Product Overview Route Processors | Cisco Systems 12406 series

Chapter 1 Product Overview

Route Processors

The Cisco IOS software images are stored in Flash memory. Two types of Flash memory ship with the PRP:

1.Onboard Flash memory—Ships as a single in-line memory module (SIMM). This Flash memory contains the Cisco IOS boot image (bootflash) and is not field replaceable.

2.Flash disk—The PRP ships with a Flash disk that can be installed in either Flash disk slot. (See Figure 1-9.) The Flash disk contains the Cisco IOS software image.

Storing the Cisco IOS images in Flash memory enables you to download and boot from upgraded Cisco IOS software images remotely, or from software images that reside in PRP Flash memory.

Cisco 12000 Series Routers support downloadable system software for most Cisco IOS software upgrades. This enables you to remotely download, store, and boot from a new Cisco IOS software image. The Cisco IOS software runs from within the SDRAM of the PRP.

Figure 1-9shows the locations of the various hardware components on the PRP.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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Cisco Systems 12406 series, 12006 series manual Product Overview Route Processors

Contents

Product Overview Introduction Product Description Cisco 12006 and Cisco 12406 router Front View Product Overview Product Description Product Overview Product Description Cisco 12006 and Cisco 12406 router Rear View RP and Line Card Slots Physical and Functional DescriptionChassis Chassis Backplane Switch Fabric Card SlotsAlarm Card Slots Power Cooling Multigigabit Crossbar Switch Fabric Switch Fabric Card Types Nonredundant and Redundant System Configurations Switch Fabric Switching Capacity and Router Type Switch Fabric Redundancy Device Discovery Maintenance BusPower-Up/Down Control Code Download DiagnosticsEnvironmental Monitoring and Alarms Route Processors Route Processor Functions Route Processor Types Gigabit Route Processor Product Overview Route Processors GRP Layout GRP Memory Components Type Size Quantity Description Location Sram Reset AUX Coll RX Link MII System Status LEDs Soft Reset Switch GRP Alphanumeric LED Displays Partial Faceplate Pcmcia Slots Asynchronous Serial Ports Ethernet Port Performance Route Processor Performance Route Processor Front View Product Overview Route Processors PRP Horizontal Orientation PRP Memory Components Sdram Sdram Flash Disk Size Product Number Soft Reset Switch Flash Disk Slots Ethernet Ports Line Cards 10 Sample Line Cards Alarm Cards Alarm Alarm Card Status Alarm Output FunctionClock and Scheduler Card and Switch Fabric Card Status Alarm Relay Contact Connector Power SubsystemsPower Source Monitoring AC Power Subsystem AC PDU 12 AC Power Distribution Unit AC-Input Power Supply 13 AC-Input Power Supply Product Overview Power Subsystems DC Power Subsystem LED Label Function State Description 14 DC Power Distribution Unit Power a DC-Input Power Entry Module 16 DC-Input Power Entry Module LED Label Color Function Power Distribution Blower Module Top view Air Filters 18 Air Filter Locations Cable-Management System 19 Chassis Cable-Management System Technical Specifications Field-Replaceable Units