[  520.439151] bond0: (slave eth0): making interface the new active one
[  520.439230] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.615065] bond0: (slave eth0): Releasing backup interface
[  524.675437] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.845121] bond0: (slave eth0): Releasing backup interface
[  528.871886] bond0 (unregistering): Released all slaves