[  514.725885] bond0: (slave eth0): making interface the new active one
[  514.726008] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.929434] bond0: (slave eth0): Releasing backup interface
[  518.999769] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.155334] bond0: (slave eth0): Releasing backup interface
[  523.179207] bond0 (unregistering): Released all slaves