Cisco Cisco Web Security Appliance S170 사용자 가이드

Upgrading AsyncOS for Web uses the following two step process:

Configure the update and upgrade settings. You can configure settings that 
affect how the Web Security appliance downloads the upgrade information. For 
example, you can choose from where to download the upgrade images and more. 
For more information, see 

Upgrade the system software. After you configure the update and upgrade 
settings, upgrade the software on the appliance. For more information, see 

 and 

Consider the following guidelines when you upgrade AsyncOS for Web:

Before you start the upgrade, save the XML configuration file off the Web 
Security appliance from the System Administration > Configuration File 
page or by using the 

saveconfig

 command. For more information, see 

When upgrading, do not pause for long amounts of time at the various 
prompts. If the TCP session times out during the download, the upgrade may 
fail.

Consider saving the configuration information to an XML file after the 
upgrade completes, too. 

To upgrade AsyncOS after you configure the update and upgrade settings:

On the System Administration > Configuration File page, save the XML 
configuration file off the Web Security appliance. 

On the System Administration > System Upgrade page, click Available 
Upgrades. 

The Available Upgrades page is displayed.