[  514.390552] bond0: (slave eth0): making interface the new active one
[  514.390664] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.548361] bond0: (slave eth0): Releasing backup interface
[  518.622812] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.780036] bond0: (slave eth0): Releasing backup interface
[  522.806718] bond0 (unregistering): Released all slaves