[  515.780665] bond0: (slave eth0): making interface the new active one
[  515.780741] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.027573] bond0: (slave eth0): Releasing backup interface
[  520.154568] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.387220] bond0: (slave eth0): Releasing backup interface
[  524.413118] bond0 (unregistering): Released all slaves