[  520.843847] bond0: (slave eth0): making interface the new active one
[  520.843917] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.003958] bond0: (slave eth0): Releasing backup interface
[  525.069639] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.230647] bond0: (slave eth0): Releasing backup interface
[  529.262625] bond0 (unregistering): Released all slaves