[  517.689845] bond0: (slave eth0): making interface the new active one
[  517.689955] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.886123] bond0: (slave eth0): Releasing backup interface
[  521.952669] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.115277] bond0: (slave eth0): Releasing backup interface
[  526.145226] bond0 (unregistering): Released all slaves