[  513.571908] bond0: (slave eth0): making interface the new active one
[  513.571991] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.780101] bond0: (slave eth0): Releasing backup interface
[  517.872702] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.071168] bond0: (slave eth0): Releasing backup interface
[  522.103151] bond0 (unregistering): Released all slaves