[  520.185108] bond0: (slave eth0): making interface the new active one
[  520.185206] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.444127] bond0: (slave eth0): Releasing backup interface
[  524.558856] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.733182] bond0: (slave eth0): Releasing backup interface
[  528.759095] bond0 (unregistering): Released all slaves