[  520.860692] bond0: (slave eth0): making interface the new active one
[  520.860765] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.013519] bond0: (slave eth0): Releasing backup interface
[  525.096849] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.300433] bond0: (slave eth0): Releasing backup interface
[  529.332317] bond0 (unregistering): Released all slaves