[  506.250480] bond0: (slave eth0): making interface the new active one
[  506.250570] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.419143] bond0: (slave eth0): Releasing backup interface
[  510.498603] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.649639] bond0: (slave eth0): Releasing backup interface
[  514.677332] bond0 (unregistering): Released all slaves