[  511.642361] bond0: (slave eth0): making interface the new active one
[  511.642468] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.866109] bond0: (slave eth0): Releasing backup interface
[  515.985135] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.150978] bond0: (slave eth0): Releasing backup interface
[  520.172909] bond0 (unregistering): Released all slaves