[  513.689818] bond0: (slave eth0): making interface the new active one
[  513.689894] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.845070] bond0: (slave eth0): Releasing backup interface
[  517.916722] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.074393] bond0: (slave eth0): Releasing backup interface
[  522.114336] bond0 (unregistering): Released all slaves