[  519.963798] bond0: (slave eth0): making interface the new active one
[  519.963910] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.180056] bond0: (slave eth0): Releasing backup interface
[  524.249829] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.410370] bond0: (slave eth0): Releasing backup interface
[  528.434237] bond0 (unregistering): Released all slaves