[  501.158635] bond0: (slave eth0): making interface the new active one
[  501.158711] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.358156] bond0: (slave eth0): Releasing backup interface
[  505.442602] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.642560] bond0: (slave eth0): Releasing backup interface
[  509.674388] bond0 (unregistering): Released all slaves