[  516.100984] bond0: (slave eth0): making interface the new active one
[  516.101079] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.348483] bond0: (slave eth0): Releasing backup interface
[  520.463456] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.631218] bond0: (slave eth0): Releasing backup interface
[  524.662142] bond0 (unregistering): Released all slaves