[  516.162657] bond0: (slave eth0): making interface the new active one
[  516.162765] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.407769] bond0: (slave eth0): Releasing backup interface
[  520.513260] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.697053] bond0: (slave eth0): Releasing backup interface
[  524.727934] bond0 (unregistering): Released all slaves