[  519.759955] bond0: (slave eth0): making interface the new active one
[  519.760029] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.987886] bond0: (slave eth0): Releasing backup interface
[  524.071139] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.272772] bond0: (slave eth0): Releasing backup interface
[  528.308749] bond0 (unregistering): Released all slaves