[  518.493177] bond0: (slave eth0): making interface the new active one
[  518.493263] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.713267] bond0: (slave eth0): Releasing backup interface
[  522.815647] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.004187] bond0: (slave eth0): Releasing backup interface
[  527.048172] bond0 (unregistering): Released all slaves