access memory (NVRAM) for the

 

 

 

system configuration file.

 

 

 

 

Flash Memory

64 MB SIMM4

1

Contains Cisco IOS software images and other

 

 

 

user-defined files on the PRP.

 

 

 

 

Flash Memory

20 MB5

Up to 2

Contains Cisco IOS software images and other

(card)

 

 

user-defined files on up to two PCMCIA-based Flash

 

 

 

memory cards.

 

 

 

 

Flash boot

512 KB

1

Flash EPROM for the ROM monitor program boot

ROM

 

 

image.

 

 

 

 

1.Default SDROM configuration is 512 MB. Bank 1 (U15) must be populated first. You can use one or both banks to configure SDRAM combinations of 512 MB, 1 GB, or 2 GV. 1.5-GB configurations are not supported.

2.SRAM is not user configurable or field replaceable.

3.NVRAM is not user configurable or field replaceable.

4.Flash memory SIMM is not user configurable or field replaceable.

5.ATA Flash disks, and Type I and Type II linear Flash memory cards are supported.

The Cisco IOS software images that run the Cisco 12404 router reside in Flash memory, which is located on the PRP in the form of a single in-line memory module (SIMM), and on up to two (PCMCIA) cards (called Flash memory cards) that insert in the two PCMCIA slots on the front of the PRP. Storing the Cisco IOS images in Flash memory enables you to download and boot from upgraded Cisco IOS images remotely or from software images resident in PRP Flash memory.

The Cisco 12404 router supports system software downloads for most Cisco IOS software upgrades, which enables you to remotely download, store, and boot from a new Cisco IOS image. See Figure A-3.

 

Cisco 12404 Internet Router Installation and Configuration Guide

A-14

OL-11636-01

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Cisco Systems Cisco 12404 appendix Type Size Quantity Description, Sdram

Cisco 12404 specifications

The Cisco 12404 is a robust router designed for service providers and large enterprises, aiming to deliver high performance, scalability, and flexibility in networking. As part of the Cisco 12000 Series, the 12404 is built to address the demands of high-bandwidth applications and a growing number of users in modern networks.

One of the standout features of the Cisco 12404 is its versatility. The router supports various modules for enhanced functionality, including high-speed interfaces, advanced processing capabilities, and additional memory. This modular design allows organizations to customize their router according to specific networking needs and expand as requirements evolve.

In terms of performance, the Cisco 12404 is equipped with a high-capacity forwarding engine that ensures rapid data transfer and low latency. This capability is crucial for businesses that rely on real-time communication, such as VoIP and video conferencing. The router supports a variety of protocols, including IP, MPLS, and Ethernet, making it adaptable to diverse operational environments.

Scalability is another significant characteristic of the Cisco 12404. It can handle thousands of routes and high volumes of traffic, making it suitable for ISPs managing large subscriber bases. With its support for 10 Gigabit and 100 Gigabit Ethernet interfaces, the router can accommodate increasing data loads without compromising performance.

Advanced features like Quality of Service (QoS) enable network administrators to prioritize traffic based on the type or importance of data. This ensures that critical applications receive the bandwidth they need while less essential services are deprioritized, thus optimizing overall network efficiency.

The Cisco 12404 also integrates advanced security measures to protect sensitive data as it flows through the network. With features like Access Control Lists (ACLs), Virtual Private Network (VPN) support, and encryption capabilities, organizations can safeguard their information against potential threats.

In conclusion, the Cisco 12404 presents a compelling solution for organizations seeking a high-performance router with scalability and versatility. By combining advanced routing technologies, modular design, and robust security features, it stands out as a reliable choice for enterprises and service providers looking to optimize their core networking infrastructure.