Cisco Systems ASR 903 manual RSP Modules, Supported RSP Features, page RSP Redundancy, page

Chapter 1 Cisco ASR 903 Router Overview

Cisco ASR 903 Router Features

Figure 1-2shows the fan tray.

Figure 1-2 Cisco ASR 903 Router Fan Tray

FAN TEMP

CRIT MAJ MIN

ALARM

281933

For more information about air flow guidelines, see Air Flow Guidelines, page 2-11. For instructions on how to install the fan tray, see Installing the Fan Tray, page 3-8. For a summary of the LEDs on the fan tray, see “LED Summary” section on page 5-7.

RSP Modules

The Cisco ASR 903 Router is designed to use up to two RSP modules to handle the data plane, network timing, and control plane functionalities for the router. The RSP configuration allows you to use Cisco IOS software to control chassis management, redundancy, external management, and system status indications on the router.

The following sections describe the Cisco ASR 903 Router RSP:

•Supported RSP Features, page 1-7

•RSP Redundancy, page 1-7

•Network Timing Interfaces, page 1-8

•RSP Interfaces, page 1-8

RSP features include:

•Loading software onto processor-based interface modules

•Redundant RSP management—The RSP manages detection of RSPs, exchange of health and status information, role negotiation, function for detection, health and status exchange, role negotiation

•Packet processing

Cisco ASR 903 Router Hardware Installation Guide

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