[  517.585240] bond0: (slave eth0): making interface the new active one
[  517.585320] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.819912] bond0: (slave eth0): Releasing backup interface
[  521.924494] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.105933] bond0: (slave eth0): Releasing backup interface
[  526.148914] bond0 (unregistering): Released all slaves