[  520.174677] bond0: (slave eth0): making interface the new active one
[  520.174742] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.381215] bond0: (slave eth0): Releasing backup interface
[  524.485397] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.670924] bond0: (slave eth0): Releasing backup interface
[  528.696871] bond0 (unregistering): Released all slaves