[  520.133156] bond0: (slave eth0): making interface the new active one
[  520.133278] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.296189] bond0: (slave eth0): Releasing backup interface
[  524.365053] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.526336] bond0: (slave eth0): Releasing backup interface
[  528.560079] bond0 (unregistering): Released all slaves