[  519.425346] bond0: (slave eth0): making interface the new active one
[  519.425417] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.626265] bond0: (slave eth0): Releasing backup interface
[  523.732654] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.911448] bond0: (slave eth0): Releasing backup interface
[  527.940470] bond0 (unregistering): Released all slaves