[  515.994574] bond0: (slave eth0): making interface the new active one
[  515.994644] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.217896] bond0: (slave eth0): Releasing backup interface
[  520.322040] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.503069] bond0: (slave eth0): Releasing backup interface
[  524.525031] bond0 (unregistering): Released all slaves