[  499.163612] bond0: (slave eth0): making interface the new active one
[  499.163691] bond0: (slave eth0): Enslaving as an active interface with an up link
[  503.368726] bond0: (slave eth0): Releasing backup interface
[  503.433945] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.595577] bond0: (slave eth0): Releasing backup interface
[  507.620498] bond0 (unregistering): Released all slaves