[  515.991659] bond0: (slave eth0): making interface the new active one
[  515.991775] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.220145] bond0: (slave eth0): Releasing backup interface
[  520.343116] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.566955] bond0: (slave eth0): Releasing backup interface
[  524.593942] bond0 (unregistering): Released all slaves