NAME

       ovs-tcpdump - Dump traffic from an Open vSwitch port using tcpdump.

SYNOPSIS

       ovs-tcpdump -i port tcpdump options...

DESCRIPTION

       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).

OPTIONS

       -h
       --help Prints a brief help message to the console.

       -V
       --version
              Prints version information to the console.

       --db-sock
              The    Open    vSwitch    database    socket     connection     string.     The     default     is
              unix:/var/run/openvswitch/db.sock

       --dump-cmd
              The command to run instead of tcpdump.

       -i
       --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
              miINTERFACE

SEE ALSO

       ovs-appctl(8), ovs-vswitchd(8), ovs-pcap(1), ovs-tcpundump(1), tcpdump(8), wireshark(8).

Open vSwitch                                          2.9.8                                       ovs-tcpdump(8)