[  516.067399] bond0: (slave eth0): making interface the new active one
[  516.067496] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.282169] bond0: (slave eth0): Releasing backup interface
[  520.393154] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.566157] bond0: (slave eth0): Releasing backup interface
[  524.600133] bond0 (unregistering): Released all slaves