[  516.413489] bond0: (slave eth0): making interface the new active one
[  516.413557] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.603376] bond0: (slave eth0): Releasing backup interface
[  520.701477] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.895136] bond0: (slave eth0): Releasing backup interface
[  524.929900] bond0 (unregistering): Released all slaves