[  517.253924] bond0: (slave eth0): making interface the new active one
[  517.253999] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.500869] bond0: (slave eth0): Releasing backup interface
[  521.608825] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.781984] bond0: (slave eth0): Releasing backup interface
[  525.821996] bond0 (unregistering): Released all slaves