Asa Clustering Overview - Cisco ASA Series Cli Configuration Manual

Software version 9.0 for the services module

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Introduction to the Cisco ASA

ASA Clustering Overview

In multiple context mode, the ASA includes a configuration for each context that identifies the security

policy, interfaces, and almost all the options you can configure on a standalone device. The system

administrator adds and manages contexts by configuring them in the system configuration, which, like

a single mode configuration, is the startup configuration. The system configuration identifies basic

settings for the ASA. The system configuration does not include any network interfaces or network

settings for itself; rather, when the system needs to access network resources (such as downloading the

contexts from the server), it uses one of the contexts that is designated as the admin context.

The admin context is just like any other context, except that when a user logs into the admin context,

then that user has system administrator rights and can access the system and all other contexts.

ASA Clustering Overview

ASA Clustering lets you group multiple ASAs together as a single logical device. A cluster provides all

the convenience of a single device (management, integration into a network) while achieving the

increased throughput and redundancy of multiple devices.

You perform all configuration (aside from the bootstrap configuration) on the master unit only; the

configuration is then replicated to the member units.

Cisco ASA Series CLI Configuration Guide

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