[  515.979792] bond0: (slave eth0): making interface the new active one
[  515.979861] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.217206] bond0: (slave eth0): Releasing backup interface
[  520.335292] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.500774] bond0: (slave eth0): Releasing backup interface
[  524.539682] bond0 (unregistering): Released all slaves