[  515.199142] bond0: (slave eth0): making interface the new active one
[  515.199209] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.450322] bond0: (slave eth0): Releasing backup interface
[  519.572693] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.798164] bond0: (slave eth0): Releasing backup interface
[  523.836994] bond0 (unregistering): Released all slaves