[  516.099332] bond0: (slave eth0): making interface the new active one
[  516.099434] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.344189] bond0: (slave eth0): Releasing backup interface
[  520.455394] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.632060] bond0: (slave eth0): Releasing backup interface
[  524.663087] bond0 (unregistering): Released all slaves