[  514.399402] bond0: (slave eth0): making interface the new active one
[  514.399461] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.622650] bond0: (slave eth0): Releasing backup interface
[  518.732802] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.901023] bond0: (slave eth0): Releasing backup interface
[  522.931916] bond0 (unregistering): Released all slaves