[  508.418638] bond0: (slave eth0): making interface the new active one
[  508.418733] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.667709] bond0: (slave eth0): Releasing backup interface
[  512.777148] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.955040] bond0: (slave eth0): Releasing backup interface
[  516.996890] bond0 (unregistering): Released all slaves