On Thu, Aug 6, 2020 at 4:05 AM Tony Liu <[email protected]> wrote:
>
> The drop is caused by flow change.
>
> When packet is dropped.
> ========
> recirc_id(0),tunnel(tun_id=0x19aca,src=10.6.30.92,dst=10.6.30.22,geneve({class=0x102,type=0x80,len=4,0x20003/0x7fffffff}),flags(-df+csum+key)),in_port(3),eth(src=fa:16:3e:df:1e:85,dst=00:00:00:00:00:00/01:00:00:00:00:00),eth_type(0x0800),ipv4(proto=1,frag=no),icmp(type=8/0xf8),
> packets:14, bytes:1372, used:0.846s, actions:drop
>
> recirc_id(0),in_port(12),eth(src=fa:16:3e:7d:bb:85,dst=fa:16:3e:df:1e:85),eth_type(0x0800),ipv4(src=
> 192.168.236.152/255.255.255.252,dst=10.6.40.9,proto=1,tos=0/0x3,ttl=64,frag=no),icmp(type=0),
> packets:6, bytes:588, used:8.983s, actions:drop
> ========
>
> When packet goes through.
> ========
> recirc_id(0),tunnel(tun_id=0x19aca,src=10.6.30.92,dst=10.6.30.22,geneve({class=0x102,type=0x80,len=4,0x20003/0x7fffffff}),flags(-df+csum+key)),in_port(3),eth(src=fa:16:3e:df:1e:85,dst=00:00:00:00:00:00/01:00:00:00:00:00),eth_type(0x0800),ipv4(proto=1,frag=no),icmp(type=8/0xf8),
> packets:3, bytes:294, used:0.104s, actions:12
>
> recirc_id(0),in_port(12),eth(src=fa:16:3e:7d:bb:85,dst=fa:16:3e:df:1e:85),eth_type(0x0800),ipv4(src=
> 192.168.236.152/255.255.255.252,dst=10.6.40.9,proto=1,tos=0/0x3,ttl=64,frag=no),icmp(type=0),
> packets:3, bytes:294, used:0.103s,
> actions:ct_clear,set(tunnel(tun_id=0x1a8ee,dst=10.6.30.92,ttl=64,tp_dst=6081,geneve({class=0x102,type=0x80,len=4,0x1000b}),flags(df|csum|key))),set(eth(src=fa:16:3e:75:b7:e5,dst=52:54:00:0c:ef:b9)),set(ipv4(ttl=63)),3
> ========
>
> Is that flow programmed by ovn-controller via ovs-vswitchd?
>
>
What version of OVN and OVS are you using ?
Can you share your OVN NB DB ?
If I understand correctly the packet is received from the patch port to
br-int on the gateway node and then tunnelled to the compute node right ?
And the packet is dropped on the compute node ?
If you could share your NB DB if it's fine with you and tell the
destination logical port, I can try it out locally.
Thanks
Numan
>
> Thanks!
>
> Tony
>
> > -----Original Message-----
> > From: discuss <[email protected]> On Behalf Of Tony
> > Liu
> > Sent: Wednesday, August 5, 2020 2:48 PM
> > To: [email protected]; [email protected]
> > Subject: [ovs-discuss] packet drop
> >
> > Hi,
> >
> > I am running ping from external to VM via OVN gateway.
> > On the compute node, ICMP request packet is consistently coming into
> > interface "ovn-gatewa-1". But there is about 10 out of 25 packet loss on
> > tap interface. It's like the switch pauses 10s after every 15s.
> >
> > Has anyone experiences such issue?
> > Any advice how to look into it?
> >
> > ========
> > 21fed09f-909e-4efc-b117-f5d5fcb636c9
> > Bridge br-int
> > fail_mode: secure
> > datapath_type: system
> > Port "ovn-gatewa-0"
> > Interface "ovn-gatewa-0"
> > type: geneve
> > options: {csum="true", key=flow, remote_ip="10.6.30.91"}
> > bfd_status: {diagnostic="No Diagnostic", flap_count="1",
> > forwarding="true", remote_diagnostic="No Diagnostic", remote_state=up,
> > state=up}
> > Port "tap2588bb4e-35"
> > Interface "tap2588bb4e-35"
> > Port "ovn-gatewa-1"
> > Interface "ovn-gatewa-1"
> > type: geneve
> > options: {csum="true", key=flow, remote_ip="10.6.30.92"}
> > bfd_status: {diagnostic="No Diagnostic", flap_count="1",
> > forwarding="true", remote_diagnostic="No Diagnostic", remote_state=up,
> > state=up}
> > Port "tap37f6b2d7-cc"
> > Interface "tap37f6b2d7-cc"
> > Port "tap2c4b3b0f-8b"
> > Interface "tap2c4b3b0f-8b"
> > Port "tap23245491-a4"
> > Interface "tap23245491-a4"
> > Port "tap51660269-2c"
> > Interface "tap51660269-2c"
> > Port "tap276cd1ef-e1"
> > Interface "tap276cd1ef-e1"
> > Port "tap138526d3-b3"
> > Interface "tap138526d3-b3"
> > Port "tapd1ae48a1-2d"
> > Interface "tapd1ae48a1-2d"
> > Port br-int
> > Interface br-int
> > type: internal
> > Port "tapdd08f476-94"
> > Interface "tapdd08f476-94"
> > ========
> >
> >
> > Thanks!
> >
> > Tony
> >
> > _______________________________________________
> > discuss mailing list
> > [email protected]
> > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
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>
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