Cisco Cisco Content Security Management Appliance M1070 Mode D'Emploi

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Chapter 11      Common Administrative Tasks
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Cisco IronPort AsyncOS 7.2.0 for Security Management User Guide
OL-21768-01
Upgrading Clustered Systems
If you are upgrading clustered machines, see “Upgrading Machines in a Cluster” 
in the Centralized Management chapter in the Cisco IronPort AsyncOS for Email 
Advanced User Guide
.
Streaming Upgrade Overview
In Streaming upgrades, your Cisco IronPort appliance connects directly to the 
Cisco IronPort update servers to find and download upgrades:
Figure 11-3
Streaming Update Method
This method requires that your IronPort appliance contacts the IronPort Systems 
update servers directly from the network.
Remote Upgrade Overview
You can also download and host updates to AsyncOS locally from within your 
own network (Remote Upgrade) rather than obtaining updates directly from 
IronPort’s update servers (Streaming Upgrades). Using this feature, an encrypted 
update image downloaded via HTTP to any server in your network that has access 
to the Internet. If you choose to download the update image, you can then 
configure an internal HTTP server (an “update manager”) to host the AsyncOS 
images to your IronPort appliances.
Your Cisco IronPort Appliance
Cisco IronPort Systems, Inc. 
Update Servers
HTTP connection through firewall