[  517.120467] bond0: (slave eth0): making interface the new active one
[  517.120549] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.370861] bond0: (slave eth0): Releasing backup interface
[  521.475810] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.663177] bond0: (slave eth0): Releasing backup interface
[  525.697153] bond0 (unregistering): Released all slaves