[main] INFO org.opendaylight.netconf.common.impl.DefaultNetconfTimer - NETCONF timer started [disconnect-task-thread] WARN org.opendaylight.netconf.client.mdsal.NetconfDeviceCommunicator - RemoteDeviceId[name=test-device, address=localhost/:22]: Session terminated Session closed [disconnect-task-thread] WARN org.opendaylight.netconf.client.mdsal.NetconfDeviceCommunicator - It's curious that no one to close the session but tearDown is called! [netconf-timer-10] WARN org.opendaylight.netconf.client.mdsal.NetconfDeviceCommunicator - RemoteDeviceId[name=test-device, address=localhost/:22]: Session is disconnected, failing RPC request [netconf-timer-10] WARN org.opendaylight.netconf.client.mdsal.spi.KeepaliveSalFacade - RemoteDeviceId[name=test, address=localhost/127.0.0.1:22]: Keepalive RPC failed with error: [RpcError [message=The netconf session to test-device is disconnected, severity=ERROR, errorType=TRANSPORT, tag=operation-failed, applicationTag=null, info=null, cause=null]]