Cisco Systems 1000 Series Manuel D’Utilisation

6-6

Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide

OL-16506-17

Chapter 6 High Availability Overview

Route Processor Redundancy

DETAILED STEPS

Example

Router# configure terminal

Router(config)# redundancy

Router(config)# mode SSO

Router(config)# exit

Router# reload

Route Processor Redundancy

Route Processor Redundancy (RPR) allows you to configure a standby RP. When you configure RPR,
the standby RP loads the Cisco IOS software on bootup and initializes itself in standby mode. In the
event of a fatal error on the active RP, the system switches to the standby RP, which reinitializes itself
as the active RP. In this event, the entire system is rebooted, so the switchover with RPR is slower than
with other High Availability switchover features such as Nonstop Forwarding/Stateful
Switchover (NSF/SSO).

Command or Action

Purpose

Step 1

enable

Example:

Router> enable

Enables privileged EXEC mode.

•

Enter your password if prompted.

Step 2

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3

redundancy

Example:

Router(config)# redundancy

Enters redundancy configuration mode.

Step 4

mode SSO

Example:

Router(config)# mode SSO

Configures SSO. When this command is
entered, the redundant supervisor engine is
reloaded and begins to work in SSO mode.

Step 5

exit

Example:

Router(config)# exit

Router #

Exits configuration mode and returns to global
configuration mode.

Step 6

reload

Example:

Router # reload

Reloads IOS.