[  515.839041] bond0: (slave eth0): making interface the new active one
[  515.839118] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.093469] bond0: (slave eth0): Releasing backup interface
[  520.215652] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.439259] bond0: (slave eth0): Releasing backup interface
[  524.476145] bond0 (unregistering): Released all slaves