[  514.732681] bond0: (slave eth0): making interface the new active one
[  514.732798] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.940906] bond0: (slave eth0): Releasing backup interface
[  519.041887] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.222084] bond0: (slave eth0): Releasing backup interface
[  523.254979] bond0 (unregistering): Released all slaves