[  519.814687] bond0: (slave eth0): making interface the new active one
[  519.814774] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.981298] bond0: (slave eth0): Releasing backup interface
[  524.055428] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.211573] bond0: (slave eth0): Releasing backup interface
[  528.240197] bond0 (unregistering): Released all slaves