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Cisco 4700 Series Application Control Engine Appliance Administration Guide
OL-11157-01
Chapter 5 Managing the ACE Software
Capturing and Copying Packet Information
The ACE does not automatically save the packet capture to a file. To copy the
capture buffer information as a file in Flash memory or to a remote server, use the
copy capture command (see the “Copying Capture Buffer Information” section).
The syntax for this command is:
capture b
uffer_name {{all | {interface vlan number}} access-list name
[bufsize buf_size [circular-buffer]]} | remove | start | stop
The keywords, arguments, and options are:
• buffer_name—Name of the packet capture buffer. The buffer_name argument
associates the packet capture with a name. Specify a text string from 1 to 80
alphanumeric characters.
• all—Specifies capture packets for all input interfaces.
Note To capture application acceleration and optimization traffic bound for the
optional Cisco AVS 3180A Management Station interface, use the all
keyword. This keyword captures all the traffic on all interfaces. You can
then transfer the packet capture file to a remote machine to be scanned for
traffic that is specific to the Management Station interface.
• interface—Specifies the interface from which to capture packets.
• vlan number—Specifies the VLAN identifier associated with the specified
input interface.
• access-list name—Selects packets based on a specific access list
identification. A packet must pass the access list filters before the packet is
stored in the capture buffer. Specify a previously created access list identifier.
Enter an unquoted text string with a maximum of 64 alphanumeric characters.
Note Ensure that the access list is for an input interface. If you configure the
packet capture on the output interface, the ACE will fail to match any
packets.
• bufsize buf_size—(Optional) Specifies the buffer size, in kilobytes (KB),
used to store the packet capture. The range is from 1 to 5000 KB. The default
is 64 kilobytes.
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