[  512.399356] bond0: (slave eth0): making interface the new active one
[  512.399447] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.633142] bond0: (slave eth0): Releasing backup interface
[  516.754744] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.923526] bond0: (slave eth0): Releasing backup interface
[  520.953881] bond0 (unregistering): Released all slaves