[  514.741721] bond0: (slave eth0): making interface the new active one
[  514.741818] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.934026] bond0: (slave eth0): Releasing backup interface
[  519.002298] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.162187] bond0: (slave eth0): Releasing backup interface
[  523.185143] bond0 (unregistering): Released all slaves