[  516.611061] bond0: (slave eth0): making interface the new active one
[  516.611158] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.788674] bond0: (slave eth0): Releasing backup interface
[  520.874185] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.015218] bond0: (slave eth0): Releasing backup interface
[  525.048275] bond0 (unregistering): Released all slaves