[  516.540748] bond0: (slave eth0): making interface the new active one
[  516.540816] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.727241] bond0: (slave eth0): Releasing backup interface
[  520.838168] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.013932] bond0: (slave eth0): Releasing backup interface
[  525.053925] bond0 (unregistering): Released all slaves