[  514.445775] bond0: (slave eth0): making interface the new active one
[  514.445866] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.609412] bond0: (slave eth0): Releasing backup interface
[  518.681447] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.842889] bond0: (slave eth0): Releasing backup interface
[  522.867290] bond0 (unregistering): Released all slaves