> -----Original Message-----
> From: Ilya Maximets [mailto:[email protected]]
> Sent: Tuesday, April 4, 2017 12:07 AM
> To: [email protected]; Nadathur, Sundar
> <[email protected]>
> Subject: [ovs-dev] Traffic fails in vhost user port
>
> Hi Sundar.
> > The flows are configured as below:
> > # ovs-ofctl dump-flows br0
> > NXST_FLOW reply (xid=0x4):
> > cookie=0x0, duration=2833.612s, table=0, n_packets=0, n_bytes=0,
> > idle_age=2833, in_port=1 actions=output:5 cookie=0x2,
> > duration=2819.820s, table=0, n_packets=0, n_bytes=0, idle_age=2819,
> > in_port=5 actions=output:1
>
> I guess, your flow table configured in a wrong way.
> OpenFlow port of br0 is LOCAL, not 1.
> Try this:
>
> # ovs-ofctl del-flows br0
>
> # ovs-ofctl add-flow br0 in_port=5,actions=output:LOCAL # ovs-ofctl add-flow
> br0 in_port=LOCAL,actions=output:5
Thank you, Ilya. I did as you suggested, but the ping traffic from br0 (LOCAL)
is dropped by the output port 5:
# ovs-ofctl dump-flows br0
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=1922.876s, table=0, n_packets=0, n_bytes=0,
idle_age=1922, in_port=5 actions=LOCAL
cookie=0x0, duration=1915.458s, table=0, n_packets=6, n_bytes=252,
idle_age=116, in_port=LOCAL actions=output:5
# ovs-ofctl dump-ports br0 # <-- Drops in port 5
OFPST_PORT reply (xid=0x2): 2 ports
port 5: rx pkts=?, bytes=0, drop=0, errs=0, frame=?, over=?, crc=?
tx pkts=?, bytes=0, drop=5, errs=?, coll=?
port LOCAL: rx pkts=43, bytes=2118, drop=0, errs=0, frame=0, over=0, crc=0
tx pkts=0, bytes=0, drop=0, errs=0, coll=0
Wireshark shows that br0 sends out 3 ARP requests but there is no response.
> or
>
> # ovs-ofctl add-flow br0 actions=NORMAL
I tried this too after doing del-flows. The LOCAL port's MAC is learnt,
wireshark still shows br0 sending out ARP requests with no response.
BTW, 'ovs-vsctl list Interface' shows the vi1 (VM port, #5) is up (most fields
are blank):
_uuid : 30d1600a-ff7d-4bf5-9fdb-b0767af3611c
admin_state : up
. . .
link_speed : []
link_state : up
. . .
mac_in_use : "00:00:00:00:00:00"
mtu : 1500
mtu_request : []
name : "vi1"
. . .
statistics : {"rx_1024_to_1518_packets"=0, "rx_128_to_255_packets"=0,
"rx_1523_to_max_packets"=0, "rx_1_to_64_packets"=0, "rx_256_to_511_packets"=0,
"rx_512_to_1023_packets"=0, "rx_65_to_127_packets"=0, rx_bytes=0, rx_dropped=0,
rx_errors=0, tx_bytes=0, tx_dropped=8}
status : {}
type : dpdkvhostuser
Is there any way to do the equivalent of a tcpdump or wireshark on a vhost user
port?
Thanks,
Sundar
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