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Diffstat (limited to 'Documentation/topics/dpdk/pdump.rst')
| -rw-r--r-- | Documentation/topics/dpdk/pdump.rst | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/Documentation/topics/dpdk/pdump.rst b/Documentation/topics/dpdk/pdump.rst index b4d8aa8e9..ce03b327a 100644 --- a/Documentation/topics/dpdk/pdump.rst +++ b/Documentation/topics/dpdk/pdump.rst @@ -47,8 +47,7 @@ To use pdump, simply launch OVS as usual, then navigate to the ``app/pdump`` directory in DPDK, ``make`` the application and run like so:: $ sudo ./build/app/dpdk-pdump -- \ - --pdump port=0,queue=0,rx-dev=/tmp/pkts.pcap \ - --server-socket-path=/usr/local/var/run/openvswitch + --pdump port=0,queue=0,rx-dev=/tmp/pkts.pcap The above command captures traffic received on queue 0 of port 0 and stores it in ``/tmp/pkts.pcap``. Other combinations of port numbers, queues numbers and @@ -56,11 +55,13 @@ pcap locations are of course also available to use. For example, to capture all packets that traverse port 0 in a single pcap file:: $ sudo ./build/app/dpdk-pdump -- \ - --pdump 'port=0,queue=*,rx-dev=/tmp/pkts.pcap,tx-dev=/tmp/pkts.pcap' \ - --server-socket-path=/usr/local/var/run/openvswitch + --pdump 'port=0,queue=*,rx-dev=/tmp/pkts.pcap,tx-dev=/tmp/pkts.pcap' -``server-socket-path`` must be set to the value of ``ovs_rundir()`` which -typically resolves to ``/usr/local/var/run/openvswitch``. +.. note:: + + ``XDG_RUNTIME_DIR`` environment variable might need to be adjusted to + OVS runtime directory (``/var/run/openvswitch`` in most cases) for + ``dpdk-pdump`` utility if OVS started by non-root user. Many tools are available to view the contents of the pcap file. Once example is tcpdump. Issue the following command to view the contents of ``pkts.pcap``:: |