[  515.789351] bond0: (slave eth0): making interface the new active one
[  515.789449] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.025377] bond0: (slave eth0): Releasing backup interface
[  520.140084] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.319746] bond0: (slave eth0): Releasing backup interface
[  524.346050] bond0 (unregistering): Released all slaves