[  517.108127] bond0: (slave eth0): making interface the new active one
[  517.108209] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.307365] bond0: (slave eth0): Releasing backup interface
[  521.426575] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.658952] bond0: (slave eth0): Releasing backup interface
[  525.683963] bond0 (unregistering): Released all slaves