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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Kunpeng,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">You can check the bridge and openflows by the following commands:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-vsctl show<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-ofctl dump-flows br-int<a name="_MailEndCompose"><o:p></o:p></a></span></p>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">ovs-ofctl dump-flows br-phy0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">The virtual network used by VMs is based on those openflows. And restarting ovs-vswitchd can’t reinstall the openflows. That’s why when the ovs-vswitchd
restart, you will lose the connections to VMs.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">I think we need to figure out why ovs-vswitchd is restarted when you restart the VM. Could you please check the below logs to see why ovs-vswitchd
is restarted?<br>
/var/log/openvswitch/ovs-vswitchd.log<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">/var/log/syslog<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">neutron log (the log file is specified in /etc/neutron/neutron.conf)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Xu, Chenjie<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><a name="_____replyseparator"></a><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
</span><span style="font-size:11.0pt">张鲲鹏</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> [mailto:zhang.kunpeng@99cloud.net]
<br>
<b>Sent:</b> Thursday, July 18, 2019 7:09 PM<br>
<b>To:</b> Xu, Chenjie <chenjie.xu@intel.com><br>
<b>Cc:</b> starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> Re: [Starlingx-discuss] [Starlingx-disscuss][ovs-dpdk] Reboot instance with physical pci-passthrough NIC causes OVS restart<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I also find that when the ovs-vswitchd is restarted, I will lose the connections to VMs.<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Before restart ovs:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">controller-0:/home/wrsroot# ip a</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">1: lo: <LOOPBACK,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.0.0.1/8 scope host lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.3/24 brd 127.168.204.255 scope host lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 169.254.202.2/24 scope global lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.2/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.5/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.6/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.152/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 ::1/128 scope host</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">3: enp59s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:01:21 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">4: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:72:fb:63 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 172.16.180.154/24 brd 172.16.180.255 scope global eno1</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::4ed9:8fff:fe72:fb63/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">5: eno2: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:72:fb:64 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">6: enp94s0f0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:5e:ab:88 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">7: enp94s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:5e:ab:89 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">8: enp175s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:80:60 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::faf2:1eff:fe64:8060/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">9: enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:80:61 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::faf2:1eff:fe64:8061/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">10: ovs-netdev: <BROADCAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 62:34:73:47:50:be brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">13: br-int: <BROADCAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether c6:91:5d:27:b4:43 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">16: br-phy0: <BROADCAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:01:20 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::faf2:1eff:fe64:120/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">17: lldp16ba3755-27: <BROADCAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 7e:3a:87:a3:98:03 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::7c3a:87ff:fea3:9803/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">After:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">controller-0:/home/wrsroot# systemctl restart ovs-vswitchd</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">controller-0:/home/wrsroot# ip a</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">1: lo: <LOOPBACK,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.0.0.1/8 scope host lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.3/24 brd 127.168.204.255 scope host lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 169.254.202.2/24 scope global lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.2/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.5/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.6/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 127.168.204.152/24 scope host secondary lo</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 ::1/128 scope host</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">3: enp59s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:01:21 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">4: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:72:fb:63 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet 172.16.180.154/24 brd 172.16.180.255 scope global eno1</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::4ed9:8fff:fe72:fb63/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">5: eno2: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:72:fb:64 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">6: enp94s0f0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:5e:ab:88 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">7: enp94s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 4c:d9:8f:5e:ab:89 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">8: enp175s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:80:60 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::faf2:1eff:fe64:8060/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">9: enp175s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:80:61 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::faf2:1eff:fe64:8061/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">10: ovs-netdev: <BROADCAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 62:34:73:47:50:be brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">13: br-int: <BROADCAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether c6:91:5d:27:b4:43 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">16: br-phy0: <BROADCAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether f8:f2:1e:64:01:20 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::faf2:1eff:fe64:120/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">17: lldp16ba3755-27: <BROADCAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 7e:3a:87:a3:98:03 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> inet6 fe80::7c3a:87ff:fea3:9803/64 scope link</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> valid_lft forever preferred_lft forever</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">20: tapfb74713e-cc: <BROADCAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 0e:2d:36:ee:2d:85 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt">21: tap1a965902-0b: <BROADCAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt"> link/ether 5e:f6:81:31:54:21 brd ff:ff:ff:ff:ff:ff</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">One of the VMs:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><img width="640" height="363" id="_x0034_55F63BD-E58E-4B30-96BC-7B3200C9230F" src="cid:image001.png@01D53E10.A2B5CD00"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span lang="EN-US">On Jul 18, 2019, at 18:09, </span>张鲲鹏<span lang="EN-US"> <<a href="mailto:zhang.kunpeng@99cloud.net">zhang.kunpeng@99cloud.net</a>> wrote:<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">Hi Xu,Chenjie<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">I have tried to create VM with 2 pci_passthrough network ports without DPDK, there was the same problem when I rebooted it.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Also, it was same when I reboot the VM with 2 SR-IOV VFs.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Do you have any ideas to debug this problem?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Thanks <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Kunpeng <o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US"><br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span lang="EN-US">On Jul 17, 2019, at 14:59, Xu, Chenjie <<a href="mailto:chenjie.xu@intel.com">chenjie.xu@intel.com</a>> wrote:<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Kunpeng,</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Maybe you can use SR-IOV and passthrough the VF which has similar performance to physical NIC<span class="apple-converted-space"> </span>to the VM.
And then you can use DPDK inside the VM with the VF.</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Sorry, I don’t have easy way to disable DPDK in stx1.0. The following command is used for stx2.0 which is still in progress:</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">system modify --vswitch_type none</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Best Regards,</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Xu, Chenjie</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<div>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span class="apple-converted-space"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></span><span style="font-size:11.0pt">张鲲鹏</span><span class="apple-converted-space"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">[<a href="mailto:zhang.kunpeng@99cloud.net">mailto:zhang.kunpeng@99cloud.net</a>]<span class="apple-converted-space"> </span><br>
<b>Sent:</b><span class="apple-converted-space"> </span>Tuesday, July 16, 2019 5:40 PM<br>
<b>To:</b><span class="apple-converted-space"> </span>Xu, Chenjie <<a href="mailto:chenjie.xu@intel.com">chenjie.xu@intel.com</a>><br>
<b>Cc:</b><span class="apple-converted-space"> </span><a href="mailto:starlingx-discuss@lists.starlingx.io">starlingx-discuss@lists.starlingx.io</a><br>
<b>Subject:</b><span class="apple-converted-space"> </span>Re: [Starlingx-discuss] [Starlingx-disscuss][ovs-dpdk] Reboot instance with physical pci-passthrough NIC causes OVS restart</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Hi Chenjie,<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">Well, I will try the network topology as you said. But passthrough NIC with DPDK is our customer</span>’<span lang="EN-US">s requirement.<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">And do you have some easy ways to disable dpdk of openvswitch in stx1.0? <o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">I had tried to execute </span>“<span lang="EN-US" style="color:#FF9D00">system modify --vswitch_type none</span>”<span lang="EN-US"> before
</span>“<span lang="EN-US" style="color:#FF9D00">system host-unlock controller-0</span><span lang="EN-US">", but it doesn</span>’<span lang="EN-US">t work well.<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">Thanks <o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">Kunpeng<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">On Jul 16, 2019, at 16:49, Xu, Chenjie <<a href="mailto:chenjie.xu@intel.com"><span style="color:purple">chenjie.xu@intel.com</span></a>> wrote:<o:p></o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
</div>
<div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Kunpeng,</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">When you reboot the VM with two physical pci-passthrough NICs, ovs-vswtichd is restarted and the interfaces and bridges are down. The virtual networks
used by the VMs are based on these interfaces and bridges. So other VMs will lost connections.</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Typically you should not pass through a PCI device which is bound to DPDK to the VM. Are the 2 network ports which is used to passthrough to the
VM bound to DPDK? If so, could you please try OVS-DPDK with the following network topology:</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">2 network port without DPDK > VM</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">2 network port with DPDK > Data Network</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">1 network port without DPDK > OAM</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Best Regards,</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Xu, Chenjie</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</div>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span class="apple-converted-space"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></span><span style="font-size:11.0pt">张鲲鹏</span><span class="apple-converted-space"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">[<a href="mailto:zhang.kunpeng@99cloud.net"><span style="color:purple">mailto:zhang.kunpeng@99cloud.net</span></a>]<span class="apple-converted-space"> </span><br>
<b>Sent:</b><span class="apple-converted-space"> </span>Tuesday, July 16, 2019 3:54 PM<br>
<b>To:</b><span class="apple-converted-space"> </span><a href="mailto:starlingx-discuss@lists.starlingx.io"><span style="color:purple">starlingx-discuss@lists.starlingx.io</span></a><br>
<b>Subject:</b><span class="apple-converted-space"> </span>[Starlingx-discuss] [Starlingx-disscuss][ovs-dpdk] Reboot instance with physical pci-passthrough NIC causes OVS restart</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hi guys,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Recently I got a strange problem in StarlingX. When I reboot one VM with two physical pci-passthrough NICs, then all of VMs cannot be connected. I lost connections with all VMs and also the VMs lost each others. <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Below is the StarlingX environment.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">1. stx1.0 version, bootimage[1] <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">2. Simplex deployment<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">3. 5 Network ports. Only one don</span>’<span lang="EN-US">t support DPDK</span>，<span lang="EN-US">and it is used to OAM Network. In the rest, two are used to data network, and another two are used to passthrough to
a VM.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">4. The VM was attached two more virtual networks. I have tested the case of attaching one virtual net, it was no problem. <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">When I reboot the VM, something were happened. The interfaces and bridges were down, all the virtual dhcp services were down and ovs-vswitchd was restarted. But when I up the interfaces and dhcp services and reboot the
other VMs, I have got the connections with them again.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">It</span>’<span lang="EN-US">s ok when to reboot the VM without physical NIC. We think it may be caused by ovs-dpdk, so we stop to use ovs-dpdk and start the ovs manually, the problem was gone.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">I cannot understand the problem, anybody could give me some comments for it? Thanks a lot.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">[1] <a href="http://mirror.starlingx.cengn.ca/mirror/starlingx/r2018.10/centos/2018.10.0/outputs/iso/bootimage.iso"><span style="color:purple">http://mirror.starlingx.cengn.ca/mirror/starlingx/r2018.10/centos/2018.10.0/outputs/iso/bootimage.iso</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Kunpeng<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Menlo-Regular",serif">_______________________________________________<br>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">_______________________________________________<br>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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