[  517.590176] bond0: (slave eth0): making interface the new active one
[  517.590264] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.740078] bond0: (slave eth0): Releasing backup interface
[  521.814103] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.961660] bond0: (slave eth0): Releasing backup interface
[  525.991699] bond0 (unregistering): Released all slaves