Chapter 32 Diagnostics
NXC Series User’s Guide
407
Save data to onboard
storage only
Select this to have the NXC only store packet capture entries on the NXC. The available
storage size is displayed as well.
Note: The NXC reserves some onboard storage space as a buffer.
Save data to USB
storage
Select this to have the NXC store packet capture entries only on a USB storage device
connected to the NXC.
Status:
Unused - the connected USB storage device was manually unmounted by using the
Remove Now button or for some reason the NXC cannot mount it.
none - no USB storage device is connected.
available - you can have the NXC use the USB storage device. The available storage
capacity also displays.
service deactivated - the USB storage feature is disabled and the NXC cannot use a
connected USB device to store the system log and other diagnostic information.
Note: The NXC reserves some USB storage space as a buffer.
Captured Packet Files When saving packet captures only to the NXC’s onboard storage, specify a maximum
limit in megabytes for the total combined size of all the capture files on the NXC.
When saving packet captures to a connected USB storage device, specify a maximum
limit in megabytes for each capture file.
Note: If you have existing capture files and have not selected the
Continuously capture and overwrite old ones option, you may need to
set this size larger or delete existing capture files.
The valid range depends on the available onboard/USB storage size. The NXC 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.
Split threshold Specify a maximum size limit in megabytes for individual packet capture files. After a
packet capture file reaches this size, the NXC starts another packet capture file.
Duration Set a time limit in seconds for the capture. The NXC 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 Captured Packet Files 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 “vlan2-packet-
capture.cap”.
Number Of Bytes To
Capture (Per Packet)
Specify the maximum number of bytes to capture per packet. The NXC 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.
Table 198 Maintenance > Diagnostics > Packet Capture > Capture on Controller (continued)
LABEL DESCRIPTION
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