[  513.802838] bond0: (slave eth0): making interface the new active one
[  513.802912] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.042897] bond0: (slave eth0): Releasing backup interface
[  518.143128] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.325146] bond0: (slave eth0): Releasing backup interface
[  522.349959] bond0 (unregistering): Released all slaves