[  516.330166] bond0: (slave eth0): making interface the new active one
[  516.330248] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.526353] bond0: (slave eth0): Releasing backup interface
[  520.597736] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.758180] bond0: (slave eth0): Releasing backup interface
[  524.790040] bond0 (unregistering): Released all slaves