[  516.515023] bond0: (slave eth0): making interface the new active one
[  516.515097] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.735156] bond0: (slave eth0): Releasing backup interface
[  520.854394] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.018999] bond0: (slave eth0): Releasing backup interface
[  525.045900] bond0 (unregistering): Released all slaves