Cisco Cisco Email Security Appliance C170
10
Release Notes for AsyncOS 10.0 for Cisco Email Security Appliances
Installation and Upgrade Notes
Procedure
Use the following instructions to upgrade your Email Security appliance.
Step 1
Save the XML configuration file off the appliance.
Step 2
If you are using the Safelist/Blocklist feature, export the Safelist/Blocklist database off the appliance.
Step 3
Suspend all listeners.
Step 4
Wait for the queue to empty.
Step 5
From the System Administration tab, select the System Upgrade page.
Step 6
Click the Available Upgrades button. The page refreshes with a list of available AsyncOS upgrade
versions.
versions.
Step 7
Click the Begin Upgrade button and your upgrade will begin. Answer the questions as they appear.
Step 8
When the upgrade is complete, click the Reboot Now button to reboot your appliance.
Step 9
Resume all listeners.
What To Do Next
Review the
.
Performance Advisory
RSA Email DLP
•
Enabling RSA Email DLP for outbound messages on an appliance that is already having anti-spam
and anti-virus scanning running on inbound messages can cause a performance degradation of less
than 10%.
and anti-virus scanning running on inbound messages can cause a performance degradation of less
than 10%.
•
Enabling RSA Email DLP on an appliance that is only running outbound messages and is not
running anti-spam and anti-virus can cause higher performance degradation as compared to the
previous scenario.
running anti-spam and anti-virus can cause higher performance degradation as compared to the
previous scenario.
SBNP
SenderBase Network Participation now uses the Context Adaptive Scanning Engine (CASE) to collect
data to power IronPort Information Services. In some configurations customers may experience a
moderate performance decline.
data to power IronPort Information Services. In some configurations customers may experience a
moderate performance decline.
Outbreak Filters
Outbreak Filters uses the Context Adaptive Scanning Engine to determine the threat level of a message
and scores messages based on a combination of Adaptive Rules and Outbreak Rules. In some
configurations, you may experience a moderate performance decline.
and scores messages based on a combination of Adaptive Rules and Outbreak Rules. In some
configurations, you may experience a moderate performance decline.
IronPort Spam Quarantine
Enabling the IronPort Spam Quarantine on-box for a C-Series or X-Series appliance causes a minimal
reduction in system throughput for nominally loaded appliances. For appliances that are running near or
at peak throughput, the additional load from an active quarantine may cause a throughput reduction of
10-20%. If your system is at or near capacity, and you desire to use the IronPort Spam Quarantine,
consider migrating to a larger C-Series appliance or an M-Series appliance.
reduction in system throughput for nominally loaded appliances. For appliances that are running near or
at peak throughput, the additional load from an active quarantine may cause a throughput reduction of
10-20%. If your system is at or near capacity, and you desire to use the IronPort Spam Quarantine,
consider migrating to a larger C-Series appliance or an M-Series appliance.