Cisco Cisco Email Security Appliance C160 用户指南
15-3
Cisco IronPort AsyncOS 7.6 for Email Configuration Guide
OL-25136-01
Chapter 15 System Administration
Upgrading AsyncOS from the CLI
Issue the
upgrade
command to show a list of available upgrades. Select the desired upgrade from the list
to install it. You may be asked to confirm messages or read and agree to license agreements, etc. You can
choose whether or not to save the current configuration to the
choose whether or not to save the current configuration to the
configuration
directory. If so, you can
choose whether or not to mask the passwords in the configuration file. You can also choose to email a
copy of the configuration files.
copy of the configuration files.
Note
You cannot load a configuration file with masked passwords using the
loadconfig
command.
When upgrading, do not pause for long amounts of time at the various prompts. If the TCP session should
happen to time out during the download, your upgrade may fail.
happen to time out during the download, your upgrade may fail.
Differences from Traditional Upgrading Method
Please note these differences when upgrading AsyncOS from a local server as opposed to the traditional
method:
method:
Step 1
The upgrading installs immediately while downloading.
A banner displays for 10 seconds at the beginning of the upgrade process. While this banner is displayed,
you have the option to type Control-C to exit the upgrade process before downloading starts.
you have the option to type Control-C to exit the upgrade process before downloading starts.
Configuring AsyncOS Upgrade Settings
You can configure how the Email Security appliance downloads AsyncOS upgrades. Cisco IronPort
provides two methods (or “sources”) for upgrading: streaming upgrades and remote upgrades.
provides two methods (or “sources”) for upgrading: streaming upgrades and remote upgrades.
With streaming upgrades, your Cisco IronPort appliances download the AsyncOS upgrades directly from
the Cisco IronPort update servers. Each Cisco IronPort appliance downloads the upgrade separately. For
more information, see
the Cisco IronPort update servers. Each Cisco IronPort appliance downloads the upgrade separately. For
more information, see
For remote upgrades, your Cisco IronPort appliances download the AsyncOS upgrades from a server
within your network. You only download the upgrade image from Cisco IronPort one time, and then
serve it to your Cisco IronPort appliances. For more information, see
within your network. You only download the upgrade image from Cisco IronPort one time, and then
serve it to your Cisco IronPort appliances. For more information, see
.
Use the Security Services > Service Updates page to switch between the two upgrading methods
(streaming is the default), as well as configure the interface to use to download the upgrade and proxy
server settings. For more information, see
(streaming is the default), as well as configure the interface to use to download the upgrade and proxy
server settings. For more information, see
Optionally, use the
updateconfig
command in the CLI.