[  516.178137] bond0: (slave eth0): making interface the new active one
[  516.178217] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.335918] bond0: (slave eth0): Releasing backup interface
[  520.421778] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.564272] bond0: (slave eth0): Releasing backup interface
[  524.583171] bond0 (unregistering): Released all slaves