[  507.856332] bond0: (slave eth0): making interface the new active one
[  507.856397] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.082701] bond0: (slave eth0): Releasing backup interface
[  512.175498] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.368971] bond0: (slave eth0): Releasing backup interface
[  516.402890] bond0 (unregistering): Released all slaves