[  520.026489] bond0: (slave eth0): making interface the new active one
[  520.026634] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.234497] bond0: (slave eth0): Releasing backup interface
[  524.300338] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.465210] bond0: (slave eth0): Releasing backup interface
[  528.500166] bond0 (unregistering): Released all slaves