[  519.092818] bond0: (slave eth0): making interface the new active one
[  519.092896] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.286686] bond0: (slave eth0): Releasing backup interface
[  523.392480] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.569116] bond0: (slave eth0): Releasing backup interface
[  527.593080] bond0 (unregistering): Released all slaves