NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | AUTHOR | COPYRIGHT | COLOPHON |
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OVS-TCPDUMP(8) Open vSwitch OVS-TCPDUMP(8)
ovs-tcpdump - Dump traffic from an Open vSwitch port using tcpdump
ovs-tcpdump -i <port> <tcpdump options>...
ovs-tcpdump creates switch mirror ports in the ovs-vswitchd daemon and executes tcpdump to listen against those ports. When the tcpdump instance exits, it then cleans up the mirror port it created. ovs-tcpdump will not allow multiple mirrors for the same port. It has some logic to parse the current configuration and prevent duplicate mirrors. The -i option may not appear multiple times. It is important to note that under Linux-based kernels, tap devices do not receive packets unless the specific tuntap device has been opened by an application. This requires CAP_NET_ADMIN privileges, so the ovs-tcpdump command must be run as a user with such permissions (this is usually a super-user).
• -h or --help Prints a brief help message to the console. • -V or --version Prints version information to the console. • --db-sock <socket> The Open vSwitch database socket connection string. The default is unix:<rundir>/db.sock. • --dump-cmd <command> The command to run instead of tcpdump. • -i or --interface The interface for which a mirror port should be created, and packets should be dumped. • --mirror-to The name of the interface which should be the destination of the mirrored packets. The default is mi<port>. • --span If specified, mirror all ports (optional).
ovs-appctl(8), ovs-vswitchd(8), ovs-pcap(1), ovs-tcpundump(1), tcpdump(8), wireshark(8).
The Open vSwitch Development Community
2016-2024, The Open vSwitch Development Community
This page is part of the Open vSwitch (a distributed virtual
multilayer switch) project. Information about the project can be
found at ⟨http://openvswitch.org/⟩. If you have a bug report for
this manual page, send it to [email protected]. This page was
obtained from the project's upstream Git repository
⟨https://github.com/openvswitch/ovs.git⟩ on 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-06-07.) If you discover any rendering
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(which is not part of the original manual page), send a mail to
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3.3.90 Jun 13, 2024 OVS-TCPDUMP(8)