Cisco Cisco Email Security Appliance C390 ユーザーガイド

 describes the packet capture settings you can configure.

Capture file size limit

The maximum file size for all packet capture 
files in megabytes.

Capture Duration

Choose how long to run the packet capture:

Run Capture Until File Size Limit 
Reached. The packet capture runs until 
the file size limit is reached.

Run Capture Until Time Elapsed 
Reaches. The packet capture runs until the 
configured time has passed. You can enter 
the time in seconds (

s

), minutes (

m

), or 

hours (

h

). If you enter the amount of time 

without specifying the units, AsyncOS 
uses seconds by default. This option is 
only available in the GUI.

The packet capture file is split into ten 
parts. If the file reaches the maximum 
size limit before the entire time has 
elapsed, the oldest part of the file is 
deleted (the data is discarded) and a 
new part starts with the current packet 
capture data. Only 1/10 of the packet 
capture file is discarded at a time.

Run Capture Indefinitely. The packet 
capture runs until you manually stop it.

If the file reaches the maximum size 
limit before you manually stop the 
packet capture, the oldest part of the 
file is deleted (the data is discarded) 
and a new part starts with the current 
packet capture data.

You can always manually stop any packet 
capture.