Chapter 18 Diagnostics

Table 92 Maintenance > Diagnostics > Packet Capture (continued)

LABEL

DESCRIPTION

File Size

Specify a maximum size limit in kilobytes for the total combined

 

size of all the capture files on the NWA3000-N series AP, including

 

any existing capture files and any new capture files you generate.

 

Note: If you have existing capture files you may need to set

 

this size larger or delete existing capture files.

 

The valid range is 1 to 10000. The NWA3000-N series AP stops the

 

capture and generates the capture file when either the file reaches

 

this size or the time period specified in the Duration field expires.

 

 

Duration

Set a time limit in seconds for the capture. The NWA3000-N series

 

AP stops the capture and generates the capture file when either

 

this period of time has passed or the file reaches the size specified

 

in the File Size field. 0 means there is no time limit.

 

 

File Suffix

Specify text to add to the end of the file name (before the dot and

 

filename extension) to help you identify the packet capture files.

 

Modifying the file suffix also avoids making new capture files that

 

overwrite existing files of the same name.

 

The file name format is “interface name-file suffix.cap”, for

 

example “lan-packet-capture.cap”.

 

 

Number Of Bytes To

Specify the maximum number of bytes to capture per packet. The

Capture (Per Packet)

NWA3000-N series AP automatically truncates packets that exceed

 

this size. As a result, when you view the packet capture files in a

 

packet analyzer, the actual size of the packets may be larger than

 

the size of captured packets.

 

 

Capture

Click this button to have the NWA3000-N series AP capture packets

 

according to the settings configured in this screen.

 

You can configure the NWA3000-N series AP while a packet capture

 

is in progress although you cannot modify the packet capture

 

settings.

 

The NWA3000-N series AP’s throughput or performance may be

 

affected while a packet capture is in progress.

 

After the NWA3000-N series AP finishes the capture it saves a

 

separate capture file for each selected interface. The total number

 

of packet capture files that you can save depends on the file sizes

 

and the available flash storage space. Once the flash storage space

 

is full, adding more packet captures will fail.

 

 

Stop

Click this button to stop a currently running packet capture and

 

generate a separate capture file for each selected interface.

 

 

Reset

Click this button to return the screen to its last-saved settings.

18.3.1 Packet Capture Files

Click Maintenance > Diagnostics > Packet Capture > Files to open the packet capture files screen. This screen lists the files of packet captures the NWA3000-N series AP has performed. You can download the files to your

256

 

NWA3000-N Series User’s Guide