[  517.616682] bond0: (slave eth0): making interface the new active one
[  517.616745] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.825423] bond0: (slave eth0): Releasing backup interface
[  521.921672] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.116559] bond0: (slave eth0): Releasing backup interface
[  526.141308] bond0 (unregistering): Released all slaves