Руководство Пользователя для Cisco Cisco Email Security Appliance C170
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User Guide for AsyncOS 9.8 for Cisco Email Security Appliances
Chapter 28 Using Email Security Monitor
Email Security Monitor Pages
and plan for system capacity. You might also want to compare the Incoming Mail data with the Sender
Profile data to view the trends in volumes of emails that are being sent from specific domains to your
network.
Profile data to view the trends in volumes of emails that are being sent from specific domains to your
network.
Note
An increased number of incoming connections may not necessarily affect system load.
System Capacity-Outgoing Mail
The outgoing mail page shows outgoing connections, the total number of outgoing messages, the average
message size, and the total outgoing message size. You can limit the results to the time range that you
specify. It is important to have an understanding of the trends of normal message volume and spikes in
your environment. You can use the outgoing mail page to help track volume growth over time and plan
for system capacity. You might also want to compare the Outgoing Mail data with the Outgoing
Destinations data to view the trends in volumes of emails that are being sent from specific domains or
IP addresses.
message size, and the total outgoing message size. You can limit the results to the time range that you
specify. It is important to have an understanding of the trends of normal message volume and spikes in
your environment. You can use the outgoing mail page to help track volume growth over time and plan
for system capacity. You might also want to compare the Outgoing Mail data with the Outgoing
Destinations data to view the trends in volumes of emails that are being sent from specific domains or
IP addresses.
System Capacity-System Load
The system load report shows the following:
•
•
•
Overall CPU Usage
Email Security appliance is optimized to use idle CPU resources to improve message throughput. High
CPU usage may not indicate a system capacity problem. If the high CPU usage is coupled with
consistent, high-volume memory page swapping, you may have a capacity problem.
CPU usage may not indicate a system capacity problem. If the high CPU usage is coupled with
consistent, high-volume memory page swapping, you may have a capacity problem.
Note
This graph also shows the threshold level for CPU usage. If you want to change the threshold level, use
the System Administration > System Health page in web interface or
the System Administration > System Health page in web interface or
healthconfig
command in CLI.
See
.
This page also shows a graph that displays the amount of CPU used by different functions, including
mail processing, spam and virus engines, reporting, and quarantines. The CPU-by-function graph is a
good indicator of which areas of the product use the most resources on your system. If you need to
optimize your appliance, this graph can help you determine which functions may need to be tuned or
disabled.
mail processing, spam and virus engines, reporting, and quarantines. The CPU-by-function graph is a
good indicator of which areas of the product use the most resources on your system. If you need to
optimize your appliance, this graph can help you determine which functions may need to be tuned or
disabled.
Memory Page Swapping
The memory page swapping graph shows how frequently the system must page to disk. This graph also
shows the threshold level for memory page swapping. If you want to change the threshold level, use the
System Administration > System Health page in web interface or
shows the threshold level for memory page swapping. If you want to change the threshold level, use the
System Administration > System Health page in web interface or
healthconfig
command in CLI. See