[  519.479558] bond0: (slave eth0): making interface the new active one
[  519.479624] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.673971] bond0: (slave eth0): Releasing backup interface
[  523.782438] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.962209] bond0: (slave eth0): Releasing backup interface
[  527.986185] bond0 (unregistering): Released all slaves