[  519.494031] bond0: (slave eth0): making interface the new active one
[  519.494134] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.739533] bond0: (slave eth0): Releasing backup interface
[  523.863918] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.083083] bond0: (slave eth0): Releasing backup interface
[  528.124993] bond0 (unregistering): Released all slaves