HPE FlexNetwork 7500 Series Network Management And Monitoring Command Reference page 418

capture-ring-buffer filesize kilobytes: Rotates the packet file when the maximum file size is
reached. The kilobytes argument sets the maximum file size. The value range is 1 to 65536
kilobytes.
capture-ring-buffer duration seconds: Rotates the packet file when the rotation interval expires.
The seconds argument sets the rotation interval. The value range is 1 to 2147483647 seconds.
capture-ring-buffer files numbers: Sets the maximum number of packet files for file rotation, in the
range of 2 to 64. If a file rotation occurs after this limit is reached, the capture deletes the oldest file
and creates a new file to store packet data. If you do not set a limit, the number of packet files is
unlimited. This option must be used with the autostop filesize kilobytes, capture-ring-buffer
filesize kilobytes, or capture-ring-buffer duration seconds option.
write filepath: Specifies the full path of the packet file to store captured packet data. The path must
be a case-sensitive string of up to 64 characters. The filename extension must be .pcap. You do not
need to create the file. If file rotation is disabled, the capture creates a packet file with the specified
file name. If file rotation is enabled, the capture automatically creates a packet file for each rotation,
and renames the file to include a sequence number and timestamp. The sequence number
increases by 1 for each file rotation. For example, set the file name to a.pcap. For the first rotation,
the capture will create a packet file named a_00001_20140211034151.pcap. For the second
rotation, the capture will create a packet file named a_00002_20140211034207.pcap. For more
information about setting a file path, see file system management in Fundamentals Configuration
Guide.
raw: Displays packet contents in hexadecimal notation. If you do not specify this keyword, the
capture displays packet data in a human-readable format.
verbose: Displays detailed information about captured packets.
brief: Displays brief information about captured packets.
Usage guidelines
The device displays captured packet data in real time.
•
If you specify the write filepath parameters without specifying the raw, brief, or verbose
keyword, this command displays the number of captured packets.
•
If you do not specify any one of the raw, brief, verbose, and write filepath parameters, this
command displays brief information about captured packets.
To stop the capture while it is capturing packets, press Ctrl+C.
Use Table 91
Table 91 Using the packet filter parameters
Purpose
Stop capturing
Rotate files
when you configure the options for stopping the capture or rotating the file.
Options
•
Stop based on the capturing
duration:
autostop duration seconds
•
Stop based on the number of
captured packets:
limit-captured-frames limit
•
Stop based on the number of file
rotations:
autostop files numbers
•
Stop based on the file size if file
rotation is disabled:
autostop filesize kilobytes
•
Rotate based on the file size:
capture-ring-buffer filesize
kilobytes
•
Rotate based on the rotation
interval:
Remarks
The packet capture stops if any one of
the limits for the stop options is
reached. The packet capture also
stops if the file system's limit on the
number of files has been reached.
The autostop filesize option does not
stop the capture if file rotation is
enabled by the autostop files,
capture-ring-buffer files, or
capture-ring-buffer filesize option.
The capture rotates the packet file
when any one of the limits for the
rotation options is reached.
If you specify the autostop filesize
option after the capture-ring-buffer
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