[  519.843082] bond0: (slave eth0): making interface the new active one
[  519.843160] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.078013] bond0: (slave eth0): Releasing backup interface
[  524.182293] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.369132] bond0: (slave eth0): Releasing backup interface
[  528.398044] bond0 (unregistering): Released all slaves