ZyXEL Communications NWA3000-N User Manual

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Chapter 18 Diagnostics
NWA3000-N Series User’s Guide
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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 
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 
Capture (Per Packet)
Specify the maximum number of bytes to capture per packet. The 
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. 
Table 92   Maintenance > Diagnostics > Packet Capture (continued)
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