Dear all,
I am working with experimental devices which allow me to create a point
to point link a pair of such devices and establish.
The developed driver for this device allow me to list the device as a
network interface in a Ubunty machine through the "ifconfig" command.
However, when performing a ping operation I have realized that the RX
packets and TX packets statistics of such interface are not updated and
keep to 0.
I realized about that when adding this interface as a port of an OVS
switch 2.5.0.
When executing the instruction "sudo ovs-ofctl -O OpenFlow13 dump-ports
br0 [port]" for this port, everything was set to 0, although through
wireshark I check that a generated traffic was going through this interface.
OFPST_PORT reply (OF1.3) (xid=0x2): 1 ports
port 3: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
tx pkts=0, bytes=0, drop=0, errs=0, coll=0
duration=1589.855s
However, for other interface (a normal ethernet interface), the result
for the same instruction was different:
OFPST_PORT reply (OF1.3) (xid=0x2): 1 ports
port 4: rx pkts=464, bytes=45898, drop=2, errs=0, frame=0, over=0, crc=0
tx pkts=493, bytes=61575, drop=0, errs=0, coll=0
duration=1667.484s
I made a double check making an "ifconfig" request of these interfaces
and the values between "ifconfig" and "sudo ovs-ofctl -O OpenFlow13
dump-ports br0 [port]" coincides. Then, my
question is: Is reading ovs-ofctl dump-ports instructions the same
values as ifconfig? At a first glimpse, it looks so. Could you confirm this?
Thank you very much for your time and attention,
With kind regards,
Jorge Baranda
--
Jorge Baranda
Research Engineer, MSc
jorge.bara...@cttc.es
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
Av. Carl Friedrich Gauss, 7
08860 Castelldefels, Barcelona (Spain)
Tel: +34 93 645 29 00 Ext: 2171
Fax. +34 93 645 29 01
www.cttc.es
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