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<p>Hello all,</p>
<p>after a misconfigured setup of a couple of VMs, the live
migration of those VMs failed. <br>
</p>
<p><br>
</p>
<p>Now we have some "No such device" listings in openvswitch for
those VMs on some compute nodes.<br>
</p>
<p><br>
</p>
<p><tt>(openvswitch-vswitchd)[root@ewos1-com1-prod /]# ovs-vsctl
show</tt><tt><br>
</tt><tt>b5034213-9b15-45f5-8ce0-edcf32d16c57</tt><tt><br>
</tt><tt> Manager "ptcp:6640:127.0.0.1"</tt><tt><br>
</tt><tt> is_connected: true</tt><tt><br>
</tt><tt> Bridge br-int</tt><tt><br>
</tt><tt> Controller "tcp:127.0.0.1:6633"</tt><tt><br>
</tt><tt> is_connected: true</tt><tt><br>
</tt><tt> fail_mode: secure</tt><tt><br>
</tt><tt> Port "qvo35487c68-23"</tt><tt><br>
</tt><tt> tag: 5</tt><tt><br>
</tt><tt> Interface "qvo35487c68-23"</tt><tt><br>
</tt><b><tt> Port "qvo5b1aac7e-d4"</tt></b><b><tt><br>
</tt></b><b><tt> Interface "qvo5b1aac7e-d4"</tt></b><b><tt><br>
</tt></b><b><tt> error: "could not open network
device qvo5b1aac7e-d4 (No such device)"</tt></b><b><tt><br>
</tt></b><b><tt> Port "qvod9cdff27-9c"</tt></b><b><tt><br>
</tt></b><b><tt> Interface "qvod9cdff27-9c"</tt></b><b><tt><br>
</tt></b><b><tt> error: "could not open network
device qvod9cdff27-9c (No such device)"</tt></b><tt><br>
</tt><tt> Port "qvoed2da602-02"</tt><tt><br>
</tt><tt> tag: 32</tt><tt><br>
</tt><tt> Interface "qvoed2da602-02"</tt><tt><br>
</tt><tt> Port "qvoa63378f6-d9"</tt></p>
<p><br>
</p>
<p>for example qvo5b1aac7e-d4</p>
<p><br>
</p>
<p><tt>(openvswitch-vswitchd)[root@ewos1-com1-prod /]# ovs-vsctl
list Interface ca7e771b-88a0-4cf6-b9be-6be77816baff</tt><tt><br>
</tt><tt>_uuid :
ca7e771b-88a0-4cf6-b9be-6be77816baff</tt><tt><br>
</tt><tt>admin_state : []</tt><tt><br>
</tt><tt>bfd : {}</tt><tt><br>
</tt><tt>bfd_status : {}</tt><tt><br>
</tt><tt>cfm_fault : []</tt><tt><br>
</tt><tt>cfm_fault_status : []</tt><tt><br>
</tt><tt>cfm_flap_count : []</tt><tt><br>
</tt><tt>cfm_health : []</tt><tt><br>
</tt><tt>cfm_mpid : []</tt><tt><br>
</tt><tt>cfm_remote_mpids : []</tt><tt><br>
</tt><tt>cfm_remote_opstate : []</tt><tt><br>
</tt><tt>duplex : []</tt><tt><br>
</tt><tt>error : "could not open network device
qvo5b1aac7e-d4 (No such device)"</tt><tt><br>
</tt><tt>external_ids : {attached-mac="fa:16:3e:4b:f0:4b",
iface-id="5b1aac7e-d45b-4a40-8f30-1275b07ffc0b",
iface-status=active,
vm-uuid="c3fbcc6b-2dfe-4aa1-82bd-522b161a37a9"}</tt><tt><br>
</tt><tt>ifindex : []</tt><tt><br>
</tt><tt>ingress_policing_burst: 0</tt><tt><br>
</tt><tt>ingress_policing_rate: 0</tt><tt><br>
</tt><tt>lacp_current : []</tt><tt><br>
</tt><tt>link_resets : []</tt><tt><br>
</tt><tt>link_speed : []</tt><tt><br>
</tt><tt>link_state : []</tt><tt><br>
</tt><tt>lldp : {}</tt><tt><br>
</tt><tt>mac : []</tt><tt><br>
</tt><tt>mac_in_use : []</tt><tt><br>
</tt><tt>mtu : []</tt><tt><br>
</tt><tt>mtu_request : []</tt><tt><br>
</tt><tt>name : "qvo5b1aac7e-d4"</tt><tt><br>
</tt><tt>ofport : -1</tt><tt><br>
</tt><tt>ofport_request : []</tt><tt><br>
</tt><tt>options : {}</tt><tt><br>
</tt><tt>other_config : {}</tt><tt><br>
</tt><tt>statistics : {}</tt><tt><br>
</tt><tt>status : {}</tt><tt><br>
</tt><tt>type : ""</tt><br>
<br>
</p>
<p>there are no tap devices or bridge devices on the compute node,
but still the entry in openvswitch</p>
<p><br>
</p>
<p>root@computenode5:~# brctl show | grep 5b1aac7e<br>
root@computenode5:~#</p>
<p><br>
</p>
<p>Is that an issue? if yes, should we remove the ports manually or
reboot the compute nodes?</p>
<p><br>
</p>
<p>Could that lead to networking issues?<br>
</p>
<p>kind regards</p>
<p><br>
</p>
<p>Nicolas<br>
</p>
<p>...</p>
<p><br>
</p>
<pre class="moz-signature" cols="72">-- </pre>
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