[  509.384505] bond0: (slave eth0): making interface the new active one
[  509.384571] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.627159] bond0: (slave eth0): Releasing backup interface
[  513.739283] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.908067] bond0: (slave eth0): Releasing backup interface
[  517.936035] bond0 (unregistering): Released all slaves