[  516.054267] bond0: (slave eth0): making interface the new active one
[  516.054357] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.296807] bond0: (slave eth0): Releasing backup interface
[  520.427832] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.639038] bond0: (slave eth0): Releasing backup interface
[  524.671193] bond0 (unregistering): Released all slaves