[  518.842301] bond0: (slave eth0): making interface the new active one
[  518.842388] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.024607] bond0: (slave eth0): Releasing backup interface
[  523.103036] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.247651] bond0: (slave eth0): Releasing backup interface
[  527.286617] bond0 (unregistering): Released all slaves