[  521.500060] bond0: (slave eth0): making interface the new active one
[  521.500158] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.706431] bond0: (slave eth0): Releasing backup interface
[  525.781431] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.936332] bond0: (slave eth0): Releasing backup interface
[  529.971081] bond0 (unregistering): Released all slaves