[  520.541212] bond0: (slave eth0): making interface the new active one
[  520.541293] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.690215] bond0: (slave eth0): Releasing backup interface
[  524.746889] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.917387] bond0: (slave eth0): Releasing backup interface
[  528.933073] bond0 (unregistering): Released all slaves