Руководство Пользователя для Cisco Cisco Content Security Management Appliance M160

upgrade version that you want to download a zip file of the upgrade image. To use the upgrade image for 
AsyncOS upgrades, enter the base URL for your local server on the Edit Update Settings page (or use 

updateconfig

 in the CLI).

You can also host an XML file on a local server that limits the available upgrades for the Cisco IronPort 
appliances on your network to the version selected at 

http://updates.ironport.com/fetch_manifest.html

. Your Cisco IronPort appliances still download 

the upgrade from the Cisco IronPort Systems update servers. If you want to host the upgrade list on a 
local server, download the zip file and extract the 

asyncos/phoebe-my-upgrade.xml

 file to the root 

directory of the local server. To use the upgrade list for AsyncOS upgrades, enter the full URL for the 
XML file on the Edit Update Settings page (or use 

updateconfig

 in the CLI).

For more information about remote upgrades, see the Cisco IronPort Knowledge Base or contact your 
Cisco IronPort Support provider.

Note these differences when upgrading AsyncOS from a local server (Remote upgrade) as opposed to 
the Streaming upgrade method: 

The upgrading installs immediately while downloading. 

A banner appears for 10 seconds at the beginning of the upgrade process. While this banner appears, 
you have the option to press Control-C to exit the upgrade process before downloading starts. 

You can configure how the Security Management appliance downloads security services updates (such 
as time zone rules) and AsyncOS upgrades. For example, you can choose whether to download upgrades 
and updates dynamically from Cisco IronPort servers or from a local server onto which you have made 
the images available; configure the update interval; or disable automatic updates. 

AsyncOS periodically queries the update servers for new updates to all security service components 
except for new AsyncOS upgrades. To upgrade AsyncOS, you must manually prompt AsyncOS to query 
for available upgrades.

You can configure upgrade and updates settings in the GUI (see the following two sections) or using the 

updateconfig

 command in the CLI.