[  516.007288] bond0: (slave eth0): making interface the new active one
[  516.007359] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.213998] bond0: (slave eth0): Releasing backup interface
[  520.323847] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.509089] bond0: (slave eth0): Releasing backup interface
[  524.535015] bond0 (unregistering): Released all slaves