[  518.430958] bond0: (slave eth0): making interface the new active one
[  518.431096] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.644738] bond0: (slave eth0): Releasing backup interface
[  522.731419] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.873716] bond0: (slave eth0): Releasing backup interface
[  526.899445] bond0 (unregistering): Released all slaves