[ovirt-users] Falsely detected network device status

Hi All, I've encountered a network device that is being falsely detected as down. On adding a new network to a 3.4 hosted engine, one of the two hosts is displaying a component interface as down with the webadmin console. Ethtool confirms the link status as up and connectivity through the corresponding interfaces of the network has been proven. Shortly after adding the network I noted that the node with the falsely detected iface status, was set Non-Operational. All running VM's evacuated. The engine.log showing... INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-33) [2daa7788] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: Host hosted_engine_2 moved to Non-Operational state because interfaces 'eth1' are down but are needed by networks 'EVD_DMZ' in the current cluster 2 other interfaces for ovirtmgmt and another VM network on this same host have long functioned perfectly well. When assigning the network to the interface I see the following in messages... Oct 1 20:57:39 lx004 kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready Oct 1 20:57:39 lx004 kernel: 8021q: adding VLAN 0 to HW filter on device eth1 Oct 1 20:57:39 lx004 kernel: device eth1 entered promiscuous mode Oct 1 20:57:40 lx004 kernel: igb: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX Oct 1 20:57:40 lx004 kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready Oct 1 20:57:40 lx004 kernel: EVD_DMZ: port 1(eth1) entering forwarding state Looks as it should to me, brctl also shows the bridge is as it should be. # brctl show bridge name bridge id STP enabled interfaces ;vdsmdummy; 8000.000000000000 no EVD_DMZ 8000.0025901abc49 no eth1 PXE 8000.0007e9a5a197 no eth3 ovirtmgmt 8000.0025901abc48 no eth0 Not able to see anything relevant in vdsm.log vdsClient -s 0 getVdsStats does not list the new network, but instead lists an older deleted one. Has any one encountered an event like this or have any clues on how this might be failing?