[  513.479365] bond0: (slave eth0): making interface the new active one
[  513.479468] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.725921] bond0: (slave eth0): Releasing backup interface
[  517.845818] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.013820] bond0: (slave eth0): Releasing backup interface
[  522.041830] bond0 (unregistering): Released all slaves