[  520.373857] bond0: (slave eth0): making interface the new active one
[  520.373945] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.568263] bond0: (slave eth0): Releasing backup interface
[  524.669575] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.855797] bond0: (slave eth0): Releasing backup interface
[  528.892781] bond0 (unregistering): Released all slaves