[  507.349036] bond0: (slave eth0): making interface the new active one
[  507.349110] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.501743] bond0: (slave eth0): Releasing backup interface
[  511.588844] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.793683] bond0: (slave eth0): Releasing backup interface
[  515.818426] bond0 (unregistering): Released all slaves