[  518.789042] bond0: (slave eth0): making interface the new active one
[  518.789128] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.967466] bond0: (slave eth0): Releasing backup interface
[  523.064100] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.260187] bond0: (slave eth0): Releasing backup interface
[  527.294010] bond0 (unregistering): Released all slaves