[  519.286250] bond0: (slave eth0): making interface the new active one
[  519.286364] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.467460] bond0: (slave eth0): Releasing backup interface
[  523.530823] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.696235] bond0: (slave eth0): Releasing backup interface
[  527.735852] bond0 (unregistering): Released all slaves