[  507.111544] bond0: (slave eth0): making interface the new active one
[  507.111706] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.309198] bond0: (slave eth0): Releasing backup interface
[  511.397070] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.601517] bond0: (slave eth0): Releasing backup interface
[  515.619476] bond0 (unregistering): Released all slaves