[  515.479576] bond0: (slave eth0): making interface the new active one
[  515.479687] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.638573] bond0: (slave eth0): Releasing backup interface
[  519.706957] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.863179] bond0: (slave eth0): Releasing backup interface
[  523.895207] bond0 (unregistering): Released all slaves