Cisco Cisco Email Security Appliance C670 Release Notes
Installation Notes
12
Release Notes for Cisco IronPort AsyncOS 7.1.2 for Email
OL-22161-03
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.
AsyncOS upgrade versions.
Step 7
Click the Begin Upgrade button and your upgrade will begin. Answer the
questions as they appear.
questions as they appear.
Step 8
When the upgrade is complete, click the Reboot Now button to reboot your
IronPort appliance.
IronPort appliance.
Step 9
Resume all listeners.
Performance Advisory
RSA Email DLP - Enabling RSA Email DLP for outbound traffic on an appliance
that is also running anti-spam and anti-virus scanning on inbound traffic can cause
a performance decrease of less than 10%. Appliances that are only running
outbound messages and are not running anti-spam and anti-virus may experience
a significant performance decline.
that is also running anti-spam and anti-virus scanning on inbound traffic can cause
a performance decrease of less than 10%. Appliances that are only running
outbound messages and are not running anti-spam and anti-virus may experience
a significant performance decline.
DomainKeys - DomainKeys signing outgoing email can cause a decrease in the
message throughput capacity. Using smaller signing keys (512 byte or 768 byte)
can mitigate this.
message throughput capacity. Using smaller signing keys (512 byte or 768 byte)
can mitigate this.
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.
Scanning Engine (CASE) to collect data to power IronPort Information Services.
In some configurations customers may experience a moderate performance
decline.
Virus Outbreak Filters - Virus Outbreak Filters now 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.
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.
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.
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.