[  516.048572] bond0: (slave eth0): making interface the new active one
[  516.048647] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.335648] bond0: (slave eth0): Releasing backup interface
[  520.560221] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.854987] bond0: (slave eth0): Releasing backup interface
[  524.886773] bond0 (unregistering): Released all slaves