[  516.498888] bond0: (slave eth0): making interface the new active one
[  516.498984] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.729778] bond0: (slave eth0): Releasing backup interface
[  520.843488] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.023318] bond0: (slave eth0): Releasing backup interface
[  525.062251] bond0 (unregistering): Released all slaves