[  517.167127] bond0: (slave eth0): making interface the new active one
[  517.167215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.373459] bond0: (slave eth0): Releasing backup interface
[  521.475859] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.652043] bond0: (slave eth0): Releasing backup interface
[  525.699036] bond0 (unregistering): Released all slaves