Cisco Cisco Email Security Appliance C190 Mode D'Emploi
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User Guide for AsyncOS 10.0 for Cisco Email Security Appliances
Chapter 29 Using Email Security Monitor
Email Security Monitor Pages
The report also shows the volume of messages in the work queue over a specified time period, and it
shows the maximum messages in the work queue over the same time period. The graphical
representation of the maximum messages in the work queue also shows the work queue threshold level.
shows the maximum messages in the work queue over the same time period. The graphical
representation of the maximum messages in the work queue also shows the work queue threshold level.
Occasional spikes in the Workqueue graphs are normal and expected. If the messages in the work queue
remain higher than the configured threshold for a long duration, this may indicate a capacity issue. In
this scenario, consider tuning the threshold level or review the system configuration.
remain higher than the configured threshold for a long duration, this may indicate a capacity issue. In
this scenario, consider tuning the threshold level or review the system configuration.
For instructions to change the work queue threshold level, see
.
Tip
When reviewing the work queue page, you may want to measure the frequency of work queue backups,
and take note of work queue backups that exceed 10,000 messages.
and take note of work queue backups that exceed 10,000 messages.
System Capacity- Incoming Mail
The incoming mail page shows incoming connections, the total number of incoming messages, the
average message size, and the total incoming 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 incoming mail page to help track volume growth over time
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.
average message size, and the total incoming 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 incoming mail page to help track volume growth over time
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.
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.