[  517.834500] bond0: (slave eth0): making interface the new active one
[  517.834597] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.993382] bond0: (slave eth0): Releasing backup interface
[  522.069035] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.223549] bond0: (slave eth0): Releasing backup interface
[  526.262261] bond0 (unregistering): Released all slaves