[  513.375890] bond0: (slave eth0): making interface the new active one
[  513.375959] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.591506] bond0: (slave eth0): Releasing backup interface
[  517.700623] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.886122] bond0: (slave eth0): Releasing backup interface
[  521.907987] bond0 (unregistering): Released all slaves