[  519.612658] bond0: (slave eth0): making interface the new active one
[  519.612783] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.949681] bond0: (slave eth0): Releasing backup interface
[  524.093733] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.280024] bond0: (slave eth0): Releasing backup interface
[  528.306919] bond0 (unregistering): Released all slaves