[  519.265939] bond0: (slave eth0): making interface the new active one
[  519.266032] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.474683] bond0: (slave eth0): Releasing backup interface
[  523.561897] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.763354] bond0: (slave eth0): Releasing backup interface
[  527.795315] bond0 (unregistering): Released all slaves