1ovs-tcpdump(8)                Open vSwitch Manual               ovs-tcpdump(8)
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NAME

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

9       ovs-tcpdump -i port tcpdump options...
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DESCRIPTION

12       ovs-tcpdump  creates switch mirror ports in the ovs-vswitchd daemon and
13       executes tcpdump to  listen  against  those  ports.  When  the  tcpdump
14       instance exits, it then cleans up the mirror port it created.
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16       ovs-tcpdump  will  not allow multiple mirrors for the same port. It has
17       some logic to parse the current  configuration  and  prevent  duplicate
18       mirrors.
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20       The -i option may not appear multiple times.
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22       It  is important to note that under Linux based kernels, tap devices do
23       not receive packets unless the specific tuntap device has  been  opened
24       by  an application. This requires CAP_NET_ADMIN privileges, so the ovs-
25       tcpdump command must be run as a user with such  permissions  (this  is
26       usually a super-user).
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OPTIONS

29       -h
30       --help Prints a brief help message to the console.
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32       -V
33       --version
34              Prints version information to the console.
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36       --db-sock
37              The  Open vSwitch database socket connection string. The default
38              is unix:/var/run/openvswitch/db.sock
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40       --dump-cmd
41              The command to run instead of tcpdump.
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43       -i
44       --interface
45              The interface for which a mirror port  should  be  created,  and
46              packets should be dumped.
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48       --mirror-to
49              The name of the interface which should be the destination of the
50              mirrored packets. The default is miINTERFACE
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SEE ALSO

53       ovs-appctl(8),  ovs-vswitchd(8),  ovs-pcap(1),  ovs-tcpundump(1),  tcp‐
54       dump(8), wireshark(8).
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58Open vSwitch                        2.10.0                      ovs-tcpdump(8)