[  516.995488] bond0: (slave eth0): making interface the new active one
[  516.995584] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.243138] bond0: (slave eth0): Releasing backup interface
[  521.351194] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.534177] bond0: (slave eth0): Releasing backup interface
[  525.573163] bond0 (unregistering): Released all slaves