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Utility Commands
597
ProSafe Managed Switch
no capture
Use this command to reset the capture mode to remote mode.
Format no capture
Mode
capture remote port
Use this command to configure file capture options. The command is persistent across a
reboot cycle.
Default
Format capture remote port <port-id>
Mode
no capture remote port
Use this command to reset the remote port to the default (2002).
Format no capture report port
Mode
Parameter Description
In capture file mode, the captured packets are stored in a file on NVRAM. The maximum file
size defaults to 524288 bytes. The switch can transfer the file to a TFTP server via TFTP, SFTP,
SCP via CLI, Web and SNMP. The file is formatted in pcap format, is named
cpuPktCapture.pcap, and can be examined using network analyzer tools such as
Wireshark
®
by Ethereal
®
. Starting a file capture automatically terminates any remote capture
sessions and line capturing. After the packet capture is activated, the capture proceeds until the
capture file reaches its maximum size, or until the capture is stopped manually using the CLI
command capture stop.
In remote capture mode, the captured packets are redirected in real time to an external PC
running the Wireshark tool for Microsoft
®
Windows
®
. A packet capture server runs on the switch
side and sends the captured packets via a TCP connection to the Wireshark tool. The remote
capture can be enabled or disabled using the CLI. There should be a Windows PC with the
Wireshark tool to display the captured file. When using the remote capture mode, the switch
does not store any captured data locally on its file system. You can configure the IP port
number for connecting Wireshark to the switch. The default port number is 2002. If a firewall is
installed between the Wireshark PC and the switch, then these ports must be allowed to pass
through the firewall. You must configure the firewall to allow the Wireshark PC to initiate TCP
connections to the switch. If the socket connection to Wireshark has been established, then the
captured CPU packets are written to the data socket. Wireshark receives the packets and
processes it to display. This continues until the session is terminated by either end. Starting a
remote capture session automatically terminates the file capture and line capturing.
In capture line mode, the captured packets are saved in real time mode into the RAM and can
be displayed on the CLI. Starting a line capture automatically terminates any remote capture
session and capturing into a file.
Global Config
2002
Global Config
Global Config