[  518.508821] bond0: (slave eth0): making interface the new active one
[  518.508974] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.710584] bond0: (slave eth0): Releasing backup interface
[  522.804110] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.003377] bond0: (slave eth0): Releasing backup interface
[  527.035284] bond0 (unregistering): Released all slaves