[  515.542961] bond0: (slave eth0): making interface the new active one
[  515.543036] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.777822] bond0: (slave eth0): Releasing backup interface
[  519.895586] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.070733] bond0: (slave eth0): Releasing backup interface
[  524.102699] bond0 (unregistering): Released all slaves