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