[  516.169733] bond0: (slave eth0): making interface the new active one
[  516.169800] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.406311] bond0: (slave eth0): Releasing backup interface
[  520.505190] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.690216] bond0: (slave eth0): Releasing backup interface
[  524.715150] bond0 (unregistering): Released all slaves