[  514.386575] bond0: (slave eth0): making interface the new active one
[  514.386696] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.630910] bond0: (slave eth0): Releasing backup interface
[  518.778126] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.974042] bond0: (slave eth0): Releasing backup interface
[  523.001969] bond0 (unregistering): Released all slaves